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expeople1 [14]
3 years ago
12

Greg has 60 building blocks. His sister gives him 17 more blocks. He uses 38 blocks to make a tower. How many blacks are not use

d in the tower?
Mathematics
1 answer:
kykrilka [37]3 years ago
8 0

Answer:

Greg has 39 remaining blocks that are not used in the tower.

Step-by-step explanation:

According to the question, Greg started with 60 building blocks.  However, his sister gives him 17 more blocks.  The key word 'more' means we need to add these blocks to the original 60:  60 + 17 = 77.  Greg then decides to use 38 blocks to make a tower.  Since he is using these blocks from his total of 77, we need to subtract this number to see how many he has left:  77 - 38 = 39.  This means that Greg has 39 blocks left that were not used to build his tower.  

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A machine can make 56 parts in 4 hours.It can also make 70 parts in 5 hours. Write an equation that relates the number of parts
ira [324]

Answer:

126 parts in 9 and a half hours

Step-by-step explanation:

56 parts in 4 hours

that means 56 parts in 240 mins

9 hours and 30 minutes in minutes is 570 minutes

56m parts:240 mins

                 540 mins

to get to 540 from 240, you multiply by 2.25.

you can work this out by doing 540 divided by 240

now, multiply 56 by 2.25.

the answer is 126 parts

5 0
3 years ago
Find all of the zeros
noname [10]

Answer:

{-3, -1, 1}

Step-by-step explanation:

Zeros refer to x-intercepts. X-intercepts are x values when y = 0. You can tell where they are by looking at where the line passes the x-axis.

Therefore, {-3, -1, 1} are the zeros.

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3 years ago
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Mars2501 [29]

Answer:

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Step-by-step explanation:

Sorry about not answering your question sooner, but here is your answer:

In order to get the answer, we have to subtract the original amount of money on the phone card by the amount left ver after the call:

15 - 6.72 = 8.28

Then, we divide this number by 0.18:

8.28 / 0.18 = 46

So, Tammy's call lasted 46 minutes

Hope this helps :)

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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