Step-by-step explanation:
we can write the expression x+28
and jamal's uncle is two times his mother age means (28)2
so jamal's uncle is 56 years old
Answer:
WEll the answer is d
Step-by-step explanation:
The first (80%) mortgage has an interest rate of 4.75%, and the second (20%) mortgage has an interest rate of 7.525%. Both are 30-year fixed-rate mortgages.
Answer:
width: 5.5 yd; length: 8 yd
Step-by-step explanation:
Let w represent the width of the rectangle in yards. Then 2w-3 is the length and the area is the product of length and width:
w(2w-3) = 44
2w^2 -3w -44 = 0 . . . . put the equation into standard form
(w+4)(2w -11) = 0 . . . . . factor the equation
w = -4 or 11/2 . . . . . . . . the negative solution is extraneous
Then the length is 2·(11/2) -3 = 8.
The width of the rectangle is 5.5 yards; the length is 8 yards.
Answer:

Step-by-step explanation:
Hello, let's note v the rate of the boat and r the rate of the current. We can write the following

It means that

But we can as well use the second equation:

and then

Hope this helps.
Do not hesitate if you need further explanation.
Thank you