8m=d
m+d=153
d=153-m
8m=153-m
9m=153
m=17
8*17=d
Answer:
$124
Step-by-step explanation:
If the tax value of a item that costs $310 before tax is $25, we can calculate the tax percentage by dividing the tax costs by the item value without taxes:
tax = 25/310 = 0.0806
So, for the second item, if the tax costs were $10, we can calculate the item value (this value will be called X) with the following equation:
tax = 10/X = 0.0806 -> X = 10/0.0806 = $124
Another way of solving this problem, is by rule of three:
tax of 25 for an item of $310,
tax of 10 for an item of $X
25/10 = 310/X -> X = 310*10/25 = $124
FIRST
Write the two points that pass through the graph
(x₁,y₁) = (0,0)
(x₂,y₂) = (2,94)
SECOND
Find the slope of the line first
m = (y₂ - y₁)/(x₂ - x₁)
m = (94 - 0)/(2 - 0)
m = 94/2
m = 47
You can make algebraic expression with the help of line equation formula
y - y₁ = m(x - x₁)
Now input the numbers to the formula
y - y₁ = m(x - x₁)
y - 0 = 47(x - 0)
y = 47x
The answer is third option
A is the answer you are looking for.
Answer:
$25.17
Step-by-step explanation:
oh boy. mAth and typiNG.
SO, first, find 1% of 21.89 (move the decimal point to the left twice.) That gives us 0.2189.
If she wants to tip 15%, multiply 0.2189 by 15. That means she tips $3.2835. Of course, you round it to $3.28. Because we are finding the total, you add $3.28 to her bill of $21.89. (21.89 + 3.28 = 25.17)
Finally, that means she pays $25.17 in total.