Mathematics Middle School

find the sum or difference 7/8 + 9/16

Answers

Answer 1

Answer:

The answer is 23/16 but if you want it to be a mixed number, it is 1 7/16.

Step-by-step explanation:

Answer 2

The answer is 23/16, or in mixed fraction form: 1 7/16 (work shown out)

Related Questions

I need help on this equation, it’s solutions to inequalities. I need explanation on why it’s that answer, plz, thx

Answers

Answer:

k=69

Step-by-step explanation:

(plug in 69 instead of k)

69/3 = 23.

23+1=24

The ≥ sign means 21 has to be GREATER or EQUAL to 17.

Is it?

24≥17?

YES!

So, it works out.

Hope this helps.

If you still don't get it, just ask again, I'll explain it in more detail.

HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLS


A special machine is used at a construction site to dig holes. A hole is dug to a depth of 4.75 feet when the machine hits rock. The progress slows to 3/5 feet per hour of digging. The depth of the hole must be at least 12 1/2 feet by the end of the day to stay on schedule. What is the minimum amount of time the machine must continue at its present rate to complete the hole on schedule? Select from the drop-down menus to correctly complete the statement.

Answers

Answer: 12 h ; 45 m

Step-by-step explanation:

*Important: From what I can see in this image, this appears to be a test. If this is the case, please do not cheat. In any case, here is the explanation.

What we know:

Progress has been made to 4.75Rate of digging is 3/5 mphDepth must be at least 12 1/2We need to find the minimum amount of time the machine works

How to solve:

By setting up an algebraic equation, we can solve this.

Process:

Set up equation                            4.75 + 3/5x = 12 1/2Convert                                          19/4 + 3/5x = 12 1/2

                                                                95/20 + 12/20x = 250/20

Subtract                                           -95/20                 -95/20

                                                                               12/20x= 155/20

Isolate x via division                                       /(12/20) /(12/20)+Simplify                                                          

                                                                                         x= 12 11/20

Convert                                                                    12 h 33 m

Solution: 12 ; 45

The minimum amount of time taken by the machine will be 12 hours and 55 minutes.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

An exceptional machine is utilized at a building site to dig openings. An opening is dug to a profundity of 4.75 feet when the machine hits the rock. The advancement eases back to 3/5 feet each hour of digging. The profundity of the opening should be no less than 12 ¹/₂ feet before the day's over to remain on time.

Convert the mixed fraction number into a decimal number.

12 ¹/₂ feet = 12.5 feet

Let 'x' be the time. Then the equation is given as,

(3/5)x = 12.5 - 4.75

Simplify the equation, then we have

(3/5)x = 12.5 - 4.75

(3/5)x = 7.75

x = 12.9167

x = 12 + 0.9167 x 60

x = 12 hours and 55 minutes

The base measure of time taken by the machine will be 12 hours and 55 minutes.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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The Mongolian Giant Sunflower produces seeds that are over 1 inch long, grow up to 18 feet tall, and flowers that are 1 ½ feet wide. Each flower head produces 1,000 seeds. You decide to harvest the seeds at the end of the season so that you can sell them the following spring. If you save 8 flowers for harvesting, how many seeds is that? Write your answer in scientific notation.

Answers

Answer:

8*10^3

Step-by-step explanation:

The Mongolian Giant Sunflower produces seeds that are over 1 inch long, grow up to 18 feet tall, and flowers that are 1 ½ feet wide.  - All of this information is useless, all the question is asking is how many seeds do 8 flowers produce.

Each flower head produces 1,000 seeds. If you save 8 flowers for harvesting, how many seeds is that? - 1000*8 = 8000. 8000 is scientific notation is 8*10^3, as 10^3=1000, and 1000*8=8000 seeds.

Maria has already written Two-fifths of her 1,000-word essay. If she continues writing at the same pace of 6 1/2 words per minute, which expression shows the amount of time it will take her to write the rest of the essay?

1000 times two-fifths times 13/2
1000 times two-fifths divided by 13/2
1000 times three-fifths times 13/2
1000 times three-fifths divided by 13/2

Answers

Answer:

I think it's C

Step-by-step explanation:

if you multiply 1000 by 2/5 you would get 400 and if you divide 400 by 13/2 which is also equivalent to 6 and 1/2 you would get 15.38 which i assume is the time itll take her to finish her essay.... plus if u multiply 400 by 13/2 u get 2600 which i doubt it takes her like 43 hours to finish an essay of 1000 words

What is the average dance time per week for Suzette relative to her goal number of hours?
Relative to Suzette's goal, her average dance time over the last five weeks is ____ hours.

Answers

Answer:

-0.07

Step-by-step explanation:

(im not 100% sure so if u gte it wrong im sorry)

PLS HELP IM GONNA FAIL MATH
How long is the fence around a circular field with a radius of 340 ft.?

Answers

Answer:

so you are trying to find the circumference and the formula is 2πr

so the answer is 2 × 3.142 × 340 ft = 2136.56 ft

I think that's the answer

The answer would be 2 x 3.14 x 340ft = 2021.60

Gavin is moving into a new apartment that has a kitchen with an area of 50 square feet
What is the area of the bedroom?

Answers

Answer:

50

Step-by-step explanation:

i think I'm not sure. hope this helps.

Answer: WE CAN'T SEE THE PICTURES TO ANSWER YOUR QUESTION!

Step-by-step explanation:

A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate of 3°C per hour. What was the temperature:
1 hour ago?
3 hours ago?
Half an hour ago?

Answers

Answer:

For one hour ago, it would be 3 C, 3 hours ago, it would be 9 C, and half an hour ago, it would be 1.5 C.

Step-by-step explanation: It's quite straightforward. Since the temperature is dropping, and you want to find the temp. of earlier times, just add 3C to every hour (1.5 for a half) it was ago, to what the temperature currently is now. (0 C).

1 hour is 3 Celsius, 3 hours is 9, and half an hour is 1.5 :D

What is 43434 x 21387128930523122222 and the first person to answer will get a brainliest from me!!!!!!!!!!!!!1

Answers

Answer:

9.2892856e+23

Step-by-step explanation:

help ............................................

Answers

Answer: 50 units squared

explanation: you just use the formula for area which is Length x height. The length would be 10 and the height would be 5. so we input it into the formula 5x10=50

Answer:

the answer is 50

TIMES 5 and 10 to get your answer

A population of caribou in a forest grows at a rate of 3% every year. If there are currently 208 caribou, which function represents the number of caribou in the forest in t years?

Answers

Answer:

f(x)=208^0.3x

Step-by-step explanation:

Think of this as a graph. You start out with 208 caribou, which is your y intercept, as it is there when the growth is 0.

The generic formula fr an exponential equation is a^x.

A represents your initial value. In this case, its 208

x represents the growth. In this case, it's 0.3%.

Your equation should be f(x)=208^0.3x

Eli won 2 out of 3 chess games on day. At this rate, if he played 35 games, how many did he win? Write and solve a proportion

Answers

Answer:

23

Step-by-step explanation:

2/3 = x/35

3x = 2 × 35

3x = 70

x = 70/3

x = 23 1/3

Answer: 23

(PLEASE HELP) To feed 7 horses for 4 days, Mark needs 420 kg of grass. How many kilograms of grass does Mark need to feed 9 horses for 6 days?

Answers

Answer:

810kg is the answer

Step-by-step explanation:

Hope this helps:)

420 divided by 4 is 105 so each day 7 horses eat 105 kg of grass,
105 divided by 7 = 15 so each horse intakes 15 kg of grass per day

9x15=135
135x6 =810

Do the values in the table represent a proportional relationship?

x 1 2 3 4
y 2.5 5 7.5 10

Select from the drop-down menu to correctly complete the statement.
All of the y-values a constant multiple of the corresponding x-values, so the relationship

Answers

Answer:

yes every values are increasing constantly by 2.5

Answer:

Step-by-step explanation:

Note that for each unit increase in x, y increases by 2.5.  The constant of proportionality is therefore 2.5:

y = 2.5x

All of the y-values are a constant multiple of the corresponding x-values, so the relationship is a proportional one.

Please don't spam. I will be so ****** if you do

Answers

Answer: please don't be ********* at me also the answer is c

C is the correct answer

include explanation pls

Answers

Answer:

less than mean subtraction

twice means 2 times

Step-by-step explanation:

if the amount raman collects is x, and kusa collects 5 less than 2 times the amount raman collects, that would mean 2x-5.

I don't get this I need help

Answers

Answer:

6 dollars per person a

then 20 then and the party host and the helpers b

c that is asking what is the total cost in all if it was a profit or no

Someone help me with this please, I really need help, and it's due tmrw...PLEASE

Answers

Y = 2/1x + 6


I did the work in this photo:

Answer:

y=2x+6

I started with the simplist equation for the first set (0,6) of y=X+6 and then tested it out for the second set (1,8) which didn't work. I then ajusted it so it would work with the second set by doing y=2x+6. Lastly, I tested this equation with all of the points and it worked for them all.

HELLLLLLP RNNN PLSSSSSSSSSSSS

Answers

Answer:

D

Step-by-step explanation:

5/6 times 13 is 10 5/6. No

4 times 13 is 52. Yes

3/4 times 13 is 9 3/4. No

10/10 times 13 is 13. Yes

The expressions greater or equal to 13 are B and D.

What is an expression?

An expression in math is a statement having minimum of two numbers, or variables, or both and an operator connecting them.

Given are expressions we need to determine expressions having values equal to or greater than 13,

So,

5/6 and 3/4 are numbers less than 1 if we multiply any number with them it will decrease its value,

So, the expression 4 x 13 and 10/10 x 13 will be the expressions having values equal to or greater than 13.

Hence the expressions greater or equal to 13 are B and D.

Learn more about expression click;

https://brainly.com/question/14083225

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what is this solid figure?

Answers

Answer:

Cylinder

Step-by-step explanation:

STEP ONE:

Identify base. It is a circle.

STEP TWO:

Identify the top of the figure. If it is the same as the lower base, then it is a cylinder.

So, this shape is a cylinder.

Solve for m.

−48=12(m+4)

Enter your answer in the box.

Answers

Answer:

-8

Step-by-step explanation:

First, you distribute the right side

-48 = 12(m+4)

-48 = 12(m) + 12(4)

Simplify:

-48 = 12m+48

Solve for m

-96 = 12m

m=-8

Answer:

-8

Step-by-step explanation:

-48/12 = m+4

(-48/12) -4 = m

m = (-4) - 4

m = -8

i neeed help. this is due today

Answers

Answer:

I’d say letter A

Answer:

I think is D

Step-by-step explanation:

Because that part explains the most what will happen

A car dealership sold 153 cars in 3 months. At what rate did the dealership sell cars in cars per month?

Answers

Answer:

51

Step-by-step explanation:

Divide 153 by 3 and you get 51

The answer would be 51

Given: x + 5 ≥ 10. Choose the graph of the solution set.

Answers

Answer:

We'll want to end this one with x ≥ another value.

Step-by-step explanation:

So, subtract 5 from both sides.

x+5≥10

-5    -5

x≥5

So, x must be greater than or equal to 5.

help help help help help help help help help help help help help help help help help help help help help help

Answers

Answer:

I think it could be the first one orthe forth one. It may be those ones.

It is A because all of them are being multiplied by 8 so 5 x 8 = 40 so the answer is A

Please help me solve all these parts and you get brainlest

Answers

Answer:

1. is not.    2. 13

Step-by-step explanation:

Answer:

Is not. 2.13

Step-by-step explanation:

How is evaluating an expression with fractions like evaluating an expression with whole numbers? How is it different?

Answers

Answer:

Full explanation

Please help! This really doesn't make sense to me. I NEED HELP!!!!

Answers

Find the scale of the two similar sides with known dimensions:

45/27 = 1 2/3

Figure A is 1 2/3 times larger than B. Now multiply the similar side of B to find x:

x = 18 x 1 2/3

x = 30

Answer: x = 30

Answer: 30

Step-by-step explanation:

(This is a similarity question)

So,

X/18 = 45/27

Then cross multiplication

X= 45×18/ 27

X= 30

Write an equation in slope-intercept form for the line with slope -2 and y-intercept 1. NO LINKS.

Answers

Answer:

y=-2x+1

Step-by-step explanation:

First you get the formula y=mx+b

m=Slope

b= Y intercept

so y=-2+1

First you get the formula y=mx+b then, m=Slope , b= Y intercept
the answer would be :: y=-2+1

I NEED HELP PLEASE I HAVE POINTS

Answers

Answer:

17, 17, 1 13/21

Answer:

1 13/21

Step-by-step explanation:

First, Multiply the 4 and 3 by 7 to get 28/21. Then Multiply the 2 and 7 by 3 to get 6/21. Add them up and you get  34/21. To convert, divide 34 and 21 to get one with the remainder of 13. The final answer is 1 13/21.

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