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11111nata11111 [884]
2 years ago
10

Please help!! I have been stuck on this question for a while

Mathematics
1 answer:
denis23 [38]2 years ago
8 0

Answer:

180\ in.^2

Step-by-step explanation:

The area of a rectangle can is defined as A = wl where w is the width and l is the length. The width in this case is 12 and the length is 15. Also it doesn't really matter what order you put it in. This gives you an area of (15\ in.) (12\ in.) = 180\ in.^2

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a family has two cars. the first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of
Kryger [21]
Let the number of gallons consumed be the first car be x, and that of the second car, y. Then:
x + y = 50 . . . . . . . (1)
20x + 15y = 850. . . (2)

(1) x 20 => 20x + 20y = 1000 . . . (3)
(2) - (3) => -5y = -150 => y = -150/-5 = 30

From (1), x + 30 = 50 => x = 50 - 30 = 20

Therefore, first car consumed 20 gallons and the second consumed 30 gallons.
3 0
3 years ago
What is the distance from Cto D?
IRINA_888 [86]

Given:

The two points C(2,-1) and D(5,3) on a coordinate plane.

To find:

The distance from C to D.

Solution:

The distance between two points is defined by the distance formula.

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The two points are C(2,-1) and D(5,3). Using the distance formula, we get

CD=\sqrt{(5-2)^2+(3-(-1))^2}

CD=\sqrt{(3)^2+(3+1)^2}

CD=\sqrt{(3)^2+4^2}

On further simplification, we get

CD=\sqrt{9+16}

CD=\sqrt{25}

CD=5

The distance from point C to D is 5 units. Therefore, the correct option is A.

8 0
2 years ago
Can somebody help me?
nata0808 [166]
Answer: I believe the answer would be -2 so plot it on -2.

Explanation: Point P is -2.5 and point R is 0.5. Adding those would equal -2.

i hope this helps! :)
7 0
3 years ago
Determine the x- and y- intercepts for the graph defined by the given equation. y = -8 a. x-intercept is (0, -8) No y-intercept
makvit [3.9K]
For this case we have the following equation:
 y = -8
 The equation is a horizontal line.
 The horizontal line cuts to the axis and in the following point:
 (x, y) = (0, -8)
 The horizontal line does not cut to the x axis.
 Answer:
 
b. No x-intercept y-intercept is (0, -8)
7 0
3 years ago
A lawn can be mowed by 8 people in 6 hours. If 3 people take the day off and do not help mow the grass, how many hours will it t
JulijaS [17]

If 3 people take the day off, they will need (9 + 3/5) hours to mow the lawn. The correct option is B.

<h3>How many hours will it take to mow the lawn?</h3>

Let's say that each person works at a rate R.

8 people can mow the lawn in 6 hours, then we can write:

(8*R)*6 hours = 1 lawn.

Solving for R:

R = (1/48 lawns per hour).

If 3 people take the day off, then the lawn is mowed by 5 people in a time T, then we need to solve:

(5*R)*T = 1 lawn.

Replacing the value of R:

(5/48 lawns per hour)*T = 1 lawn.

Then we have:

T = (48/5) hours.

We can rewrite that as:

T = (45/5 + 3/5) hours

T = 9 + 3/5 hours.

Then we conclude that the correct option is B.

If you want to learn more about rates:

brainly.com/question/8728504

#SPJ1

3 0
2 years ago
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