Answer:
The value of 7u + 2 is 9.
Step-by-step explanation:
To solve this problem, we first must find the value of u given the second equation. The first step in simplifying this equation is to subtract 8 from both sides of the equation. This is modeled below:
-2u + 8 = 6
-2u + 8 - 8 = 6 -8
-2u = -2
Next, we can divide both sides by -2 to get the variable u alone on the left side of the equation.
-2u/-2 = -2/-2
u = 1
Therefore, the correct answer is u = 1. Now, we can plug in this value for u into the expression that is given.
7u + 2
= 7(1) + 2
= 9
Thus, the correct answer is 9.
Hope this helps!
It should be 3 do you understand?
Answer:
y = 2x + 14
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask ;)
Answer= 16
Work=
1. Multiply each side by 1/5 (aka divide them by 5). This leaves 3, 4 and 9.
2. Add all the sides. 3 + 4 + 9 = 16. That is the perimeter
If Barbara has $ 70.00 in her pocket and a $ 20 gift card. then the maximumm amount she can pruchase is $ 70 + $ 20 = $ 90
so let x be purchase will she be able to make without having to use her credit card
x >= $ 90