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Oksi-84 [34.3K]

3 years ago

8

PLEASE PLEASE PLEASE HELP! SOO STUCK!

1 answer:

coldgirl [10]3 years ago

4 0

Answer:80m^2

Step-by-step explanation:

Formula for trapezoid

1/2h(b1+b2)

1/2(8)(6+14)

4(20)=80

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The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 30 gal of water and is filled at a co

kakasveta [241]

You first have to set up the two equations. Y is equal to the total number of gallons in a tank and x is equal to the number of hours the tanks are filling.

Since the two equations both equal y I can make them equal each other. I then solved for x as you see and got -4.

Once I found my x value I now needed to find my y. You only needed to chose one equation to solve for y, so I decided to do the first one. I plugged in -4 where my x value currently was and solved for y. I got 2.

If you have any questions please comment!! Hope this helps!!

3 0

3 years ago

Solve for z -0.25z= -1.25

GarryVolchara [31]

Answer:

<h2>z = 5</h2>

Step-by-step explanation:

-0.25z= -1.25

Convert the decimals to improper fractions

That's

<h3> $- 1.25 = - \frac{5}{4}$ </h3><h3> $- 0.25 = - \frac{1}{4}$ </h3>

So we have

<h3> $- \frac{1}{4} z = - \frac{5}{4}$ </h3>

Multiply through by 4

We have

- z = - 5

Divide both sides by - 1

the final answer is

<h3>z = 5</h3>

Hope this helps you

6 0

3 years ago

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the father is 30 years older than his son.after 10 years from now ,the sum of their ages is 64.what are their ages right now

prohojiy [21]

24 the answer is 24

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7 0

3 years ago

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Which is the slope of the line that passes through the points (−3,1) and (4,−2)?

dimaraw [331]

Answer:

The slope of the line is $-\frac{3}{7}$ ⇒ B

Step-by-step explanation:

Let us revise the rule of the slope

The rule of the slope of the line is m = $\frac{y2-y1}{x2-x1}$ , where

(x1, y1) and (x2, y2) are two points lie on the line

∵ The line passes through the point (-3, 1) and point (4, -2)

→ That means one of them is (x1, y1) and the other is (x2, y2)

∴ x1 = -3 and y1 = 1

∴ x2 = 4 and y2 = -2

→ Substitute them in the rule of the slope above to find it

∵ m = $\frac{-2-1}{4--3}$ = $\frac{-3}{4+3}$

∴ m = $-\frac{3}{7}$

∴ The slope of the line is $-\frac{3}{7}$

4 0

3 years ago

In simplest form, what mixed number is equivalent to 22\8?

LuckyWell [14K]

2 big number and 3 over 4

5 0

3 years ago

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