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Ipatiy [6.2K]
3 years ago
10

On a test Matilda answered 12 out of the first 15 correctly. If this rate continues how many of the next 25 problems will she an

swer correctly?
Mathematics
2 answers:
Anestetic [448]3 years ago
8 0

Answer:

The correct answer is 20.

Step-by-step explanation:

First let's set the facts:

A) Total answers: 15    C) Correct answers: 12

B) Problems to solve: 25   D)  Next correct answers: x

Now we have three known values and an unknown one, and what we are going to do is a cross multiplication.

A/B = C/D

We multiply the numerator of each side by the denominator of the other side, crossing the terms over.

AxD = BxC

15 x X = 25x12

15X = 300

X= 300/15

X=20

Reil [10]3 years ago
5 0
12/15 = x/100
Multiply 12 x 100 to get 1,200/15 is 80.
Because 25 x 4 = 100, you divide 80 by 4.
Your answer is 20.
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A rectangular prism has a volume of 572 cubic inches. The prism is 4 inches long and 13 inches wide. What is the height of the p
Leya [2.2K]

Answer:

Height of rectangular prism = 11 inches

Step-by-step explanation:

Given that:

Volume of rectangular prism = 572 cubic inches

Length of prism = 4 inches

Width of prism = 13 inches

Volume of prism = Length * Width * Height

572 = 4 * 13 * h

572 = 52h

52h = 572

Dividing both sides by 52

\frac{52h}{52}=\frac{572}{52}\\h=11

Hence,

Height of rectangular prism = 11 inches

4 0
3 years ago
Graph the line using a point and a slope. Write the equation of each line. A line that passes through the point (0, –3) and para
kiruha [24]
Y + 3 = 1.2(x - 0)

y + 3 = 1.2x - 0

y = 1.2x - 3
5 0
3 years ago
Pls help me!!!!!!!!!!!!!!
professor190 [17]

Answer:

H

Step-by-step explanation:

To find purple, you divide 162 by 3 as there are 3 people who like red for every one person who like purple. To find blue, you need to divide 162 by 3, which is 54, and then multiply it by 9 because there were 9 people who like blue for every person that liked purple.

7 0
3 years ago
Solve the equation for y (y-3)^2=4y-12
Ket [755]
(y -3)^2 = 4y - 12

Expand.

(y-3)(y -3) = 4y - 12

y² - 6y + 9 = 4y - 12

y² - 6y -4y + 9 + 12 = 0

y² - 10y + 21 = 0

Factors are -7y and - 3y

y² - 10y + 21 = 0

y² - 3y - 7y + 21 = 0

y(y - 3) -7(y - 3) = 0

(y - 3)(y - 7) = 0

y-3 = 0   or    y - 7 = 0

y = 0 + 3  or  y = 0 + 7

y = 3 or 7
8 0
3 years ago
A boat can carry 22 people 940 people went on the boat how many trips did the boat do
hjlf
Answer:
42 trips

You just divide 940 by 22
6 0
3 years ago
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