Answer: 12.
To solve this problem, let's first solve for x. Thi is easiest done by figuring what QR is in terms of x using two equations, both from different lines.
In the first line:
QR = 15 - 4x.
In the third line:
QR = 13x - 1 - x = 12x - 1.
Now, we have to set these equations equal to each other.
15 - 4x = 12x - 1
15 = 16x - 1
16x = 16
x = 1
Next, we take line three, 13x - 1, and substitute x as 1. The answer is 12.

<em><u>Solution:</u></em>
From given question,
Number of pounds Jake carry = 
Number of pounds his father carry is
times as much as jake
To find: Number of pounds Jake father can carry
<em><u>Convert the mixed fractions to improper fractions</u></em>
Multiply the whole number part by the fraction's denominator.
Add that to the numerator.
Then write the result on top of the denominator

<em><u>Then according to question,</u></em>


Answer:
8 hours
Step-by-step explanation:
14 + 3x =38
-14 -14
--------------------
3x = 24
---- ----
3 3
--------------------
x = 8
Answer:
15 5/9 °C
Step-by-step explanation:
Put 60 where F is in the equation and do the arithmetic.
... C = (5/9)(60 -32) = (5/9)(28) = 140/9
... C = (135 +5)/9 = 15 5/9
Answer:
There are 75 total cubes in the box.
Step-by-step explanation:
If 0.4 is 30, then divide 30 by 4 and then multiply that by 3, because that would be the answer for red or yellow, then just multiply 22.5 x 2 to find both red and yellow. Finally, add 30 and 45 for your answer.