Answer:
They can make 49 hamburgers
Step-by-step explanation:
Answer:
RQ = 49
Step-by-step explanation:
12/28 = 21/RQ (Ratio of sides of similar triangles are equal)
12 x RQ = 21 x 28
RQ = 588 / 12
RQ = 49
<h3>
Answer: x-2y = -8</h3>
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Explanation:
Multiply both sides by 2 to clear out the fraction
y = (1/2)x+4
2y = 2[ (1/2)x + 4 ]
2y = 2*(1/2)x + 2*4
2y = x + 8
Then move the x term over to the left side
2y = x+8
2y-x = 8
-x+2y = 8
Optionally we can multiply both sides by -1
-x+2y = 8
-1*(-x+2y) = -1*8
x-2y = -8
This is in standard form Ax+By = C with A = 1, B = -2, C = -8
The reason why I multiplied both sides by -1 was to make A > 0 which is what some textbooks use as convention. Of course -x+2y = 8 is equally valid too.
Answer:
x+4=y
Step-by-step explanation:
Answer: D. 4
2 * 4 = 8
1.5 * 4 = 6
