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Ivahew [28]
2 years ago
13

Determine whether each expression was simplified correctly.​

Mathematics
1 answer:
astra-53 [7]2 years ago
3 0

Answer:

Only b is correctly simplified.

Step-by-step explanation:

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What is 60= 3/4h i am doing BIM (Big ideas math online) i need help plz
crimeas [40]

<u>Answer: </u><em><u>h=80 is the final answer. *The answer must be have a positive sign.*</u></em>

Explanation:

<em><u>Switch sides of an equation.</u></em>

<em><u>3/4h=60</u></em>

<em><u>multiply by 4 both sides of an equation.</u></em>

<em><u>4*3/4h=60*4</u></em>

<em><u>simplify.</u></em>

<em><u>3h=240</u></em>

<em><u>divide by 3 both sides of an equation.</u></em>

<em><u>3h/3=240/3</u></em>

<em><u>simplify.</u></em>

<em><u>240/3=80</u></em>

<em><u>80*3=240</u></em>

<em><u>3*80=240</u></em>

<em><u>240/80=3</u></em>

<em><u>h=80</u></em>

<em><u>Hope this helps!</u></em>

<em><u>Thanks!</u></em>

<em><u>Have a great day!</u></em>

5 0
3 years ago
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three postal workers can sort a stack of mail in 30 minutes, 30 minutes, and 60 minutes, respectively. find how long it takes th
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Answer:

it will take about 1/3 of the time (10 minutes)

Step-by-step explanation:

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I need to know then measurement of c
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Peggy had three times as many quarters as nickels. She had $1.60 in all. How many nickels and how many quarters did she have?. .
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Let

n-------> the number of nickels

q------> the number of quarters

we know that

1\ quarter=\$0.25\\1\ nickel=\$0.05

so

0.05n+0.25q=1.60 ----> equation A

q=3n ----> equation B

substitute equation B in equation A

0.05n+0.25[3n]=1.60

0.05n+0.75n=1.60

0.80n=1.60

n=2

Find the value of q

q=3*2=6

therefore

<u>The answer part a) is</u>

the number of nickels are  2  and the number of quarters are 6

<u>the answer Part b) is</u>

The expressions that represents the number of quarters is

q=3n


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