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Work Shown:
x = total bill amount ignoring the tip
18% of x = 0.18x = tip amount
x+0.18x = 1.18x = amount Martin paid = 27
1.18x = 27
x = 27/1.18
x = 22.8813559322033 approximately
x = 22.88 dollars was the total bill.
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Checking the answer:
18% of 22.88 = 0.18*22.88 = 4.1184 = 4.12
Martin left a tip of $4.12
Add this on top of the bill to get 22.88+4.12 = 27
This matches with the fact he paid $27.
The answer is confirmed.
the equation is now solved for y = 1/2x-5
Answer:
slope: 1/2
y- intercept:(0,-5)
standard form: x - 2y = 10
Step-by-step explanation:
solve 35% of 84 using the mental method
Answer:
29 approximately
Step-by-step explanation:
You want to estimate 35% of 84. 35% is roughly equivalent to 1/3, so multiply 84 by 1/3 (or, equivalently, divide 84 by 3), obtaining 28. Use a calculator to find 0.35(84): 29.4. This 28 is a fairly good estimate of 35% of 84 which is 29.4.
Simplify the expression. (d² - d+5) - (-d² + d + 5)
Answer: [tex]2d^2-2d[/tex]
Step-by-step explanation:
Given
[tex]\Rightarrow (d^2-d+5)-(-d^2+d+5)\\\Rightarrow (d^2+d^2)-d-d+5-5=0-2d+0\\\Rightarrow 2d^2-2d=2d(d-1)[/tex]
When Maria was born, her parents set up a savings account for her with $1000. The account pays 5% annual interest and it is compounded quarterly? How much money will Maria have when she turns 18. Round your answer to the nearest whole number. Maria will have $ when she turns 18
Answer:
she will have 3,600 dollars when she is 18
Step-by-step explanation:
A pizza with a diameter of 8 inches costs $10 and a pizza
with a radius of 5 inches costs $12. Which pizza is the
best buy (square inches per dollar)?
Answer:
8 inch is your best buy
Step-by-step explanation:
8inch diameter =10 dollars
5 inch radius = 12 dollars
so if we get each equal to the diameter it should be 10 inch and that would be 24 dollars vs . 8 in for 10 dollars. So best buy would be 8 inch
Question in picture! Answer ASAP please! Will give brainliest!
Answer:
the third graph
Step-by-step explanation:
Emiko needs to go to the dentist. It takes her 65minutes to get there by riding her bike. This is 5 minutes shorter than twice the time it would takeby bus. How long does it take Emiko to get to the dentist by bus? a.35 min b.40 min c.45 min d.50 min I will brainliest
65 min by riding her bike
x min by boarding a bus
since the time taken to get to the dentist with a bus is 5min shorter than twice the time taken with a bike, it can be written as
(2x) - 5 = 65
2x = 65 + 5
2x = 70
x = 35 min. (A)
Helpppppp me pleaseeee
Answer:
3. C
4. D
Step-by-step explanation:
1. add flat fee to each song.
2. Multiply 0.15 by 25 then add 10
What is an equation of a parabola with its vertex at (0,0), but facing down?
What is an equation of a parabola with its vertex at (1,1)?
What is an equation of a parabola with its vertex at (-1,-1)?
What is the equation of a parabola with its vertex at (2,2) that passes through the origin?
What is the equation of a parabola with its vertex at (-2,2) that passes through the origin?
Answer:
For the first question: y = x^2
For the second question: y = x^2 - 2x + 1
For the third question: y = x^2 + 2x + 1
For the fourth question: y = x
For the fifth question: y = -x
Hope this helps:) Have a great day!
Emliy has 13 candies and wants to give an even amount to each of her 3 friends. How many candies do each of emily's friends get, and how many candies are left over
Answer:
Each friend gets 4 candies and there is 1 left over.
Step-by-step explanation:
4 x 3 = 12.
13 - 12 = 1.
What are the measures of the other three angles formed by the intersection?
What is 9/4 in decimal form
Answer:
2.25Explanation:
2.25 is a decimal and 225/100 or 225% is the percentage for 9/4.
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Hope I helped!!!
GL :)
What is the equation of the line that passes through the point (3,-2) and has a
slope of -22
Answer:
y = -2x + 4
Step-by-step explanation:
slope intercept form:
y = mx + b
m = slope = -2
b = y-intercept
x = x = 3
y = y = -2
Plug in the corresponding numbers to the corresponding variables:
-2 = (-2) * (3) + b
Simplify. First, multiply:
-2 = (-6) + b
Next, isolate the b. Note the equal sign, what you do to one side, you do to the other. Add 6 to both sides of the equation:
-2 (+6) = -6 (+6) + b
b = -2 + 6
b = 4
Plug in 4 for b in the equation:
y = mx + b
y = -2x + 4
~
Find 26 2/3 % of 90.
Answer:
I said 24. I hope this helps and works
TOTAL SURFACE AREA!!! WILL GIVE BRAINLIEST
Answer:
158in^2
Step-by-step explanation:
Answer:
158 in^2
Step-by-step explanation:
2C = 2x5x8 = 80
2B = 2x3x8 = 48
2C = 2x3x5 = 30
80+48+30 = 158 in^2
what is the value of x
Answer:
x=11
Step-by-step explanation:
6x + 1 + 7x = 144
13x + 1 = 144
13x = 143
x = 11
2.7+ a/0.6=1.7
What's A.
Answer:
a = 0.6
Step-by-step explanation:
i hope im right
Can you please answer these correctly
Answer:
zeros= none
axis of symmetry= 3
vertex = 3,1
y int. = 7
domain= Xer
range= y >7, yer
If 50 people can fit into 6 rooms. How many people
fit into 42 rooms?
Answer:
350 people can fit into 42 rooms
Step-by-step explanation:
So we can write it as a relation fraction equation:
[tex]\frac{50}{6}=\frac{x}{42}[/tex]
Where:
x represents the people can fit in 42 rooms
[tex]x=\frac{50*42}{6}[/tex]
[tex]x=350[/tex]
Therefore, 350 people can fit into 42 rooms.
I hope it helps you!
Find the equation of the line that is parallel to the line y=-3x-7 and passes through the point (1,2). Write an equation in slop intercept form
Answer:
y=-3x+5
Step-by-step explanation:
y=-3x-7
slope is -3
parallel lines have the same steepness, they have the same slope. The slopes are equal.
y-y1=m(x-x1)
y-2=-3(x-1)
y-2=-3x+3
y=-3x+3+2
y=-3x+5
A corner store sells two kinds of baked goods: cakes and pies. A cake costs $6 and a pie costs $12. In one
day, the store sold 13 baked goods for a total of $108. How many cakes did they sell?
The power 92 is equivalent to 81. What is the value of 9-2?
-81
-9
81
Answer:
Its 1/81
Step-by-step explanation:
I am not sure why it is not in your choices but I think that's the answer!
PLEASE HELP FAST BRAINEIST
The sum of two numbers is 35 and the difference is 7. What are the numbers? Larger number: Smaller number:
larger number :21
smaller number:14
Write 0.79 repeating as a fraction.
Answer:
79/99
Step-by-step explanation:
Answer:79/100
Step-by-step explanation:
Hello can you help me solve this problem? Thank you in advance. :))) "A roof in the shape of a cone has a diameter of 15 feet and a slant height of 18 feet. If one box of shingles covers 34 square feet and cost $27, how much will it cost to cover the roof in shingles?"
Answer:
__
7.933
Step-by-step explanation:
photo explains it use it
hope this helps ^^
a) A graph is drawn below.
у
Explain how you know that y is
not directly proportional to x.
Answer:
Y is not directly proportional to x because the line does not pass through the Origin.
On a coordinated plane how are the locations of the points (-8,-4)and(8,-4)related?
Answer:
they are related because they are across the x axis
What is the slope of the line? Explain how you calculated the slope in the graph going through the points (-6,-3) and (-2,-8).
Answer:
[tex]\frac{-5}{4}[/tex]
Step-by-step explanation:
Use the slope formula so y2 - y1 / x2 - x1 [the numbers are subscripts]
So -8 - (-3) / -2 - (-6) so -8+3/-2+6, therefore -5/4
What is 3/4 divided by 1/8? Draw a diagram to solve
Answer:
6
Step-by-step explanation:
Sorry I can't draw a diagram :/
Switch 1/8 upside down to, 8/1
(3/4)*(8/1)=(24/4)
(24/4)=6
How does an expression differ from an equation?