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Mathematics

2 answers:

sweet-ann [11.9K]3 years ago

3 0

Step-by-step explanation:

The answer is 33 because

If Mathew is 13 then twice is 13 x 2 = 26

Then 7 years older so 26 + 7 = 33

vekshin13 years ago

3 0

Answer:

I think the answer is A.

Step-by-step explanation:

I would write the equation using x as Mathew's sisters age so his sister's age is 2x + 7 = 13 and then solve for x. Subtract 7 from both sides which leaves

2x = 6, divide both sides by 2 which is 3. Hope that helps.

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One of the same-side exterior angles formed by two lines and a transversal is equal to 1/6 of the right angle and is 11 times sm

sergey [27]

One of the same-side exterior angles formed by two lines and a transversal is equal to 1/6 of the right angle and is 11 times smaller than the other angle. Then the lines are parallel

<h3><u>Solution:</u></h3>

Given that, One of the same-side exterior angles formed by two lines and a transversal is equal to 1/6 of the right angle and is 11 times smaller than the other angle.

We have to prove that the lines are parallel.

If they are parallel, sum of the described angles should be equal to 180 as they are same side exterior angles.

Now, the 1st angle will be 1/6 of right angle is given as:

$\begin{array}{l}{\rightarrow 1^{\text {st }} \text { angle }=\frac{1}{6} \times 90} \\\\ {\rightarrow 1^{\text {st }} \text { angle }=15 \text { degrees }}\end{array}$