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stellarik [79]
3 years ago
12

Explain how modeling partial products can be used to find the products of greater numbers ?

Mathematics
1 answer:
liq [111]3 years ago
3 0

You can break large numbers into a sum of a multiple(s) of 10 and the last digit of the number. For example, you can break 26 as 20+6, or 157 as 100+50+7.

Then, using the distributive property, you can turn the original multiplication into a sum of easier multiplications. For example, suppose we want to multiply 26 and 37. This is quite challenging to do in your mind, but you can break the numbers as we said above:

26\times 37=(20+6)(30+7) = 20\times 30+20\times 7+30\times 6+6\times 7

All these multiplications are rather easy, because they either involve multiples of 10 of single-digit numbers:

20\times 30+20\times 7+30\times 6+6\times 7 = 600+140+180+42=962

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I need help solving 7-3x=x-2(2+x)
mrs_skeptik [129]

Answer:

x = 5.5

Step-by-step explanation:

First, you need to distribute the -2:

-2(2+x) = -2x-4

Next you simplify:

x-2x = -x

Then you get all the x values on one side of the equation and everything else on the other side:

7-3x = -x-4   -->   11 = 2x

Finally, you isolate the x by dividing:

2x = 11   -->   x = 5.5

4 0
3 years ago
How do I get the answer to this step by step?
AURORKA [14]

Answer:

Step-by-step explanation:

The exterior angle is 151 degrees. The theorem states that the sum of its 2 remote interior angles, 5x+3 and 9x-20, will add up to this exterior angle. Therefore,

5x+3+9x-20 = 151 and

14x - 17 = 151 and

14x = 151 + 17

14x = 168 so

x = 12

If you want to find out the measure of each of these angles, just plug in 12 for x and do the math:

5(12) + 3 = 63 and

9(12) - 20 = 88 and

88 + 63 = 151 as it should.

5 0
2 years ago
Rewrite 24 + 48 using GCF and the distributive property.
Nutka1998 [239]
The correct answer is B
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3 years ago
Micah and Lucy are in the school play.
Serga [27]

Answer:

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Step-by-step explanation:

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I don't know what -9/32 is
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Answer:

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Step-by-step explanation:

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