What is -4x+8=48 what is x
2 answers:
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Answer:
11
Step-by-step explanation:
Here the given function,
By substituting t = 7 in the above equation,
We get,
( By multiplication )
( By subtraction )
Hence, the value of f(7) is 11 for the given function.
8) 12 is 30% of some number, which we'll call x. We can write the percent as a decimal and solve for x
.
The answer is 40.
9) 45% of 20 is
.
The answer is 9.
10) 18 is
% of 30.
The answer is 60%.
11) 56 is 80% of some number x. We write
.
The answer is 70.
12) If the total cost on an item that costs $4.00 is $4.32, then the tax is 32¢. We want to find the percent of the total 4 that is .32.
%.
The answer is 8%.
The answer is 40.
9) 45% of 20 is
The answer is 9.
10) 18 is
The answer is 60%.
11) 56 is 80% of some number x. We write
The answer is 70.
12) If the total cost on an item that costs $4.00 is $4.32, then the tax is 32¢. We want to find the percent of the total 4 that is .32.
The answer is 8%.
Answer:
y = 2x + 5
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 ) = B(- 3, - 1 ) and (x₂, y₂ ) = A (1, 7)
m = =
= 2 , then
y = 2x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (1, 7 ) , then
7 = 2 + c ⇒ c = 7 - 2 = 5
y = 2x + 5 ← equation of line