For the answer to the two questions above,
3x + 2y = 36.50 (I)
2x + 5y = 50 (II)
Eliminating x from the two equations by subtraction:
first we multiply equation I by 2 and equation II by 3
6x + 4y = 73
6x + 15y = 150
Subtracting the two,
-11y = -77
y = 7
He earns $7 at the coffee cart
Substituting y into equation I,
3x + 14 = 36.5
x = $7.50
So we can conclude that, he earns a greater wage of $7.50 at the library,
Answer
30
steps
area of trapizium is a+b/2 * h.
we have a=14, h=15, area=330 and we need to find b
so, 14+b/2 * 15=330
we divide 15 on both sides so 14+b/2=22
we multiply 2 on both sides so 14+b=44
b=44-14
b=30
Answer:
a is 3,2 b is 1,-2 and c is -2,1
Step-by-step explanation:
u take the first number then you just put em together
This equation is a direct variation. If y increases, x increases. The constant of variation is 4 I think. Hope that helped.