adding fractions with unlike denominators 1/3 + - 2/7​

Adding Fractions With Unlike Denominators 1/3 + - 2/7

Answers

Answer 1

Answer:

1/21

Step-by-step explanation:

Changing operations to eliminate negative numerators the equation becomes

=1/3−2/7

With unlike denominators find the Least Common Denominator (LCD)

LCD = 21

Multiplying numerators and denominators to get the LCD in all fraction denominators

=1×7/3×7  −2×3 /7×3

Then rewriting the equation with the equivalent fractions

=7/21−6/21

With like denominators we can operate on just the numerators

=7−6/21

=1/21

Answer 2

Answer:

you're correct.

Step-by-step explanation:


Related Questions

Please help!! Will mark brainilest ☺️

Answers

Answer:

B

Step-by-step explanation:

Because there's no change in x so it has to be a straight line going through the y-axis.

Also for A and C, they don't even touch y = 2 so you can easily cross those out.

Is there another way to extend the plane of complex numbers other than by the Riemann sphere?
No answer needed! Just take the points.

Answers

Step-by-step explanation:

Put the question again I don't see it

help plzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

like what type of help that i could help u

Answer:

I think it might be 6.75x - 19.25 = 80

Step-by-step explanation:

6.75x−19.25=80

Step 1: Add 19.25 to both sides.

6.75x−19.25+19.25=80+19.25

6.75x=99.25

Step 2: Divide both sides by 6.75.

6.75x/6.75 = 99.25/6.75

x=14.703704

Write the equation 7x - 4y = -12 in slope-intercept form

Answers

Hello,

The correct answer is: y = 7/4x + 3.

Step-by-step:

Move variables to the right side

-4y = -12 - 7x

Change the signs

4y + 12 + 7x

Divide both sides

y = 3 + 7/4x

Reorder the terms

y = 7/4x + 3

Answer: y = 7/4x + 3

Hope this helps!

Gas prices are expected to rise 5% each week for the next six weeks. Kevin spent $52.50 to fill his tank this week.
Which of the following represents the total amount Kevin can expect to spend to fill his tank over the next three
weeks, if he fills his tank once a week?
$52.50 + $55.13 + $57.76
$52.50 - $55.13 + $57.88
$55.13 + $57.76 - $60.39
$55.13 - $57.88 + $60.78

Answers

Answer:

D. $55.13 - $57.88 + $60.78

Step-by-step explanation:

52.50 x 1.05= 55.125 = 55.13

55.13 x 1.05= 57.88125 = 57.88

You can already eliminate a, b, and c because they don't match, so the answer is D.

The total amount is 55.13+57.88+60.78. Therefore, option D is the correct answer.

Given that, gas prices are expected to rise 5% each week for the next six weeks. Kevin spent $52.50 to fill his tank this week.

What is the percentage?

In mathematics, a percentage is a number or ratio expressed as a fraction of 100.

Now, in the first week 105% of 52.50

52.50 x 1.05= 55.125 = 55.13

In the second week 105% of 55.13

55.13 x 1.05= 57.88125 = 57.88

In the third week 105% of 57.88

57.88x 1.05= 60.775=60.78

So the total amount=55.13+57.88+60.78

Therefore, option D is the correct answer.

To learn more about the percentage visit:

https://brainly.com/question/24159063.

#SPJ2

True or false are all structures made by humans and why

Answers

Answer:

mostly. trees and most plants arent

Solve for x: −3x + 3 −1
x −3

Answers

I'm pretty sure it's-4x because. (-3x-1x)= -4x and (3-3)=0

Simplify (W^4)^4 without parentheses

Answers

Answer:

w^16

Step-by-step explanation:

you have to multiply the exponents when this happens so 4*4=16

I need help with this question pleaseeee

Answers

Answer: 639

Step-by-step explanation:

i might be wrong but that's how i was taught! :)


The average cost for a gallon of gasoline in 2006 was $2.45. In 2007, the average cost of a gallon of gasoline was $3.29. What is the
approximate percent of change in the cost of a gallon of gasoline?

Answers

Answer:

34%

Step-by-step explanation:

100%=2.45

? =3.29

3.29/2.45×100=134.29

134.29-100=34%

greatest to least 4/10, 0.50, 1/4, 0.06​

Answers

Answer:

0.50, 4/10, 1/4, 0.06

Step-by-step explanation:

1/4 = 0.25

4/10 = 0.40

Answer:

OoP NVmM SoRrY- XD

Step-by-step explanation:

^^  Hopefully this works, I'm rooting for you!

An objects _________

Answers

i can’t really see it

The area of a triangle can be found using the formula:
Area=1/2=base=height
Find the area of the triangle pictured below where the measurements are given in meters, (M)
2m
5m

Answers

Answer:

5 squared units

Step-by-step explanation:

Area of triangle

[tex] = \frac{1}{2} \times base \times height \\ \\ = \frac{1}{2} \times 2 \times 5 \\ \\ = 5 \: {unit}^{2} [/tex]

what's the answer please​

Answers

the answer is 888829299293

FLUENCY
• If the point A(2,7) was dilated by a factor of 2 with a center at the origin and then translated
by three units left and four units down, its image would be located at which of the following?

A: (1,10)
B:(1,5)
C:(7, 18)
D:(10, 3)

Pleaseee help!!

Answers

Answer:

Answer option A:  (1, 10)

Step-by-step explanation:

With the dilation by a factor of "2" via the origin, the point A goes from:

(2, 7) --> (4, 14)

Then with a shift of three units left it goes:

(4, 14) --> (4 - 3, 14) = ( 1, 14)

Then when shifting it four units down, it goes:

(1, 14) --> (1, 14 - 4) = ( 1, 10)

PLEASE ANSWER!!
A store clerk tells you that if you use a 10% off coupon the $30 jacket you want will only cost $20. What mistake has she made? What is the true cost of the jacket?

Answers

Answer: The true cost of the jacket is $27 dollars.

Step-by-step explanation: To find the cost of the jacket after the discount just do 30 X .1 to get 3. Then take 3 and subtract it from 30. The mistake the clerk made was he probably just saw 10% and did 30-10=20. The clerk might have brain damage because this is like 5th grade math.


rise =
run =
slope =

Answers

10-10
21;4
Tahbrdx the rise of the run is the slope over the run

Which size bottle of ketchup is the best deal with the lowest unit price?

Prices for Different Sizes of Bottles of Ketchup
Size Bottle
Price
10 oz.
$2.50
14 oz.
$2.80
16 oz.
$4.00
18 oz.
$5.40

Answers

Answer:

14oz for $2.80

Step-by-step explanation:

Well to determine the unit prices you must divide the price by whatever the weight is. As so:

10oz:  2.5/10=0.25

14oz:  2.8/14=0.20

16oz:  4/16=0.25

18oz:  5.4/18=0.30

So your answer is 14oz for $2.80

Answer: I’m pretty sure ur answer would be 14 oz. :)

Step-by-step explanation: good luck !<3

5
What is the missing value in the following arithmetic sequence?
4
3
9.2
2
1
5.6
n
3.8
2
an
7.1
7.2
74
7.5

Answers

Answer:

C-7.4

Step-by-step explanation:

just took the test EDG2020

The nth term of an arithmetic sequence is a +(n-1)d. The missing term of the arithmetic sequence is 7.4

How to calculate the nth term of an arithmetic sequence?

The nth term of an arithmetic sequence is expressed according to the formula as shown:

Tn = a + (n -1)d

where:

a is the first term = 2

d is the common difference = 3.8 -2 = 1.8

Required

Fourth term (n = 4)

Substitute

T4 = 2 + (4 -1)(1.8)
T4 = 2+3(1.8)
T4 = 7.4

Hence the missing term of the arithmetic sequence is 7.4

Learn more on AP here: https://brainly.com/question/24205483

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I need help with problem 8 with work shown and explanation
ASAP PLEASE!!!!!!!!

Answers

Answer:

6 movies = 1st plan

7 movies = 1st plan

8 movies = Either is fine. (They're the same price)

9 movies = 2nd plan

10 movies = 2nd plan

Step-by-step explanation:

6 movies (1st plan) = 20 + 5 × 6

                               = 50 (less than 60 so it is cheaper)

7 movies (1st plan) = 20 + 5 × 7

                               = 55 (less than 60 so it is cheaper)

8 movies (1st plan) = 20 + 5 × 8

                               = 60 (same as 2nd plan so either is fine)

9 movies (1st plan) = 20 + 5 × 9

                               = 65 (more than 60 so 2nd plan is better)

10 movies (1st plan) = 20 + 5 × 10

                               = 70 (more than 60 so 2nd plan is better)

i need help with this asap! i will give brainliest!!

Answers

Answer:

97

Step-by-step explanation:

Angle on a straight line = 180

106 + ∠st = 180

∠st = 180 - 106 = 74

x = ∠st + 23

= 74 + 23

= 97

Answer:

51 degrees

Step-by-step explanation:

This is a scalene triangle. Which means it sums up to 180 degrees. Therefore, you have to add up all the degrees to 180. 106+23 is 129, and 180 - 129 is 51.

A pool is being filled at a constant rate of 5 gallons every 2 minutes. Which graph has a slope that best represents this rate?

Answers

Answer:

21.4 gpm

Step-by-step explanation

answer fast.... ........​

Answers

Answer:

A.) 1/2

B.)5/8

C.)1/4

D.)3/4

To find the fraction just count the number of figures total. This is the denominator of your fraction

NExt just count how many spaces are shaded and that number is your numerator

For example in A we see that there is 4 triangles total

Therefore our fraction currently is x/4

NeXT we see that there are 2 shaded in

This makes our fraction 2/4 which if simplified is 1/2

Step-by-step explanation:

2/3 (x - 7) = -2

(please help I need this turned in really soon)

Answers

Answer: x=4

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

[tex]\frac{2}{3} (x-7)=-2\\[/tex]

[tex]\frac{2}{3} x+\frac{-14}{3} =-2[/tex]

[tex]\frac{2}{3}x=\frac{3}{8}[/tex]

[tex]x=4[/tex]

Can someone help me please

Answers

Answer:

64 cm^2

Step-by-step explanation:

SA = s^2 + 2sl

= 4^2 + 2(4)(6)

= 64 cm^2

Solve the radical equation.
PLEASE HELPPPP

Answers

This was taken from a source, but I hope it helped out! Have a nice day :)

(The answer is in the bottom of the picture)

PLEASE HELP WILL MARK BRAINLEIST

Answers

Answer:

a

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Lin is paid $90 for 5 hours of work. She used the table to calculate how much she would be paid at this rate for 8 hours of work 1. What is the meaning of the 18 that appears in the table?.

Answers

Answer:

It was used as the multiplier because the 5 represents the hours she's worked. If she uses the 1/5 graph she will find the unit rate of each time she gets paid an hour.

what would be the slope?​

Answers

I think 8, because 1/8

Find the x-intercept of the following linear function: 3x - 2y- 16
QUICK

Answers

I gotchu

To solve for x-intercepts, y must be 0.

3x - 2(0) - 16 = 0

3x - 16 = 0

3x = 16

x = 16/3

X intercepts are ([tex]\frac{16}{3}[/tex],0)

Answer:

The answer is 5.33333333 or 5 1/3

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