Question

Which equation best represents the situation?

A teacher prepared math problems for students to solve in groups. She split her class into 4 groups. Each group got an equal number of problems. After distributing them, there were 2 left over. Group A completed their problems plus 2 extras (30 problems). How many problems did the teacher originally prepare?

Answer 1

isit 4x+2=30?

Answer 2

30 is the amount Group A completed, not the total number of problems for all groups

Answer 3

do you have choices?

Answer 4

yes

Answer 5

x/4 +2 =30, x/2-4=30, 2x-4=30 and the one i said i thought it was

Answer 6

the first one makes more sense

Answer 7

x/4 +2 =30 this one? @AriPotta

Answer 8

yea

Answer 9

i got 1 more @AriPotta

Answer 10

Which inequality best represents the situation?

A pine tree grows at a rate of 1.5 feet per year. James plants a 2-foot tall pine tree in his yard. How many years will it take for the tree to be at least 14 feet tall?









A.

2x + 1.5 ≥ 14








B.

2x – 1.5 ≤ 14








C.

1.5x + 2 ≥ 14








D.

1.5x – 2 ≤ 14

@AriPotta

Answer 11

so x is the amount of years. 1.5 is the ft per yr. so 1.5x would be the amount of ft the tree grew in x yrs. once we add 2, it'll give us the amount of ft tall it is after x yrs. so 1.5x + 2 and "at least 14 ft tall" means greater than or equal to. so \[1.5x + 2\ge14\]

Answer 12

did that make sense?

Answer 13

yup

Answer 14

cool

Answer 15

You want to know more about Dante's homework. Which situation about his homework best represents the inequality 3x + 12 ≤ 48?









A.

Dante spends 12 minutes reading the lesson and 3 minutes completing each math problem. How many problems can he finish in 48 minutes?








B.

Dante spends 12 minutes completing each math problem and 3 minutes reading the lesson. How many problems can he finish in 48 minutes?








C.

Dante spends 12 minutes on his math homework and 3 minutes to complete each problem. How long does it take him to finish 48 problems?








D.

Dante completes 12 math problems and reads 3 pages in his math book. How many problems can he finish in 48 minutes?

@AriPotta

Answer 16

i think a