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4 years ago

Mr Barton was answering the problem below the question

Mathematics

1 answer:

polet [3.4K]4 years ago

4 0

No the student is incorrect the answer is actually 332

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PLSSSSS HELP!!!!!!!!!

Anna11 [10]

Answer:

x=30º

∠CAB=60°

∠ACB=80°

Step-by-step explanation:

Because the angles of every triangle add up to 180º, we know that:

$2x+20+2x=180-40\\ 4x=180-40-20\\ 4x=180-60\\ 4x=120\\ x=\frac{120}{4}$

x=30º

Plug that in for x on both angles, and you will get

∠CAB=60°

∠ACB=80°

6 0

3 years ago

Pls help I’ll brainlest grades close today

exis [7]

Answer:

12.5%

Step-by-step explanation:

[First Value – Second Value] ÷ [(First Value + Second Value) ÷ 2] × 100

[50 - 30] ÷ [ 50 + 30] ÷ 2 × 100

20 ÷ 80 ÷ 2 × 100

0.25 ÷ 2 × 100

0.125 × 100

12.5 %

8 0

4 years ago

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Please help

nika2105 [10]

Answer:parallelogram

Step-by-step explanation: If one pair of opposite sides of a quadrilateral are equal and parallel, then the quadrilateral is a parallelogram

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3 years ago

Find and interpret the mean absolute deviation of the data. Round your answer to the nearest tenth, if necessary. The mean absol

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Answer list the data sets

Step-by-step explanation:

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3 years ago

What percent of 210 is 70?

Diano4ka-milaya [45]

If we take 210 to be the 100%, what is 70 off of it in percentage then?

$\bf \begin{array}{ccllll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
210&100\\
70&x
\end{array}\implies \cfrac{210}{70}=\cfrac{100}{x}\implies x=\cfrac{70\cdot 100}{210}$

6 0

3 years ago

Read 2 more answers