Mathematics Middle School

The white chalk of a soccer field is 40% erased, how long is the chalk line?
a. 100m
b. 480m
c. 192m
d. 120m

The White Chalk Of A Soccer Field Is 40% Erased, How Long Is The Chalk Line?a. 100mb. 480mc. 192md. 120m

Answers

Answer 1

Answer:

120m

Step-by-step explanation:

40% of x = 48

40/100*x= 48

x= 48*100/40

x = 120m

Related Questions

15 POINTS AND BRAINLIEST
Which data set could be graphed as a set of points connected by a straight line?

A) a book to student ratio of 10 to 1
B) a 1 to 7.50 ratio of CDs to dollars
C) a time to distance ratio of 1 to 5
D) a 3 to 1 ratio of cups to straws

Answers

Answer:

C.)  time to distance ratio of 1 to 5 (I think)

Answer:

C) a time to distance ratio of 1 to 5

Step-by-step explanation:

Reposting question because I didn't get the correct answers last time, Write an equation of the line in slope-intercept form. picture attached

Answers

Answer:

I think y=1x+2

Step-by-step explanation:

y=mx+c

m=(y2-y1)/(x2-1)

I just chose (0,2) and (-3,-1)

-1-2=-3

-3-0=-3

-3/-3=1

y=1x+c

c= y-intercept and (0,2) is the y-intercept so

y=1x+2

I think

Y=1x+2
Because 1 is the slope and 2 is the y intercept

A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour. What is Elena's running speed?

Answers

Answer:

25

Step-by-step explanation:

Elena's speed was 25mph

1/4 x 1/20

Answer:

5mph

Step-by-step explanation:

help me please !!!!!!!

Answers

Answer:

h=14

Step-by-step explanation:

h-24=-10

h=-10+24

h=14

I had also gotten h=14

Which of the following is true about the expression above? 2,382-768/4

A.
The given expression is 4 less than the value of (2,382 - 768).

B.
The given expression is one-fourth the value of (2,382 - 768).

C.
The given expression is 4 divided by the value of (2,382 - 768).

D.
The given expression is 4 times the value of (2,382 - 768).

Answers

Answer:

B

Step-by-step explanation:

You must do the math step by step.

The answer to ur asked question is b

witch ones are bigger.
a. 5/9 or 11/18

b. 3/8 or 4/9

Answers

Answer:

for a it would be 11/18 and for b it would be 4/9

Step-by-step explanation:

This is because I did the same butterfly method. 5 times 5 times 18 which is 90 for 5/9 and 9 times 18 is 99 for 11/18, you can also write it as 5/9 and 11/18 but cross multiply. This is also what I did with the second one.

b, the smaller the number the bigger the fraction.

The mean of a set of numbers is found by adding the values and dividing by the number of values. What is the mean of this set of gymnastic scores?


7.4, 7.1, 3.3, 9.1, 8.2

Answers

Answer:

Step-by-step explanation:

You have to add all of those scores together and then you divide by the number of scores to get the mean.

the mean is 28.54. You have to add all of them and then divide by the amount of numbers.

I need help again lol

Answers

Answer:9

Step-by-step explanation:

Sasha baked 21 cookies with 3 scoops of flour. How many scoops of flour does Sasha need in order to bake 28 cookies? Solve using unit rates.

Answers

4 because 21 is 3x7 and 28 is 4x7

Help for brainliest!!

Answers

Answer:

the first is 12

18

5.1

4 tulips per minute

9.50

Step-by-step explanation:

PLZ BRAinlest

4150 people show up to watch the tiger eat on most days. Today there were 15% few people. How many people were there today? PLSS HELP IM ABOUT TO DIE

Answers

There will be 3527.5 people the tiger ate some

Solve: Mavrick has a 12 3/4 foot long streamerto decorate the hallway at his school.
he cuts off 3/8 of a foot from each end to fit in the hallway. his principle asks him to
make another streamer that is 5/6 as long.How long is the new streamer?

Answers

Answer:34

Step-by-step explanation:

Answer:

12.375

Step-by-step explanation:

do 12 3/4 - 3/8 = 12.375

AHHHH HELP MEH PLZ I NEED HEP RN AGAIN !!!

Answers

wait what is the question?

last question!!!!!!!

Answers

49 pennants 1/3 x15 =30 so plus 1 and 2/3 that is 5 so it is 35 boom

A passing grade is a 70, how many points are they away from passing for this report card? They need 2 more points to pass the report card

Answers

Umm you practically salve it

Matthew had to make a bridge for his math class. It had to be at least 1 1/2 feet long. Harold made a bridge that was 2/13 times as long as Matthew’s. Write and solve an equation that will help you figure out how long Harold’s bridge was. Explain the steps you took to solve the problem.

Answers

Answer:

Step-by-step explanation:

2 / 13 = 15.38% or 15.38..... If Matthew's bridge is 1 1/2 feet long which is 45.72cm then 45.72 + 15.38 = 61.1cm > convert into feet > 1.55194 ft.

A group of friends is roping off a soccer field in a back yard. A particular full-size soccer field is a rectangle with a length of 100 yards and a width of 50 yards. To fit the field in the back yard, the group needs to reduce the size of the field so its perimeter is 60 yards.
What is the Area of the soccer field in the back yard?

Answers

Answer:

200 ft

The original perimeter would be 300, so divided by 5, it would be 60. 100/5 is 20, 50/5 is 10. 20*10 is 200.

Can someone please help me this is confusing

Answers

Answer:

2.25

Step-by-step explanation:

Each jar would weigh 2.25 ,by adding up all numbers and diving your sum by the total number of jars ( 13.5 / 6 ) would equal to 2.25

2.25, you have to make sure you use the table to get your answer. hope this helps!

Subtract. 7 4/10−1 2/10 Write your answer in simplest terms.

Answers

The answer is 6 1/5.

Answer:

7 4/10 = 11/10

1 2/10 = 3/10

11/10 - 3/10 = 8/10

8/10 // 2

4/5 :)

Alvin has a rectangular lawn that he is going to reseed. The length is 42 feet and the width is 25 feet. Each bag of grass seed covers 50 square feet. How many bags of grass seed will Alvin need? *

Answers

Answer:

Step-by-step explanation:

The area of the lawn will be

42*25=1050 ft^2

if each bag covers 50 ft^2

1050/50=21

21 bags

21 bags, because math and because calculator, trust.

Stephanie draws a map of her neighborhood. She uses a scale in which 1 inch equals 5 miles. What distance on Stephanie's map should represent the 3 miles between her house and the park.

Answers

Answer: 3/5.

Step-by-step explanation:3/5 inches because every inch is 1/3 inches

Answer:

3/5 inches because each mile is 1/5 inch

Jorge's lunch cost $19. He left a 22% tip.

What was the total cost of the lunch with tip?

Enter your answer in the box

Answers

Answer:

$23.18

Step-by-step explanation:

Answer:

23.18

Step-by-step explanation:

first find 22% of $19.00= 4.18

19+4.18

Which two quantities are in a proportional relationship, and why?

Answers

Answer:

[tex]\frac{3}{4} =\frac{18}{24}[/tex] The ratios are the same .

Step-by-step explanation:

When  y ∝ x then,

[tex]y=k*x[/tex]

When y ∝ 1/x then

[tex]y=\frac{k}{x}[/tex]

while k is a constant.

Answer:

3/4 and 18/24; the ratios are the same.

Step-by-step explanation:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "three is to four as eighteen is to twenty-four."

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Here, 3 and 24 are the extremes, and 4 and 18 are the means. Since the cross products are both equal to 60, we know that these ratios are equal and that this is a true proportion.

witch is bigger

1/4
or
2/7

Answers

Answer:

2/7

Step-by-step explanation:

this is because you can simply do the butterfly method and multiply 4 times 2 which is 8 for 2/7 and 7 times 1 for 1/4 which is 7 so 2/7 is greater than 1/4

x-y=3

A) Work out the value of 5(x-y)
B) Work out value of 2x-2y
C) Work out value of y-x ​

Answers

Answer:

B) work out the value of 2x-2y

Step-by-step explanation:

Hope this helps

A) 5(x-y)
= 5(3)
=15
B) 2x-2y
=2(x-y)
=2(3)
=6
C)y-x
=3
Explaining
At the top of the question it is written that x-y =3 so in A we place x-y by 3 ad solve the multiplication in B we take 2 common and then place the value of x-y with 3
In C we just put the 3
HOPE THAT HELPS

What is the volume of this rectangular prism?


16 cubic centimeters


96 cubic centimeters


160 cubic centimeters


192 cubic centimeters

Answers

Answer:

96 cubic centimeters

Step-by-step explanation:

v=lwh

v=2(8)6= 96

Answer:

96 cubic centimeters

Step-by-step explanation:

Given,

Dimensions of the rectangular prism are = 2cm, 8cm, 6cm

Therefore, Volume of that rectangular prism = l × b × h

= 2cm × 8cm × 6cm = 96 cubic centimetres (Ans)

this one is confusing

Answers

Multi all of them together

Answer:

You are only working with the shaded region which is the 10cm at the bottom and the side so its 10x10 which is 100

Step-by-step explanation:

please help me out! the question is
Lin subtracted 3 x 2 then 3 x 1 and lastly 3 x 9 earlier Andre subtracted 3 x 200 and then 3 times 10 and lastly 3 x 9 why did they have the same quotient?

Answers

They had the same quotient because both of those equations are equal

Solve, -5 3/4 - 3/12

Answers

-6

hope this helps! i checked my answer with a calculator so i hope this is correct. if not i apologize
-9 1/4 because subtracting from a negative is like adding a positive. It’s the right answer

Caleb cuts a large foam sphere with an 18-inch radius in half. What is the area in square inches of the cross section of the sphere in terms of π?

Answers

I think u need to divided into 18divided by 1/2

Answer: 9

Step-by-step explanation:

u need to divide 18 inches by 2 soooooooo its 9

hope it helped

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