Answer:
I'm sorry I don't know the equation, but she walks 3 mph.
Step-by-step explanation:
We know that the answer is asking for speed, which needs both distance and time, so we also need both. Which is where the 9 mph is used. 9 mph means its a difference. b means biking mph, w means walking mph, sooo ----->>> b=w+9, and the difference in the 1st equation is 36, which means the first equation is 4 times larger than the b=w+9, so she walked 48 miles, as well as walked 12 miles in 4 hours. Divide then distances by 4, and you get 12 miles and 3 miles in one hour. Or 12 mph & 3 mph, which fits into 12=3+9. So she walks 3 miles per hour.
Answer:
min
Step-by-step explanation:
In order to solve this problem, we must subtract the times he has already used from the time he has available, so we get:
we can start solving this subtraction by turning all of the numbers into improper fractions so we get:
next, we can find a least common denominator. In this case it will be 4, so we need to turn all denominators into a 4, so we get:
and now we can subtract the numerators and copy the denominators so we get:
which can now be turned into a mixed number by dividing 47/4 which yields 11 with a remainder of 3, so the mixed number is:
min
and this is the amount of time he has available to solve the las problem.
Answer:
6k 2k-6
Step-by-step explanation:
A) 5 units is the value of a
To find the edge of a cube with 216 volume, you would have to use the following expression: side cubed. To do this, subsitute the values in. Does 1 work? No. Does 2 work? No. Repeat these steps until you get to 6. 6 cubed is 216.
