Mathematics Middle School

Explain how to calculate a number that is equal to 2.1/1.5

Answers

Answer 1

Answer:

1.4

Step-by-step explanation:

first you move the decimal to make both whole numbers

then divide 21/15 = 1.4

hope this made sense

sorry if it didn't

Answer 2

Answer:I got thins from my frien or if it’s wron its Not my fault 2.1/1.5 = 7/n

Step-by-step explanation:

Related Questions

A high school math teacher is grading her students' tests. The teacher spends about 4 minutes grading each test. The teacher has a total of 176 students. How long will it take the teacher to grade the tests?

A.8 hours and 34 minutes
B.6 hours and 44 minutes
C.10 hours and 55 minutes
D.11 hours and 44 minutes

Answers

The answer is D because , 4x176 = 704 which you divide by 60 because thats how many minutes are in an hour which should come out to 11 hours

Sarah need 7 tickets, how much does it cost if 9 tickets cost 159 dollars

Answers

Answer:

I think it's $123

Step-by-step explanation:

good luck!!!and have a great day/night (different time zones)

The answer is 123.62 roughly. To find this, divide 159 by 9 to find the cost of the tickets. Then, multiply the cost of the tickets by 7 to get your answer.

The measures of two supplementary angles have a ratio of 4:5. What is the measure of the larger angle?

The measure of the larger angle is
°. what is the angle

Answers

First, we know that all supplementary angles add to 180°. Then, since the angles are in the ratio 4:5, we can also represent these angles as 4x and 5x respectively. Both angle measures have the same variable (x) because no matter how large the angles are, they must have a common multiple because they are in a ratio. We can then write the formula 4x+5x=180 and solve for x. First, you combine like terms to get 9x=180. The you divide both sides by 9 to get x=20. Then, we can find both angles to be 80 (4*20) and 100 (5*20) by plugging them into 4x and 5x.

Got the answer from sdmatera (i’m giving creds)

Bob bought five red hats and two blue hats for $17.50. Each hat had the same price. Which equation would be used to find the cost of one hat? *

Answers

5x+2y=17.50
x=blue hats y= red hats
5x+2y=17.50
X= red y=blue

Plz answer these questions. If ur gonna answer answer them all or else i will report and u wont get brainliest.

Answers

Answer:

Step-by-step explanation:

Answer:

1: 1.5, a decrease

2: 5, decreases, 4.1, decreases, 4

3: 694, 708, other, faster

4: A, 45

5: B

Step-by-step explanation:

Surprised that I'm not stealing points?

need help with these

Answers

1. The answer for question 1 is 279936
1) -279936
2) -24a^10
3) -35a^5b^5c^5
4) 64

Little help pls. I don’t know the answer

Answers

Answer - 65.11

First find the area of the rectangle which is 5.5x7.7= 41.35
And then find the area of the small section of the circle using πr^2 and then divide it by 4 because it’s only 1/4 of the circle which will equal 23.768.. and add them together which will equal 65.11
I’m sorry if I’m not correct though I could be wrong
I agree, the answer is 65.11 :)

A bucket of Unifix cubes has 5 red, 6 brown, 5 blue, 4 yellow, and 5 green. Mrs. Brothers is going to randomly
select one cube, not replace it, and then she will select a second cube. What is the probability that both cubes will
be brown?

Answers

Answer:

the third

Step-by-step explanation:

The third
4/25 you got this

HELP ASAP TYSM IF U DO!!!
How would you graph the solution set of ≤ -18?

closed circle on -3 and shaded to the left
closed circle on -108 and shaded to the left
closed circle on -3 and shaded to the right
closed circle on -108 and shaded to the right

Answers

Closed circle on -3 and shaded to the left as going left are to the negligible numbers :)
Closed circle on -3 and shaded to the left

An air hockey table that normally sells for $158.99 is on sale for 75% of the regular price. What would be a reasonable amount for the sale price?

Answers

Answer: $119.24

Step-by-step explanation: 158.99 times 0.75 = 119.24

119.24
(Checked it with a calculator, is correct)

A chess player played a total of 20 games. If he won 5 of the games, What is the ratio of games he lost to games he won?

Answers

15:5


Hope this help!!!!
Brainliest plzzzzz

Answer:

1:4

Step-by-step explanation:

every 4 games he won 1 game

The table below shows the amount a jacket would cost with various discounts.

What is the original cost of the jacket?

Answers

Answer:

somewhere near $100

Step-by-step explanation:

I'll give brainliest if someone helps me.

Answers

Answer:

Scale Drawing - Two dimensional model of an object.

Scale Model - Three dimensional model of an object.

Step-by-step explanation:

20 - 12/x = 16 ; x = 3

Answers

Answer: 20−12/3=?16

16=16

True

Step-by-step explanation: hope this help:)

Answer:

20-12 = 8.

If 8 / x = 16, then 3 at x;

8/3 =16.

I hope you will like it.

raj estimates that the length of his bicycle is 66 inches. is this reasonable? why or why not

Answers

U S E M A T H W A Y T R U S T

Myra's sailboat has a small glass window that allows light to enter the cabin. The window is shaped like a rectangle with semicircles on both ends. The dimensions are shown in the diagram below.

Which measurement is closest to the area of the glass window in square inches? Use 3.14 for pi?

A. 3 square inches
B. 153.48 square inches
C. 103.24 square inches
D. 253.96 square inches

Answers

I’m pretty sure it’s C

Answer:

C.)

Step-by-step explanation:

Add the area if the rectangle, to the area of the two semi-circles.

Area of Rectangle: L: 6[tex]\frac{5}{8}[/tex] in times W: 8 in = 53 in

Area of Semi-circle: [tex]\frac{1}{2}[/tex](πr2): [tex]\frac{1}{2}[/tex](π(4)2) = 25.13  

(r is always half of diameter (d) so r=4)

53 + 25.13 + 25.13 = 103.26

cant figure this out help please

Answers

Answer:

5. is 75 and 6. is 60

Step-by-step explanation:

5. 150/2 which is the first coordinate is 75

6. 180/3 is 60

5 is 75 and 6 is 60!!

50 POINTS WILL MARK BRAINLIEST

Answers

Answer:

The tower wall 10 meters tall.

It landed at 6 seconds.

The highest it got was 95 meters.

Step-by-step explanation:

Hope it helps.

Answer:

Thanks for the points

Step-by-step explanation:

The tower wall 10 meters tall.

It landed at 6 seconds.

The highest it got was 95 meters.

Can 2 or more different triangles have the same area?

Answers

Answer:

yes

Step-by-step explanation:

What equation matches the table?

Answers

g = f + 10

The table is increasing by 10. Therefore the equation that represents this is
g = f + 10
Ok answer :88818288282828

Choose the inequality that shows x is bigger than 2.

A.2 x
C.2≤x
D.2≥x

Answers

Answer:

C

Step-by-step explanation:

The answer is C


Got you young jit

A family wants to buy a new computer. The regular price is $849. The store is offering a 20% discount, and a sales tax of 6% is added after the discount. What is the total cost of the computer?

A. $169.80

B. $679.20

C. $719.95

D. $789.75

Answers

Answer:

C

Step-by-step explanation:

because

The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and length of this rectangle?
PLS HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

1212

Step-by-step explanation:

121212212

An architect is creating a scale model of a building with a rectangular base. The ratio of the
building's base length to the scale model's base length is 110 in : 3 in. If the length of the base
of the scale model is 9 inches (in), what is the length of the base of the building to the nearest
foot?
Answer:

Answers

Answer: 28

Step-by-step explanation: 110in/ 3in = L/ 9in

Since we’re solving for L we see that L= 110in/ 3in x 9in = 330in.

Since there are 12 inches in 1 foot, you can determine the number of feet in the length of the building base by dividing the total number of inches by 12.

330/12 = 27.5 which rounds to 28 feet

The length of the base of the building is approximately 27.5 feet to the nearest foot.

To find the length of the base of the building, we can set up a proportion using the given ratio and the length of the base of the scale model.

Let's denote the length of the base of the building as 'x' feet.

The ratio of the building's base length to the scale model's base length is given as:

110 in : 3 in

To convert the scale model's base length to feet, we divide it by 12:

9 in ÷ 12 = 0.75 ft

Now we can set up the proportion:

110 in / 3 in = x ft / 0.75 ft

Cross-multiplying, we have:

110 in * 0.75 ft = 3 in * x ft

82.5 ft*in = 3x ft

To solve for x, we divide both sides by 3:

82.5 ft*in / 3 = x ft

27.5 ft = x ft

Therefore, the length of the base of the building is approximately 27.5 feet to the nearest foot.

To know more about length click here :

https://brainly.com/question/13251554

#SPJ2

please help me with this for brainliest

Answers

Answer:

C

Step-by-step explanation:

Considering you want to be isolating "Z" you want to add 318 to the negative 318 to completely remove it. Leaving you with Z=471

Answer:

C

Step-by-step explanation:

because you need to do 318 - 153 and that equals 165 but your answer is C

Identify the transformation from the original to the image and tell if the two figures are similar or congruent. The original figure (ABC triangle) has continuous lines, the image has dashed lines.

Answers

Answer:

Step-by-step explanation:

It’s the last one!!

two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. Henry´s balloon begins 30 miles from the town and is 48 miles from the town after 2 hours. The distance of Tasha´s balloon from the town is represented by the function y= 8x +20.

which balloon was farther from the town at the beginning, and which traveled more quickly?

Answers

9514 1404 393

Answer:

  D.  Henry's started farther, went faster

Step-by-step explanation:

Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...

  y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value

__

Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.

__

Henry started farther from town and traveled faster.

Answer:Its A

Step-by-step explanation:

The expression 5 1/2x + 6 represents the perimeter of

the rectangle shown. Write an expression that

represents the length of the rectangle

Answers

L=bxh|2 :) give me brainliest pls
Length=[ 5 1/2x + 6 - 2( 1/4x+2 ) ]*1/2
=[ 11/2x + 6 - 1/2x - 4 )*1/2
=( 5x + 2 )*1/2
=5x/2 + 1

which of these systems of linear equations has an infinite number of solution

Answers

Answer:

A

Step-by-step explanation:

ASAP PLZZZ HELP GIVING BRAINLEST TO THE FIRST CORRECT ANSWER
Why does the Moon appear to be the same size as the Sun during a solar eclipse?
Group of answer choices

Gravity pulls the moon closer to the Earth during a solar eclipse due to the planetary alignment so it ends up looking larger than normal.

While the moon is much smaller than the sun, the moon is also much closer to Earth so it appears larger.

The Moon Illusion occurs when the moon is in certain positions in the sky, which plays a trick on our brain to make it appear larger than it really is.

Answers

Answer:

While the moon is much smaller than the sun, the moon is also much closer to Earth so it appears larger.

Answer:

i think its the second choice

Step-by-step explanation:

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