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ICE Princess25 [194]
3 years ago
5

PLEASE HELP 10 POINTS

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0

Answer:

40

Step-by-step explanation:

180 degrees for a triangle. We add 87 and 53 degrees.

That equals 140. Again, back to 180 degrees. We minus 180 degrees with 140 degrees which equals:

40 degrees.

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Nolan is using substitution to determine if 23 is a solution to the equation. Complete the statements.
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Answer:

Step-by-step explanation:

Given the equation j – 16 = 7, If Nolan is using substitution to determine if 23 is a solution to the equation, then Nolan need to make j the subject of the formula from the equation. The following statements must therefore be made by Nolan.

First, Nolan must substitute for the value of j in the equation.

To simplify, Nolan must subtract the value of  7 from both sides to have;

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Then Nolan must add 23 to both sides of the equation to get the value of j as shown;

j – 23 + 23 = 0+23

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1. write an equvialent expression: -1/2 (-2x + 4y)
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Step-by-step explanation:

I've answered this question already.

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May someone please help me with this?
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