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3 years ago

how many square tiles with sides 1 ft long on each edge would be needed to the floor of an 8-by-13ft room

1 answer:

Colt1911 [192]3 years ago

7 0

Multiply 8*13 to find total square footage. Since each tile is 1 square foot you need one tile per 1 square foot. So you need 104 tiles.

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suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds 85% of its previous height.

Rama09 [41]

Height is 15 feet

It rebounds 85% of its original height

.85*15=12.75 feet on 1st bounce

12.75*.85=10.8375 feet on the 2nd bounce

10.8375*.85=9.211875 feet on 3rd bounce

So your answer is 9.2 feet high

Hope this helps!

8 0

4 years ago

Kayla wants to plant a garden that contains only tomatoes and squash. She only has enough space to plant 40 vegetables, and she

frutty [35]

Solving a system of equations, we see that she can plant 20 tomatoes and 20 squashes.

<h3>How many tomatoes and how many squash can Kayla plant?</h3>

Let's define the variables:

t = number of tomatoes.
s = number of squaches.

The space is enough for 40 plants, then:

t + s = 40

And we know that she has a total of $80 to spend (we assume that she spends it all)

t*$1 + s*$3 = $80

Then our system of equations:

t + s = 40

t*$1 + s*$3 = $80

To solve this, we can isolate one of the variables in the first equation, for e xample if we isolate t, we get:

t = 40 - s

Now we can replace that in the other equation:

(40 - s)*$1 + s*$3 = $80

Now we can solve that for s:

$40 - s*$1 + s*$3 = $80

s*$2 = $40

s = $40/$2 = 20

Then she will buy 20 units of squash, and the other 20 plants will be tomatoes.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

6 0

2 years ago

Simplify this expression

luda_lava [24]

7 and 21 can cancel leaving a 3 on the bottom. one m can cancel from the bottom and the top so that leaves you with m^3 n^4/3

4 0

3 years ago

4 times the difference of a number and 3 is 4 less than 3 times the number

Contact [7]

4 (x-3)=3x-4

4x-12=3x-4
4x-12-3x=3x-4-3x
x-12=-4
x-12+12=-4+12
x=8

5 0

3 years ago

Fabio and Gwen are saving money to buy a new gaming station. They need at least $510 to purchase the new gaming station. Gwen we

Phoenix [80]

<u>Answer-</u>

Set of constraints to model the problem are,

$12x+9y\geq 510$

$y \leq 2x$

$y \geq 25$

<u>Solution-</u>

<em>x = the number of lawns weeded by Gwen,</em>

<em>y = the number of dogs walked by Fabio.</em>

As, Gwen charges $12 each time she weeds a yard and Fabio charges $9 each time he walks a dog,

$\text{Earnings of Gwen} = 12x$

$\text{Earnings of Fabio} = 9y$

$\text{Total earning} = 12x+9y$

They need at least $510 to purchase the new gaming station, means they need $510 or more than $510.

The equation for this is,

$12x+9y\geq 510$

The number of dog walks that Fabio has scheduled is no more than twice the number of yards Gwen has scheduled to weed, means

y must be less than or equal to 2x.

The equation for this is,

$y \leq 2x$

Fabio will walk at least 25 dogs, means y must be greater than of equal to 25.

The equation for this is,

$y \geq 25$

8 0

3 years ago

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