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sergij07 [2.7K]
3 years ago
14

Give one example of when would use the friendly numbers strategy to substract. Explain why

Mathematics
1 answer:
Andrei [34K]3 years ago
6 0
Here is one example of when you would use the friendly number strategy to subtract.
42 - 18

We will turn the 18 into a friendly number, which is going to be 20. 

(42 + 2) - (18 + 3)
44 - 20
Now it is easier to subtract 44 - 20 than it is 42 -18. With 42 - 18 we would have to barrow whereas with 44 -20 we do not have to barrow and we can do it in our head easier and makes it faster.
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mars1129 [50]

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12 and 36 and 13

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3 years ago
Please help with photo below
gavmur [86]

Answer:

No

Step-by-step explanation:

like terms are terms which have the same variable , that is

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6 0
1 year ago
Does anyone have any Idea how to solve this?
Mariulka [41]

Answer:

x = 12

Step-by-step explanation:

Remark

These two angles are corresponding angles and as such, they are equal.

Equation

8x+ 36 = 5x + 72

Solution

Subtract 5x from both sides

8x - 5x + 36 = 5x - 5x + 72          Combine like terms.

3x + 36 = 72                                 Subtract 36 from both sides

3x + 36 - 36 = 72 - 36                  Collect like terms

3x = 36                                          Divide by 3

3x/3 = 36/3                                   Divide

x = 12                                             Answer

6 0
3 years ago
Please show work and help me please
Gnesinka [82]

Answer:

31.4 in

Step-by-step explanation:

the formula for circumference is 2*\pi*radius. Since the diameter (which is the radius multiplied by 2) is labeled we can divide 10 by 2 to get the radius. 10/2 is 5. Since pi is an infinite number, we round it to 3.14. Then, plug in the numbers. The expression will be 2*3.14*5. 2* = 10 and 10 * 3.14 you can just move the decimal so the answer is 31.4.

6 0
3 years ago
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