What's the answer and how do I work the problem out?!!
1 answer:
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1) Division Property Equality
first pass: Simplify by 8
second pass: <span>Now divide the equals
</span>
2) Addition Property of Equality
first pass: <span>Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
</span>
second pass: Do the addition
<span>
3) Subtraction </span>Property of Equality
first pass: Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
second pass: Do the subtraction
<span>
4) Multiplication Property of Equality
</span>
first pass: <span>Multiply the equalities by the inverse of the incognito, without the incognito
</span>
second pass: <span>Cancel the same terms and divide the ratio.
</span>
5) Distributive Property
<span>first pass: We only evaluate what is in the parentheses first and then we solve it.
</span>
second pass: we just evaluate what’s in the parentheses first, then solve it. We have a distributive property, with the distributive property, we multiply the '7' first.
Obs: <span>This question is not to find the value, only to show the distributive property.
</span>
<span>For better understanding and solve your question with equation with incognito, after the distributive property, equalize the terms to zero, then isolate the terms, putting numbers with incognito on the left and numbers without incognito on the right, changing the signal as they change sides. And then solve by finding the value of the incognito dividing the terms.
</span>
<span>
</span>
first pass: Simplify by 8
second pass: <span>Now divide the equals
</span>
2) Addition Property of Equality
first pass: <span>Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
</span>
second pass: Do the addition
<span>
3) Subtraction </span>Property of Equality
first pass: Incognito on the left and numbers without incognito on the right, changing signs if they change sides.
second pass: Do the subtraction
<span>
4) Multiplication Property of Equality
</span>
first pass: <span>Multiply the equalities by the inverse of the incognito, without the incognito
</span>
second pass: <span>Cancel the same terms and divide the ratio.
</span>
5) Distributive Property
<span>first pass: We only evaluate what is in the parentheses first and then we solve it.
</span>
second pass: we just evaluate what’s in the parentheses first, then solve it. We have a distributive property, with the distributive property, we multiply the '7' first.
Obs: <span>This question is not to find the value, only to show the distributive property.
</span>
<span>For better understanding and solve your question with equation with incognito, after the distributive property, equalize the terms to zero, then isolate the terms, putting numbers with incognito on the left and numbers without incognito on the right, changing the signal as they change sides. And then solve by finding the value of the incognito dividing the terms.
</span>
<span>
</span>
Answer
Step by Step Explanation
1) Due to the Centroids Theorem we can say that:
AP=2/3AE
AP=2/3*21
∴AP=14
2) Finally, AE =AP+AE
21=14+7 ⇒21=21 True
AP =2PE verifies the Theorem too.
So, the size is 14 .
