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mr_godi [17]
2 years ago
7

Please help me with this problem

Mathematics
1 answer:
Norma-Jean [14]2 years ago
3 0

Answer:

Answer is 544

Hope it helps you

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If you have 20 coins worth $1.35, and you only have nickels and dimes, how many do you have of each coin?
ankoles [38]
N + d = 20....n = 20 - d
0.05n + 0.10d = 1.35

0.05(20 - d) + 0.10n = 1.35
1 - 0.05d + 0.10d = 1.35
-0.05d + 0.10d = 1.35 - 1
0.05d = 0.35
d = 0.35/0.05
d = 7 <==== 7 dimes

n + d = 20
n + 7 = 20
n = 20 - 7
n = 13 <=== 13 nickels
5 0
3 years ago
Equivalent ratio for 10/24<br><br><br> PLEASE NOW HURRY
Luden [163]

Step-by-step explanation:

fraction 10/24

you want the ratio

answer is 5:12

if you want the explanation look below

Step One: Reduce the fraction

10/24

=

5/12

Step Two: Rewrite as a ratio

5/12 = 5 : 12

6 0
3 years ago
Read 2 more answers
What is the coefficient in this equation 3x +9= -15
VLD [36.1K]

Answer:

3

Step-by-step explanation:

The coefficient is the number before the variable so 3 would be the coefficient in this equation.

Hope this helps!!!

6 0
3 years ago
Now solve the equation 4(x+3)=8. Remember to: Build the equation on your Equation Mat with algebra tiles. Simplify the equation
Ymorist [56]

Answer:

x=-1

Step-by-step explanation:

4(x+3)=8

4x+12=8

4x=-4

x=-1

3 0
3 years ago
Gary invested $1,000 into an account earning interest at an annual rate of 5% compounded annually. Each year, he deposited an ad
coldgirl [10]
This one is too complicated for me
6 0
3 years ago
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