We know that distance = rate(time). We need to solve for time here.
![d = rt\\90 = 45t\\t = \frac{90}{45}\\t = 2](https://tex.z-dn.net/?f=d%20%3D%20rt%5C%5C90%20%3D%2045t%5C%5Ct%20%3D%20%5Cfrac%7B90%7D%7B45%7D%5C%5Ct%20%3D%202)
The car took 2 hours to travel 90 miles at a speed of 45 mi/hr
Answer:
<h3> The numbers are 20 and 28</h3>
Step-by-step explanation:
x - the other number (the smaller one)
x+8 - 8 more than the other number (the larger number)
![\dfrac{x+8}x=\dfrac75\\\\(x+8)\cdot5=x\cdot7\\\\5x+40=7x\\^{\quad-40\qquad-40}\\{}\quad5x = 7x-40\\^{\quad-7x\quad-7x}\\-2x=-40\\^{\div(-2)\quad\div(-2)}\\{}\ \ x=20\\\\x+8=28](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%2B8%7Dx%3D%5Cdfrac75%5C%5C%5C%5C%28x%2B8%29%5Ccdot5%3Dx%5Ccdot7%5C%5C%5C%5C5x%2B40%3D7x%5C%5C%5E%7B%5Cquad-40%5Cqquad-40%7D%5C%5C%7B%7D%5Cquad5x%20%3D%207x-40%5C%5C%5E%7B%5Cquad-7x%5Cquad-7x%7D%5C%5C-2x%3D-40%5C%5C%5E%7B%5Cdiv%28-2%29%5Cquad%5Cdiv%28-2%29%7D%5C%5C%7B%7D%5C%20%5C%20x%3D20%5C%5C%5C%5Cx%2B8%3D28)
Answer:
Step-by-step explanation:
32
Answer:
32.2 is your answer for c
Step-by-step explanation:
Note the equation:
c - 23.7 = 8.5
Note the equal sign. What you do to one side, you do to the other. Isolate the c. add 23.7 to both sides
c - 23.7 (+23.7) = 8.5 (+23.7)
c = 8.5 + 23.7
Simplify.
c = 32.2
32.2 is your answer for c
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