Kyote Practice #17

A student has a mean score of 80 on three tests. If her scores on the first tests are 82 and 80, what is her score on the third test?

• 78

• 79

• 76

• 77

• 72

Solve .2x+3.5=2.5

• -10

• -5

• -.2

• 30

• -20

If x is invested in an account earning 3 percent annual interest and y dollars is invested in an account earning 6 percent interest, then which of the following expressions represents the annual interest earned, in dollars, on both accounts combined after one year?

• .3x+.6y

• 9xy

• .09(x+y)

• 3x+6y

• .03x+.06y

Simplify 5-(3-5)

• 10

• -6

• -10

• 7

• -8

How many seconds in 5/12 of an hour?

• 150

• 15

• 25

• 250

• 1500

Which of the following is equivalent to -3x<8?

• x<-3/8

• x>3/8

• x<8/3

• x>-8/3

• x>8/3

Solve 7x-5=7-3x

• 1

• 6/5

• -6/5

• 3

• 6

What is .4% of 600

• 2.4

• 240

• .24

• 24

• 2400

Which of the following is an equation of the line with a slope of 2 that passes through the point (2,-3)?

• y=2x-5

• y=2x-7

• y=2x-1

• y=2x-11

• y=2x+11

Find the value of -x+(y+1)² when x=-5 and y=1

• 3

• -9

• -12

• 9

• 12