In the following equations, what would you multiply the second equation to
eliminate the "y"? *(PLEASE I WILL GIVE BRAINLIEST!!)

3x + y = 20
x + y = 12

1) -1

2) 1

3) -3

4) 3

Answers

Answer 1

Answer:

-1

Step-by-step explanation:


Related Questions

Find the volume of the sphere. Either enter an exact answer in terms of π πpi or use 3.14 3.143, point, 14 for π πpi and round your final answer to the nearest hundredth.
radius is 8

Answers

Answer:

Solution :-

Volume of sphere = 4/3 πr³

Volume = 4/3 × 3.14 × 8³

Volume = 4/3 × 3.14 × 512

Volume = 4/3 × 1607.68

Volume = 2143 in³

[tex] \\ [/tex]

Given:-

Radius of the sphere is 8 units.

To Find:-

The volume of the sphere.

Solution:-

We know, volume of sphere is [tex] \frac{4}{3} [/tex]πr³

So, volume of sphere = [tex] \frac{4}{3} [/tex] × 3.14 × 8 × 8 × 8

= [tex] \frac{6430.72}{3} [/tex]

= 2143.6

The volume of the sphere is 2143.6 cubic units. [Answer]

work out 4/11 + 2/5, Give your answer in its simplest form​

Answers

Answer:

42/55

Step-by-step explanation:

4/11+2/5  LCD=55

20/55+22/55

42/55

x + 4 =
A 2
B. 10
C. 11
D. 24

Answers

Answer:

please the question is not complete oo

3 3
Insert three rational and three irrationall
no. between 150 and
and 0
160​

Answers

Answer:

Step-by-step explanation:

Rational numbers:

(150+160)/2 = 310/2 = 155

(150+155)/2 = 305/2= 152.5

(155 +160)/2 = 315/2= 157.5

155, 152.5 , 157.5 are rational numbers between 150 and 160

Irrational numbers:

Irrational numbers are numbers that are non terminating and non repeating numbers

155.502003000.....

155.202002000......

156.3120578.......

Answer:

Required Answer :-

1st rational number

= a + b/2

= 150 + 160/2

= 310/2 (1)

2nd rational number

Middle term of 150 and 160 is 155

= 150 + 155/2

= 305/2

3rd rational number

= 160 + 155/2

= 315/2

[tex] \\ [/tex]

Triangles ABC and XYZ are similar figures. If the length of side AC is 15 units, the length of side BC is 27 units, and the length of side XZ is 5 units, what is the length of side YZ?

Answers

Answer:

the length of side YZ is 9

Step-by-step explanation:

AC is 15...............XZ is 5     (15/3)

BC is 27..............YZ is 9       (27/3)

The rectangular prism has a height of 10 inches and a base of 25 square inches. What is the volume of the rectangular prism?

Answers

Answer:

250 in^3

Step-by-step explanation:

V=BH

v=10(25)

v=250 in^3

The total area of a rectangular shaped playground is 24 1/2 squared meters. If the width of the playground is 3 1/2 meters, which of the following is the length of the playground?
a. 7m
b. 28m
c. 85.75m
d. 0.7m

Answers

Answer:

a

Step-by-step explanation:

Can someone please help me asap ill mark brainlist + extra points!!!!!

Answers

7. Radius =15 diameter=30 area=15^2pie circumference=30
8. Radius=8 diameter=16 area=8^2pie
Circumference=16
9. Radius=10 diameter=20 area=10^2pie
Circumference=20

Step-by-step explanation:

1. radius=d/2= 30/2= 15yds

diameter= 30yds

area=πr²= 22/7*(15)²

707.14yds²

circumference= 2πr=2*22/7*15

94.29yds

2.radius=8in

diameter= 2r =2(8)=16in

area=πr²= 22/7*(8)²

201.14in²

circumference= 2πr=2*22/7*13

50.29in

3.radius=d/2 =20/2=10ft

diameter= 20ft

area=πr²= 22/7*(10)²

314.29ft²

circumference= 2πr=2*22/7*10

62.86ft

what number can you use in place of the pi symbol

Answers

Answer:

You can use 3.14 or 22/7 in the place of π.

Answer:

3.14

Step-by-step explanation:

22/7 when simplified is 3.142857143 and pi is 3.141592654

What is the approximate circumference of the circle shown below?
A. 82 cm
B. 64 cm
C. 129 cm
D. 137 cm

Answers

Answer:

the answer to this is C. 129 cm

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

The answer would be letter C

The polygons in each pair are similar. Find the missing side length.

A.4
B.3
C.3
D.7

Answers

Answer:

A. 4

Step-by-step explanation:

If the length 6 become 3 in the corresponding side of the congruent shape,

then 8 becomes 4 (Ratio 2:1)

Hope this helps

How to simpfly fractions?
-Step by step
-Answer 15/36

Answers

Answer:

5/12

Step-by-step explanation:

15÷3/36 ÷3

the answer is 5/12

Answer:

5/12

Step-by-step explanation:

15/36 ÷ 3

5/12

mark mope brainliest

Can someone help please. I’ll give brainleist.

Answers

I believe the answer is d but tell me if I’m wrong

Ellen ate dinner at a restaurant. The bill came to $63. If she left a 15% tip, what was the total cost of her dinner ? Round your answer to the nearest dollar : $

Answers

Answer:

72.45

Step-by-step explanation:

Take 63 and multiply by 0.15 to represent the tip

Then take the answer of 9.45 and add it to 63

Your final answer is 72.45.

63.00×15%=9.45 +63.=72.45

-8 3/8-10 1/6 PLS HELP!!!!!!!!!!!!!!!!!!!!!

Answers

I think it's -18 13/24 ?

Answer:

-18 13/24

Step-by-step explanation:

Looking at the two numbers, we need to find a common denominator. To do that, list the multiplies of both numbers & find the first one that is in common.

8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120

6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120

The first multiple 8 & 6 share is 24, so we'll use that as our denominator

-67/8 - 61/6

-201/24 - 244/24

(-201 - 244)/24

Subtract 244 from -201 to get -445.

-445/24

Convert -445/24 into a mixed number.

-18 13/24 is the answer to -8 3/8 - 10 1/6.

Distance: Jack and Jill start from the same point and walk in'opposite directions. Jack

walks 2 kmh faster than Jill. After 3 hours they are 30 kilometers apart. How fast did

each walk?

Answers

Answer:

t = 6 km/hour

And, J would be 4 km per hour

Step-by-step explanation:

Let us assume the speed of Tom be T

And, the Speed of Jim  be J

Given that  

T - J = 2 km /hr ...........(i)

After 3 hours distance between them  = 30 km

As they are walking in the opposite direction

Thus,  

Net speed =T + J

L ÷ (T+J) = 3

30 ÷ (T+J) = 3

T +J =10 ..............(2)

After solving these two equations

2T = 12

t = 6 km/hour

And, J would be 4 km per hour

Jack paid $4:00 for 6 pounds of apples. What is the ratio of the price of apples to the pounds of apples?​

Answers

Answer:

you get 1.5 pounds of apples per dollar (1 pound and 8 ounces)

Step-by-step explanation:

6 and 4 will not work so we need to use decimals

since we have a gap of two, we need to be able to use it four times

2=0.5

1.5 x 4 = 6

or we could just divide it... never mind forget it

your answer is 1.5 pounds of apples per dollar

Answer:

The ratio of the price of apples to the pound of apples: 2:3

Step-by-step explanation:

4:6

divide by 2

2:3

Line BC is tangent to the circle centered at A. Find the measure of angle BCA. Explain or show your reasoning.

Answers

Answer:

[tex] m\angle BCA= 33\degree[/tex]

Step-by-step explanation:

[tex] In\: \odot A[/tex] BC is tangent to the circle at point B.

Therefore, by tangent-radius theorem:

[tex] \therefore AB\perp BC[/tex]

[tex] \therefore \angle ABC = 90\degree [/tex]

[tex] In\: \triangle ABC, [/tex]

[tex] m\angle ABC +m\angle BAC +m\angle BCA= 180\degree [/tex]

[tex] 90\degree+57\degree +m\angle BCA= 180\degree [/tex]

[tex] 147\degree +m\angle BCA= 180\degree [/tex]

[tex] m\angle BCA= 180\degree - 147\degree[/tex]

[tex] m\angle BCA= 33\degree[/tex]

question number.4
help me plss ​

Answers

Answer:

C

Step-by-step explanation:

65%=65/100

=0.65

This is the required answer.

answer:B. po ata i'm not sure

What is easier math or reading? Explain why.




Also be serious when answering

Answers

Answer:

That is an opinion. Some find math easier and some find reading easier. There is no right or wrong answer to that.

Step-by-step explanation:

Answer:

reading  is easier  than math because math has to do with numbers and there are so many diffrent ways to do math and so may diffrent formals to us for math  there for reading is easier than math

Step-by-step explanation:

What is the surface area of the triangular prism shown?
A.32 square centimeters
B.120 square centimeters
C.184 square centimeters
D.1,560 square centimeters
NO LINKS TO WEBSITES!!!!!!!!

Answers

Answer:

C. 184 square centimeters

Step-by-step explanation:

4 x 6 = 24

there are 2 of them so you leave it the same

5 x 10 = 50

there are 2 of them so

50 x 2 = 100

6 x 10 = 60

24 + 100 + 60 = 184

184 square centimeters

Complete the table and graph the solutions of the the equation is y = 2x + 1

Answers

For the table -1, 1, 3, 5 and for the graph look at the photo hope this helps!!!!

Jaylah has two packages of trail mix. The first package weighs 2.40 pounds and the second package weighs 3.25 pounds. She mixes the two packages together and forms smaller bags amounts that weigh 0.25. What is the greatest number of 0.25 bags Jaylah can make using the trail mix she has?

Answers

She can make up to 22 bags because you have to add 2.40 and 3.25 together to get 5.65 then divide by .25 to get 22.6 she can make a total of 22 with .6 left over

I need help what is d/7 > 15???

Answers

Answer:

d>107

Step-by-step explanation:

I am sorry if you got this wrong..

please answer the following

please explain how you got your answer

Answers

Answer:

P(1) = 4/20 or 1/5

P(2) = 3/20

P(3) = 7/20

P(4) = 6/20 or 3/10

Step-by-step explanation:

Crystal spun the spinner 20 times. 1 was the outcome 4 times out of 20 spins, so the experimental probability would be 4/20 or 1/5. Same goes for all the other ones.


Which list shows these numbers in order from least to greatest?
37
6
-5.17, 33,
26
5

Answers

Answer:

The answer to this question should be H

Each exterior angle of a regular decagon has a measure of (3x + 6)°. What is the value of x? x = 8 x = 10 x = 13 x = 18

Answers

Answer:

x = 10

Step-by-step explanation:

Each exterior angle of a regular decagon has a measure of (3x + 6)°. What is the value of x?

The sum of the exterior angles of a decagon = 360°

Decagon = 10 sides

Each angle in a decagon = 360/10

= 36°

We are told that:

Each exterior angle of a regular decagon has a measure of (3x + 6)°.

Hence,

(3x + 6)° = 36°

Collect like terms

3x = 36 - 6

3x = 30

x = 30/3

x = 10

Answer: The person above me is correct! It is B. X=10 I got a 100% on the test! Edge2021

Step-by-step explanation:

Find the cost of tiling the floor of a room which is 250m long and 100m wide at the rate of Tk.
80 per m2.

Answers

Answer:

2000000Taka.

Step-by-step explanation:

Area of the room= 250x100

=25000m²

Each m²= Tk 80

so, 25000x80

=2000000 Taka.

plz mark me as brainliest !

A toy shop orders 11 boxes of marbles Each box contains 6 bags of marbles Each bay contains 45 marbles How many marbles does the shop order in total?

Answers

Answer:

2970 marbles

Step-by-step explanation:

First, find how many bags of marbles there were:

11(6)

= 66

Find how many marbles there are

66(45)

= 2970

So, there were 2970 marbles in total

Answer:

Required Answer :-

At first the total no. of bags

=> 11 × 6

=> 66

Now

Total marble

=> 45 × 66

=> 2970

[tex] \\ [/tex]

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