Mathematics High School

7/8 - 4/5 what is the answer to this thing because i don't know it at all duhhhh

Answers

Answer 1
7/8-4/5. When subtracting two fractions, we must have a common denominator. A common denominator is a factor in which goes into both 8 and 5.

1.) Common factor: 45. 45 goes into and 8 and 5. If we list out all the factors of 8 and 5, 45 will be the lowest common factor.

2.) We need to multiply by a number to get 45 for each denominator. We can a one-step equation to figure out what we need to multiply 8 by and 5 by to get 45.
X=the factor of 8 that will get us 45.
8x=45
8x/8=45/8
x=5.625.
Y=factor of 5 that will get us 45.
5y=45
5y/5=45/5
y=9.

3.) We now know that we need to multiply 8 by 5.625 and 5 by 9 in order to get 45 as the denominator for both fractions.
7/8x5.625-4/5x9
7/45-4/45.

4.) Whatever is done to the denominator must be done to the numerator.
7x5.625/45-4x9/45
39.375/45-36/45

5.) We now have common denominators, so we simple subtract the numerators ONLY. We DO NOT subtract the denominators.
39.375/45-36/45=3.375/45.

Therefore, 3.375/45 is your answer.

Related Questions

For each value of x, determine whether it is a solution to x> 8.
Is it a solution?

Answers

Answer:

what are the values of X?

Solve for x: 7x-3/5x-2 = -2​

Answers

Step-by-step explanation:

★ Solution:-

[tex]\sf \leadsto \dfrac{7x - 3}{5x - 2} = -2[/tex]

[tex]\sf \leadsto 7x - 3 = -2(5x - 2)[/tex]

[tex]\sf \leadsto 7x - 3 = -10x + 4[/tex]

[tex]\sf \leadsto 7x + 10x = 4 + 3[/tex]

[tex]\sf \leadsto 17x = 7[/tex]

[tex]\sf \leadsto x = \dfrac{7}{17}[/tex]

Hence the value of x is 7/17

witch one is bigger?
pls explain it​

Answers

Answer:

The six is bigger

Step-by-step explanation:

They both are inside the absolute value sign, meaning, the the numbers are negative, they will turn positive and if they are positive, then they will remain positive. So, in this case 4 and 6 are both positive and remain positive. And obviously 6 is greater than 4 because 6 comes after 4 in a number line.  

What is 3/4 - 1/6 ÷ 1/3 =?

Answers

Answer:

1/4

Step-by-step explanation:

= 3/4 - 1/2

= 1/4

HELPPPPPP ILL GIVE POINTS AND MARK YOU BRAINLIEST

Answers

Answer:

x = 9

FGH = 5x-3 = 42°

HGI = FGH = 42°

FGI = 42+42= 84°

Step-by-step explanation:

5x - 3 = 6x - 11

x = 9

BRAINLIEST!!! +15 POINTS!!! REAL ANSWERS ONLY PLEASE!!!

Answers

Answer:

I may be wrong but I think it's c

1. Which of the following values of n will make the below equation true? n × (−2+5 ) = −8+20
a. 4 b. -4 c. 3 d. 12

2. What value of n will make the following equation true? 2 + (n+6) = −1+6
a.-3 b.-1 c.5 d.8

Answers

Answer:

1a 2a

Step-by-step explanation:

n × (−2+5 ) = −8+20

n × 3 = 12

n = 4

2 + (n+6) = −1+6

n + 8 = 5

n = -3

I need help answering this equation

Answers

Answer: 47°

Step-by-step explanation:

97 + 36 = 133

180 - 133 = 47

This answer has been deleted

If you purchase a phone that costs $339.00, how much sales tax will you pay if the rate is 8.357%?

Answers

28.33 dollars in sales tax lmk if it’s right or not

$150 total earnings taxes 11% earnings after taxes?

Answers

Answer:

$133.50

Step-by-step explanation:

100%-11%=89%

89%=0.89

0.89*$150=$133.50

past due!!!! PLsss!!!

Answers

The slope would be 2

Answer:

2/1 or 2

Step-by-step explanation:

so first, you have to count the rise/run. This line rises up 2 and runs to the right 1. To find out the rise/ run, find a place in the graphed line where it is on a plot point. For example: (40, 30). Then just see how much it rises and how much it runs.

A local employer asked for help selecting a new type of desk chair. Thirty employees volunteered, and each employee used the new desk chair for two weeks and the current desk chair for two weeks. To determine which chair was used first, a coin was flipped for each employee. Heads represented using the new chair first, and tails represented using the current chair first. At the end of each two-week period, the employees were asked to rate their satisfaction with the new chair. Which of the following best describes this study?

Answers

Answer:

E-It is a well-designed experiment because there is random assignment, replication, and comparison of at least two treatment groups.

Random assignment, replication, and the ability to compare at least two treatment groups are all criteria for a well-designed experiment.

_To solve an absolute value inequality what do I have to do to the absolute value symbols?

a) Isolate

b)keep

c)flip

Answers

Answer:

c) flip

Step-by-step explanation:  When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! hope this helps!!

what property is -6+24=x-24+24

Answers

Answer:

x = 30

Step-by-step explanation:

-6 + 24 = x - 24 + 24

x = 24 + 6 - 24 - 24

x = 30 - 0

 x = 30

What is 5 divided by 1 1/2

Answers

Answer:10

Step-by-step explanation:

Answer:

10

Step-by-step explanation: mark me brainlessly

Mahni plans to spend the next 12 weeks saving some of her income. She will save $x a week for the first 6 weeks and then $(2x − 30) a week for the following 6 weeks. If she managed to save $213 in the first six weeks, how much did she save in total over 12 weeks? Explain correctly how to do this to get Brainliest ANSWER

Answers

$x=213$

For first six weeks she saved 213$

Now

For next 6weeks

[tex]\\ \sf\longmapsto 2x-30=2(213)-30=426-30=396\$[/tex]

Total savings:-

.[tex]\\ \sf\longmapsto 396+213=609\$[/tex]

Answer:

$459

Step-by-step explanation:

Mahni saved 6x in the first 6 weeks which is $213.

She saves in the next 6 weeks:

6*(2x - 30) = 12x - 180 = 2*6x - 180 = 2*213 - 180 = 246

Total saving is:

213 + 246 = 459

2. Stephen Curry's record during the 2017 – 2018 NBA final game is made up of 2-point shots and 3-points.
His total points scored for the final game was 45 points with 19 shots made. How many 2-point shots did
he make? How many 3-point shots did he make?

Answers

Answer:

He made 7 3-point shots.

Step-by-step explanation:

x+y=19

2x+3y=45

y=19-x

2x+3*(19-x)=45

2x+57-3x=45

-x=45-57

-x=-12

x=12

y=19-12

y =7

Decomposition, find f(x) and g(x) so that the function can be

described as y = f(g(x))

y = (x – 4) + 5

f(x)=

g(x) =

Answers

Answer:

steps below

Step-by-step explanation:

f(x) = x + 5

g(x) = x - 4

f(g(x)) = f(x-4) = (x-4) + 5

State the equation of the line described.
A line passes through the point (-3,7) and is perpendicular to the line y = -9x + -1.


thanks for your help!

Answers

Answer:

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes. This means that when you multiply the slopes of the perpendicular lines, its product = -1.

Given the linear equation, y = -9x - 1, and the point, (-3, 7):

Since the slope of the given linear equation is: m1 = -9, then it means that the slope of the other line (m2) = 1/9:

m1 × m2 = -1

-9 × 1/9 = -1

Next, we need to find the y-intercept of the other line. The y-intercept is the point on the line where it crosses the y-axis, and has coordinates (0, b). It is also the value of the y-coordinate when its corresponding x-coordinate = 0.

Using the given point, (-3, 7), and the slope of the other line, m2 = 1/9:

We need to substitute these values into the slope-intercept form, y = mx + b, to solve for the y-intercept, (b):

y = mx + b

7 = 1/9(-3) + b

7 =   -1/3 + b

Add 1/3 to both sides of the equation to solve for b:

7 + 1/3  = 1/3 -1/3 + b

22/3 = b

Therefore, the y-intercept (b) = 22/3.

The linear equation of the other line is: y = 1/9x + 22/3  


5(3x - 2) – 4(2x
+ 1) x=

Answers

Answer:

−8x^2+11x−10

Step-by-step explanation:

Answer:

-8x² + 11x - 10

Step-by-step explanation:

5(3x - 2) - 4(2x + 1)x

15x - 10 - 8x² - 4x

11x - 10 - 8x²

= -8x² + 11x - 10

find the surface area - math test please help

Answers

Answer:

112

Step-by-step explanation:

Triangle surface area: 40cm²

4x4=16

5x4=20x2=40

Rectangle surface area: 72cm²

6x3=18x3=54

3x3=9x2=18

Total surface area: 112cm²

72+40=112

Which is an equation of the line that
passes through the point (5,-2) and has a
slope of.-3?
A y=-3x - 13
C y = 3x – 13
Dy=-3x + 13
B y = 3x + 13

Answers

Answer; D) y=-3x+13

Using Robin’s graph, how can you find the unit rate?

Answers

unit rate = distance / strides

Subtract the complex numbers.
(1 + 51) – (7 +97) =

Answers

Answer: -52

Explanation:
1+51-7-97=-52

2.2+4 show work, please!!

Answers

Answer:

The answer is 6.2

Step-by-step explanation:

1) 2.2 + 4 =

2) 11/5 + 4 =

3) 11/5 + 20/5 =

4) 31/5 =

5) 6.2

The answer is 6.2

Find the domain of x: log2(1/64)=x

Answers

Answer:

-6

Step-by-step explanation:

Pls leave “thanks“ heart if I helped

When a decimal goes on forever without repeating, it is a(n) _____________ number.

Answers

Answer:

When a decimal goes on forever without repeating, it is an irrational number

Is this a function or no? May I please get an explanation aswell?

Answers

Answer:

no because the lines are not parallel

no it is not. they are just randomly scattered points, there is no rhyme or reason to the point placement so it cannot be a function

help me pls help mee

Answers

Answer: -5 + 9∫

Step-by-step explanation:

-5 + (8∫+∫) = -5 + 9∫

please give me a brainliest answer

a __________ determines how far a particular value is from the mean relative to the data set’s standard deviation.

Answers

A z-score determines how far a particular value is from the mean relative to the data sets standard deviation
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