In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar?

Answers

Answer 1

Answer: 6 Dimes because if you have 6 dimes that is .60 cents then add 12 nickels that is another .60 cents so then its $1.20 :)

Answer 2

Answer:

Answer:

40 dimes

Step-by-step explanation:

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100 points: Sketch a graph of y = 1x| Then sketch a graph of y = -x + 4 on the same coordinate plane. If you can change colors of your graph, make this one red. In the box below, describe the transformation that took place from y=[xl to y = -1x + 4|

Answers

Answer:

i cant like give you the answer off the top of my head but when i did this the video helped me a lot

Step-by-step explanation:

its How to Graph the line y = x by Cowan Academy

Solve for p if 2|p| = 4

Answers

2p = 4
p = 2

-2p = 4
p = -2

answer p = -2 and p =2

= 7p + 2 <---- distributed the 2 to "p" and to "4" -7p . i think good luck

David wants to hang a mirror in his room. The mirror and frame must have an area of 8 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?Square with an inner frame with height of 2ft on the left frame and width of 3ft on the top. Arrow on the bottom frame with an x and an arrow on the right frame with an x.

2x2 + 14x − 2 = 0
3x2 + 10x − 8 = 0
4x2 + 10x − 2 = 0
x2 + 7x − 8 = 0

Answers

Represent the thickness of the frame by x. Framing the mirror will increase both its length and width by 2x. The area of the mirror with the frame is the product of the length and width which can mathematically be expressed as,

A = (3 + 2x)(2 +2x) = 8

The equation above can be simplified into 4x^2 + 10x -2 = 0. This equation can still be further simplified by dividing it by 2. However, it will give an answer which is not found on the choices. Thus, the answer is the third choice.

Answer:

The answer above is correct i took the test

Step-by-step explanation:

The art museum had a total of 224 visitors on Tuesday. Visitors older than 18 paid $12 for admission. Visitors 18 years or younger paid $8 for admission. The museum collected a total of $2,520. How many visitors were 18 or younger?

Answers

Given:
total of 224 visitors
older than 18 paid $12
18 and below paid $8
total collection 2,520

Let l be visitors older than 18 and m be visitors 18 and below.

l + m = 224
12l + 8m = 2,520

l = 224 - m
12(224 - m) + 8m = 2520
2688 - 12m + 8m = 2520
-4m = 2520 - 2688
-4m = -168
m = -168/-4
m = 42 number of visitors 18 and below.

l = 224 - m
l = 224 - 42
l = 182 number of visitors older than 18.

12(182) + 8(42) = 2520
2184 + 336 = 2520
2520 = 2520

"42". I just took the test.

????? Anyone know the answer

Answers

Answer:

the slope is 3 because y=mx+b where m= slope and b= y-intercept

Step-by-step explanation:

26. A public park is in the shape of a triangle. The side of the park that forms the base of the triangle is 2000 yards long, and the area of the park is 7500 yards2 . What is the length of the side of the park that forms the height of the triangle?

Answers

Answer:

7.5 yards

Step-by-step explanation:

Since the area of a triangle is found by the equation: $(bh )/(2)$ , in which b=base h=height, and $bh$ is base times height, we can work backward from the value of the area to find the height of the park

Start by multiplying 7500 by 2. From this, you get 15000.

Now for the second step, you have to divide 15000 by 2000 in order to determine the height of the triangle. this value comes out to 7.5.

This means that the values of the equation are b=2000 and h=7.5 $(2000(7.5))/(2)$

To double-check, we multiply 2000 by 7.5. and divide that value by 2. This gives us the original area of 7500

This means that the height of the park is 7.5 yards

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