4x = -36 Subtract 10 from both sides
x = -9 Divide by 4 on both sides
Answer:
15 scores are less than 90
Step-by-step explanation:
Total 11 scores are less than 90 not 15
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Answer:
y=3x=4x
Step-by-step explanation:
4x-50
For the X intercept you set y = 0 and solve for x
Y =

x + 9
0=

x + 9 subtract 9 from both sides
-9 =

divide both sides by 3
-3 = -8x divide both sides by -8

= x
X-intercept = (

, 0)