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Ierofanga [76]
2 years ago
12

-21 = 7(3 - x) Please help. You have to use distributive property to solve.

Mathematics
2 answers:
Bogdan [553]2 years ago
5 0
Answer:
x= 14

Explanation
-21= 7(3-x)
-21= 21-3x
-21 -21
-42= -3x
(divide by -3)
x= 14
OlgaM077 [116]2 years ago
4 0
The answer is 6


hope this helps !!
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One lap around a dirt track is 1/3 miles. it takes Bryce 1/9 hour to ride one lap. what is bryce's unit rate ,in miles,around th
lana [24]

Answer:

Bryce's speed (slow speed I might add) is   3 miles per hour.

Explanation:

s /d= t

where  

s = speed  d= distance  t  = time.

Solving for   gives:


s = 1/3 / 1/9

s= 9/3

s= 3 miles per hour

3 0
3 years ago
the amusement park charges a fee of $7.50 and $0.75 for every ride. the carnival charges a fee of $10.00 and$0.50 per ride. when
andrew11 [14]
A equation to represent this situation is:

0.75x+7.50=0.50x+10.00

Now we have to find x.

Step 1: Subtract 0.5x from both sides.

<span><span><span><span>0.75x</span>+7.5</span>−<span>0.5x</span></span>=<span><span><span>0.5x</span>+10</span>−<span>0.5x</span></span></span><span><span><span>0.25x</span>+7.5</span>=10

</span>Step 2: Subtract 7.5 from both sides.

0.25x+7.5−7.5=10−7.50.25x=2.5

Step 3: Divide both sides by 0.25.

<span><span><span>0.25x/</span>0.25</span>=<span>2.5/<span>0.25

</span></span></span>Answer:

<span>x=<span>10</span></span>
They will cost the same after 10 rides.


 
3 0
3 years ago
6)2.1 + 18:9<br> What is the answer and the explanation
Lapatulllka [165]
2.1+18.9

The answer is going to be 21 because 9+1=10, you then carry the 1 for 8 so it’s going to be 9+2 which equals to 11 now you carry the 1 to the 1 so it’ll be 2. Therefore it’s 21.0 or just cancel out the 0 and just leave it as 21.
6 0
2 years ago
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Aleksandr-060686 [28]

Answer:

it's 3.4%

Step-by-step explanation:

You take the difference of 362 and 350 (which is 12) and divide it by the starting number (350) getting you 3.4

5 0
2 years ago
Which is a factor of x2 + 8x – 48?
shutvik [7]
Check out the attached file

4 0
3 years ago
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