4k-7=2k+3
-2k. -2k
2k-7=3
+7. +7
2k=10
2÷2 2÷10
k=5
4(5)-7=13
Answer D
Answer:
Step-by-step explanation:
rewrite you problem with the number as x
22(11) + 10 numbers next to eachother mean to multiply
242 + 10
252
Answer:
100
Step-by-step explanation:
Answer: ![\frac{10}{r+5}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7Br%2B5%7D)
The perimeter of a rectangle is given by the following formula:
(1)
Where
is the width of the rectangle and
its length.
According to the image:
(2)
(3)
So, if we want to find an expression for the perimeter, we have to substitute equations (2) and (3) in (1):
(4)
Solving and simplifying:
>>>This is the expression
Therefore, the correct answer is option B.
Answer:
False
Step-by-step explanation:
2 + 3x = 5
Put x as 1.1.
2 + 3(1.1) = 5
2 + 3.3 = 5
5.3 = 5
False.