Answer:
x=-5.5
Step-by-step explanation:
-3(x+4)=(-x-1)
1. Distribute
-3x+(-12)=-x-1
2. Simplify
-3x-12=-x-1
-2x-12=-1
-2x=11
x=-11/2
x=-5.5
Answer:
-11/2 or 5.5
Step-by-step explanation:
Answer:wg
Step-by-step explanation:
wg
Answer:
Between 6 am and 9 am
Step-by-step explanation:
Answer:
Step-by-step explanation:
leave a rating pls :)
The cost of the sweater is given by the equation A = $ 40.69
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total cost of the sweater be represented as A
Now , the equation will be
The cost of sweater without discount and sales tax = $ 47.99
The discount percentage = 20 %
The cost of sweater after discount = 47.99 - ( 20/100 ) x 47.99
On simplifying the equation , we get
The cost of sweater after discount = 47.99 - 9.598
The cost of sweater after discount = $ 38.392
Now , the percentage of sales tax = 6 %
The cost of sweater after sales tax = 38.392 + ( 6/100 ) x 38.392
On simplifying the equation , we get
The cost of sweater after sales tax = 38.392 + 2.30352
The cost of sweater after sales tax = $ 40.695
Therefore , the value of A is $ 40.69
Hence , the final cost of the sweater is $ 40.69
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A DVD club charges nonmembers $20. 50 to purchase a DVD. Members pay $18 per DVD for a one-time membership cost of $25. The cost is the same for members and nonmembers on the first purchase is 10.
Let's call the number of DVDs "d". For non-members, the cost of purchasing d DVDs is:
Cost for non-members = 20.50d
For members, the cost of purchasing d DVDs is:
Cost for members = 25 + 18d
We want to find the value of d for which the cost is the same for members and non-members. In other words, we want to find the value of d that satisfies the equation:
20.50d = 25 + 18d
To solve for d, we can start by subtracting 18d from both sides of the equation:
2.50d = 25
Then, we can divide both sides by 2.50:
d = 10
Therefore, the cost will be the same for members and non-members on the first purchase if the number of DVDs purchased is 10.
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