Answer:
a=14
Step-by-step explanation:
cross multiply using the butterfly method
7a=98
then divide by 7
Answer: 12 donuts
Step-by-step explanation:
1/4 of 48 is 12 so multiply that by 3 to get 36 then take 48 and subtract 36 and it leaves 12
Answer:
1 : 5
Step-by-step explanation:
A scale drawing is a reduced form in terms of dimensions of an original image / building / object
the scale drawing is usually reduced at a constant dimension
scale of the drawing = original dimensions / dimensions of the scale drawing
40 / 8 = 1m : 5cm
The rate of change is 8/7
The best pricing decision that is made is to sell each unit for $3.
<h3>How to calculate the price?</h3>
From the information given, the revenue will be:
= Customer × Charge
= 16 × 10
= 160
Based on the information given, the equation will be:
(10 + x)(16 - 2x) ≥ 130
160 - 20x + 16x - 2x² ≥ 130
-2x² - 4x + 30 ≥ 0
x² + 2x -15 ≤ 0
(x+1)² ≤ 4²
x+1 ≤ 4
x ≤ 3
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