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Korvikt [17]
3 years ago
9

Help please this is for a math quiz and i’ll give brainliest

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

5.25

Step-by-step explanation:

you divide 78.75 by 15

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3x(2) - 5

6x - 5 is the simplified form
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Determine if the two triangles are congruent. If they are, state how you know.
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How is number 0.000063 written in scientific notation?
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Step-by-step explanation:

The scientific notation:

a\times10^k

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3 years ago
Please help me solve for x =
Sladkaya [172]

Answer:

x = 13

Step-by-step explanation:

Given that Δ NML and Δ PST are similar right triangles, we can set up the following proportional statement to establish their relationship:

\frac{ML}{NM} = \frac{ST}{PS}

\frac{8}{10} = \frac{x - 1}{x + 2}

Cross multiply:

8(x + 2) = 10 (x - 1)

8x + 16 = 10x - 10

Subtract 8x from both sides:

8x - 8x + 16 = 10x - 8x - 10

16 = 2x - 10

Add 10 to both sides:

16 + 10 = 2x - 10 + 10

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Divide both sides by 2:

\frac{26}{2} = \frac{2x}{2}

13 = x

Verify whether x = 13 is the correct value:

\frac{ML}{NM} = \frac{ST}{PS}

\frac{8}{10} = \frac{x - 1}{x + 2}

\frac{8/2}{10/2} = \frac{4}{5}

\frac{x -1}{x+2} =  \frac{13 - 1}{13 + 2} = \frac{12}{15} = \frac{12 / 3}{15 /3} = \frac{4}{5}

This shows the proportional relationship between \frac{ML}{NM} = \frac{ST}{PS}, and that ΔNML and ΔPST are indeed similar right triangles.

Therefore, the correct answer is x = 13.

4 0
3 years ago
A bank is offering 2.5% simple interest on a savings account . if you deposit $5000, how much interest will you earn in one year
hjlf

Answer: $1,500

I=PRT

I=(5000)(.025)(12)

I=$1,500

4 0
2 years ago
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