Ans: 9 points
Step-by-step explanation:
Please answer the following essay question:
Explain why we need to have a common denominator in order to add or subtract fractions.
Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate.
Answer: The denominator of a fraction tells you the relative size of the pieces. Therefore, the reason fractions need a common denominator before adding or subtracting is so that the numbers of pieces you are adding/subtracting are all the same size.
Answer:
We need to have a common denominator in order to subtract different fractions because if we have an example like.
5/2 - 6/8 we cannot do that because the denominator is not alike.
We have to use multiplication to help us here.
2 x 8 = 16 !
So. no we have 5/16
so now we do 5 x 8 = 40
So now my new fraction is - 40/16 BUTTTT 40/16 is an improper fraction. so 40/16 = 5/2
Now we are back at the square 1 so now we have to fix 6/8.
8 x 6 = 48
6 x 6 = 36.
--
2 x 24 = 48.
5 x 24 = 120 or 12
now we have 12/48 and 36/48.
We can subtract now!
Hope this helped for problems like this.
hi again answer these questions lspslsplsplspsldpwkqmeij3k1nh32jn3213123421
Answer:
i don't even know the answer to this stuff lol
A person earns 16,000 one year and get 5% raise in salary. Calculate the new yearly salary using a percent greater than 100.
please help me if you can
Answer:
16800 a year
Step-by-step explanation:
Mark talked on his cell phone 3 hours over the weekend. Genaro talked on his phone 1 9−− 10hours. How much longer did Mark talk on his phone than Genaro?
Answer:
3 - 1 9/10 = 2 10/10 - 1 9/10 = 1 1/10 hours
Step-by-step explanation:
Answer:
5 7/10 longer
Step-by-step explanation:
Hope this helps <3
Dan bought one package if blackberries for 3 dollars/euros. How many packages can Darryl buy if he has 15 dollars/euros?
Answer:
Dan can buy 5 bags for 15 dollars
Step-by-step explanation:
divide 15 and 3 it will equal 5
Answer:
5 packages of blackberries for $15 EUR
Step-by-step explanation:
Solve with SF;
Scale factor is 3/1
y = 1/3x
y = 1/3(15)
y = 15/3
y = 5
Consider Brainliest!
Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes. If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce bags? Explain.
A. Yes; Machine A and Machine B make 77.5 ounces in 10 minutes. 77.5 > 72, so there will be enough popcorn.
B. Yes; Machine A and Machine B make 87.5 ounces in 10 minutes. 87.5 > 72, so there will be enough popcorn.
C. No; Machine A and Machine B make 67.5 ounces in 10 minutes. 67.5 < 72, so there will not be enough popcorn.
D. No; Machine A and Machine B make 30.75 ounces in 10 minutes. 30.75 < 72, so there will not be enough popcorn.
Answer: Machine A makes popcorn at a rate of 4.25 ozs per minute (12.75oz/3min).
Machine B makes popcorn at a rate of 4.5 ozs per minute (18oz/4min).
Machine A will make 4.25oz/min * 10minutes = 42.5oz of popcorn after 10 minutes
Machine B will make 4.5oz/min * 10 minutes = 45oz of popcorn after 10 minutes
After 10 minutes there will be a total of 42.5oz (Machine A) +45oz (Machine B) = 87.5oz.
So the answer is: Yes there will be (more than) enough popcorn if both machines make popcorn for 10 minutes.
If the question is wondering how many 9oz bags they can fill: 87.5oz/9oz per bag = 9.7222 bags. The machines can fill 9, 9oz, bags with some popcorn leftover.
Step-by-step explanation:
Answer:
A/B
Step-by-step explanation:
They will have enough popcorn
Either way there will be enough popcorn to make eight 9-ounce bags.
Hope it helps
Can you answer number 3, 4, and 5?
(Whoever is right gets brainliest)
Answer:
3: 200, 200
4:800
5:400
Step-by-step explanation:
:)
Answer:
3, 175 by 300. 4, 950. 5, 52,500
Step-by-step explanation:
simplify the expression 4x24
Answer:
96
Step-by-step explanation:
4*24 = 96
PLEASE HELP ME!! I WILL MARK BRAINLIEST!!
Please answer asap, its due in a couple days :3
First-person to get this right with an explanation gets Brainliest
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with
1. Scale factor 5?
2. Scale factor 3.7?
3. Scale factor 1/5?
4. Scale factor s?
Identify next three numbers in this sequence: 2, 6, 3, 9, 6, 18, 15…
45, 22.5, 67.5
19, 16, 20
45, 42, 126
40, 37, 111
Answer: 45, 42, 126
Step-by-step explanation:
hope it helps
PLEASE HELP I WILL GIVE YOU 20 POINTS. IF YOU DONT HELP I WILL REPORT YOU, IM NOT TRYING TO BE RUDE.
The Diver: (-6, 3)
The whale: (-7, -6)
The Treasure: (7, 3)
Explain how you know for the questions below.
1. If Captain Sullivan lost his map but he knew the coordinates of the diver and the treasure, how could he find the distance between the diver and the treasure?
Think about how you can use absolute value notation to express the distance between two points on a coordinate graph. For each pair of points below, find the distance between the given points and express your work using absolute value symbols.
(4, 9) and ( –5, 9)
What is wrong with the equation.
Answer:
not the at most sign
Step-by-step explanation:
The phoenix firm has $756 to distribute to it's employees as a gift. how much money will each employee get?
The number of students who attended Lincoln Middle School last year was 860. This year, the attendance has increased to 1032 students. What percent of last year’s student population is attending Lincoln Middle School this year?
Answer:
120%
Step-by-step explanation:
I just got it right !!
Answer: 120%
Step-by-step explanation: n =120%
I REALLY REALLY NEED HELP ON THIS!!! IF YOU SHOW YOUR WORK I WILL MARK YOU AS BRAINLIEST!! WORTH 20 POINTS!!! A water pump moves 360 gallons of water in 18 minutes. Draw a graph of the situation. How long would it take to pump 1,080 gallons of water? Find the number of gallons pumped each minute.
The city council voted on a new tax. 18 council members voted in favor of the tax. The council has 90 members. What percentage of the council members voted in favor of the tax?
Answer:
20%
Step-by-step explanation:
18/90 = .2
Decimal to Percentage Rule: Multiply by 100
.2 * 100 = 20
20%
Hope this helps! Have a nice day!
There are approximately 250.9 million cars in the United States.
Spain has approximately 25.1 million cars. About how many times
more cars does the U.S. have than Spain? Explain why your answer
is reasonable.
Answer:
9.99 (SIMPLIFIED ANSWER)
Step-by-step explanation:
First, we have to divide 250.9 (The dividend) by 25.1 (The divisor), and you get 9.99601593625, but if you need to simplify it, it would be 9.99.
Using compatible numbers, which of the following is the best estimate for 564 ÷ 73?
A. 8
B. 9
C. 7
D. 6
help help help help please
Answer:
By $50, and because 1 =125, it would be the starter cost.
Step-by-step explanation:
evaluate the expression | -7 | - 5 =
Answer:
-13
Step-by-step explanation:
Write 240 as an exponent with a base of:
2^2
2^5
2^8
Please answer all 3! Will Award brainliest!
Answer:
2^2=4
2^5=64
2^8=512
Step-by-step explanation:
2x2=4
2x2=4, 4x2=8, 8x2=16, 16x2=32, 32x2=64
2x2=4, 4x2=8, 8x2=16, 16x2=32, 32x2=64, 64x2=128, 128x2=256, 256x2=512
i wil give you a brainlyest if you help me and five stars simplify the expression like terms 2(x+6)+3x+4=
Answer: 5x + 16
Step-by-step explanation: distribute, add the numbers, and combine like terms.
Answer:
x = -3.2
Step-by-step explanation:
First, solve parenthesis:
2(x+6)+3x+4= 0 (Given)
2x + 12 + 3x + 4 = 0 (distributive property of equality)
Then, you comibine like terms:
2x + 12 + 3x + 4 = 0
5x + 16 = 0 (Combining like terms)
And then, move the variables to the left and constants to the right:
5x + 16 = 0
5x = -16 (Subtraction property of equality) You subtract 16 from both side, since the variable is on the right already you leave it that way.
Finally, you divide both sides to get the answer ( solve for X):
5x = -16
x = -3.2 (division property of equality)
There is your answer!
Hope this helps!
GUYS HELP ME ON MY MATH AND I WILL GIVE U BRAINLIEST AND 30 POINTS
Answer:
I do not see the pic. Um is it probability? I am doing that currently.
Step-by-step explanation: I have paper on stand-by for further notice. So if you can fix the pic, that would be great.
11020+12 In base 3
pls help
Answer:
I would help but this question is hard lol
Step-by-step explanation:
Which equation describes a nonlinear function of x?
A. y = 2x - 378
B. y = X-y
C. 0 = 13x -- 91y
D. 4 = x2 - y
Help needed!!!
Answer:the answer is C
Step-by-step explanation:
An image point of a tranformation has coordinates Y'(2, -4). If the pre-image point had coordinates Y(6, -12) what was the transformation and scale factor?
a. reflection with scale factor 3
b. reflection with scale factor 1/3
c. dilation with scale factor 3
d. dilation with scale factor 1/3
Answer: C, a Dilation
Step-by-step explanation:
PLEASE HELP
David’s French test scores are 87%, 88%, 82%, 83%, 88%, 86%, and 88%. His latest test score is 100%. Which measure (mean, median, or mode) will be most affected by his latest score? Explain.
Answer:
Mean
Step-by-step explanation:
median will only shift by one number, mode is not affected, the mean has a large change.
A store buys cell phones from the manufacturer for $34.40 and marks them up by 85%. What is the sale price of the phones in the store?
Answer:
$5.16
Step-by-step explanation:
34.40 divided by .85 is 29.24. Subtract the diffrence of 34,40 and 29.24 which is $5.16. Hope this helps :)