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Nitella [24]
3 years ago
7

Deandra is doing her math homework. Out of 24 problems total, she completed the first 12 problems in 1 hour and the last 12 prob

lems in 3 hours. What is the unit rate for all 24 problems?
Mathematics
2 answers:
Travka [436]3 years ago
8 0
To find unit rate for all 24 problems.  
12 problems completed in 1 hour = 12 in 60 minutes
 Last 12 problems in 3 hours = 12 in 180 minutes
 Total 24 in (180+60= 240) minutes
 Time taken to solve one problem = 240/24 = 10 minutes. 
 This means Deandra on an average took 10 minutes to solve each problem.
AlladinOne [14]3 years ago
4 0

If you divide 12 by 3 the correct answer should be 4 problems per hour.

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Papessa [141]

Answer:

x·0.29

Step-by-step explanation:

I got this answer by making a variable, x, for the number of bananas you are buying. You can use this expression for whatever number of bananas you want and it will work.

6 0
4 years ago
Tasha spent 55 hours in 2 weeks working on a science project. She worked 32 hours the first week. Write and solve an addition eq
blondinia [14]

Answer:

55 = 32 + x

55-32 = x

x =23

3 0
3 years ago
HELLER HELLPPPP MEHHHH
ivolga24 [154]

Answer:

I think the answer is D.

Step-by-step explanation:

Five plus two times a number means 5 + 2n vice versa.

4 0
3 years ago
Read 2 more answers
What is the value of x in the equation ?2.5(6x-4)=10 4(1.5 0.5x)
MA_775_DIABLO [31]
<span>2.5<span>(<span><span>6x</span>−4</span>)</span></span>=<span><span><span><span><span>(10)</span><span>(4)</span></span><span>(1.5)</span></span><span>(0.5)</span></span><span>x

</span></span><span><span><span><span>(2.5)</span><span>(<span>6x</span>)</span></span>+<span><span>(2.5)</span><span>(<span>−4</span>)</span></span></span>=<span><span><span><span><span>(10)</span><span>(4)</span></span><span>(1.5)</span></span><span>(0.5)</span></span>x</span></span>(Distribute)<span><span><span><span>15x</span>+</span>−10</span>=<span>30x
</span></span><span><span><span>15x</span>−10</span>=<span>30<span>x


</span></span></span><span><span><span><span>15x</span>−10</span>−<span>30x</span></span>=<span><span>30x</span>−<span>30x</span></span></span><span><span><span>−<span>15x</span></span>−10</span>=<span>0

</span></span><span><span><span><span>−<span>15x</span></span>−10</span>+10</span>=<span>0+10</span></span><span><span>−<span>15x</span></span>=<span>10
</span></span><span><span><span>−<span>15x</span></span><span>−15</span></span>=<span>10<span>−15</span></span></span><span>x=<span><span>−2</span><span>3
</span></span></span>Answer:<span>x=<span><span>−2</span><span>3</span></span></span>

<span>

</span><span>


</span>
3 0
3 years ago
-13 times the difference between a number and 60 is equal to the number plus -59
kipiarov [429]
Let n represent the number.
  -13×(n -60) = n +(-59)
  -13n +780 = n -59
  839 = 14n
  839/14 = n = 59 13/14

The number is 59 13/14.

_____
Check
  The difference between the number and 60 is
    59 13/14 -60 = -1/14
  -13 times that value is
    -13*(-1/14) = 13/14
  Compare that to the number plus -59
    59 13/14 -59 = 13/14 . . . . . the same value, as required.
8 0
4 years ago
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