Can someone please help me with 2 math questions.
1. A TV is on sale for $399, or 16% off. What was the original price of the TV? Show your work.
2. A computer is on sale for $450.50, or 15% off. What was the original price of the computer? Show your work.
Answer:
Step-by-step explanation:
1) $399 = 84% of the original amount
Divide both sides by 84 to get what one percent would be
$4.75 = 1%
Then multiply both sides to get one hundred percent [the original price]
$475 =100%
Use this method to do the second question
$450.50 = 85%
Divide by 85
$5.30 = 1%
Multiply by 100
$530 = original price
The area of a square is represented by the expression 16x^4y^8. What is the length of each side of this square
Answer: [tex]4x^2y^4[/tex]
Step-by-step explanation:
Given
The area of the square is [tex]A=16x^4y^8[/tex]
Suppose a is the side length of the square
The area of the square is given by
[tex]\Rightarrow A=(\text{side length})^2[/tex]
So, we can write
[tex]\Rightarrow a^2=16x^4y^8\\\Rightarrow a=4x^2y^4[/tex]
length of each side is [tex]4x^2y^4[/tex]
triangle DEF and GHI are similar right triangles. based on this information, which statement is true?
A: the relationship between the slope of triangle DEF and the slope of triangle GHI cannot be determined.
B: The slope of triangle DEF is greater than the slope of triangle GHI
C: The slope of triangle DEF is less than the slope of triangle GHI
D: the slope of triangle DEF is equal to the slope of the GHI
Answer:
D
Step-by-step explanation:
Both have a slope of 3/2
Answer:
b
Step-by-step explanation:
Joe and John have Repair shops. Joe charges $11.25 per hour for repairs. The table below show's John's rate: Who earns more money per hour? How much more money does that person charge per hour?
Answer: John earns $0.25 more an hour than Joe does.
Step-by-step explanation: 3 hours is equivalent to $34.50 in payouts, meaning in order to get the hourly charge you would have to divide 34.50 by 3. Which is 11.5 or 11.50. 11.25 is 0.25 below 11.50. Hope this helps! :)
what is 2+2 who ever answers wrong will get brainiest
Answer:
5
Step-by-step explanation:
2 +2 = 5
by mistake
follow meAnswer:
4
Step-by-step explanation:
Ms.Knight wants to throw a pizza party for the 7th graders. In a random sample, 13 out of 20 7th graders preferred pepperoni pizza and the other 7 proffered cheese. Based on this data out of 400 total 7th graders approximately how many prefer pepperoni?
Give steps.
Answer:
260
Step-by-step explanation:
because 13 of 20 is 65% filled up and 260 is 65% of 400
Answer:
260 i say
Step-by-step explanation:
hi caroline
Given that x - y = 5 and xy = -6/1/2,
find the value of x² + y².
Answer:
24Step-by-step explanation:
(x - y)² = x² + y² - 2xyx² + y² = (x - y)² + 2xySubstitute given values
x² + y² = 5² + 2(-6/12) = 25 - 1 = 24Answer:
Given that x - y = 5 and xy = -6/1/2,
Step-by-step explanation:
the value of x² + y².
=(x-y)²+2xy=5²+2×[-6 1/2]=25-13=12 is your answer
Javier and his family drink 3 gallons of milk each week. Javier drinks 5 quarts of milk each week. How many pints of milk does the rest of his family drink during the week?
A.12
B.14
C.7
D.10
Answer:
So basically Javier and his family drink a total of 12 quarts of milk each week because 1 gallon of milk is 4 quarts so Javier drinks 5 quarts 12-5=7
which leaves 7 quarts for his family. 2 pints are equal to a quart therefore 14 pints are left for his family
Need help with the correct answer please! Thank you. Which two triangles are congruent by the SSS Theorem? I picked D but that is the wrong answer.
Answer:
B
Step-by-step explanation:
RQ=TV
QS=VU
RS=TU
While proving that 2 triangles are congruent you have to consider the same side for both triangles.
The mistake you made was that you presumed that since both have equal sides they are equal,
In a sense that is true but you have align it in the correct way, in option D) it shows RQ is equal to TU which is wrong, RQ is equal to VT, you have align it in a proper way.
B) ΔRQS ≅ ΔTVU here it is align perfectly to be matched
Happy to help :)
If you need any more help, you can ask me
Follow the steps to find the common denominators for 2/3 and 1/5
Answer:
15
Step-by-step explanation:
To find the common denominators for 2/3 and 1/5, just look at the denominators for both of the fractions, 3 and 5
Multiply 3 and 5, which is 15. 15 is the common denominator.
Natalie lost her job through no fault of her own. She had worked there for two years and the last year she earned $27,500. She has applied for unemployment insurance. What will her weekly benefit be?
Answer:
it should be around $527
Step-by-step explanation:
Answer:
550
Step-by-step explanation:
426 per week up to 26 weeks
Simplify: 4r342 - 6t2r3 + 3rt - 16
Answer:
-2r3t2 + 3rt – 16
Step-by-step explanation:
Like terms have the same variables with the same exponents on each variable. Add their coefficients, and keep the same variables and exponents.
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:
20.94 cm^3
Step-by-step explanation:
Volume of cone = 1/3 (pi r^2 h)
V = 1/3 (pi 2^2 × 5)
=20.94 cm^3
The area of a circle having radius 14 cm is
cm.
Use *
22
7
Answer:
A=616cm²
Step-by-step explanation:
The question says to use
[tex] \frac{22}{7} [/tex]
for pi, now that we know that we proceed like normal and do the formula like this.
[tex] \frac{22}{7} {r}^{2} \\\frac{22}{7} \times 196 \\ = 616[/tex]
What set of reflections would carry hexagon ABCDEF onto itself?
Hexagon ABCDEF on the coordinate plane with point A at negative 1, 1, point B at negative 3, 1, point C at negative 4, 2, point
(4 points)
x-axis, y=x, x-axis, y=x
y=x, x-axis, y=x, y-axis
y-axis, x-axis, y-axis
x-axis, y-axis, y-axis
Answer:
Took FLVS test and got it right
A. y=x, x-axis, y=x, y-axis.
Step-by-step explanation:
Took FLVS test and got it right
A. y=x, x-axis, y=x, y-axis.
A) complementary
B) Alternate exterior
C) alternate interior
D) corresponding
Answer:
C
Step-by-step explanation:
Its inside
What is the x coordinate of the solution?
What is the y coordinate of the solution?
Answer:
the x coordinate is 1
the y coordinate is 1
Step-by-step explanation:
Answer:
1,1
Step-by-step explanation:
Other Brainliest if you can answer this correctly
Answer:
Step-by-step explanation:
On Monday, Caroline owed her Mom $350, she was able to pay back $200. Then she spent $23 for gasoline. She returned a sweater to Target and received a refund of $35. Then she spent $15 at the bookstore. Write one number sentence to show what happened on Monday. Then calculate how much money Caroline has now.
Answer:
$200 - $23 + $35 - $15 = $197
Step-by-step explanation:
The total number of tickets sold to a concert is modeled by h(x)=2x^2+6x
, where x represents the number of days since tickets went on sale. How many days have passed if 108 tickets have been sold?
Answer:
6 days
Step-by-step explanation:
Kaylee works at Claire's Jewelry Store at the mall. She earns $7.75 per hour. She earned $93.00 over the weekend. Her final check for the week was $232.50 (before deductions). How many hours did she work in addition to the weekend hours?
Answer:
18 hours during the week days
Step-by-step explanation:
weekend pay + week day pay = total pay
93 + week day pay = 232.50
Subtract 93 from each side
93-93 + week day pay = 232.50-93
week day pay = 139.50
She makes 7.75 per hour
139.50 = hours * pay rate
139.50 = hours*7.75
Divide each side by 7.75
139.50/7.75 = hours
18 = hours
plz help......................................................................
Answer:
2 pairs of parallel side: parallelograms
4 right angles: squares
4 right angles and 4 congruent sides: rectangles
4 congruent sides: rhombuses
Step-by-step explanation:
WILL PAY FOR ANSWER PLS HELP
republican or democrat? explain.
Answer:
Democrat because Republican's are rasict and money hungry..!
what is 0.000036÷180 in standard form
Answer: 36/1000000 is the pq form of the given no..
Step-by-step explanation:
The standard form of 0.000036÷180 is 2 × [tex]10^{-7}[/tex] .
How do you express a number in standard form?Any number that we can write as a decimal number, between 1.0 and 10.0, multiplied by a power of 10, is said to be in standard form. 1.23 × [tex]10^{8}[/tex]; If you observe carefully, 1.23 is a decimal number between 1.0 and 10.0 and so we have the standard form of 123,000,000 as 1.23 × [tex]10^{8}[/tex].
According to the question
0.000036÷180 in standard form
Now,
0.000036÷180
= [tex]\frac{0.000036}{180}[/tex]
= 0.0000002
= [tex]\frac{2}{10000000}[/tex]
= 2 × [tex]10^{-7}[/tex] is the standard form .
Hence, the standard form of 0.000036÷180 is 2 × [tex]10^{-7}[/tex] .
To know more about express a number in standard form here:
https://brainly.com/question/17170676
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3 fewer than 5 times a number is 17
Answer:
Altogether, 3 less than 5 times a number is 5n−3 .
Step-by-step explanation:
Answer:
5x4 = 20-3 = 17
Step-by-step explanation:
Just do 5x4 = 20, then 20-3 = 17.
WHAT ARE ALL PRIME NUMBERS X WHICH ARE [tex]5\ \textless \ x\leq 19[/tex]
WHOEVER ANSWERS FIRST AND CORRECTLY IS BRAINLIEST
Answer:
7, 11, 13, 17, 19
All of these numbers only have 1 and themselves as factors, and every other number can be written as a product of two or more primes, making the remaining number composite:
[tex]6=2\cdot3\\8=2^3\\9=3^2\\10=2\cdot5\\12=2^2\cdot3\\14=2\cdot7\\15=3\cdot5\\16=2^4\\18=2\cdot3^2[/tex]
The prime numbers that X could be are 7, 11, 13, 17, and 19.
Hope this helps; have a great day!
3/7 of the students in a school are in sixth grade. a) How many sixth graders are there if the school has 70 students? 7 b) How many sixth graders are there if the school has 28 students?
Answer:
a) 30 sixth-graders
b) 12 sixth-graders
Step-by-step explanation:
You can solve this problem by multiplying fractions. In order to solve a, you need to multiply 3/7 by 70 students to e t the number of sixth-graders because 3/7 of the population (in this case it's 70) are 6th graders:
70 × 3 ÷ 7 = 70 ÷ 7 × 3 = 30
So if the school has 70 students, 30 are 6th graders.
For part b, you multiply the student population (28) by the ratio 3/7 to find how many 6th grader there are:
28 × 3 ÷ 7 = 28 ÷ 7 × 3 = 12
So if the school has 28 students, 12 are 6th graders.
a) There are 30 sixth graders are there if the school has 70 students.
b) There are 12 sixth graders are there if the school has 28 students.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
3/7 of the students in a school are in sixth grade.
Now,
a) Let the students in school = 70
Then, Number of students in sixth grade = 3/7 × 70
= 3 × 10
= 30
b) And, Let the students in school = 28
Then, Number of students in sixth grade = 3/7 × 28
= 3 × 4
= 12
Thus, a) There are 30 sixth graders are there if the school has 70 students.
b) There are 12 sixth graders are there if the school has 28 students.
Learn more about the multiplication visit:
brainly.com/question/10873737
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Angles and Triangles. Solve for X
-3x-5=7
I need some help. Can someone assist me with this?
Answer:
x = 12
WN = 28
Step-by-step explanation:
SO = WN and SO = 2WI
3x - 8 = 2(x + 2)
3x - 8 = 2x + 4
3x - 2x = 4 + 8
x = 12 now replace x with 12 in the first equation given
3x - 8 = 3×12 - 8
36 - 8 = 28
find the value of given expression
[tex] \sqrt{900} [/tex]
Answer:
30 Ans...............