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3 years ago

How many 4 in. square tiles will it take to cover a room that measures 18 feet by 15 feet?

Mathematics

2 answers:

Natalka [10]3 years ago

8 0

I believe the answer is 396

Kitty [74]3 years ago

5 0

It he answer might be 396

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I need help answering all of these. My teacher thinks that we should know this even though he hasn´t taught us any of this. plea

bearhunter [10]

Answer:

Step-by-step explanation:

x/2=3.5

x=3.5*2

x=7

3 0

3 years ago

Please answer this :)

Elan Coil [88]

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8 : -20, -10, 5, 10, 15

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2 years ago

Read 2 more answers

(x – 4)2 + (y - 4)2 = 25<br> Center:<br> Radius

blondinia [14]

Answer:

how to solve it is in the question above I hope it helps

6 0

4 years ago

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

4 years ago

Please Help ASAP!!! I Will give Brainliest!!!!

ziro4ka [17]

Answer:

i cant see it clearly can you send the pictures again but more cleary

Step-by-step explanation:

4 0

3 years ago