Answer:
30 and 9
Step-by-step explanation:
x+y=39 , x-y=21
Solve for x:
x+y=39 , x-y=21
x= 30
Substitute x with 30:
(30)+y=39 , (30)-y=21
Solve for y:
y=9
How many students got eight or more answers correct?
Answer:
9
Step-by-step explanation:
You have to count the number of dots there are after the number 8. (This includes the dotes above 8.)
Answer:
9 students
Step-by-step explanation:
Assuming that these dots represent students, let us begin with the amount of students that answered 8 questions right;
Students who got 8 answers right ⇒ 4 students,
Students who got 8 answers right ⇒ 3 students,
Students who got 10 answers right ⇒ 2 students
Now we are to compute the value of the students who received 8 or more answers right, provided the questions are out of 10;
Students who received 8 or more answers right; 4 + 3 + 2 = 9 students
Solution; 9 students
Which of these tables represents a linear function?
Answer:
The first one
Answer:
Number 1 I think
Step-by-step explanation:
find the value of x
Answer:
x = 118.572091090591
Step-by-step explanation:
we are given a right triangle then
tan(16) = 34/x
then
x = 34÷tan(16)
=118.572091090591
Info :
tan(16) = 0.286745385759
Need to find angle z please help. Angle x and y are 56 degrees.
Answer:
43º
Step-by-step explanation:
56*2=112
360-112=248
248/2=124
124-81=43
second attempt. anyone know?
Answer:
it is -16
Step-by-step explanation:
Sara went to the store and bought 4 apples, 5 peaches and 10 bananas. What is the ratio of peaches to all fruit?
4:5
5:10
1:2
19:5
5:19
5:4
Answer:
i might be wrong but i think its 5:19
Step-by-step explanation:
Answer:
5:19
Step-by-step explanation:
You would just add 5 and 4 and 10 to get 19 and since there are 5 peaches it would be 5:19.
Select the correct answers
options-
(0,0)
(1, 2)
(3, 6)
(4, 2)
(10, 5)
(4, 8)
Answer:
see below
Step-by-step explanation:
y = 1/2x
Substitute the points into the equation and see if it is true
If it is true it is on the line
(0,0)
y = 1/2x
0 = 1/2(0)
0=0 true
(1, 2)
y = 1/2x
2 = 1/2(1)
2=1/2 false
(3, 6)
y = 1/2x
3 = 1/2(6)
3=3 true
(4, 2)
y = 1/2x
2 = 1/2(4)
2=2 true
(10, 5)
y = 1/2x
5 = 1/2(10)
5=5 true
(4, 8)
y = 1/2x
8 = 1/2(4)
8=4 false
In terms of power is the volume of the sphere
Work Shown:
The diameter is 60 feet, so the radius is half that at 60/2 = 30 feet.
Plug r = 30 into the formula below and simplify
V = (4/3)*pi*r^3
V = (4/3)*pi*(30)^3
V = (4/3)*pi*27000
V = (4/3)*27000*pi
V = 36000pi
Answer:
[tex]36000\pi ft^3[/tex]
Step-by-step explanation:
[tex]V=\frac{4}{3} \pi r^3\\=\frac{4}{3} \pi 30^3\\=113097.336ft^3\\[/tex]
In terms of Pi this equals
[tex]36000\pi ft^3[/tex]
Plez halp with question bc im smol brain
Answer:
B. y= 2x–15
Step-by-step explanation:
The equation that represents the line that passes through the points (8, 1) and (10,5) is y= 2x–15
"x" is found on the left hand side of the bracket and "y" is found on the right hand side of the bracket :)
(8, 1) and (10, 5)
x in the first bracket is 8 and x in the second bracket is 10.
y in the first bracket is 1 and y in the second bracket is 5.
When this equation is applied to find the value for y we get:
y= 2x-15
y= 2(8)-15
y= 16-15
y= 1
y= 2x-15
y= 2(10)-15
y= 20-15
y= 5
We got back the values of y and this means that the equation was correctly chosen and the answer is correct :)
please answer in full sentences , and show your work.
Answer:
b) ∠4 = m∠U + m∠L
∠4 = 25° + 52°
∠4 = 77°
Step-by-step explanation:
a) Exterior Angle Theorem. The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle.
A cylinder has a base diameter of 8 centimeters and a height of 7 centimeters.what is its volume in cubic centimeters,to the nearest tenths place
The volume of the cylinder is approximately 351.9 cubic centimeters.
What is a cylinder?A cylinder is a 3-D figure that has a radius and a height.
The volume of a cylinder is given as πr²h.
Example:
The volume of a cup with a height of 5 cm and a radius of 2 cm is
Volume.
= 3.14 x 2 x 2 x 5
= 62.8 cm³
We have,
The volume of a cylinder can be calculated using the formula:
V = πr²h,
where r is the radius of the base and h is the height.
Since the base diameter is given as 8 centimeters, the radius is half of that or 4 centimeters.
Substituting these values into the formula, we get:
V = π (4 cm)² (7 cm)
V ≈ 351.86 cm³
Rounding this answer to the nearest tenth gives a final answer of V ≈ 351.9 cm^3.
Therefore,
The volume of the cylinder is approximately 351.9 cubic centimeters.
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the sales of a particular brand of children’s athletic shoes rose from 6900000 to 7500000. find the percent of increase in sales. round to the nearest tenth of a percent if necessary
Answer:
6900000 + (6900000 * x) = 7400000
This equation is telling us 6900000 plus 6900000 times a specific percent will get you 7400000, which is what you want.
6900000 + (6900000 * x) = 7400000
6900000 + 6900000x = 7400000
Subtract 6900000 from both sides.
6900000x = 500000
Divide both sides by 6900000
x = 0.0724637681, or .07 when rounded to the nearest tenth.
convert .07 to a percentage by moving the decimal point two places to the right.
.07 = 7%
The sales of the children's athletic shoes rose about 7%
Step-by-step explanation:
Julie and Ryan want to refinish the gym floor at the community center. The rectangular floor is 15.2 meters wide and 25.6 meters long. If each gallon of polyurethane covers about 180 square meters, how many gallons should they buy?
Answer:
3 gallons
Step-by-step explanation:
We need to find the area of the floor first:
25.6*15.2=389.12
Now we divide the surface area by gallons of polyurethane.
389.12÷180=2.161777777777777777777777777777....≈2.16 gallons needed. But OH WAIT! You can't buy 0.16 of a gallon so you need 3 gallons.
Can someone help me with this physics equation please I am really in need of help
If 120 V is applied to refrigerator with a resistance of 14.0 2, calculate the
current flowing through the refrigerator.
Answer:
The current is approximately 8.571 Amps
Step-by-step explanation:
You are supposed to use Ohm's Law for this problem.
Recall that Ohm's Law gives you the relationship between voltage applied (V), resistance (R) and current (I):
[tex]V=I\,*\,R[/tex]
If the units of resistance are ohms, and the voltage is in volts, the current will be given in Amps (amperes). Then solving for the current (I) in the above equation:
[tex]I=\frac{V}{R} \\I=\frac{120}{14} \\I=8.571\,\,Amps[/tex]
Tony will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $38 and costs an additional $0.13 per mile driven
The second plan has an initial fee of $49 and costs an additional $0.09 per mile driven
for what amount of driving do the two plans cost the
What to the cout when the two plans cout the same?
Answer:
He need to cover 275 miles for same cost for both plans
Step-by-step explanation:
Let x be the no. of miles
Case 1 :
Initial fee = $38
Additional cost of 1 mile = 0.13
Additional cost of x miles = 0.13x
So, total cost = 38+0.13x
Case 2 :
Initial fee = $49
Additional cost of 1 mile = 0.09
Additional cost of x miles = 0.09x
So, total cost = 49+0.09x
Now we are supposed to find amount of driving do the two plans cost the same
So, 38+0.13x=49+0.09x
0.13x-0.09x=49-38
0.04x=11
[tex]x=\frac{11}{0.04}[/tex]
x=275
Hence he need to cover 275 miles for same cost for both plans
Calculate how much it would cost for you to borrow $100,000 at 10.5% interest
Answer:
$110,500
Step-by-step explanation:
100000 * 0.105 + 100000
initial investment * interest rate + down payment
WHICH ONE DOESN'T BELONG ? Circle the
measure that does not belong with the other three. Explain
your reasoning..PLS HELP HURRY BEST ANSWER GETS BRAINLESST!
Answer:
3500 km
Step-by-step explanation:
3. If a snail moves
[tex]1 \times \frac{1}{2} [/tex]
feet in
[tex]3 \times \frac{3}{4} [/tex]
hours, what is its speed in feet per hour? Show your work and
simplify your answer.
What is the value of n?
Answer:
The correct answer of this question is A. 95
The ratio of the number of students at the zoo in the morning to the number of students at the zoo in the afternoon was 5:3. There were 145 students at the zoo in the morning. What was the number of students at the zoo in the afternoon?
Answer:
6:8
Step-by-step explanation:
Hope this helps!!!
can anyone help me w this acellus question
Answer:
( 9,0 ) (0,21)
Step-by-step explanation:
write an equation in standard form for the line that passes through (3,-1) and (-5,-3)
Answer:
y = 1/4x - 1.75
Step-by-step explanation:
standard form is y = mx + b
to get m you need to calculate the slope between the given points
m= (y1-y2)/(x1-x2)
m = (-1 - (-3))/(3 - (-5)) = 2/8 = 1/4
now you need to find the constant b by plugging in one of your points
y = 1/4x + b
-1 = 1/4(3) + b
b = -1 - (3/4)
b = -7/4 or -1.75
Answer:
0 = x - 4y - 7
Step-by-step explanation:
Moving from (-5, -3) to (3, -1), we see that x (the run) increases by 8 and y (the rise) incrases by 2. Thus, the slope of the line connecting these two points is m = rise / run = 2/8, or 1/4.
Use the slope-intercept form of the equation of a straight line first:
y = mx + b becomes -1 = (1/4)(3) + b, or (after multiplying all three terms
by 4) -4 = 3 + 4b. Then 4b = -7, and b = -7/4.
Then the desired equation is y = (1/4)x - 7/4, or
4y = x - 7, or
0 = x - 4y - 7. This is the desired equation in standard form.
(2x+8)−(x+8)=
math 10 points
Answer:
x
Step-by-step explanation:
(2x+8)-(x+8)
Distribute
2x+8-x-8
Combine like terms
2x-x= x
8-8= 0
x
Two classmates, Aisha and Brandon, want to attend two school activities
over the coming weekend. They have one parking pass between them. The
probabilities that the classmates will attend each event are shown in the
table.
Aisha
Brandon
0.90
0.71
Probability of attending
the Saturday activity
Probability of attending
the Sunday activity
0.68
0.89
They decide to let the person more likely to attend both events have the
parking pass. Assuming that attendance at one activity is independent of
attendance at the other, who is more likely to attend both activities?
A. Aisha. She has a 0.61 probability of attending both activities.
B. Brandon. He has a 0.71 probability of attending both activities.
C. Brandon. He has a 0.63 probability of attending both activities.
Answer:
C. Brandon. He has a 0.63 probability of attending both activities.
Step-by-step explanation:
Probability of attending Probability of attending
the Saturday activity the Sunday activity
Aisha 0.90 0.68
Brandon 0.71 0.89
Given that attendance at one activity is independent of attendance at the other, the probability that Aisha attends both activities is: 0.9*0.68 = 0.61, and the probability that Brandon attends both activities is: 0.71*0.89 = 0.63
Brandon has a 0.63 probability of attending both activities.
The correct option is (C).
What is probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.
Probability of attending Probability of attending
( Saturday) ( Sunday )
Aisha 0.90 0.68
Brandon 0.71 0.89
As, attendance at one activity is independent of attendance at the other activity.
P( Aisha attends both activities)
=0.9*0.68
= 0.61,
P(Brandon attends both activities)
= 0.71*0.89
= 0.63
Hence, Brandon. He has a 0.63 probability of attending both activities.
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plz help me find it
｡☆✼★ ━━━━━━━━━━━━━━ ☾
360 - 285 = 75
It would be 75.
Have A Nice Day ❤
Stay Brainly! ヅ
- Ally ✧
｡☆✼★ ━━━━━━━━━━━━━━ ☾
If x varies directly as y, and x = 200 when y = 11, find y when x = 500. Please algebraic solution :) thanks!
Answer:
x⠀⠀⠀⠀⠀|⠀⠀⠀⠀200⠀⠀⠀⠀|⠀⠀⠀⠀500
y⠀⠀⠀⠀⠀|⠀⠀ ⠀⠀ 11⠀⠀⠀⠀⠀|⠀⠀⠀⠀a
As x directly varies with y:
200 × a = 500 × 11
a = 5/2 × 11 = 27.5
4 Happy Tam cat food can be purchased in four different packages.
Pack 1: 24 x 250 g cans for $39.99
Pack 2: 12 X 300 g cans for $24.99
Pack 3: 9 X 400 g cans for $25.99
Pack 4:6 X 1 kg can for $38.50
Which of the following shows the packs ordered from best to worst buy? Select the correct
answer A, B, C or D.
A 4213
B 3214
C 4123
D 2134
Answer:
C. 4123.
Step-by-step explanation:
We calculate the cost of a gram of cat food for each package.
Pack 1: Cost of 1 gram = total cost / number of grams
= 39.99 / (24 * 250)
= $0.00665 '
Pack 2: The cost is 24.99 / (12 * 300)
= $0.00694.
In a similar way
Pack 3: The cost is $ 0.0722
Pack 4: The cost is $0.00642 .
So the answer is
4123
Which expression is equivalent to 3 times 5 times 5 times 5 times 5 times 5 times 5? 15 Superscript 6 15 Superscript 7 3 (5) Superscript 6 3 (5) Superscript 7
Answer:
3 (5) Superscript 6Step-by-step explanation:
Given the expression [tex]3*5*5*5*5*5*5[/tex]
In order to get the equivalent expression, first we must note the repetition of the value 5. Since the value of 5 is repeated 6 times during the multiplication, it can be written in indicinal form as shown;
[tex]3*5^{6}[/tex]
[tex]5^{6}[/tex] in the equation means that 5 is being repeated 6 times.
The required answer is 3[tex](5)^{6}[/tex]
Answer: its C
Step-by-step explanation:
*EDITED TO SEE BOTH DIAGRAMS* MEANT TO SAY BIOLOGY NOT MATH
In class, Malik and Deniz were learning about evolution. They studied the two diagrams below.
Diagram A shows four animals as embryos: a fish, an amphibian, a bird, and a human. Diagram
B shows these animals as adults.
Molik and Deniz noticed that all four organisms have gill slits in their embryonic stage and made
the following statements
Malik said, "I think all four organisms have a common ancestor because they all share a
common characteristic, gill slits, in the embryonic stage."
Deniz said, "I dont think they all descended from a common ancestor, because when they
are adults, they do not all have gills or share many other similar physical characteristics."
1. Who do you agree with? Include information about the evolution in your response. [3]
Answer:
Deniz, as he would be correct because those images of the embryos were classified as fraud, so Malik's theory could not be true in the first place becuase the images are not based on reality, but the pictures that Deniz are using as the backup for his theory are true so his statement would be true...
idk if your school can take that as an answer but that is the truth, so just in case here is an alternate answer
Deniz because the only time the organisms are similar in appearance is for a short period of time, then they drastically change in appearance, never to share common characteristics again, if they were from the same ancestor they would all have characteristics pointing to each other and there ancestor
Step-by-step explanation:
Answer:
The answer is 1,3,4
Step-by-step explanation:
2
You put $939 into an investment at 8% for six years. What will the balance be at the end of
six years?
You put $939 into an investment at 8% for six years. What will the balance be at the end of
six years?
Answer:
$1490.074.