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3 years ago

8

How do i do these two while using a proportion?

1 answer:

AnnZ [28]3 years ago

7 0

For #2, the proportion would be .40/.25 and x/15, then you would cross multiply to find x. and for #3 the proportion would be 15/6 and 75/x and again you would cross multiply to find x. (:

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(GIVING BRAINLIEST!!!)

AfilCa [17]

Answer:

$Total\ length = 8\frac{5}{8}\ miles$

Step-by-step explanation:

Given

See attachment for ski trails

Required

Total length of $2\frac{7}{8}$ ski trails

From the attached figure, there are 3 skis with length $2\frac{7}{8}\ miles$

So:

The total length is:

$Total\ length = 3 * 2\frac{7}{8}$

Express fraction as improper fraction

$Total\ length = 3 * \frac{23}{8}$

$Total\ length = \frac{3 *23}{8}$

$Total\ length = \frac{69}{8}$

$Total\ length = 8\frac{5}{8}\ miles$

8 0

3 years ago

What is the slope of a ladder leaning against the wall? (10 ft, 9ft, 3ft)

allsm [11]

the ladder leaning against the wall has slope 3

7 0

3 years ago

Which expression is equivalent to 2x + x^2 + 3x + 5x^2 - 10x?

Nonamiya [84]

<span>2x + x</span>²<span> + 3x + 5x</span>²<span> - 10x (combine like terms)
6x</span>² + 5x -10x
6x² - 5x
which is the same as
-5x +6x²
Your answer is C

8 0

3 years ago

Read 2 more answers

66 is 75% of what number?

Anon25 [30]

88 is what it is 75% of

6 0

2 years ago

Read 2 more answers

PLEASEEEEE HELPPPP MEEEEEEE BRAINLIEST TO THE FIRST ANSWER AND 30 POINTS

icang [17]

Answer:

CD ≠ EF

Step-by-step explanation:

Using the distance formula

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = C(- 2, 5) and (x₂, y₂ ) = D(- 1, 1)

CD = $\sqrt{(-1+2)^2+(1-5)^2}$

= $\sqrt{1^2+(-4)^2}$

= $\sqrt{1+16}$ = $\sqrt{17}$

Repeat using (x₁, y₁ ) = E(- 4, - 3) and (x₂, y₂ ) = F(- 1, - 1)

EF = $\sqrt{(- 1+4)^2+(-1+3)^2}$

= $\sqrt{3^2+2^2}$

= $\sqrt{9+4}$ = $\sqrt{13}$

Since $\sqrt{17}$ ≈ $\sqrt{13}$ , then CD and EF are not congruent

6 0

3 years ago