Answer:
6.5
Step-by-step explanation:
5x + 7x = 78$
7 + 5 = 12
78 divided by 12 is 6.5
x = 6.5
7 x 6.5 is 45.5
6.5 x 5 is 32.5
45.5 + 32.5 = 78$
<span>When given 3 triangle sides, to determine if the triangle is acute, right or obtuse:1) Square all 3 sides.36, 27, 61
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1,296, </span></span></span>
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729, </span></span></span>
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3,721
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<span><span>2) Sum the squares of the 2 shortest sides.1,296 + 729 = 2,025
3) Compare this sum to the square of the 3rd side.2,025 < 3,721
if sum > 3rd side² Acute Triangleif sum = 3rd side² Right Triangleif sum < 3rd side² Obtuse TriangleTherefore, it is an Obtuse TriangleSource:http://www.1728.org/triantest.htm
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The equation for maximum number of days (x) Zoey can afford to rent while saving within her budget is 350 > 20 + 42.72x
The given parameters;
cost per day = $42.72
cost per mile, = $0.10
distance planned by Zoey = 200 miles
maximum amount to be spent by Zoey = $350
The maximum number of days (x) Zoey can afford to rent while saving within her budget is calculated as follow;
<em>Total expenses should be less than her maximum budget</em>
<em />
200(0.1) + 42.72x ∠ 350
20 + 42.72x ∠ 350
The above equation can also be written as; 350 > 20 + 42.72x
Thus, the equation for maximum number of days (x) Zoey can afford to rent while saving within her budget is 350 > 20 + 42.72x
Learn more here: brainly.com/question/17795704