Abu X + 5
Razak 2x + 10
Ahmad X
Together 4x + 15
175 - 15 = 160
160 / 4 = 40
X = 40
Answer:
yeah i did kenn
Step-by-step explanation:
hi
1
Mel purchased 5 shirts and Joe purchased 2 shirts.
<span>Let x = the width
:
It says,"The length of a rectangle is 4 less than 3 times the width." write that as:
L = 3x - 4
:
If the perimeter is 40, find the dimensions of the rectangle.
:
We know: 2L + 2W = 40
:
Substitute (3x-4) for L and x for W
2(3x-4) + 2x = 40
:
6x - 8 + 2x = 40; Multiplied what's inside the brackets
:
6x + 2x = 40 + 8; do some basic algebra to find x; (added 8 to both sides)
:
8x = 48
:
x = 48/8
:
x = 6 which is the width
:
It said that L = 3x - 4, therefore:
L = 3(6) - 4
L = 18 - 4
L = 14; is the length
:
Check our solutions in the perimeter:
2(14) + 2(6) =
28 + 12 = 40</span>
Answer:
1. Not a function
2. function
3. function
4. not a function
5. function
6. function
7. not a function
8. not a function
9. function
10. not a function
11. function
12. function
13. not a function
14. function
15. function
16. not a function
17. not a function
18. Function
19. I can't see it properally sorry
20. Function
This took a long time to write -_-
Step-by-step explanation:
