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lawyer [7]
3 years ago
10

I need help for number 8 is it A B C or D

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0
The answer is a hope it helps
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The ratio of black marbles to red marbles is 3:2. If there are a total of 25 marbles in a bag,
kumpel [21]

Answer:

15 black marbles

Step-by-step explanation:

So its. A ratio (basically a fraction)

3/2

we add them up so we know how much marbles but not which kind

so we get 5

now we know for every 5 batches there is 3 black and 2 red

so we divide 25/5 to get 5

now we know there are 5, 5 batches of black ad red marbles.

now black is 3 of them so we multiply 5(3) which is 15

Now red is 2 of them so we multiply 5(2). Which is 10

now to check, if we add them up, they equal to 25 which is correct.

basically add the fraction, divide that by the original number, time the quotient by each number in the fraction.

8 0
3 years ago
Read 2 more answers
Zia has a slab of concrete in the shape of a parallelogram.
Aleksandr [31]

Answer:

270 in²

Step-by-step explanation:

The area of a parallelogram is given by the formula A = bh.

The base of the parallelogram is 9+9 = 18 inches.

The height of the parallelogram is 15 inches.

This makes the area 15(18) = 270 in²

7 0
3 years ago
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Consider the graph of the linear function h(x) = –x + 5. Which could you change to move the graph down 3 units? the value of b t
Artist 52 [7]
The value of b to 2.
By doing that you are applying a vertical translation to the function
3 0
3 years ago
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Emily is a diver. Today she descended to a
kotegsom [21]

She was at 40 feet below, she swam up getting so she was then at 40-10 = 30 feet below sea level.

She the swan 4 feet down so she ended up at 30 + 4 = 34 feet below sea level.

The answer is 34 feet below sea level (-34)

4 0
3 years ago
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I really need help with this
aniked [119]

Answer:

5√202

Step-by-step explanation:

By Pythagoras theorem,

x^2 = 45^2 + 55^2

= 2025 + 3025

x^2 = 5050

x = 5√202

5 0
3 years ago
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