Answers
Answer:
He has 7 nickels, 14 dimes, and 21 quarters.
Step-by-step explanation:
Let d = number of dimes.
Let n = number of nickels.
Let q = number of quarters.
The value of a dime is $0.10, so d dimes are worth 0.1d
The value of a nickel is $0.05, so n nickles are worth 0.05n
The value of a quarter is $0.25, so q quarters are worth 0.25q
The value of all coins combined is the sum of the values above, and it equals $7.00
0.1d + 0.05n + 0.25q = 7
The number of dimes = 2 times the number of nickels, so
d = 2n
The number of quarters = 3 times the number of nickels, so
q = 3n
Now we substitute 2n for d and 3n for q in our equation above.
0.1d + 0.05n + 0.25q = 7
0.1(2n) + 0.05n + 0.25(3n) = 7
0.2n + 0.05n + 0.75n = 7
n = 7
He has 7 nickels.
d = 2n = 2(7) = 14
He has 14 dimes.
q = 3n = 3(7) = 21
He has 21 quarters.
Answer: He has 7 nickels, 14 dimes, and 21 quarters.
Answer: He has 7 nickels, 14 dimes, and 21 quarters.
Step-by-step explanation:Did this one before and got it right!
Related Questions
ANSWER QUICK PLEASE
64% of what number is 192
Answers
Answer:
300
Step-by-step explanation:
300 times .64 equals 192.
If f(x) = 3x-2 and g(x)= x +1, find (f +g)(x).
Answers
Losers Club units again my pal
Step-by-step explanation:
sosos
help me with this thanks
Answers
Answer:
Volume of composite is 483 [tex]mm^3[/tex]
Step-by-step explanation:
We need to add the volume of a rectangular prism (7 mm x 12 mm x 3 mm) to a semi-cylinder (of radius 3.5 mm and height 12 mm):
Volume of the prism = 7 x 12 x 3 [tex]mm^3[/tex] = 252 [tex]mm^3[/tex]
Volume of the semi-cylinder = [tex]\frac{\pi\,\,R^2\,\,H}{2} = \frac{\pi\,\,(3.5)^2\,\,(12)}{2} =230.907 \,\,mm^3[/tex]
Therefore the sum of both volumes gives:
(252 + 230.907) [tex]mm^3[/tex] = 482.907 [tex]mm^3[/tex]
WHich can be rounded to the nearest whole number as: 483 [tex]mm^3[/tex]
what is the value of the expression
(2/3-5/6) divided by 3/4
Answers
Answer:
Step-by-step explanation:
(2/3) - (5/6) = (-1/6)
(-1/6)/(3/4) = -2/9
The value of the expression is -4/18
What is the BODMAS rule?According to the BODMAS rule, the brackets have to be solved first followed by powers or roots (i.e. of), then Division, Multiplication, Addition, and at the end Subtraction. Solving any expression is considered correct only if the BODMAS rule or the PEMDAS rule is followed to solve it.
Given here, the expression as (2/3-5/6) / 3/4 = 4-5 /6 × 4/3
= -4/18
Hence, the value of the expression is -4/18
Learn more about the BODMAS rule here:
https://brainly.com/question/29795897
#SPJ2
PLEASE HELP IN URGENT NEED
Answers
Answer:
A
Step-by-step explanation:
A number divisible by 9 is also divisible by 3. This is because nine is basically just 3+3+3.
Answer:
the last one
Step-by-step explanation:
i nine is divisible by three and 3 is a factor of 9 the other one is just false
for you to understand- 9
3 3
For example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12.
hurrryy will give brainliest!!
Answers
Answer:
The first option
Step-by-step explanation:
Which describes the correlation shown in the scatterplot?
Answers
Its a for connexus academy grade 8 test
Step-by-step explanation:
It just is
'Do you need to break apart a solid figure in a certain way to find its volume? Use the problem above to explain your reasoning.'
Answers
Answer:
You do in some situations have to break apart a solid figure in a certain way to find it's volume. Everything is made up out of some type of shape. You just have to find the right formula. Some solid figures you might have a cube and a pyramid. Each one of those has it's specail way of finding volume.
Step-by-step explanation:
Help please 10 points!
Answers
Answer:
Step-by-step explanation:
Yes, the two angles are congruent. There are two triangles here, and these triangles are congruent as well.
what is the area of a square figure that has a length of 5 cm?
Answers
Answer:
its 5x5x5
Step-by-step explanation:
125
Answer:
25
Step-by-step explanation: you have to multiply 5 by 5 because a square has equal sides And the you’ll get 25 hope this helps
A square pyramid is placed inside a cube having a volume of 729 in3. The pyramid has the same height as the cube and the base of the pyramid is one face of the cube. Which is the ratio of the volume of the pyramid to the volume of the cube?
a 1/9
b 1/2
c 1/3
d 2/3
Answers
Answer:
1/3
Step-by-step explanation:
pyramid height = cube height , a = h (GIVEN)
[tex]so, v= \frac{1}{3} * a^{2} * h = \frac{1}{3} * a^{3}\\a = \sqrt[3]{3v} = \sqrt[3]{3*729} = 13 in\\\\cube volume = a^{3} = 13^{3} = 2187 in^{3} \\\\ratio = \frac{729}{2187}= \frac{1}{3} (ANS)[/tex]
If EH = 95 and GE = 25, then m
Answers
Answer:
∠ D = 35°
Step-by-step explanation:
∠ D is formed by a tangent and a secant and is one half the difference of the measure of the intercepted arcs, that is
∠ D = 0.5( arc EH - arc GE )
= 0.5(95 - 25)° = 0.5 × 70° = 35°
IM GIVING 20 POINTS. help me please. it would be very helpful
Answers
Answer:
C) 68 cm
Step-by-step explanation:
Egyptian triangle - 3 4 5
85/5 = 17
51/3 = 17
4 times 17 = 68
51 68 85
If the radius of a circle is 16 units, what is its circumference? (Use pie for it)
Answers
Answer: 100.53
Step-by-step explanation:
Circumference = 2 x pi x r
= 2 x 22/7 x 16
C= 100.53
Which could be the entire interval over which the function,
f(x), is positive?
(-♾, 1)
(-2, 1)
(-♾,0)
(1, 4)
Answers
Answer:
(-2,1)
Step-by-step explanation:
The bracket is an opened interval
zero is neutral either positive or Negative
so the range of values in (-2,1) is -1,0 with corresponding values 2 each
hence, they're positive
Answer:
B -2,1
Step-by-step explanation:
What’s the area of the kite? 20 points! <33
Answers
20x50= 1000x1/2x2= 1000
10x20=200x2x1/2=200
1000+200=1200
the area of the kite is 1200 cm
Answer:
1200 cm²
Step-by-step explanation:
[tex]A=pq/2[/tex]
p and q are the diagonals.
[tex]A=(40)(60)/2[/tex]
[tex]A=1200[/tex]
(PLEASE HELP DUE NOW! I DON'T UNDERSTAND!)
Just answer no need to show work! DON'T ANSWER IF YOU DON'T KNOW!
21, 23, 26, 26, 28, 29, 34, 34, 40
BOX AND WHISKER PLOT
Q1:
Q3:
Answers
Answer:
q 1 is 24.5 and q3 is 34
Step-by-step explanation:
bye my luvvv
Question 3: 31
neptune ran 0.06 mile in the morning and 0.45 mile in the afternoon. Did she ran more in the afternoon or morning?
Answers
Answer:
She ran more in the afternoon
Step-by-step explanation:
0.06 is less than 0.45
Answer:
Afternoon
Step-by-step explanation:
0.45 miles is greater than 0.06 miles so Neptune ran more in the afternoon
Please answer CORRECTLY !!!!! WILL MARK BRAINLIEST
Answers
Answer:
g(x)=0.8x+1.6
Step-by-step explanation:
To do this, you need to isolate the variable y, so that when you input x it will immediately return the value of y.
[tex]-4x-6=-5y+2[/tex]
Subtract 2 from both sides:
[tex]-4x-8=-5y[/tex]
Divide both sides by -5:
[tex]y=0.8x+1.6\\\\g(x)=0.8x+1.6[/tex]
Hope this helps!
Answer:
g (x) = 4/5x + 8/5
Step-by-step explanation:
-4x - 6 = -5y + 2
5y = 4x + 8
y = 4/5x + 8/5
If the diameter of a semi circle is 8 inches what is a semi circles radius
Answers
Answer:
r = 4 inches
Step-by-step explanation:
The radius of a circle is 1/2 of the diameter
r = 1/2d
r = 8/2 = 4
Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 594 and a standard deviation of 96. Use the 68-95-99.7 Rule to find the
percentage of people taking the test who score below 306.
The percentage of people taking the test who score below 306 is
%.
Answers
Answer:
0.15%
Step-by-step explanation:
The Empirical Rule ( 68-95-99.7 Rule) states that almost all data falls within 3 standard deviations of the mean for a normal distribution. Under the rule:
68% of the data falls within one standard deviation. 95% percent of the data lies within two standard deviations. 99.7% of data fall within three standard deviationsGiven that:
mean (μ) = 594 and standard deviation σ = 96
68% of the data falls within μ ± σ. That is 594 ± 96. 68% fall within 498 and 69095% percent of the data lies within μ ± 2σ. That is 594 ± 2(96). 95% fall within 402 and 78699.7% percent of the data lies within μ ± 3σ. That is 594 ± 3(96). 99.7% fall within 306 and 882The percentage of people that all fall outside 306 and 882 = 100% - 99.7% = 0.3%. Therefore the percentage of people that are below 306 = 0.3% / 2 = 0.15%
We could also represent this function with an equation, A = #r2. We say that the input of
the function, r, is the independent variable and the output of the function, A, is the
dependent variable. We can choose any value for r, and then the value of A depends on
the value of r. We could also represent this function with a table or as a graph. Depending
on the question we investigate, different representations have different advantages. You
may recognize this rule and know that the area of a circle depends on its radius.
Here is a task to try with your student:
Jada can buy peanuts for $0.20 per ounce and raisins for $0.25 per ounce. She has $12 to
spend on peanuts and raisins to make trail mix for her hiking group.
1. How much would 10 ounces of peanuts and 16 ounces of raisins cost? How much
money would Jada have left? 6
2. Using p for pounds of peanuts and r for pounds of raisins, an equation relating how
much of each they buy for a total of $12 is 0.2p+ 0.25r = 12. If Jada wants 20 ounces
of raisins, how many ounces of peanuts cán she afford? 7
Answers
Answer:
Step-by-step explanation:
solve with explanation -4x+5> - 5
Answers
Answer:
[tex]x < 2.5[/tex]
Step-by-step explanation:
[tex] - 4x + 5 > - 5 \\ - 4x > - 5 - 5 \\ - 4x > - 10 \\ \frac{ - 4x}{ - 4} > \frac{ - 10}{ - 4} \\ x < \frac{5}{2} \\ x < 2.5[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
2 Points
Which term best describes the statement given below?
If p = q and q = r, then p = r.
Answers
Answer: if this is multiple choice It’s
B. A syllogism
Step-by-step explanation:
Brainliest if help! A paint company wants to change the height of its cans of paint to 15 centimeters tall so when the cans sit on a shelf in a store they are more visible to customers. If the volume of the can must remain at 3818 cubic centimeters, what will be the radius of the can?
Answers
Answer:
I think it is 9.00113750385
Step-by-step explanation:
Answer:
9 cm
Step-by-step explanation:
The area of a cylinder is V = πr² * h, where V is the volume, r is the radius of the base and h is the height. We want to solve for r. We know the value of V and h, so let's plug those in. We get 3818 = πr² * 15, and when we divide by 15, we get 254.53 = πr². We can approximate 3.14 for π, and when we do so, we get 254.53 = 3.14r². Dividing by 3.14 gets us 81.02 = r², and when we take the square root of the equation, we get r≈9 cm. Hope this helps!
You have been asked to set up chairs for the school concert.
The first row will have 10 seats, and each additional row has 4
seats more than the previous row. /(10 pts)
What is the total number of chairs needed to set up 25 rows?
Answers
Step-by-step explanation:
middle section= 390
sides=270
total=930 chairs
what is the measure of the missing angle
Answers
Answer:
42°
Step-by-step explanation:
We can see that in one leg of the right triangle we already have a 132 degree obtuse angle given. And since a line is 180 degrees, we can see that the inner acute angle of the right triangle is 180 - 132 = 48 degrees.
And since 3 angles of a triangle adds up to become 180, we can use standard algebra to find: 180 - 90 - 48 = 42 degrees.
If 30 people claimed that they get an average of seven hours of sleep, how many people were in the group? [Type your
answer as a number.]
Hours of Sleep
Seven
25%
Six or Less
10%
Eight
50%
Nine or more
15%
Answers
Answer:
The answer is 120 , as the 25 % of people are getting seven hour sleep and they are 30 in number . As 25% of 120 is 30 , the answer is 30
I hope it helps
Answer:
The answer is 120
Use the laws of exponents to express 9-3/2 · 82/3 as a simple fraction. Show the steps in the simplification
Answers
Answer:
4/27
Step-by-step explanation:
The laws of exponent are used for the simplification of expressions with exponential powers. Considering the given expression, the applicable laws of exponents are
a^-x = (1/a)^x
and
a^(x/b) = b√a^x
Hence
9-3/2 · 82/3
= (1/9)^3/2 . 8^2/3
= √(1/9)³ . ∛8²
= (1/3)³ . 2²
= 1/27 . 4
= 4/27
Each side of this figure is the same length.
How many lines of symmetry does this figure have?
Answers
Answer:
it has 3
Step-by-step explanation:
Answer: 5 is the answer