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MaRussiya [10]
3 years ago
14

There are 60 marbles in a jar and 15 of those marbles are blue. Find the ratio of blue marbles to the marbles that are not blue

Mathematics
1 answer:
irakobra [83]3 years ago
3 0

Answer:

1:3

Step-by-step explanation:

There are 60 marbles

15 are blue

60-15 = 45 are not blue

Ratio of blue : not blue

15:45

Divide by 15

15/15 : 45/15

1:3

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Si a un múltiplo de 8 le sumo 1 obtengo un múltiplo de 5, ¿qué múltiplos de 8
Simora [160]

Answer:

24, 64

Step-by-step explanation:

If I add 1 to a multiple of 8 I get a multiple of 5, what multiples of 8

meet the condition? (Mention at least 2 of them)

3 x 8 + 1 = 25

8 x 8 + 1 = 65

4 0
3 years ago
Use the substitution method to solve the system of equation.choose the correct ordered pair.
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Answer:

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Step-by-step explanation:


6 0
3 years ago
(ab² + 13b - 4a) + (3ab² + a +7b)
Natalija [7]

Answer:

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Step-by-step explanation:

This question most likely asks us to simplify the expression, as factoring is not possible...

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4 0
3 years ago
A statue is mounted on top of a 16 foot hill. From the base of the hill to where you are standing is 77 feet and the statue subt
DanielleElmas [232]

Consider right triangle with vertices B - base of the hill, S - top of the statue and Y - you. In this triangle angle B is right and angle Y is 13.2°. If h is a height of the statue, then the legs YB and BS have lengths 77 ft and 16+h ft.

You have lengths of two legs and measure of one acute angle, then you can use tangent to find h:

\tan 13.2^{\circ}=\dfrac{\text{opposite leg}}{\text{adjacent leg}} =\dfrac{16+h}{77}, \\ \\ 0.2345=\dfrac{16+h}{77},\\  \\ 16+h=0.2345\cdot 77=18.0565,\\ h=18.0565-16=2.0565 ft.

Answer: the height of the statue is 2.0565 ft.

8 0
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