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dangina [55]
3 years ago
13

I really don’t understand questions 3,4,6,7 could you please please help! i don’t need #5. If you can please explain your work.

so if you can only explain 1 with work that’s better than just answers!
thanks so much!!!!

Mathematics
1 answer:
Lapatulllka [165]3 years ago
7 0
#5
5(p+6)=8p
5p+30=8p
8p-5p=30
3p=30
30/3
p= 10 is your answer
#4
3(g+7)=2(10+g)
3g-21=20+2g
3g-2g
g-21=20
20+21
g=41 is your answer
#6
3/7 w -11= -4/7 w
3/7w=-4/7 + 11
3/7 w = 73/7 x 7
3w = 511/7
3w= 73
w= 73/7 is your answer
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<em>Additional comment</em>

The second attachment shows the relationship between place values and their multiplier in scientific notation.

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The choice of exponent when computing the sum or difference of numbers in scientific notation is usefully informed by an estimate of the value of the sum or difference. A proper choice can avoid the need to adjust the exponent of the result of the operation. Here, we see the subtraction will change the larger value by less than 10%, so the exponent of the result in scientific notation will be that of the larger value (-2).

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3 years ago
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