Lindsay practices the guitar 50 minutes on Saturday and 30 minutes on most weekdays. Last week she practiced 140 minutes. How many weekdays did she practice? Write an equation in the form px+q=r to represent this problem.(2 points)

Question

x + =

Answer 1

Let the number of weekdays Lindsay practiced be represented by x.

She practices for 50 minutes on Saturday, which can be represented as 1 * 50 = 50.

She practices for 30 minutes on most weekdays, which can be represented as x * 30.

So, the total amount of time she practices during the weekdays is 30x.

The equation in the form px + q = r to represent this problem is 50 + 30x = 140.

Answer 2

A baby elephant weighs 150 pounds when born. It gains 2 pounds per day during the first year. How many days will it take the elephant to weigh a total of 224 pounds?(1 point)

Answer 3

Let the number of days it takes the elephant to weigh a total of 224 pounds be represented by d.

The baby elephant weighs 150 pounds when born.

In the first year, it gains 2 pounds per day, so in d days it would gain 2d pounds.

Therefore, the equation to represent this problem is 150 + 2d = 224.

Answer 4

Reann has stickers. She gives her friend half, and then her brother gives her 8 new ones. She ends up with 12 stickers. How many did she start with? Identify the operations needed to solve this problem.(1 point)
Responses

subtraction and multiplication
subtraction and multiplication

subtraction and division
subtraction and division

addition and division
addition and division

addition and multiplication

Answer 5

The operations needed to solve this problem are subtraction and addition.

First, Reann gives half of her stickers to her friend. This can be represented as Reann's initial number of stickers (let's call it x) minus (x/2).

Then, her brother gives her 8 new stickers, so she now has (x/2) + 8 stickers.

Finally, Reann ends up with 12 stickers, so we can set up the equation:

(x/2) + 8 = 12

To solve this equation, we will need to use subtraction and addition.