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Marizza181 [45]
3 years ago
7

1 2 TIME REMAIN 50:24 How could Theo check his work? Check all that apply. Theo solved n + 5 = 11 for the unknown. The steps he

took are shown. He started with 5 tiles. He could substitute 5 forn in the original equation and add. He could substitute 6 for n in the original equation and add. Then he added tiles as he counted up to 11. He could subtract 5 from 11 and check that the answer is 6. He realized he added 6 more tiles to his original 5 to make 11. So he found the unknown to be 6. He could subtract 11 from 5 and check that the answer is 6. O He could put all the tiles in 1 pile to count them to see if there are 11 in all.​
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

so first you do the work than check

Step-by-step explanation:

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mojhsa [17]
Send me your email I will send the working.

The answers:
x = 1
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3 years ago
Four gallons of gasoline cost $16.80. What is the price per gallon (also known as the slope of the line)?
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In AABC, AB = 2 and AC = 11. Find m2C to the nearest degree.<br>help please​
AlexFokin [52]

Answer:

10

Step-by-step explanation:

<h3>Calculating BC</h3><h3>BC = √2^2 + 11^2 </h3><h3>BC = √ 4+121</h3><h3>BC = √ 125 = 11.18</h3>

to find measure of angle C use sinerule

<h3>sinC/C = sinA/A</h3><h3>sinC/2= Sin90/11.18</h3><h3>SinC = 2×1/11.18</h3>

<h3>sinC = 2/11.18</h3><h3>sinC = (0.1788)</h3><h3>C = sin^-1(0.1788)</h3>

<h3>C = 10.305</h3><h3>C = 10 (approximately)</h3>
4 0
2 years ago
Solve for m:<br> 2 (m + 7) = -4- m<br> Your answer
Leokris [45]

Answer:

m = -6

Step-by-step explanation:

2 (m + 7) = -4 - m

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Hopefully this helps!

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8 0
3 years ago
Read 2 more answers
The perimeter of a regulation singles tennis court is 210 feet and the length is 57 feet less than five times the width.
Marianna [84]

Answer:

Length = 24 and Width = 81

Step-by-step explanation:

Let Width be W

then Length = W-57

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=2 (W-57+W)= 210

4W- 114= 210

4W= 324

W= 81

Then Length = 81-57 = 24

4 0
3 years ago
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