Danielle needs to walk 4 miles. if she wants to reach her destination in 50 minutes ( hour), how fast does she need to walk? a.200 miles per hour b.4.8 miles per hour c.12.5 miles per hour d.3.3 miles per hour

B. 4.8 miles per hour

Step-by-step explanation:

We are given that,

Distance needed to walk by Danielle = 4 miles

Time needed to reach the destination = 50 minutes = 0.83 miles

It is required to find the speed needed by Danielle.

Since, we know,

i.e.

i.e. Speed = 4.8 miles per hour

Hence, she needs to walk 4.8 miles per hour to reach her destination.

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.