1,000 pennies.
If it was 7/10 full then after she removed 200 pennies it was 5/10 full. (5/10 = 1/2) 
Therefore 2/10 is equal to 200 pennies. (7/10 - 5/10 = 2/10) 
If 2/10 is 200 then 10/10 is 1000 pennies.

6 0

3 years ago

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Explain why 6^3x7^3=42^3 is correct.

Orlov [11]

Answer:

${6}^{3} \times {7}^{3} = {(6 \times 7)}^{3} = {42}^{3}$

Step-by-step explanation:

When two or more quantities have the same exponents, their bases can be multiplied together.

4 0

3 years ago

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If angle H equals 90 degrees, line GJ is ______ GH.

dmitriy555 [2]

Answer:

Step-by-step explanation:

3 0

3 years ago

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