Answer:
x = 6
Step-by-step explanation:
Substitute y = - 4 into the equation and solve for x
6x + 7(- 4) = 4x + 4(- 4) ← evaluate
6x - 28 = 4x - 16 ( subtract 4x from both sides )
2x - 28 = - 16 ( add 28 to both sides )
2x = 12 ( divide both sides by 2 )
x = 6
Answer: <em>w = 125</em>
Explanation: Since <em>w</em> is being divided by 5, to solve for <em>w</em>,
multiply both sides of the equation by 5.
On the left side, the 5's will cancel
and on the right side, 25(5) is 125.
So <em>w = 125</em>.
<u />
<u>Please do not do this problem in your head.</u>
Show the work that it takes to get <em>w</em> by itself.
Answer:
x = 2 and y = 5
Step-by-step explanation:
Given equations are :
y-x = 3 ......(1)
xy = 10 or
x = (10/y) ....(2)
Put the value of x in equation (1).
Put the value of y in equation (2).
So, the value of x is equal to 2 and that of y is equal to 5.
Answer:
4600 milliwatts
Step-by-step explanation:
1 deciwatt = 100 milliwatts
1 * 46 = 46
100 * 46 = 4600
46 deciwatts = 4600 milliwatts
Answer:
Eli is now 10
Step-by-step explanation:
If Eli's age is x, his father's age is 4x. In five year time Eli will be (x+5) and his father (4x+5) and at that time his father is three times his age. The equation is 3(x+5)=(4x+5) which solve to x=10, so Eli is now 10 years.
