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Sergeeva-Olga [200]

2 years ago

14

a bag contains 7 read marbles and 5 black marble. You addd 60 marbles to the bag while keeping the ration of red marbles to blac

k marbles the smae. How many of each color should you add?

1 answer:

Digiron [165]2 years ago

4 0

Answer:

35 red and 25 black

Step-by-step explanation:

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?????evauate?????????

miskamm [114]

Answer:

2

Step-by-step explanation:

Substitute a = - 6 into the expression, that is

a² + 7a + 8

= (- 6)² + 7(- 6) + 8 = 36 - 42 + 8 = - 6 + 8 = 2

7 0

2 years ago

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What is the reciprocal of 9/7?

Bingel [31]

Answer:

its 7/9

Step-by-step explanation:

you just have to flip the fractions

6 0

2 years ago

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Find the distance between the points ( 19 , 16 ) and ( − 13, 10 )

Inessa [10]

Answer:

$\sqrt{1060}=32.55..... or 32.6$

Step-by-step explanation:

$\sqrt{(-13-19)^2+(10-16)^2}$

$\sqrt{(-32)^2+(-6)^2}$

$\sqrt{1024+36}$

$\sqrt{1060}=32.55..... or 32.6$

hope this helps

7 0

2 years ago

The length of a new rectangular playing field is 5 yards longer than double the width. if the perimeter of the playing field is

Elena L [17]

The answer is 59.6 because I divided 298 by 5
Hope this helps!!

5 0

2 years ago

If |u| = 10, |v| = 8, and the angle formed between them is 60°, then u · v = ?

Gre4nikov [31]

U . v = |u| . |v| cos 60 = 10 * 8 * 0.5 = 40 This is called the scalar (or dot) product.

5 0

2 years ago