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3 years ago

22 + Ча= За –13 Solve for a

Mathematics

2 answers:

romanna [79]3 years ago

3 0

Answer:

mark as brainliest!!!!!!

Step-by-step explanation:

22+13=-4a+3a

35= -a is ur answer

sukhopar [10]3 years ago

3 0

Answer:

-35

Step-by-step explanation:

Adding 13 to both sides, you get:

35+4a= 3a

Then, you can subtract 4a from both sides to get:

35=-a

Finally, you need to multiply both sides by -1:

a=-35

Hope this helps!

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Answer:

1. 1800 square cm.

2. See below

3. 45000 square cm.

Explanation:

Part 1

The dimensions of the drawing are 36cm by 50cm.

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Given a scale factor, k

If the area of the scale drawing is A; then we can find the area of the actual board by multiplying the area of the scale drawing by the square of k.

Part 3

$\begin{gathered} \text{Area of the scale drawing}=1800\operatorname{cm}^2 \\ \text{Scale Factor,k=5} \end{gathered}$

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$\begin{gathered} 1800\times5^2 \\ =45,000\operatorname{cm}^2 \end{gathered}$

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3 years ago

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Mai biked 5 1/4 miles today, and Noah biked 2 1/2 miles. How many times the length of Noah’s bike ride was Mai’s bike ride?

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Answer:

The length of Mai's bike ride was 2.1 times the length of Noah's ride.

Step-by-step explanation:

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We divide the Mai distance by Noah's distance. In a division of fractions, we multiply the numerator by the inverse of the denominator. So

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The length of Mai's bike ride was 2.1 times the length of Noah's ride.

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