Answer:
the leangth in 76.2
Step-by-step explanation:
76.2 cm are in 30 inches
Answer:
Number = 12
Step-by-step explanation:
2n-7=n+5 (+7 to both sides)
2n=n+12 (-n to both sides)
n=12
Answer:
132
Step-by-step explanation:
The exterior angle in a triangle is equal to the sum of the 2 opposite interior angles
n is an exterior angle, hence
n = 90 + 42 ← 2 opposite interior angles
n = 132°
The second one is correct
9513 1404 393
Answer:
- changes by 120 for each copy
- is 1800 if none are sold
Step-by-step explanation:
Let's look at the second question first.
x is the number of copies Chau sells. If he doesn't sell any copies, then x = 0. To find Chau's pay, we use x=0 in the equation, and solve for y.
120×0 +1800 = y
0 +1800 = y
1800 = y
Chau's pay when he sells no copies is $1800.
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If Chau sells 1 copy, then his pay is ...
120×1 +1800 = y = 1920 . . . . . . . use the equation with x = 1
The increase in Chau's pay is 1920 -1800 = 120.
Chau's pay changes by $120 for each copy he sells.
