A number, a variable, or group of number and variables that are added, subtracted, multiplied, or divided
Answer:
(2,1)
Step-by-step explanation:
3x+y = 7
-2x +y = -3
Solve the second equation for y by adding 2x to each side
-2x+2x +y = -3+2x
y = -3 +2x
Substitute into the first equation
3x+ (-3+2x) = 7
Combine like terms
5x -3 = 7
Add 3 to each side
5x-3+3 = 7+3
5x = 10
Divide by 5
5x/5 = 10/5
x=2
Now we need to solve for y
y = -3 +2x
y = -3 +2(2)
y = -3+4
y =1
Answer:
£10.50.
Step-by-step explanation:
1/ 4 of 42
= 42/4
= £10.50.
Answer:
How many feet of the floor are you carpeting that is the real question
Step-by-step explanation:
It depends on how many feet you are putting the carpet on.
Answer:
0.4r
Step-by-step explanation:
40% of the price of r dollars
To translate into an expression, we outline te keywords
Percentage of price = 40%
The price in question = $r
Hence, the expression will calculate, 40% of the price
Hence, we'll have :
40% of price
(40 / 100) * r
0.4 * r
= 0.4r
