Answer:
- The quadrilateral is a rectangle
Step-by-step explanation:
Given,
Now,
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The answer is 14 because they already give you x
Factor:=
(x + 3)(x - 2) = 0
either x+3 = 0 or (x-2)=0
so x = -3 or 2
correct choice is C
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Answer:
5. Katelyn worked 11 hours at the grocery store.
6. 5pounds of steak
Step-by-step explanation:
5. let x hrs be the no. of hours Katelyn worked at the grocery store.
amnt of money she earnt = 9x + (15-x)×15
= 9x -15x + 225
= -6x + 225
-6x + 225 = 159
6x = 225-159
6x= 66
x= 11
Katelyn worked 11 hours at the grocery store.
6. Let x be the pounds of steak he purchased.
total paid= 13.50x + (8-x)×3.25
= 13.50x -3.25x +26
= 10.25x +26
10.25x+ 26=77.25
10.25x = 77.25-26
10.25x= 51.25
x=5
try using the same method for qn 7 too