Answer:
398-cent stamp for postage.
Step-by-step explanation:
For one letter, Travis needs 37-cent stamp
For four letters, Travis needs 37-cent stamp x 4 letters
= 148-cent
Again,
For one postcard, he needs 25-cent stamp
For ten postcards, he needs 25-cent stamp x 10 postcards
= 250-cent
Therefore, he will spend = (148-cent + 250-cent) = 398-cent stamp for postage.
Answer:
The constant of Proportionality is 1.
Step-by-step explanation:
Both x & y go up by 1. They are also always the same number. Therefore the constant of Proportionality is 1.
Answer:
x=19/3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(x+5)=2(3x−2)
3x+15=6x+−4
3x+15=6x−4
Step 2: Subtract 6x from both sides.
3x+15−6x=6x−4−6x
−3x+15=−4
Step 3: Subtract 15 from both sides.
−3x+15−15=−4−15
−3x=−19
Step 4: Divide both sides by -3.
−3x
−3
=−19−3
x=19/3
The answer is a scale factor
Answer: -a (4th choice)
Explanation:
Consider an example like y = 2(x-3)^2 and compare it to y = -2(x-3)^2
The jump from a = 2 to a = -2 means we reflect over the x axis. This is because we're effectively multiplying the y coordinate values by -1. So a point like (5,8) moves to (5,-8).