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3 years ago

In ▵PQR, PR is extended through point R to point S, m

Mathematics

1 answer:

alexgriva [62]3 years ago

8 0

Answer:

x = 10

Step-by-step explanation:

Here, we are tasked with calculating the value of x.

To do this, we need the picture of the wordings given in the question.

please check the attachment for a pictorial representation.

Now the theorem to use is that , the exterior angle of a triangle is equals the sum of the two opposite interior angle.

Thus, mathematically;

3x + 11 + 3x + 15 = 10x -14

6x + 26 = 10x -14

10x-6x = 26 + 14

4x = 40

x = 40/4

x = 10

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What strategy can be used to solve 8 x 25 x 23

wariber [46]

The best way to multiply complicated problems mentally* is to break them into chunks.

Start with 20 times 8 to get 160, and then 8 times 5 to get 40. Add these together to get 200. 200 times 3 is 600, and 20 times 200 is 4000. Add these together to get your final answer, 4600.

In other words 8 x 20 + 8 x 5 = 200 200 x 3 + 200 x 20 = 4600

*I assumed you meant mentally, because otherwise you'd just multiply longhand, multiplying two of the three numbers and then multiplying their product with the third.

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3 years ago

Terry has 15 candles. She needs at least 100 candles. The candles she wants are sold in boxes of 8. What is the least number of

enyata [817]

Answer:

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Step-by-step explanation:

1. 100-15=85

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3 years ago

Read 2 more answers

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Veronika [31]

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7/8

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1 year ago

A student writes the equation for a line that gas a slope of -6 and passes through the point (2,-8).

GREYUIT [131]

On the third step it adds 8 on both sides. You are suppose to subtract 8 on both sides.

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3 years ago

At the beginning of the bake sale merry set aside two pies for herself Kate bought half of the remaining pies for a birthday par

nirvana33 [79]

So.. .at the beginning of the sale, there was a total of "x" pies

now, let's see what happened to those pies
$\bf \begin{array}{lrlll}
&pies\\\\
&\textendash\textendash\textendash\textendash\textendash\textendash&\\

Mary&x-2\\\\
Kate&\cfrac{x-2}{2}\\\\
\textit{pies sold}&10\\\\
\textit{pies leftover}&14
\end{array}$

so, we had "x"
then Mary took 2, she left x - 2
Kate took half of that (x-2)/2
then 10 were sold, and 14 leftover

if we subtract all those figures, and solve for "x",
we should get what "x" was, so $\bf (x-2)-\left( \cfrac{x-2}{2} \right)-10-14=0$

notice, if we subtract what Mary took, and Kate, and the sold and leftover, from the original "x", we would end up with no pies :)

so.. just solve for "x"

6 0

3 years ago