$16 because when buying a $20 shirt with the discount of 20% it would be 20-4=16
Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (0, 7 ) and (x₂, y₂ ) = (3, 19 )
m =
=
= 4
The line crosses the y- axis at (0, 7 ) ⇒ c = 7
y = 4x + 7 → A
<h2>
It represents that , the amount of money in the bank account is $1680 after 50 months.</h2>
Step-by-step explanation:
Given , the amount of money in a bank account can be represented by the equation A(m) = 30m +180, where A(m) is measured in dollar and m is measured in month.
When A(m) = 1680
1680 = 30m +180
⇔30m = 1680 -180
⇔30m = 1500
⇔
⇔ m = 50
It represents that , the amount of money in the bank account is $1680 after 50 months.
Answer:
The answer to your question is a = 1.1; b = 24
Step-by-step explanation:
Data
Earth's mass = 5.97 x 10²⁴ kg
Venus' mass = 4.87 x 10²⁴ kg
Process
1.- Subtract the Venus' mass to the earth's mass.
5.97
<u> - 4.87</u>
1.1
2.- Write the result in scientific notation
1.1 x 10²⁴ kg
3.- Result
a = 1.1
b = 24
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