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TiliK225 [7]
3 years ago
12

If m∠A = m∠B and m∠A + m∠C = ∠D, then

Mathematics
2 answers:
umka2103 [35]3 years ago
7 0

Answer:

Substitution Property

Step-by-step explanation:

The change from the first equation to the final equation is m∠A has been replaced by m∠B. In other words, m∠B was substituted for m∠A.

puteri [66]3 years ago
4 0

Answer:

substitution property

Step-by-step explanation:

Just took the test on edge.

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The sum of 7 and 2 is 8
BabaBlast [244]

Answer:

We can introduce a variable ( a letter representing an unknown ) to help us solve this question.

Let χ = "a number..."

We can rewrite the sentence in the following way:

7( χ + 2 ) = 8

To solve for χ , we can first distribute 7:

7 ∗ χ + 7∗(2) = 8

7χ + 14 = 8 ⇐ since 7 times 2 is 14

Let's get χ by itself first. We do so by subtracting 14 from both sides of the equation:

7χ + 14 - 14 = 8 - 14

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7χ = -6 ⇐

The last number in our way is that 7. Let's divide both sides by 7 ( which is the same as multiplying both sides by 1 / 7 ) to figure out what χ is:

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χ ∗ ( 1 ) = - 6 / 7 ⇐

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Therefore ( we can also use ∴ to represent the word "therefore" ) our number in question is  -6 / 7

Step-by-step explanation:

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A shop in the mall is 8 meters by 11 meters. How much would it cost to recarpet the shop with carpet that costs $5.00 per square
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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5 0
4 years ago
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