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lubasha [3.4K]
3 years ago
9

I REALLY NEED HELP Use the distributive property to simplify the expressions: 3(x + 7)

Mathematics
1 answer:
kiruha [24]3 years ago
4 0

Answer:

3x + 21 is your answer

Step-by-step explanation:

3(x+7)

3 × x = 3x

3 × 7 = 21

3x = 21

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Sora correctly solved this inequality.
mash [69]

Answer:

D.

Step-by-step explanation:

Took 2020 middle school Ed unit test end of year

8 0
3 years ago
1.
mr_godi [17]
Plug the points into the equation.
Ex. y=3x-5
(X,y)
1. (5,10): 10=3(5)-5
15-5=10; point 1 is valid
-1=3(-2)-5
-1=-6-5
-1 does not equal -11
Point 2 is not valid
Same process for letter B
8 0
3 years ago
You and your friend mix water and cirtic acid. You add 3 cups of citrtic acid for every 16 cups of water Your friend adds 2 cups
Vlad [161]

Answer:

A's mixture is more acidic.

Step-by-step explanation:

Given:

Two friends mix water and citric acid.

One (Let A) add 3 cups of citric acid for every 16 cups of water and another (Let B)adds 2 cups of citric acid for every 12 cups of water.

Now, we have to find that whose mixture is more acidic means:-

Solution:

A add 3 cups of citric acid for every 16 cups of water, the ratio = \frac{3}{16}

B adds 2 cups of citric acid for every 12 cups of water = \frac{2}{12}

Now, to find that who mix more citric acid in the mixture, firstly we will equalize the denominator of both fraction by taking LCM so that can be compare easily.

LCM of 16 and 12:- <u>48</u>

16 - 16, 32, <u>48</u>, 64, 80, 96....

12 - 12, 24, 36, <u>48, </u>60, 72.......

For friend A - \frac{3\times3}{16\times3} =\frac{9}{48}

For friend B - \frac{2\times4}{12\times4} =\frac{8}{48}

<em>We found that in terms of 48 cups of water, friend A mixes 9 cups of acid while friend B mixes 8 cups of acid, means A is adding more acid than B and</em> hence friend A's mixture is more acidic.

4 0
3 years ago
Kyle's father is 67 ft. tall. Kyle is 5 feet tall. How many times taller is Kyle's father than him?​
MrRissso [65]

Answer:

13.5

Step-by-step explanation:

to find the answer you divide 67 and 5 and get 13.5. to check your answer, you can do 13.5 x 5 and get 67 because 67 is 13.5 times 5. why is kyles dad so tall though..

5 0
2 years ago
2 divided 3 is 2/3. What is<br> 1/3 of 2?
VLD [36.1K]

Answer:

0.6666667

Step-by-step explanation:

1/3 of 2 is 0.6666667

7 0
2 years ago
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