Hello There!
<h2>
EQUATION 15+M=35</h2><h2>
</h2><h2>M = 20 MILES</h2>
Answer:
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Step-by-step explanation:
X=7
10x-2=9x+5
X=7
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We have 2x + 4x + 5x = 33 so 11x = 33 and x 3.
The children are 6, 12 and 15
Answer:
Mass of A = 5760 grams
Step-by-step explanation:
Surface area is given, so we can set-up a similarity equation to solve for k, proportionality constant. Here, we will relate both of them through k^2, because they are 2 dimensional (area). Thus
Surface Area of A = k^2 * Surface Area of B
28 = k^2 * 40.32
k^2 = 28/40.32
k^2 = 25/36
k = Sqrt (25/36)
k = 5/6
Now, we want to find mass (1 dimensional quantity), thus we can say:
Mass of A = k * Mass of B
Mass of A = (5/6) * (6912)
Mass of A = 5760 grams