Mathematics Middle School

Which expression has a value of 90? (10 points)

a
3,600 ÷ 50
b
5,400 ÷ 60
c
6,400 ÷ 80
d
7,200 ÷ 90

Answers

Answer 1

Answer:

D

Step-by-step explanation:

3x90=7200 ÷ by 3=90 that how you get it

Answer 2

Answer:

b 5,400 ÷ 60

Step-by-step explanation:

knoweth thay multiplication table.

what are the multiples of 9 ?

1×9 = 9

2×9 = 18

3×9 = 27

4×9 = 36

5×9 = 45

6×9 = 54

7×9 = 63

8×9 = 72

9×9 = 81

10×9 = 90

because multiples of 10 follow the same structure, we just add 0s.

so, the multiples of 90 are the same numbers as above, they just have a 0 at the end.

and if we also multiply the first numbers (1 ..10) by 10, the results get a second additional 0 at the end.

so, when we look at

3600

5400

6400

7200

we actually look at

36

54

64

72

36 = 4×9

so, 3600 has to be divided by 40 to result in 90.

but it is divided by 50. so, no.

54 = 6×9

so, 5400 has to be divided by 60 to result in 90.

and it is. so, yes ! 5400 ÷ 60 = 90

64 is no factor of 9 at all. so, no.

72 is 8×9

so, 7200 has to be divided by 80 to result in 90.

but it is divided by 90. so, no.

Related Questions

Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator part 2

Answers

Answer:

64/8=8/1which in ratio it is 8:1

Answer:8/1 is your answer

Step-by-step explanation:

Which is the correct answer

Answers

Answer:

B

Step-by-step explanation:

A is just moving the shape left

C is flipping the shape the opposite direction

B rotated the shape

If you mean, Rotating the whole square, then yes. The answer is "B"

BUT! If you mean rotating the triangle in it-self, THEN the real answer is "C"!

DON'T GET IT WRONG!! Best of fortune! : )

Help
Evaluate.

(2a−7)÷b when a=8 and b=3

Enter your answer in the box.

Answers

Answer:

3

Step-by-step explanation:

So you have to take the equation, (2a - 7) ÷ b, and you must plug in the numbers for the variables.

(2a - 7) ÷ b

(2(8) - 7) ÷ 3

(16 - 7) ÷ 3

(9) ÷ 3

= 3

Hope this helps!!! :)

Help
Evaluate.

(2a−7)÷b = 3

I NEED HELPPPPP!!!! THIS IS SO HARDDDD

Answers

Answer:

The answer is 28

Step-by-step explanation:

I hope this helps! Have a good day!

Answer:

28

Step-by-step explanation: By using PEMDAS (parenthesis, exponents, multiply, divide, add, subtract).

Use the table to answer each question below.

1. How many minutes will it take to run 1 mile?

2. How many miles could be ran in 14 minutes

3. How many miles could be ran in 28 minutes?

Answers

1. 35/5= 7 minutes
2. 7 minutes= 1 mile so 14 minutes is 2 miles
3. 28/7= 4 miles
1.35/5= 7 minutes
2.7 minutes= 1 mile so 14 minutes is 2 miles
3. 28/7= 4 miles

SOLVE CORRECTLY AND SHOW WORKKKK!

Answers

Answer:

t= 2

Step-by-step explanation:

Input the given number in the formula given.

110= 55t

divide 55 from both sides

110/55 =55/55t

which then gives you

2 = t

Solve for t and h will get 2
110=55t//:55
t=2

HELPPPP
Ravi wants to buy a new guitar that costs $129.99. He has $27, and decides to give music lessons to earn the rest of the money. Ravi decides to charge $22 per lesson. Which inequality would best help Ravi find m, the number of lessons he would need to give in order to buy the guitar?

Answers

Answer:

Step-by-step explanation:

A. 22m + 27 129.99

27 + 22m ≥ 129.99

this is because ravi needs AT LEAST $129.99. (it could be = too if thats an option, but you said inequality so i think its this!!)

ravi already has $27, and he just needs to charge music lessons to get the rest, which is $22 per m (music lesson).

so, 27 + 22m ≥ 129.99!!

i hope this helps!! im sorry im bad at explaining things! <33

In the diagram shown, what is the ratio of shaded parts to unshaded parts?

1 shaded rectangle and 5 unshaded rectangles.
1 shaded to 5 unshaded
5 shaded to 1 unshaded
6 shaded to 5 unshaded
1 shaded to 6 unshaded

Answers

1 shaded to 5 unshaded

un shade 1 to unshade 5

How much interest is earned on $128.51 at 1.5% for four years?

Answers

Answer:

Step-by-step explanation

5% x $1,000 x 4 = $200

I=PRT
I=(128.51)(1.5%)(4)
I= 7.71
(make sure to add percentage when putting in calculator)

What is the division problem represented by this model?

Answers

Answer: 110 divided by 46

Step-by-step explanation: You find the amount of tiles total (10x11) then you count the amount of colored tiles(46). You then divide 110 by 46

Solution: 42➗7=6

Explanation: In total there are 42 colored blocks in the model that are separated into 7 groups, each group contains 6 colored blocks. In conclusion 42 divided by 7 equals 6.

Please I need points

A poster tube storage in the Sahel of a cylinder has a diameter of 3.5 inches and a volume of 122.5(pi) Cupid inches. What is the height of the poster storage tube?

Answers

Answer: 12.7

Step-by-step explanation:

r=d/2

3.5/2=r

r=1.75

v=pir²h

122.5 =piR²h

122.5=pie1.75²h

The frist thing to solve for r sense exponents come before multiplication in bedmask

122.5 =pi3 .06g

so then it's pie times r

122.5=9.61 *h

122.5/9.61=h

12.7=h

Answer: h≈12.73in

Right cylinder

Solve for height

h≈12.73in

d Diameter

3.5

in

V Volume

122.5

in³

h

r

h

r

r

h

A

b

Using the formula

V=π(d

2)2h

Solving forh

h=V

π(d

2)2=122.5

π·(3.5

2)2≈12.7324in

Step-by-step explanation:

How do u find a equation passing through the line in a graph, I will give an example (-2,0) and (0, 5), I don’t understand how to calculate it can u please give me a easy way to do it for me , I’m in the 8th grade

Answers

Answer:

y = 5/2x + 5

Step-by-step explanation:

To find the equation, you first need to find the slope. You can do this by subtracting the two y coordinates (the two last numbers) and using that as the numerator (the top number of the fraction), and then subtracting the two x coordinates (the two first numbers) and using that as the denominator (the bottom number of the fraction). You then have the fraction -5/-2, which can be changed to 5/2 because they are both negative numbers. That is your slope. You then need to find the y-intercept (where the line connects with the y-axis). To do this, you need to figure out what the y (the second number) is when the x (the first number) is 0. In this example, you can already see with the second set of coordinates that the y-intercept is 5 because the x is 0. When this is not easily shown, you can figure out the y-intercept with a table. Sorry if I made it sound too complicated :)

Y=5/2x+5

(Totally didn’t steal the other persons answer). ;)

Can someone tell me where to plot the points? (due tomorrow) thanks!​
Also can you explain to me if this is proportional or not? I need a clear reason. Thanks so much!

Answers

Step-by-step explanation:

ok do you see where x is on the graph

you would put 0 3 times up and y would be where

5 is on the graph you would put 3.5 times up

HOPE IT HELPS

Here are the answers
0,2
2,5
3,5.5
1,3.5

−5=x11 need help asap

Answers

Answer: X= -1.15755791. . .

-5/11 as a fraction or 0.4545… as a decimal. The 45 is repeating

What is the equation if the line shown in this graph?

Answers

y = 1

The line has no slope, just a y-intercept which is +1

Answer: y = 1

The line has no slope, just a y-intercept which is +1

Question on photo

1.
A. Congruent
B. Similar but not congruent
C. Not similar

2.
A. Is
B. Is not

Answers

Answer:1.

A. Congruent

2. A. Is

Step-by-step explanation:

it's only being rotated meaning the action of rotating around an axis or center. it wasn't dilated so its shape didn't change.

Walter's homemade catapult threw a ball
4 in. farther than 3 times the distance
that Jim's catapult threw the ball. If the
difference between the two distances
was 56 in., how far did Walter's catapult
throw the ball? Write as a equation

Answers

Answer:

56 ÷ 7 = 8

Step-by-step explanation:

4 + 3 = 7

56 ÷ 7 = 8

hopefully thats correct.

The equation would be 56/7=8

A middle school student took 466 pictures in 6 1/3 weeks. Find the student's picture taking rate in pictures per week
Pls put in a fractions ;)

Answers

Answer:

the answer to ur problem is

19/3

19/3 is the answer hope that helped

WILL MARK BRAINLIEST TO THE FIRST ONE TO GET CORRECT ON THIS ASAP!!!!!!

Answers

Answer:

c

Step-by-step explanation:

30 times 6

Mark me on brainliest please

Its c I took the test hope this help

I need help getting the slope of the graphs. I just need that because I can do the ones in text and then order the answers from least to greatest, but I don't know how to do the graphs

Answers

Answer:Find the Slope from a Graph

Identify rise and run from a graph

Distinguish between graphs of lines with negative and positive slopes.

Step-by-step explanation:Find the slope of the lines

x

=

a

and

y

=

b

Recognize that horizontal lines have slope = 0

Recognize that vertical lines have slopes that are undefined

Jake claims that, when two numbers are multiplied together, the product could be less than both factors.

Which of these equations and statements could he use to support his claim?

Answers

Answer:

The first one.

The first one because it supports the question

pls try to do it fast

Answers

Answer:

4 1/3 is the same as 11 decreased by a number

Step-by-step explanation:

is the same as means =

decreased by means -

a number means x

so 4 1/3=11-x

Answer: 4 1/3 is the same as 11 decreased by a number

Step-by-step explanation:

Go down the line. 4 1/3 match up in the sentence and the equation. Is the same as is another way of saying equal to, so that works. Then, there are both 11s so that checks. Finally, decreased is the same as minus or subtract, and x is a number.

A shipping container will be used to transport several 140-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 28000 kilograms. Other shipments weighing 13900 kilograms have already been loaded into the container. What is the greatest number of 140-kilogram crates that can be loaded into the shipping container?

Answers

A shipping container will be used to transport several 140-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 28000 kilograms. Other shipments weighing 13900 kilograms have already been loaded into the container. What is the greatest number of 140-kilogram crates that can be loaded into the shipping container?

Elijah is saving for a summer vacation in Florida that costs at least $250. He has $150 saved and hopes to lifeguard at $8 per hour to earn the rest of the money. Which inequality below best describes the number of hours, h, he must lifeguard to have enough money for the trip?

I just need the inequality!

Answers

Answer:

[tex]150 + 8h \geq 250[/tex]

Hope this helps :)

150+8h _> 250 is answer

Jin’s mother estimates there is a half gallon of fruit punch remaining in the container. There is actually 72 ounces of fruit punch in the container. What is the percent error of Jin’s mother’s estimate, rounded to the nearest tenth?

needed help

Answers

Step-by-step explanation:

6.28% because of the sealing

the percent error of Jinn's mother's estimate is 11.12%.

50 Points Solve six times three-sixths equals blank.

Leave your answer as an improper fraction.

thirty-six thirds
eighteen-sixths
eighteen-sixteenths
three thirty-sixths

Answers

Answer:

3

Steps

[tex]6\cdot \frac{3}{6}[/tex]

Cross multiply:

=18/6 = 3

eighteenth-sixths (the third one)

6/1 times 3/6 = 18/6

Is it a deal? Solve the question.

Answers

Answer:

Step-by-step explanation:

Use Microsoft Bing

Worse: $15 for 9
Same: $11.79 for 9
Better: $9 for 9

What is the value of 4/7 x 0.3 / 1/6?

Answers

Rewrite as

[tex]\frac{4}{7} *\frac{3}{10} /\frac{1}{6}[/tex]

PEMDAS says do multiplication first

When multiplying fractions, just multiply across.

12/70   / 1/6

When dividing fractions, KEEP CHANGE FLIP.

Keep one of the fractions, change the sign to multiplication, flip one of the fractions.

12/70  * 6/1

72/70

1 2/70

Option D

1  1/35

The answer will be (D) 1 1/35

Please help me. I need the answer if its diameter, radius, or circumference. After i pick one it asks the calculations. Thanks!​

Answers

Radius because the tip of the slice is the middle of a pizza and the crust is the outer ring of a circle
Radius because radius is half line and diameter is whole line.

the sales for crunchtastic candy bars rose from $4,000,000 to 4,900,000 find the percent of increase in sales

Answers

Answer:

22.5% increase

Step-by-step explanation:

($4,900,000 / $4,000,000) x 100 = 122.5%

122.5% - 100 = 22.5% increase

The percentage increase is 22.5%
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