Answer:
y=7-
Step-by-step explanation:
15x+8y=56
Note: you need to get <em>y</em> by itself.
First subtract 15x from both sides
8y=56-15x
Now divide both sides by 8
y=7-
Answer:
that looks correct but if not it would be B
Step-by-step explanation:
The first and the third statements describe Jan's situation.
Answer:
x = 37/13
Step-by-step explanation:
26x=74
x=74/26
x=37/13
Let s represent the measure of the second angle.
The measure of the first angle is 15° less than the second, so we can represent the first angle by (s-15).
The measure of the third angle is 45° more than half the second, so we can represent the third angle by (45+(s/2)).
The sum of these angles is 180°, so we can represent the sum as
... (s-15) + s + (45+s/2) = 180
Collecting terms, we have
... 2.5s +30 = 180
... 2.5s = 150 . . . . . . subtract 30
... s = 150/2.5 = 60 . . . . divide by the coefficient of s
The first angle is 60-15 = 45.
The second angle is 60.
The third angle is 45+60/2 = 75.
_____
<u>Check</u>
The sum of the three angles is 45 +60 +75 = 180.
