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vova2212 [387]
3 years ago
13

The ratio of blue marbles to red marbles in a box is 3 to 2.if there are 12 blue marbles in the box then how many red marbles ar

e there
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
7 0
I think of this like a fraction where as the number of red marbles is X.

the numerator is blue marbles and the denominator is red marbles

3/2 = 12/x

How many times does 3 go into 12?
Answer 4 times.

4 x 2 = X

Final Answer 8

There are 8 red marbles.

Please mark brainliest.


neonofarm [45]3 years ago
4 0
You need to make a proportion.  Then cross multiply and divide to find your answer.

blue  3     12
red    2      x

(2)(12) = 3x
24  = 3x
x = 8

There are 8 red marbles

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Miranda is adding the numbers below. 2.9 times 10^10 + 5.35 times 10^10 What is the sum written in scientific notation?
Zarrin [17]
2.9*10^10+ 5.35*10^10
= (2.9+ 5.35)*10^10 (distributive property)
= 8.25*10^10

The correct answer is A. <span>8.25 times 10^10~</span>
6 0
3 years ago
Demand and supply in a market are described by the following equations: qd = 66-3p qs = -4 2p find the equilibrium price and qua
Arada [10]

The equilibrium price is $14 and the quantity is 24.

<h3>What is the equilibrium price?</h3>

Equilibrium is the place in the market where there is no trend for change.

Buyers’ and sellers’ plans accord, and consequently quantity demanded equals quantity supplied.

The equilibrium price occurs when the quantity demanded equals the quantity supplied.

The demand and supply functions are, respectively:

Demand and supply in a market are described by the following equations: QD = 66-3p and qs = -4 + 2p.

The equilibrium price and quantity are;

QD = QS

66-3p = -4 + 2p

66 + 4 = 2p + 3p

70 = 5p

p = 70/5

p = 14

QD = 66-3p

QD = 66-3 × 14

QD = 66- 42

QD = 24

Hence, the equilibrium price is $14 and the quantity is 24.

Learn more about equilibrium quantity here;

brainly.com/question/5101182

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5 0
2 years ago
PLZ HELP ASAP SOLVE SIMMILAR TRAINGLES
Dafna1 [17]
The two similar triangles in the figures are:

a) ABC
b) ADE

For triangle ABC, the two sides are x and 6.
For triangle ADE, two corresponding sides are (x+8) and 8

For similar triangles, the ratio of corresponding sides is the same.

So, we can write:

\frac{x}{6}= \frac{x+8}{8}   \\  \\ &#10;8x=6(x+8) \\  \\ &#10;8x=6x+48 \\  \\ &#10;2x=48 \\  \\ &#10;x=24&#10;

Thus, the value of x will be 24
8 0
3 years ago
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VikaD [51]
H I’m only on 6th grade go to your teacher
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2 years ago
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Pease help Marking Brainiest
Trava [24]
It would be 150 miles

equation: y = 30x
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3 years ago
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