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Tema [17]
3 years ago
14

You have quarters and dimes that total $2.80. Your friend says it is possible that the number of quarters is 8 more than the num

ber of dimes. Is your friend correct? Explain. Let d represent the number of dimes.
Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer:

No.

Step-by-step explanation:

Let d represent the number of dimes. Then the number of quarters (according to the friend) is d+8. The total value is

... 10d +25(d+8) = 280 . . . . in cents

... 35d + 200 = 280 . . . . . . eliminate parentheses

... 35d = 80 . . . . . . . . . . . . . subtract 200

... d = 80/35 = 16/7 = 2 1/7 . . . . . not a realistic number of coins

_____

The difference between the number of quarters and the number of dimes may be any multiple of 7.

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Please answer ASAP! An explanation is a MUST REQUIREMENT in order to receive points and the Brainliest answer. Thank you.
Advocard [28]
Hmm

tr some
m=3
n=4
p=5
q=6
A=m/q=3/6=1/2=0.5
B=n/p=4/5=0.8

test
first,
A+B, andB is irrational
hmm, B is not irrational and the result is not irrational

2nd
0.5+0.8=1.3, it is rational

3rd the fraction is wrong
m/q times n/p=(mn)/(qp) so this is wrong

4th, fraction is also wrong (but it is true that produce of 2 rationals makes rational)

pick 2nd from top
7 0
3 years ago
Share 3200 ml of water in the ratio 4:1:3​
Amiraneli [1.4K]

Answer:

1600 ml, 400 ml, 1200 ml

Step-by-step explanation:

Given ratios are: 4:1:3

Let the shares of the given ratios be 4x, x, 3x

\therefore \: 4x + x + 3x = 3200 \\  \\  \therefore \: 8x = 3200 \\  \\  \therefore \: x= \frac{ 3200}{8} \\  \\ \therefore \: x=400 \\  \\  \implies \\ 4x = 4 \times 400 = 1600 \\  \\ 3x = 3 \times 400 = 1200 \\  \\

8 0
3 years ago
Does anyone know evaluate version
exis [7]

Answer: 6

Step-by-step explanation:

6x6x6 =216

4 0
2 years ago
Help!Write the equation in slope- intercept form of the line that passes through (−1, 11) and is parallel to the graph of y = −8
love history [14]

Answer:

y = -8x + 3

Step-by-step explanation:

plug in the point and the slope into the slope intercept formula (y=mx+b)

the slope will be the same since you want the line to be parallel

11 = -8(-1) +b   now solve for b

11 = 8 + b

-8   -8

3 = b

now write the equation with only the slope and the y intercept

y = -8x + 3

6 0
3 years ago
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noname [10]

Answer:

6,000,000.005

Step-by-step explanation:

The correct answer in [standard form] is  6,500,000

one million= 1,000,000

six million= 6,000,000

one thousandth= .001

five thousandth= .005

6,000,000.005

Word Form: Six million and five thousandth

5 0
3 years ago
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