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Marysya12 [62]
3 years ago
7

Can someone please help me!!!

Mathematics
1 answer:
Brut [27]3 years ago
5 0
What do you need help with because theres no problem
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A red ballon starts at 7 meters off the ground and rises at 3 meters per second. A ballon starts at 12 meters off the ground and
GrogVix [38]
Let x be the no. of seconds it takes for the balloons to be at the same height.
7+3x = 12+2x
Deduct both sides by 2x.
7+x = 12
Deduct both sides by 7.
x = 5
Ans: It will take 5 seconds for the balloons to be at the same height.
4 0
3 years ago
The temperature dropped 6 °F every hour for 6 hours. What was the total number of degrees the
morpeh [17]

Answer:

This problem is a rate times time problem.  To find the total amount, you must take the rate per unit of time, and multiply it by the given unit of time

Step-by-step explanation:

-5degrees/hr x 6hr=-30 degrees

6 0
3 years ago
Please help me! Screenshot of question is attached. 15 Points and Brainliest to the correct answer.
ehidna [41]

Hello,

I would love to answer but there is no screenshot to see!


7 0
3 years ago
21x =7?<br> A. x=3<br> B. None of these <br> C. x=147<br> D. x=28
Varvara68 [4.7K]

Answer: B

Step-by-step explanation:

To isolate x, you divide both sides by 21

21x=7

\frac{21x}{21}=\frac{7}{21}

x = 7/21

Simplify by dividing both the numerator and denominator by 7

x = 1/3

Since, 1/3 is not an option, B is the correct answer

6 0
2 years ago
If you buy a car for 15500 an average on an average a new car loses 11% of its value the moment that is driven off the lot once
AfilCa [17]

Answer:

$13,795

Step-by-step explanation:

15500/x=100/11

(15500/x)*x=(100/11)*x       - we multiply both sides of the equation by x

15500=9.0909090909091*x       - we divide both sides of the equation by (9.0909090909091) to get x

15500/9.0909090909091=x  

1705=x  

x=1705

now we have:  

11% of 15500=1705

8 0
3 years ago
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