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3 years ago

Joe has $6.40 in nickels and quarters. He has two more nickels than quarters. How many quarters does Joe have?

Mathematics

2 answers:

ikadub [295]3 years ago

6 0

Answer:

Quaters - Q=12

Dimes - D=10

Nickels - N= 48

Step-by-step explanation:

First, notice that $6.40 = 640 cents. The corresponding linear equation and a solution is shown below in several steps:

Original equation for amount of Dimes (D):

10*D + 25*(D+2) +5*4*(D+2) = 640

Simplified as following, resulting in the answer for D:

55*D=550

D=10

thus having the amount of Quarters:

Q=12

and correspondingly, amount of Nickels:

N= 48

liraira [26]3 years ago

5 0

Answer:

Quarters = 12

And correspondingly, amount of Nickels:

Nickels = 48

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3 years ago

Read 2 more answers

a number is multiplied by 8 and that product is added to 2. The sum is equal to the product of 2 and 25 . Find the number

pickupchik [31]

Answer:

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$8x+2$

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Kevin invested $8,000 for one year at a simple annual interest rate of 6 percent and invested $10,000 for one year at an annual

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