A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price of $315.
A-what is the original price?
B-How much money did you save off of the original price?
C-What percent of the original price is the sale price?
Answer:
a. So the electric guitar is sold for a sale price of $315 after the discount. The discount was 30%. Even though we get that amount off, we still pay 70% of the original price, because 100% (original price) - 30% is 70%.
b. An equation that can help us find the regular price of the item is through writing and solving a proportion. Set it up like this:
315/x = 70/100
This is because 315 is part of the whole and is 70% of the value of x.
Step-by-step explanation:
Okay. Let's solve this by cross multiplying the values. 315 * 100 is 31,500. 70 * x is 70x. That simplifies to 31,500 = 70x. Didivde each side by 70 to isolate the x. 70x/70 cancels out. 31,500/70 is 450. Let's check this by multiply the number by 70% and see what happens. 450 * 70% (0.7) is 315. There. x = 450. The regular price was $450.
Answer:
a. $450
b. $135
c. 70%
Step-by-step:
[tex]\frac{70}{100} = \frac{315}{450}[/tex] since these two fractions are equal to each other that means the orginal price is $450.
(sale price/original price)x100= % of original price
(315/450)x100=0.7=70%
IF ANSWERED CORRECTLY WILL GIVE BRAINLIEST BUT IF YOU GIVE ME PDFS OR LINKS I WILL REPORT YOU
5. Out of 1000 7th graders, 15 were sampled to find their favorite subject.
Inference: No students describe math as their favorite subject.
Defend or challenge the inference with at least two complete sentences.
History
4
Math
0
English
9
Science
2
Answer:
Defend
some people are intimidated or some people just cant understand math fully and feel challenged due to it and sometimes when people get math wrong they lose self confidence in this subject
Step-by-step explanation:
Well I thought of reason of why people don't like math and added reasons
Jacinta compares the volume of two boxes. Both boxes have a width of 2.5 inches, and a height of 10 inches. The larger box has a length of 8 inches. what is the volume of the larger box
Answer:
200 in ^3
Step-by-step explanation:
10 x 8 x 2.5 = 200
help me please :'-(((((((
Answer:
Step-by-step explanation:
10. mean, 15.5
median, 16.5
mode, 20
What is the total duration in minutes for the recorded lap times?
Sandra's Lap Times
(minutes)
2.4
2.3
1.7
1.8
2.7
2.6
1.9
1.5
1.2
1.4
1.3
1.4
A. 21.7
B. 22.0
C. 22.2
D. 22.5
Answer:
22.2
Step-by-step explanation:
add them
Please help.
How do you graph the inequality of x ≤ -2 on a number line? And is it an open circle or closed?
Answer:
In what article are you most likely to find the sentence “The coma streamed out until it formed a tail of dust and light”?
“Comets in the Sky”
“How to Punctuate Sentences”
“Water Under the Bridge”
“Medical Histories”
Step-by-step explanation:
Answer:
Im pretty sure that you have to do a closed circle on the point of -2 on the number line and draw and arrow pointing to the left and beyond. Hope this helps
Step-by-step explanation:
So it would be drawn something like this:
\
CAN SOMEONE HELP MEEEE????
first bar: 4(high),21(across)
second bar: 9(high),22(across)
third bar: 12(high),14(across)
a wildlife manager determines that the function y=200x1.07* represents the deer population at a state park x years after the population is first counted. what is the population after 12 years? what is the initial population? what is the percentage rate? complete the table below.
Answer:
Table:
0,200
4, 262
8,344
12, 450
Population after 12 years is 450 deer
Initial population is 200 deer.
Step-by-step explanation:
You take the x in the table and plug it in as an exponent so you will need a calculator or multiple the 1.07 by that many times so 1.07 12 times multipled by itself. and the initial is 0 years so anything to the exponent of 0 is 1 so that show i got 200 for the x=0
i uh need help its easy
Answer:
C
Step-by-step explanation:
Answer:
c)
Step-by-step explanation:
so we know that the total amount of students in said school is 180, which means that the total amount of girls in this school cannot be greater than 180
with that, let us get to solving these equations to see which one is less than 180-
a) 85/10*180=1530>180
b) 850/100*180=1530>180
c)0.85*180=153
'c' is the only answer choice less than 180>153
another way to solve this would be to focus solely
on answer choice 'c'-
so 85% of the school is female and 85% as a fraction is 0.85, and we need to find the total amount of girls that attend said school and the only way to do that is to multiply-
0.85*180=153>180
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day
Identify the number or numbers that are equivalent to a terminating decimal.
choose yes or no to tell if the fraction 2/9 will make each equation true
81 x =18
900 x = 200
72 x =16
450x = 100
Answer:
yes
Step-by-step explanation:
to see if 2/9 will make each equation true, you replace 'x' with 2/9, so let us do just that-
81*2/9=18
900*2/9=200
72*2/9=16
72*2/9=16
450*2/9=100
now, seeing as how every answer we've gotten matches the answers of the algebraic equations, the answer is yes 2/9 does make each equation true
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
Answer:
Step-by-step explanation:
i need help on this i well give brainliest
Which of the following expressions have equivalent solutions?
I. −7.56÷2.4−0.65
II. (518−34)÷−134
III. −58(83+113)
The graph shows the number of words in Taylor’s
essay and the number of minutes she spent writing the
essay. What is the rate of change in words per minute?
if i tossed a coin two times and the results are heads and heads. What is the probability in fraction form?
Answer:
Hshhsbsbzbzbxbdbdbddns
HELP FAST
Which is a simplified form of the expression -5(y – 2) – 7y? A. –12y + 10 B. 2y – 10 C. -2y + 10 D. 12y – 10.
Answer: the answer is a
Step-by-step explanation:
Please answer quickly!! There may be be more than one answer!!
Answer:
9 and 10
Step-by-step explanation:
Using is 7. It has to be more than 7, so 9 and 10.
BRAINLIEST PLEASE!!!!
help meh please and thank you!^^
Answer:
10
Step-by-step explanation:
A=hbb
2=5·4
2=10
Answer:
It’s dat ten boi
Step-by-step explanation:
Help me please dew in 5
Answer:
c d and e ar correct
Step-by-step explanation:
Quick need the answer.Please
Answer:
B
Step-by-step explanation:
5. Select the expression that is equivalent to: V + V + V + V.
Answer: B. 4V
Step-by-step explanation: You multiply the Vs by 4 due to how many there are.
Answer:
4V
Step-by-step explanation:
If you put x+x+x+x into a calculator, then you get a line that is equivalent to 4x. Other than that, I can't really explain that any more.
Hope that this helps!
The mark-up on iPhone X's is 250%. If an iPhone costs $200 to make, how much will Apple sell the phone for to make a profit?
A. $500
B. $50
C. $700
D. $300
Answer:
$700 (C)
Step-by-step explanation:
The markup on the phone will be 2.5 * $200 = 500. Then, we add $200 onto that to get $700 total.
Need help, please...
Answer:
yes it is .
Step-by-step explanation:
At his favorite restaurant, Dylan orders a soda with his dinner. The ice in his drink has a mass of 6 g and a volume of 20 cm3. What is the density of the ice? Explain the steps you took to solve this problem.
Answer:
0.3
Step-by-step explanation
The formula to find density is m/v=p
m=mass
v=volume
p=density
---------------------------All we have to do is plug in 6g and 20cm^3
This will give us 6/20 which simplifies to 3/10
With this you can easily figure out that the decimal for 3/10 is 0.3
So the density of the ice is 0.3
Hope this helped!
What is the area of the circle. Explain your work.
78.5m
Step-by-step explanation:
we know the diameter so now we need to know the radius. Divide by 2 and we get 5.
A = Pi×r²
A = Pi×25
A = 78.5
Which statement about △ABC is NOT true?
A)BC is the longest side because it is opposite the largest angle.
B)△ABC is an obtuse scalene triangle.
C)AB is the shortest side because it is opposite the smallest angle.
D)∠B measures 95° because the sum of the angles in a triangle is 180°
During production, a manufacturer of clock radios pulls every 75th radio from the assembly line to check for overall quality.
a. Biased, voluntary response sample
b. Unbiased, stratified random sample
c. Unbiased, systematic random sample
d. Unbiased, simple random sample
Answer:
Unbiased, systematic random sample Or C
Step-by-step explanation:
Answer:
your answer is C
Step-by-step explanation:
Just took it
Describe the angle relationship and solve for the x.
Answer:
x = 25
Step-by-step explanation:
The shown angles appear to be on a straight line
Angles on a straight line have a sum of 180°
That being said we can create an equation using this relationship
180 = x + 2 + 153
now we solve for x using basic algebra
step 1 combine like terms
153 + 2 = 155
now we have 180 = x + 155
step 2 subtract 155 from each side
180 - 155 = 25
155 - 155 cancels out
we're left with x = 25
I NEED HELP ASAP, NO LINKS!!! WILL GIVE BRAINIEST!!
1 is a translation down 8 units and right 5 units. 2 is a translation down 9 units and right 2 units
Math, I need help. . .
Answer:
How do you do it? I can help solve
Step-by-step explanation:
