Answer:
mi = 45(hr)
hr = mi/45
Step-by-step explanation:
Distance = 45 mph times the number of hours (time) D = 45t
time in hours = the number of miles (Distance) divided by 45 mph t = D/45
Answer: 90%
Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.
So to write 9/10 as a percent, we need to find a fraction
equivalent to 9/10 that has a 100 in the denominator.
We can do this by setting up a proportion.
So we have
.
Now, we can use cross-products to find the missing value.
So we have (9)(100) which is 900 <em>is equal</em> to (10)(n) or 10n.
So we have 900 = 10n.
Next, dividing both sides of the equation by 10, we have <em>90 = n</em>.
So, 9/10 is equal to 90/100 or 90%.
Answer:
Step-by-step explanation:
x - 3y -15
x = -3
Hello :
g(-1) = (-1)² -7(-1)-9 =1+7-9 = -1
<span>f(g(−1)) = f(-1) = -1-2 = -3.....( answer : B)</span>