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Cerrena [4.2K]
2 years ago
7

The diagram shows a triangle. 490 880 What is the value of v? V =

Mathematics
2 answers:
wolverine [178]2 years ago
5 0

Answer:

the answer is 43

Step-by-step explanation:

this is so simple

the first thing that u have to remember or there is a rule

the rule is : that all the three angels added up equal to 180 degrees

so that means 88+49+v=180

88+49+v=180 first combine like terms

137+v=180 now subtract both sides by 137

v=  43

ANSWER CHECK

88+49= 137

137+ 43= 180

Step2247 [10]2 years ago
3 0

Answer:

43°

Step-by-step explanation:

The first thing you should do is make the equation. We should know that the sum of all the angles is 180. So it should look like this...

49+88+x=180

Combine like terms:

137+x=180

Subtract the 137 on both sides:

x= 43

That's it the value of v is 43°.

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Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.
alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost  $19.75.

5x+2y=19.75 ---------- 1

Two cupcakes  and four cookies cost $17.50.

2x+4y=17.50 --------------2

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

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Subtract equation 2 from equation 3;

10x-2x+4y-4y=39.50-8x=22

8x=22

divide both sides by 8

\frac{8x}{8} =\frac{22}{8} \\x=2.75

Since we have the value of x, let substitute into equation 1 to get y;

5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00

therefore , the cost of cupcakes and cookies are;

cupcakes=  2.75\\cookies= 3.00

PLEASE MARK ME AS BRAINLIEST

6 0
2 years ago
Anne earned $3 an hour baby-sitting, and $4 an hour working in the garden. Last week she did baby-sitting for 5 hours and garden
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She needs 8 more dollars.  
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Given that <br> x<br> = 7.7 m and <br> θ<br> = 52°, work out AC rounded to 3 SF.
Helen [10]

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Step-by-step explanation:

cos 52= 7.7/AC

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