Your answer would be 15.6
Yeah I think x=12y on this one correct me if I’m wrong
Answer:
Part 1) 1,560 words
Part 2) 161 miles
Step-by-step explanation:
Part 1) 130 words in 5 mins. How many words in an hour?
Remember that

so
using proportion
Find out how many words in 60 minutes (one hour)

Part 2) 322 miles in 2 hours. How many miles in 60 minutes?
Remember that

so

using proportion
Find out how many miles in 60 minutes

I think the answer is plus bc you need to add
Remember that to find the zeroes of a quadratic expression of the form

we could either factor it or use the quadratic formula. When

, like in our case, is often way easier and faster factor the expression than using the quadratic formula. The only thing we need to do to factor the expression is find tow number whose product is 48 and its sum is 14; those numbers are 6 and 8.

and

. Now we can factor our quadratic like follows:

Since we are trying to find the zeroes of the function, we are going to set each one of our factored binomial equal to zero and solve for x:


and


We can conclude that the zeroes of the function

are

and

.