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3 years ago

MATH HELP ASAP PLEASE

Mathematics

1 answer:

Nataly [62]3 years ago

5 0

Answer:

53lbs

Step-by-step explanation:

if he bought three bags of gravel that are 20 lbs. each then he would have 60 lbs. of gravel. In the end he only had 7 pounds left so you would subtract 7 from 60 and get 53 pounds.

7+x=60 or 60-7=53

i hope this helped!

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Step-by-step explanation:

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3 years ago

The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim

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Answer:

≈ 1833

Step-by-step explanation:

To find ratio of proton mass to electron mass, we have to divide.

The numbers are given in <em>scientific notation</em>.

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3 years ago

Read 2 more answers

11. What is the perimeter of the garden?

Ilya [14]

Answer:

19 $\frac{1}{4}$ or 18 $\frac{5}{4}$

Step-by-step explanation:

First, add the whole numbers

3, 7, and 8

Add the fractions

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IF YOU WANT SIMPLIFIED NUMBER DO THIS

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3 years ago

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Answer:

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Step-by-step explanation:

Area= Length × Breadth

=137cm × 65cm

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3 years ago