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4 years ago

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased.

2 answers:

6 0

The amount left in the fund decreases by $110 for each desk purchased.
We suspect that each new desk probably costs $110.

Grace [21]4 years ago

6 0

Answer:

$110 is the decrease in the school desk's fund for each new desk is purchased.

Step-by-step explanation:

We have to calculate the amount of money left in the school's desk fund when a new desk is purchased.

From the given link we find two points (2, 480) and (5, 150), and the decrease in fund when a desk is purchased will be denoted as

Decrease in school's desk fund after a new purchase = Change in y coordinates of the points / difference in x-coordinates

= (480-150)/(5-2) = 330/3 = $110

Answer is $110.

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What is 9 divided by 765 please show the work i really need help

BartSMP [9]

765 / 9 = 85
9*100 = 900 but this is too much
900 - 765 = 135
9 goes into 135 15 times (9*10=90 which leaves 45 which is 9*5 so 5+10) so you minus 15 from the 100 that made 900
so 100 - 15 = 85

5 0

3 years ago

Read 2 more answers

the surface area of a sphere is 1,017.36 square inches.what is the volume of the sphere? use 3.14 for pi

emmasim [6.3K]

Answer:

Area = 254.34 inches ³

Step-by-step explanation:

The formula to find the surface area of a sphere is:

$SA = 4\pi r^{2}$

To find the volume of the sphere, we first need to figure out the radius ( $r$ ) of the sphere. We can accomplish this by reversing the formula that was used to find the surface area. $(1017.36 in^{2})$

$SA = 4\pi r^{2}$

$1017.36 = 4\pi r^{2}$

Divide both sides by pi ( $3.14$ ).

$1017.36 = 4\pi r^{2}$

$324 = 4 r^{2}$

Divide both sides by 4.

$324 = 4 r^{2}$

$81 = r^{2}\\$

Find the square root of both sides.

$81 = r^{2}\\$

$\sqrt{81} = r$

radius = 9

Insert the value of the radius into the formula for finding the volume of a sphere. $(A=\pi r^{2})$

$(A=\pi r^{2})$

$A=\pi (9)^{2}$

$A=\pi (81)$

$A = 254.34$

Area = 254.34 inches ³

~Hope this helps!~

4 0

3 years ago

How many significant digits are in thus number 74.30

goblinko [34]

Answer:

Step-by-step explanation:

all numbers except from zero

that would mean 7 4 and 3

so there would be 3 significant figures

I hope it goes well

7 0

3 years ago

Please help I don’t understand

KIM [24]

Answer:

The equivalent ratios are:

16:10

8:5

48:30

Step-by-step explanation:

It is given that the ratios are equivalent ratios. So all the ratios will simplify to the same ratio. We can use this to find the ratios.

given ratio is:

16:10

which simplifies to

8:5

We can observe that the second ratio will be same 8:5

Now,

$\frac{8}{5} = \frac{x}{30}\\x = \frac{8}{5} * 30\\x = 48$

Hence,

The equivalent ratios are:

16:10

8:5

48:30

8 0

3 years ago

The eye of a dinosaur has 9 yellow, 2 white, 4 black,

vivado [14]

20:5
The total number of jelly beans is 20, and there are 5 orange jelly beans. This is a total to part ratio because it’s comparing the entirety to a part.

8 0

4 years ago