All categories

3 years ago

Someone please help me with #15

Mathematics

1 answer:

harina [27]3 years ago

6 0

Answer:

b. A year and a half

Step-by-step explanation:

First, we can find the total cost

$1512+263=1775$

Next, we can divide by 50 in order to find out how many months it will take for the panel to pay for itself.

$\frac{1775}{50} =35.5$ months

This is very close to 36 months, which is A year and a half.

You might be interested in

Graph. y−2=23(x+4) Use the Line Tool and select two points to graph the equation. Use the slope and the point provided in the eq

sveticcg [70]

Answer:

See attached picture.

Step-by-step explanation:

The equation is in point slope form $y - y_1 = m(x-x_1)$ where m is the slope and $(x_1,y_1)$ is a point.

For the equation y-2 = 23(x+4), graph the point (-4,2). Then from this point count up 23 and over to the right 1.

This is the graph of the line.

3 0

3 years ago

Which property is demonstrated in the equation 0 x 35 = 0?

Kisachek [45]

Answer:

Step-by-step explanation:

the property of zero,

multiplication property of zero

8 0

3 years ago

Boundxvoltz967 avatar

guapka [62]

Answer:

ur gay.....lollllllllllllllllllll

Step-by-step explanation:

milk

3 0

2 years ago

If -3(y-1)=9 find the value of 1/2y

Sveta_85 [38]

Answer:

-1

Step-by-step explanation:

y-1=-3

y=-2

.:1/2y=1/2(-2)=-1

4 0

3 years ago

Granola costs $6.50 per pound. Assorted nuts cost $9 per pound. How many pounds of granola and nuts are needed to make 9 pounds

bezimeni [28]

Answer:

3.6 pounds of granola and 5.4 pounds of nuts

Step-by-step explanation:

Let the required granola be x pounds, then amount of nuts is 9 - x.

The price of the mixture is as below equation:

6.5x + 9(9 - x) = 8*9
6.5x + 81 - 9x = 72
81 - 2.5x = 72
2.5x = 81 - 72
2.5x = 9
x = 9/2.5
x = 3.6

Find the amount of nuts:

9 - 3.6 = 5.4

7 0

2 years ago