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N76 [4]
3 years ago
6

2.5 is 10% of what number?

Mathematics
2 answers:
Romashka [77]3 years ago
8 0

2.5=10/100x

Simplify

2.5=1/10x

Flip the equation.

1/10x=2.5

Multiply both sides by 10.

10*(1/10x)=(10)*(2.5)

x=25

Stolb23 [73]3 years ago
8 0
Is means equal
of means multiplication

so we get

2.5 = \frac{10}{100} \times n \\ 2.5 = .1 \times n \\ n = 25

Hope that helps :)
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Right △EFG has its right angle at F, EG=8 , and FG=2 .
d1i1m1o1n [39]

Answer:

Tan E = 2 / 7.75

Sin G = 7.75 / 8

Sec G = 4

Step-by-step explanation:

Find the attached document for better illustration of the triangle

Assuming the hypothenus of the triangle is 8 = EG since it's the longest side of the triangle.

FG = 2 = opposite side of the triangle.

We can use pythagorean theorem to find the adjacent of the triangle since we already know two sides.

EG² = FG² + EF²

EF² = EG² - FG²

EF² = 8² - 2²

EF² = 64 - 4

EF² = 60

EF = √(60)

EF = 7.7459 = 7.75

To find the respective trignometric ratio, we can use the relation SOH CAH TOA

Sine = opposite / hypothenus

Cosine = adjacent/ hypothenus

Tangent = opposite/ adjacent

A. tan E

Tan E = opposite/ adjacent

Tan E = 2 / 7.75

Tan E = 0.2580

B. Sin G = opposite / hypothenus

Sin G = 7.75 / 8

Sin G = 0.9687

C. Sec G = 1 / cos G

Cos G = adjacent / hypothenus

Sec G = 1 / (adjacent / hypothenus)

Sec G = hypothenus/ adjacent

Sec G = 8 / 2

Sec G = 4

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3 years ago
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Answer:

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Step-by-step explanation:

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3 0
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laiz [17]

Answer: B

Step-by-step explanation:

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Answer:

\frac{1}{3}

Step-by-step explanation:

The rate of change is measured by the slope of the line in this linear table.

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7 0
3 years ago
Did I get all of the questions right?
Ymorist [56]
I believe you did but if you need help feel free to chat with me
5 0
3 years ago
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