Question

Hello there are 4 questions in this it will look like a lot but it is not and you don't have to answer all of it just look at the answers already hear and do another question if another one is already answered

Which of the following values for x and y make the equation 4x + 2y + 3 = 19 true?

x = 5, y = 3
x = 4, y = 5
x = 3, y = 2
x = 2, y = 5
Question 3(Multiple Choice Worth 4 points)
(07.01)
Which of the values in the set {3, 4, 5, 6} is a solution to the equation 4x + 2 = 22?

3
4
5
6
Question 4(Multiple Choice Worth 4 points)
(07.01)
Fred is trying to earn $35 to buy a basketball. He has saved $11.25. He earns $2.25 per hour doing yard work for his neighbor, and he earns $7.25 per hour selling sunglasses at the mall. Will Fred have enough to buy the basketball if he works in the yard for 2 hours and at the mall for 3 hours? Use the inequality 2.25y + 7.25z + 11.25 ≥ 35.

No, because the total will be $58.75.
No, because the total will be $21.25.
Yes, because the total will be $37.50.
Yes, because the total will be $26.25.
Question 5(Multiple Choice Worth 4 points)
(07.01)
Which of the following sets shows all the numbers from the set {0, 0.5, 1, 2.5, 3} that make the inequality 2a + 3 ≥ 8 true?

Answer 1

First one: x = 3, and y = 2

Second: 5

Third: Yes because he will have $37.50

Fourth: The numbers 2.5 and 3 will make it true

Explanation:

1. 4(3) + 2(2) + 3 = 12 + 4 + 3 = 19

2. 4x + 2 = 22, 4x = 20, x = 5

3. 2.25y + 7.25z + 11.25, 2.25(2) + 7.25(3) + 11.25 = 4.5 + 21.75 + 11.25 = 37.5

He will get $37.50, which is enough.

4. The numbers 2.5 and 3 will make it true: 2(2.5) + 3 = 5 + 3 = 8, 2(3) + 3 = 6 + 3 = 9, the numbers below it won't make it true.