The y intercept of this line is -9
S=number of swim lessons
A.) The equation is 237 = 402-15s
237 = 402 - 15s
-402 = -402
-165 = -15s
/-15= /-15
11 = s
B.) 11 swim lessons.
C.) 0 = 237 - 19s
-237= -237
-237 = -19s
/-19 = /-19
12.47368 = s
She can pay for 12 more swim lessons and will have some money left in her account.
Answer:
(9x+3)
Step-by-step explanation:
9514 1404 393
Answer:
x = 40
∠6 = 120
Step-by-step explanation:
This question has nothing to do with parallel lines.
Angles 5 and 6 form a linear pair, so are supplementary.
∠6 + ∠5 = 180°
3x +60 = 180
3x = 120 . . . . . . . . . subtract 60
x = 40 . . . . . . . . . . . divide by 3
Angle 6 is the supplement of angle 5 as shown above.
∠6 = 3x = 120
Answer:

Step-by-step explanation:
To use the SAS similarity theorem, you must show proportionality between corresponding sides, and congruence of the angle between them.
The answer shown above is the only answer choice that mentions an angle.
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<em>Comment on other choices</em>
Choice B shows the three sides are proportional, so would be useful if the SSS similarity theorem were to be invoked. It isn't helpful for the using the SAS similarity theorem.
Choices C and D get the proportion statements wrong.