3 years ago

HELP QUICK 10 POINTS!!!!!!

1 answer:

5 0

$\frac{x}{5}$ = 10 Multiply both sides by 5 to cancel out the fraction
x = 50

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jek_recluse [69]

A lever in like a pully becasue it can pull just as so. Hope that helped. It is what my teacher taught me.

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3 years ago

densk [106]

4x5=20. 20x6=120. 120-20=100 b)100

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2 years ago

V125BC [204]

Answer:

there must me a second equation too. as an equation with two variables can not be solved by just one equation

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1 year ago

saveliy_v [14]

Answer:

BC ≈ 14.7 m

Step-by-step explanation:

Using the Sine rule in Δ ABC

$\frac{AB}{sinC}$ = $\frac{BC}{sinA}$

To find ∠ A subtract the 2 given angles from 180°

∠ A = 180° - (90 + 28)° = 180° - 118° = 62°

Then

$\frac{7.8}{sin28}$ = $\frac{BC}{sin62}$ ( cross- multiply )

BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )

BC = $\frac{7.8sin62}{sin28}$ ≈ 14.7 m ( to 3 significant figures )

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3 years ago

leva [86]

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When variables with exponents are divided by each other, you subtract the exponents.

For example:

$\frac{x^2}{x^1} = x^{2-1} =x^1$

$\frac{x^5}{x^3} =x^{5-3} = x^2$

8 0

3 years ago