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kodGreya [7K]
3 years ago
12

A bag contains both black and red marbles. The ratio of black to red marbles is 3:4.

Mathematics
1 answer:
sesenic [268]3 years ago
8 0

The total number of marbles in the bag is 7, since 3+4=7. There are 3:4 black marbles, so 3/7 of the bag is black marbles, which can be written as 3:7.

4/7 of the bag is red marbles, which can be written as 4:7

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Genrish500 [490]

The value for m is -5

Putting the x⁵ on the denominator is just a way to get rid of the negative exponent.

4 0
3 years ago
A cone and a cylinder have the same radius and height. The volume of the cone is 100π (pi) cubic feet. What is the volume of the
murzikaleks [220]

Answer:

The volume of the cylinder is 300\pi cubic feet.

Step-by-step explanation:

From Geometry we remember that volumes of a cone and a cylinder with the same radius (R), measured in feet, and height (h), measured in feet, are defined by the following equations:

Cone

V_{co} = \frac{1}{3}\pi\cdot R^{2}\cdot h (1)

Cylinder

V_{cy} = \pi\cdot R^{2}\cdot h (2)

The ratio of the volume of the cylinder to the volume of the cone is:

\frac{V_{cy}}{V_{co}} = 3 (3)

If we know that V_{co} = 100\pi\,ft^{3}, then the volume of the cylinder is:

V_{cy} = 3\cdot V_{co}

V_{cy} = 300\pi\,ft^{3}

The volume of the cylinder is 300\pi cubic feet.

3 0
3 years ago
Bob's Bakery makes 12 cakes and 36 muffins each hour.
N76 [4]
The answer is B hope it helped
8 0
3 years ago
Find the least common multiple of 10x4 and 6w3 .
jarptica [38.1K]
10x⁴ and 6w³

1) We see no the same letters in both expressions, so we will need to include all letters in the final answer. x⁴w³

2) number part
10 = 2*5
6=3*2
We need 2*3*5=30  (we need 2 only one times, because we have 2 only one time in each of the numbers).
3)The least common multiple
2*3*5x⁴w³ = 30x⁴w³
Answer is  30x⁴w³.

8 0
3 years ago
PLEASSEEEE HELP W THIS QUESTION!!!!
brilliants [131]
X/28 = 5/7
x = 28 * 5 / 7
x = 20

answer
x = 20 ft
3 0
3 years ago
Read 2 more answers
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