Answer:
The value of x is 3.
Step-by-step explanation:
Matthew earned 7500 of 15000, which is exactly half the total amount, meaning that the fraction corresponding to his earnings is 1/2.
Rate of 5:2:x, with number 5 corresponding to Matthew, mean that his fraction of the earnings, in function of x is given by:

Both fractions are equal, so:

Applying cross multiplication:



The value of x is 3.
Answer:
15
Step-by-step explanation:
hope this helps
Knowing that A=lw;
We know that the length and width are multiplied together to give the area; since we are given 2 exactly same terms multiplied together, we can assume that one of them is the base.
Therefore, the base expression would be (4x+16).
Hope I helped :)
Let first mechanic worked for X and second be Y.
So, X + Y = 25
X = 25-Y
And total they charged-
45X + 55Y = 1175
5 (9X + 11Y) = 235 * 5
(9X + 11Y) = 235
11Y = 235-9X
From fist statement: X=25-Y
11Y = 235-9(25-Y)
11Y = 235-225+9Y
11Y = 10+9Y
11Y - 9Y = 10
2Y = 10
Y= 10/2
Y=5 hours
X=25-Y
X=25-5
X=20
X worked for 20 hours and Y for 5 hours.
PS. Moral of the story- You can say Y was lazy but still charged more than Y. Just kidding!
Disturb -4 into the parentheses
-24x-12=-12
add 12 both sides
-24x=0
divide-24 both sides
x=0