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kow [346]
3 years ago
8

Need help with math quarterly please

Mathematics
2 answers:
Readme [11.4K]3 years ago
7 0

Answer:

c=40

Step-by-step explanation:

a + c=65 equation 1

7a+4c=335 equation 2

c=65-a isolate c from equation 1

7a+4(65-a)=335

7a+260-4a=335

3a=75

a=25

solve for c

a+c=65

25+c=65

c=40

check answer:

7a+4c=335

7(25)+4(40)=335

175+160=335

335=335

lesya [120]3 years ago
4 0
Put a more clearer picture can’t see men
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7 0
2 years ago
Jayden and Sheridan both tried to find the missing side of the right triangle. A right triangle is shown. One leg is labeled as
stellarik [79]

Answer:

Sheridan's Work is correct

Step-by-step explanation:

we know that

The lengths side of a right triangle must satisfy the Pythagoras Theorem

c^{2}=a^{2}+b^{2}

where

a and b are the legs

c is the hypotenuse (the greater side)

In this problem

Let

a=7\ cm\\c=13\ cm

substitute

13^{2}=7^{2}+b^{2}

Solve for b

169=49+b^{2}

b^{2}=169-49

b^{2}=120

b=\sqrt{120}\ cm

b=10.95\ cm

we have that

<em>Jayden's Work</em>

a^{2}+b^{2}=c^{2}

a=7\ cm\\b=13\ cm

substitute and solve for c

7^{2}+13^{2}=c^{2}

49+169=c^{2}

218=c^{2}

c=\sqrt{218}\ cm

c=14.76\ cm

Jayden's Work is incorrect, because the missing side is not the hypotenuse of the right triangle

<em>Sheridan's Work</em>

a^{2}+b^{2}=c^{2}

a=7\ cm\\c=13\ cm

substitute

7^{2}+b^{2}=13^{2}

Solve for b

49+b^{2}=169

b^{2}=169-49

b^{2}=120

b=\sqrt{120}\ cm

b=10.95\ cm

therefore

Sheridan's Work is correct

6 0
3 years ago
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Answer:

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Step-by-step explanation:

The math is correct

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Answer:

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