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Marta_Voda [28]
2 years ago
8

A person has a bag containing quarters and dimes. There are a total of 61 coins in the bag, and the total value of the coins is

$10.45.
Mathematics
1 answer:
77julia77 [94]2 years ago
6 0

Answer:

Q+D = 65, multiply both sides by 2525Q + 25D = 162525Q + 10D = 950  subtract to get            15D = 675               D = 675/15 = 135/3 = 45 dimes               Q = 65-45 = 20 quarters25(20) + 10(45) = 500+450 = 950

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3y-3.5/3y+6=17/25.5. find the value of y. give the scale factor of the polygon
Mekhanik [1.2K]

Hi the answer to your question is

 

((3y - 3.5) / (3y + 6)) * 25.5 = (17 / 25.5) * 25.5

((3y - 3.5) / (3y + 6)) * 25.5 = 17 (76.5y - 89.25) / (3y + 6) = 17

((76.5y - 89.25) / (3y + 6)) * (3y + 6) = 17 * (3y + 6) 76.5y - 89.25 = 51y + 102 76.5y - 51y = 102 + 89.25

25.5y = 191.25

y = 191.25 / 25.5

<span>y = 7.5</span>

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3 years ago
How can I learn to round better in math
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I have always followed an easy rule: "five or more raises the score". What it means is if the number is 5 or more, it goes to the next whole. Make sense?
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3 years ago
Read 2 more answers
What is the value of x in the equation 5(2x - 7) = 15x -10
ASHA 777 [7]
10x - 35 = 15x - 10
-35 = 5x -10
-25 = 5x
-5 = x
The value of x is -5.
3 0
4 years ago
PLEASE URGENTLY ANSWER THESE 2 QUESTIONS, I WILL PROVIDE MORE POINTS AND CROWN YOU BRAINLIEST IF YOU DO!!!
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Answer:

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3 years ago
Our pool is twice as long as it is wide and is surrounded by a walkway of uniform width of 1 foot. The
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Step-by-step explanation:

x=width of pool

2x=length of pool

the dimensions of the rectangle forming the walkway and the pool are x+4 and 2x+4

the area of this rectangle minus the area of the pool is 196 square feet

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2x^2+4x+8x+16-2x^2=196

combine similar terms

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646-450=196

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8 0
3 years ago
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