Solving Word Problems and Equations

The video covers several math problems for seventh-grade students. It begins with estimating the weight of six apples using multiplication. Next, it involves selecting stories that can be represented by a tape diagram. Andre's savings plan is discussed, calculating his weekly earnings and donations. The video then compares expressions to find the greatest value and concludes with solving equations involving negative numbers.

If two apples weigh 511 grams, what is the estimated weight of six apples?

• 1022 grams

• 1533 grams

• 2044 grams

• 2555 grams

Which story can be represented by a tape diagram involving 87 items and 39 items?

• 87 children and 39 adults at a show

• 87 first graders with 39 picked up

• 87 pencils with 39 given to a teacher

• 87 spent on tickets and a 39 dinner

How many weeks will it take Andre to save $40 if he donates $2 each week?

• 4 weeks

• 6 weeks

• 3 weeks

• 5 weeks

What does the 'x' represent in Andre's tape diagram?

• The number of weeks

• The total amount saved

• The donation amount

• The weekly payment

Which expression has the greatest value?

• A negative divided by a negative

• A negative plus a negative

• 7 and 5/6 minus 9 and 3/4

• A negative times a positive

What is the result of dividing a negative value by another negative value?

• Zero

• Negative value

• Positive value

• Undefined

What is the result of 8.5 times negative 3?

• -8.5

• 25.5

• -25.5

• 25.5

Solve for b: -7 + b = -11.

• -18

• 18

• 4

• -4

What is the value of c if c minus a negative 3 equals 15?

• 12

• 18

• 15

• 9

If d times -4 equals 32, what is the value of d?

• -32

• 32

• -8

• 8