MATHEMATICS
HIGH SCHOOL

What is m

Answer: M=4

2m-13=-8m+27

+8m to both sides

10m-13=27

+13 to both sides

10m=40

divide by 10 to both

M=4

2m-13=-8m+27

+8m to both sides

10m-13=27

+13 to both sides

10m=40

divide by 10 to both

M=4

MIDDLE SCHOOL

A boy jogs 250 meters in 110 seconds. What is his average speed in m/s?

Answer:

2.72 m/s

Step-by-step explanation:

We are given that

Boy jogs=250 meters

Time taken by boy=110 seconds

We have to find the average speed in m/s

In order to find the average speed then we will divide distance by time

Using the formula then we get

Average speed=

Hence, the average speed=2.72 m/s

MIDDLE SCHOOL

From A complete stop, a car reaches a velocity of 280 km/s east in 7 second what is the rate of acceleration ?

40 km/s. I got this by dividing 280 by 7 to get 40 km/s.

HIGH SCHOOL

A jewelry store purchases a necklace for 150. They markup the necklace 75% how much will the jewelry store sell the necklace for ?

75% off? If so, the necklace is $37.50

MIDDLE SCHOOL

Which of the following is a step in simplifying the expression?

(2-3x4+5)^2 Everything in parenthesis first, and in the parenthesis, multiply first, so:

(2-12+5)^2 Now add within the parenthesis:

(2-7)^2 And subtract:

(-5)^2 Parenthesis are solved, now you can do the exponent:

25 is the answer.

(2-12+5)^2 Now add within the parenthesis:

(2-7)^2 And subtract:

(-5)^2 Parenthesis are solved, now you can do the exponent:

25 is the answer.