Haley asked 50 students in her school which after-school sport they prefer. Type of Sport Number of Students
baseball
12
soccer
18
basketball
Which decimal represents the number of students who prefer soccer?
20
A. 0.18
B. 0.24
C. 0.36
D. 0.4

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

i suppose it should be (y=2x-5)

step-by-step explanation: