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Hunter-Best [27]

3 years ago

8

The tree farm has a parking lot that will hold 1000 vehicles. Two-fifths of the parking lot spaces are for cars. When you went t

o buy your tree, there were 200 cars and some trucks in the parking lot. The parking lot was three-fourths full. How many trucks were in the lot?

1 answer:

Inessa05 [86]3 years ago

4 0

They’re were 550 trucks in the parking lot.

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8-(4x?) Does anybody know this?

AnnZ [28]

Answer: -32x explanation

7 0

3 years ago

what is the total surface area of the garden in inches, feet and yards that is 70 ft long and 45 wide?

arlik [135]

So,

First, we will find the surface area of the garden in feet.
(70)(45) = 3150 square ft.

Next, to find the surface area of the garden inches, we need to recall the conversion rate between feet and inches.
1 ft. = 12 in.

So, multiply 3150 by 12.
(3150)(12) = 37,800 square in.

To find the surface area of the garden in yards, we need to recall the conversion rate between yards and feet.
1 yd. = 3 ft.

So, divide 3150 by 3.
$\frac{3150}{3} = 1050\ square\ yd.$

Area of the garden in inches: 37,800 square in.
Area of the garden in feet: 3150 square ft.
Area of the garden in yards: 1050 square yd.

3 0

4 years ago

What is the least comun denomanater of 9/10 and 7/8??

GenaCL600 [577]

Answer:

The least common denomator of 10 and 8 is 40

Step-by-step explanation:

8 10

16 20

24 30

32 40

40

8 0

3 years ago

Read 2 more answers

Stephanie has an aquarium that is in the shape of a right rectangular prism, 50 centimetres long, 25 centimetres wide and 30 cen

Bess [88]

To solve this, we are going to use the volume formula for a rectangular prism: $V=lwh$
where
$V$ is the volume of the prism
$l$ is the length of the prism
$w$ is the width of the prism
$h$ is the height of the prism

We are also using the volume of a sphere formula: $V= \frac{4}{3} \pi r^{3}$
where
$V$ is the volume of the sphere
$r$ is the radius of the sphere

Part A: Since she <span>wants a layer of marbles in the bottom of the tank about 5 centimeters deep, the height of this little rectangular prism will be 5 centimeters, so </span> $h=5$ . Since the other measures of our little rectangular prism are the same as the aquarium, $l=50$ and $w=25$ . Lets replace those values in our volume formula:
$V=lwh$
$V=(50)(25)(5)$
$V=6250 cm^{3}$
Now that we know that she wants to cover a volume of 6250 $cm^{3}$ with marbles, lets find the volume of each marble.
We know that the diameter of each marble is 1 cm. Since the radius is of a sphere is half its diameter, $r= \frac{1}{2} =0.5$ . Lets replace that value in our volume formula:
$V= \frac{4}{3} \pi r^{3}$
$V= \frac{4}{3} \pi (0.5)^{3}$
$V=0.52 cm^{3}$
Now, let $x$ the number of marbles she will need to cover a volume of 6250 $cm^{3}$ :
$0.52x=6250$
$x= \frac{6250}{0.52}$
$x=12019.23$
Since we know that each bag of marbles has 500 marbles, we are going to divide the number of marbles she will need by the number of marbles in each bag:
$\frac{12019.23}{500} =24.03$

We can conclude that to fill a layer of 5 cm with marbles, she will need 24 bags of marbles.

Part B: We know that she already have 5 cm of her aquarium filled with marbles, and that she also added water <span>until it’s level is 3 centimeters below the top of the tank, so to find the height of this new rectangular prism, we are going to subtract 5 cm plus 3 cm from the original height of her aquarium:
</span> $h=30-(5+8)$
$h=30-13$
$h=17cm$
Since the other measures of our little rectangular prism are the same as the aquarium, $l=50$ and $w=25$ . Lets replace those values in our volume formula:
$V=lwh$
$V=(50)(25)(17)$
$V=21250cm^{3}$
Remember that $1litre=1000cm^{3}$ . So:
$(21250cm^3)( \frac{1litre}{1000cm^{3})} =21.25liters$

We can conclude that there are 21.25 liters of water in the tank.

6 0

3 years ago

Are the figures congruent or not ?

LUCKY_DIMON [66]

They are not congruent

4 0

4 years ago