Plz help Jon and Kristen are both increasing the number of minutes they jog each day, as shown in the tables. Jon

Day Minutes

0 15

1 17

2 19

3 21

Kristen

Day Minutes

0 22

1 23

2 24

3 25

Which system of linear equations could be used to determine which day they will jog for the same number of minutes, where d represents the day and m represents the number of minutes?

A.

m = 15d + 1

m = 22d + 2

B.

m = d + 15

m = 2d + 22

C.

m = 2d + 15

m = d + 22

D.

m = 15d + 2

m = 22d + 1

step-by-step explanation:

the first 5 right here the next 5 i will upload as separate question

answer:

125 yards

explanation:

75+50=125. that is my answer

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240