Answer:
subtract 2.5 on both sides
Answer:
135
Step-by-step explanation:
The supplement of an angle is 80° less than three times the measure of the complement of the angle find the measure of the supplement of the angle
Two Angles are Supplementary when they add up to 180 degrees.
Two Angles are Complementary when they add up to 90 degrees
Let the angle = x
Supplement of the angle = y
The supplement of an angle is 80° less than three times the measure of the complement of the angle find the measure of the supplement of the angle
x - 180 = 3(x - 90)
x - 180 = 3x - 270
Collect like terms
3x - x = 270 - 180
2x = 90
x = 90/2
x = 45
x+ y = 180
45 + y = 180
y = 180 -45
y = 135
X varies directly as y would be

x vairies inversly as y would be

not sure if the y is on the bottom or on top from looking at the question
Answer:
5yrs or 1825 days
Step-by-step explanation:
Given the total amount of the investment after n-days at 9% is $2,320 and the principal amount invested is $1,600
-Let P be the principal amount, A be the total amount of the investment.
-We calculate the number of days using simple interest formula.
#Calculate the total interest earned on the investment:

Simple interest is calculated using the formula:

Hence, it takes 1,825 days to achieve your investment goals
Answer:
$ 0.34 or 34 cents
Step-by-step explanation:
Bill amount = $31.18
sales tax = 6% of $31.18
= 0.06 ($31.18)
= $1.8708
Bill with tax = $31.18+$1.8708
= $33.0508
value of tip = 20% of 33.0508
= 6.61016
Total payment = 33.0508+ 6.61016
= $39.66096
or $39.66
We get change of $40 - $39.66
= $ 0.34
We shall get back in cents that will be 34 cents