Answer:
56 people drink 3 cups daily
Step-by-step explanation:
What's the total number of people that drink 3 cups?
Total number of people = 400
7 / 10 were asked said yes
Number of people that said yes = (7 / 10) × 400 = 280
280 people drink tea.
20% of 280 people drink 3 cups daily, whats the number = ?
20% of 280 = ?
20 / 100 = x / 280
(20 × 280) = (100 × x)
5600 = 100x
X = 5600 / 100
X = 56 people
56 people drink 3 cups of tea daily.
Answer:
56 people drink 3 cups daily
Step-by-step explanation:
If you divide 6! by 4!
you are
evaluating
P(6,4)
P(4,6)
P(6,2)
I'm pretty sure you would be evaluating P(6,2)
Answer:
P(6,4)
Step-by-step explanation:
If you divide 6! by 4! you are evaluating P(6,4).
Find the approximate surface to area to volume ratio of a softball with a radius of 2inches
Answer:
1.5
---------------------
PLZ HELP!!!!
A pedestal in a craft store is in the shape of a triangular prism. The bases are right triangles with side lengths of 9 inches, 12 inches, and 15 inches. The store owner wraps a piece of rectangular cloth around the pedestal, but does not cover the identical bases of the pedestal with cloth. The area of the cloth is 252 square inches.
Part 1 out of 2
Complete the explanation for the distance around the base of the pedestal and how to find it.
The distance is __ inches; the base is a ___ with ___ 9 ___ 12 ___ 15 = ____ in.
Answer:
this is a tought one but ima just say 19 in because i feel like this is in a pattern
Answer:
36, Triangle, +, +, 36
Step-by-step explanation:
What is the simplified value of the exponential expression 16 1/4?
(A) 1/2
(B) 1/4
(C) 2
(D) 4
Answer:
c
Step-by-step explanation:
the answer is c
The simplified value of the exponential expression 16^(1/4) is 2.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The simplified value of the exponential expression 16^(1/4) is,
[tex]16^{\frac14}\\\\= \sqrt[4]{16}\\\\= \sqrt[4]{2^4}\\\\= 2[/tex]
Hence, the simplified value of the exponential expression 16^(1/4) is 2.
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Can someone please help with these problems I’m having trouble pls
When the chords intersect inside the circle the sum of the vertical angles and the sum of the referenced arcs are the same. Since the vertical angles are congruent, each is half the sum of the referenced arcs.
Similarly when the chords intersect outside the circle, the angle is half the difference of the arc measures.
It's the same with a tangent; in that case there's just not a part of the arc that's not counted on the side with the tangent.
OK, that's how. Let's try some.
1. x = (88 + 86)/2 = 87
2. x = (150 - 60)/2 = 45
3. The angle is exactly half the subtended arc,
x = 110/2 = 55
4. The referenced arc is 360 - 220 = 140 degrees and x is half, 70.
5. Outside, half the difference, x = (90-20)/2 = 35
6. Angle outside, inner arc 6 degrees, vertical angle is 90 degrees.
90 = (x - 6)/2
180 = x - 6
x = 186
7. There's a special rule for this case but we can treat it as outside, little arc x, big arc 360-x,
60 = (360 - x - x)/2
120 = 360 - 2x
2x = 240
x = 120
8. Inner arc x, outer arc is 360-140-x = 220-x. Half the difference is 38,
38 = (220 - x - x)/2
76 = 220 - 2x
2x = 220 - 76
x = (220 - 76)/2 = 72
9. x is formed by a tangent and a radius, so a right angle, x=90
y is subtended by a 35 degree angle so y=70
10. Remaining triangle angle is 180 - 62 - 28 = 90. Arc that subtends it is double, 180. That means the long side is a diameter.
11. Remaining triangle angle is 180 - 50 - 70 = 60. x=120, y=100, z=140
12. Remaining arc 360 - 170 - 90 = 100. Angles are half.
x=45, y=50, z=85
Simplify 6^3 x 6^4 *
Answer:
6^7
Step-by-step explanation:
6^3 * 6^4
We know that a^b*a^c = a^(b+c)
6^(3+4)
6^7
Answer:
6^3 x 6^4 = 279936
Hope this helped!
The perimeter of the isosceles triangle shown is 53 cm. What is the value of x?
Answer:
21 cm
Step-by-step explanation:
Since this is an isosceles triangle, the two sides with a line through them must have the same value of x. Therefore, you can set up the following equation:
2x+11=53
2x=42
x=21 cm
Hope this helps!
Answer:
21
Step-by-step explanation:
53 - 11 = 42
42/2 = 21
~ Please mark me as brainliest :)
Find the first four iterates of the function f(x) = 7x + 2 if X0= 3.
a. 7, 12, 18, 36
C. 3, 23, 47, 81
b. 23, 163, 1143, 8003
d. 23, 76, 114, 208
The first four iterates of the function f(x) are 23, 163, 1143 and 8003
The function is given as:
[tex]f(x) = 7x + 2[/tex]
Where:
[tex]x_o=3[/tex]
Substitute 3 for x in f(x)
[tex]f(3) = 7 \times 3 + 2[/tex]
[tex]f(3) = 23[/tex]
Substitute 23 for x in f(x), for the next iteration
[tex]f(23) = 7 \times 23 + 2[/tex]
[tex]f(23) = 163[/tex]
Substitute 163 for x in f(x), for the next iteration
[tex]f(163) = 7 \times 163 + 2[/tex]
[tex]f(163) = 1143[/tex]
Substitute 1143 for x in f(x), for the next iteration
[tex]f(1143) = 7 \times 1143 +2[/tex]
[tex]f(1143) = 8003[/tex]
Hence, the first four iterates of the function f(x) are 23, 163, 1143 and 8003
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James bought a sweater that cost $15.99 and some socks that cost $0.99 per pair. The total cost was $21.93. Write an question and solve it to find how many pairs of socks that James bought [ignore sales tax]
Can someone help me please!
Answer:
Nathan buys six socks
Step-by-step explanation:
You times 0.99 by six and get your answer when you add the number you add to the cost of the sweater
how many x intercepts are in y = x 2+ 4x + 5
Answer:
0 x-intercepts
Step-by-step explanation:
In order to find the x-intercepts ,you need to solve this equation
x² + 4x + 5 = 0 for x and see how many solutions you get:
x² + 4x + 5 = 0
∆ = 4² - 4×1×5 = 16 - 20 = -4
since ∆ < 0 Then the equation has no solution then our Function has none x-intercepts.
check the graph of the function f(x) = x² + 4x + 5 (below)
Find the equation of the linear function represented by the table below in slope-intercept form.
Answer:
y = - 3x - 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 7) and (x₂, y₂ ) = (2, - 10) ← 2 ordered pairs from the table
m = [tex]\frac{-10+7}{2-1}[/tex] = - 3 , thus
y = - 3x + c ← is the partial equation
To find c substitute any ordered pair into the partial equation
Using (2, - 10) , then
- 10 = - 6 + c ⇒ c = - 10 + 6 = - 4
y = - 3x - 4 ← equation of linear function
x squared + 12x +3 = 7 solve by completing the square
Answer:
x = -6 ± 2sqrt(10)
Step-by-step explanation:
x^2 + 12x+3 = 7
Subtract 3 from each side
x^2 +12x = 4
Take the coefficient of x
12
Divide by 2
12/2 = 6
Square it
6^2 =36
Add this to each side
x^2 +12x +36 = 4+36
(x+6)^2 = 40
Take the square root of each side
sqrt((x+6)^2) =± sqrt(40)
x+6 = ± sqrt(40)
x+6 = ± sqrt(4)sqrt(10)
x+6 =± 2sqrt(10)
Subtract 6 from each side
x+6-6 = -6 ± 2sqrt(10)
x = -6 ± 2sqrt(10)
Answer:
(x + 6)² = 40 → x = ±2√10 - 6
Step-by-step explanation:
x²+12x+3=7 can be solved by completing the square
To do so we must first find the term we are adding to both sides of the equation by using [tex](\frac{b}{2} )^2}[/tex]
In this case, our b is 12, so plugging this into the formula we get [tex](\frac{12}{2} )^{2} =6^{2} =36[/tex]
We first need to subtract the 3 from both sides of the equation to get x²+12x=4
We then can add the 36 to both sides of the equation: x² + 12x + 36 = 4 + 36 → x² +12x + 36 = 40
Now we are able to factor the left side of the equation to get (x + 6)² = 40
To solve for x we need to take the square root of both sides [tex]\sqrt{(x+6)^{2} } =\sqrt{40}[/tex] to get x + 6 = ±2√10
Then we need to subtract 6 from both sides to get x = ±2√10 - 6
which best represents the inequality? 30 POINTS!!!
A. y<32x+1
B. y≤32x+1
C. y>32x+1
D. y≥32x+1
Answer:
A
Step-by-step explanation:
Equation of the dotted line:
Slope: (-2-1)/(-2-0) = -3/-2 = 3/2
y = (3/2)x + 1
Region lies below the line, and the line is dotted:
y < (3/2)x + 1
Jake used 1 centimeter cubes to build a right rectangular prism that has a volume of 24 cubic centimeters. which prism could represent the prism that jake built? please answer fast
Answer:
Shape B (The 2 by 12 one)
Step-by-step explanation:
Because the volume of shape B is 24 and the volume of shape A is 18.
The prism that could represent the prism that jake built is prism B.
What is a prism?A prism is a polyhedron comprising an n-sided polygon base, a second base which is a translated copy of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases.
The volume of the prism = 24 cubic centimetres.
The volume of a cube = 1 cube centimetre
This means a total of 24 cubes would have been used to make a prism of 24 cubic centimetres volume.
So, the prism that jake built is prism B i.e. 2*18 type prism.
Hence, the prism that could represent the prism that jake built is prism B.
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Which expression is equivalent to 4(x+2)?
6x
4(x)+4(2)
4x)+4
8x
Answer:
4(x)+ 4(2)
Step-by-step explanation:
4(x + 2) = 4(x)+ 4(2)
1+(-2)+(-3) =
-
Simplify the expression
Answer: -4
Step-by-step explanation:
negatives are basically just 1-2-3
Answer:
-4
Step-by-step explanation:
1+(-2)=-1
-1+(-3)=-4
so the simplified is -4
8x – 10 = 62
6
7
13
9
Answer:
x = 9
Step-by-step explanation:
8x - 10 = 62
Add 10 to each side
8x-10+10 = 62+10
8x = 72
Divide each side by 8
8x/8=72/8
x = 9
A mixed fraction, expressed in lowest terms, is in the form a b/c
The fraction is halved and then 3/4 is added
The result is 1 9/20
find the values of a, b, and c
Answer:
The answer is actually a proper fraction = 7/20
Step-by-step explanation:
A mixed fraction is expressed as : a b/c
Let the mixed fraction be represented by Y
a) The fraction is halved
= Y ÷ 1/2 = Y/ (1/2)
In mathematics, when we divide a number by a fraction, the number is multiplied by the reciprocal of the fraction.
Y × 2 = 2Y
b) Then 3/4 is added
= 2Y + 3/4
c)The result is 1 9/20
2Y + 3/4 = 1 9/20
Converting the mixed fraction to improper fraction, we have
1 9/20 = (20 × 1) + 9/ 20 = 29/20
Therefore,
2Y + 3/4 = 29/20
2Y = 29/20 - 3/4
The Lowest common multiple of the right hand side = 20
2Y = (29 - 3×5)/ 20
2Y = 29 - 15/20
2Y = 14/20
2Y = 7/10
To find Y , we cross multiply
2Y × 10 = 7
20Y = 7
Y = 7/20
Therefore, the mixed fraction represented by Y is actually a proper fraction = is 7/20
Answer:
a = 1
b = 2
c = 5
Step-by-step explanation:
Given
Mixed fraction: a b/c
Result after arithmetic operations = 1 ⁹/20
Required.
Find a, b, c
From the question, the fraction is halved. This is represented as follows
a b/c ÷ 2
= a b/c * ½
Then, ¾ is added. This is represented by
a b/c * ½ + ¾
The result is 1 ⁹/20. This is represented by
a b/c * ½ + ¾ = 1⁹/20
Convert mixed fraction to improper fraction
a b/c * ½ + ¾ = 29/20
Subtract ¾ from both sides
a b/c * ½ + ¾ - ¾ = 29/20 - ¾
a b/c * ½ = (29 - 15)/20
a b/c * ½ = 14/20
a b/c * ½= 7/10
Multiply both sides by 2
2 * a b/c * ½= 7/10 * 2
a b/c = 14/10
a b/c = 7/5
Convert mixed fraction to improper fraction
a b/c = 1⅖
By comparison,
a = 1
b = 2
c = 5
Help please thank you lol
Answer:
DE=3 cm
Step-by-step explanation:
From the information we know, we can tell that triangle ABC is a scale factor of 2 from triangle DEF, because 10/5=2.
Side DE would be proportional to side AB.
Side AB is 6, so we would have to divide that by 2, because of our scale factor.
6/2=3.
Hope this helped! Have a good rest of your day!
Question 2
The oak tree is 40 feet taller than the maple. Write an expression that represents the height
oak.
O=
Answer: O = m + 40
Step-by-step explanation: O is 40 feet taller than the maple, so we can use m (maple). However tall the maple is, we just add 40.
Hope this helps :)
A
4
1
2
-ounce hamburger patty has
25
1
2
grams of protein, and 6 ounces of fish has 32 grams of protein. Determine the grams of protein per ounce for each type of food.
Select from the drop-down menus to correctly complete each statement.
A hamburger patty has approximately
Choose...
grams of protein per ounce.
The fish has approximately
Choose...
grams of protein per ounce.
Answer:
Hamburger patty is 5.67 per ounce and the fish is 5.33 per ounce
Step-by-step explanation:
The hamburger patty has approximately 5.7 grams of protein per ounce and the fish has approximately 5.3 grams of protein per ounce.
What is a fraction?Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have:
[tex]4\frac{1}{2}[/tex] ounce hamburger patty has [tex]25\frac{1}{2}[/tex] grams of protein
[tex]4\frac{1}{2}[/tex] = 9/2
[tex]25\frac{1}{2}[/tex] = 51/2
Let's suppose each hamburger patty has x grams of protein so the value of x:
[tex]\rm x = \frac{\frac{51}{2}}{\frac{9}{2} }[/tex]
x = (51/2)×(2/9)
x = 5.66 ≈ 5.7 grams of protein
For fish Let's suppose each fish has y grams of protein so the value of y:
[tex]\rm y =\frac{32}{6}[/tex]
y = 5.3 grams of protein
Thus, the hamburger patty has approximately 5.7 grams of protein per ounce and the fish has approximately 5.3 grams of protein per ounce.
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There are 25 students in the school's Pep Club.
1. The Pep Club can buy new uniforms from 2 different suppliers:
Company A charges $500, plus $22 per uniform.
Company B charges $360, plus $28 per uniform.
a) Define a variable, then write an equation that can be used to determine the number of uniforms that will result in equal costs at both companies.
b) Solve the equation. Verify the solution.
c) Which company should the Pep Club choose? Justify your recommendation.
d) How much money must the Pep Club raise to purchase the uniforms?
Answer:
company b 10,080 dollars
Step-by-step explanation:
23 number of uniforms that will result in equal costs at both companies.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that there are 25 students in the school's Pep Club.
The Pep Club can buy new uniforms from 2 different suppliers:
Company A charges $500, plus $22 per uniform.
Company B charges $360, plus $28 per uniform.
500+22x=360+28x
Subtract 360 on both sides
500+22x-360=28x
140+22x=28x
Subtract 22x on both sides
140=6x
Divide both sides by 6
x=23.3
The number of uniforms that will result in equal costs at both companies is 23.
The company A charges more than company B.
company B should the Pep Club choose
Hence, 23 number of uniforms that will result in equal costs at both companies.
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An experiment consists of rolling a standard number cube. Use the results in the table to find the experimental probability of each event.
Can someone help me with these questions, or explain how to do them?
Answer:
Divide the outcome with the frequency
An experiment consists of rolling a standard number cube. The experimental probability of each event is as follows 1/6, 1/8, 5/36, and 2/13.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
Form the result in the table of outcomes and the frequency
a. The probability of rolling a 1 = 1/6
b. The probability of rolling a 5 = 1/8
c. The probability of not rolling a 3 = 5/36
d. The probability of not rolling a number less than 5 = 2/13
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Evaluate: 64.2 % –7.5
A. –11.68
B. –8.56
C. 8.56
D. 11.68
Answer:I don't know if your answer is there:/ -6.858
Step-by-step explanation:
64.2
100
−7.5
=0.642−7.5
=−6.858
Answer:
the answer is B.
Step-by-step explanation:i passed on the quiz if you would like to do the math you can ^^
What is the equation of the line?
That's a vertical line, no slope, so no y=something.
Answer: x = -9
6 students share 4 bagels equally, how much does each person get
Answer:
(2/3) bagel per student
Step-by-step explanation:
Find the unit rate (fraction of a bagel per person):
4 bagels
----------------- = (2/3) bagel per student
6 students
I just circumference of a pizza if the diameter is 10 inches
Answer:
10π
Step-by-step explanation:
The circumference of a circle can be found with the formula πd, where d is the diameter. When we plug in 10 for d, we get 10π inches. Hope this helps!
Please help, I will give 15 points and brainiest
Answer:
Q: How much of the cylinder does the sphere fill
A: The sphere fills the whole cylinder
Step-by-step explanation:
The sphere's height, as written in the picture (The red words) says 2r and the same goes for the cylinder, therefore if they both say, "h = 2r" then it is evident that they both are equivalent. Therefore, the Sphere fills up the whole cylinder.
Laura framed her rectangular garden with boards. She used 1 board on each side. The longer sides
were 7.5 feet long, and the shorter sides were 6.5 feet long. What is the area of her garden in square
feet?
A) 14
B) 28
C) 42.25
D) 48.75
Answer: D) 48.75
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a rectangle: length x width
Replacing with the values given and solving for A (area)
A= 7.5 ft x 6.5 ft =48.75 ft2
The area of the garden in square feet is 48.75. (option D).
Feel free to ask for more if needed or if you did not understand something.
Help me with this last question please
Answer:
C
Step-by-step explanation:
C
46x+23=46x+23
23=23
Infinitely many solutions