Mathematics High School

What number would you multiply the 2nd equation by in order to eliminate the y terms?
4x - 4y = 16
2x + y = 5

Answers

Answer 1

Answer:

x=3

y=-1

Step-by-step explanation:

first multiply the 2nd row by 2 so you will get

4x-4y=16

4x+2y=10

then subtract the 2nd row from the first row and so you will get

-6y=6

then solve for y in the above equation

y=-1

then substitute y=-1 into any 2 equations .

i picked the first 1

4x-4 × -1=16

then solve for x .

you will get

x=3

Related Questions

so
How would you write 6.5E4

Answers

Hope that helps



6.5 x 10^4

Or

65000


please help!!
Find the slope of the line. Enter your answer as
a number, fraction, or undefined. Reduce to
lowest terms where necessary.

Answers

Answer:

m = undefined

General Formulas and Concepts:

Algebra I

Vertical Line Test - Tells us if a graph is a functionVertical Lines - slopes are undefined

Step-by-step explanation:

If the slope m was equal to 0, then it would be a horizontal line rather than a vertical line.

Using the Vertical Line Test, we also know that the graph is not a function.

Usually a vertical line has an undefined slope, as x equals a certain number, and m = unknown.

Answer: It's undefined, because it's vertical

10. In a warehouse, the workers sometimes slide boxes along the floor to move them. Two boxes
were sliding toward each other and crashed. The crash caused both boxes to change speed. Based
on the information in the diagram, which statement is correct? In your answer, explain what the
forces were like and why the boxes changed speed (5pts)
Box 1 has more mass than Box 2.
Box 1 and Box 2 are the same mass.
Box 1 has less mass than Box 2.

Answers

Answer:

The Box 1 and Box 2 are the same mass.

Explanation:

It caused both to change speed because they have both the same mass.

How do cells maintain homeostasis? Describe one way a cell will maintain stable internal conditions.

Answers

Answer:

One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. Cells are suspended in a fluid environment.

It says find value of x?

Answers

It’s 4
the vertical angle is also 90

Solve
I need it really quickly

Answers

3x - 2 = 28 <=>

3x = 30 <=>

x = 10
X=10 hope that helped

what is 149866.37636 rounded to the nearest whole number​

Answers

Answer:

149866 is the nearest whole number.

Step-by-step explanation:

The expression 2y+ 2.6 is equal to ? for y=5

Answers

Answer:

Its 12.6

Step-by-step explanation:

first we multiply 2 by 5 and get 10. Then we add 10 to 2.6 and get 12.6 for your answer.

Answer: 12.6

Step-by-step explanation:

2(5)+2.6

10+2.6

12.6

pls help (-12) ⋅ c = 12

c = ?

Answers

Answer:

c= -1

Step-by-step explanation:

A negative number multiplied by another negative number equals a positive number, so c must be negative.  12 times 1 equals 12, so c must be -1.

the answer is c = -1

I need to find 7/8 of $72

Answers

Answer:

63

Step-by-step explanation:

7/8 x 72 = 63

63 Dollars!! Hope this helps

Find the slope of the following graph.
yaxis
(2.2)
(1.2)

Answers

Answer:

Y = 2

Step-by-step explanation:

Use the formula below to find the slope. Plug 0 in for X to find the y intercept. In this case there is no slope. Make sure next time to use commas , instead of periods . when writing coordinates.

Yeah it is 4/2 because you have to use y2 - y1 / x2 - x1 and you get 4/2 and you can it might be possible to simplify it too

1)Tyrone is scuba diving in the ocean and is currently at a depth of 47 feet below sea level.
2)Enter the integer that represents Tyrone's current depth.

Answers

Answer:

-47 Feet

Step-by-step explanation:

He is 47 feet below sea level, so he would be at -47 feet. If you are asking how deep he is, then it would be just positive 47 feet.

A restaurant customer left ​$ as a tip. The tax was and the tip was ​% of the after tax cost. Which information is not needed to compute the bill after tax and​ tip? What was the total​ bill?

Answers

Complete question :

A restaurant customer left ​$0.90 as a tip. The tax was 8% and the tip was ​10% of the after tax cost. Which information is not needed to compute the bill after tax and​ tip? What was the total​ bill?

Answer:

The tax percentage

9.9

Step-by-step explanation:

Guven that :

Amount of tip left = 0.90

Tip left = 10% of after tax cost

Tax % = 8%

If tip left = 10% of after tax cost; then ;

If after tax cost = x

10% of x = 0.90

0.1x = 0.9

Hence the percentage tax isn't needed :

To obtain the total bill:

Let total bill = y

y = after tax cost and tip

Hence,

y = x + tip

y = x + 0.9

From : 0.1x = 0.9 ; x = 0.9/0.1 = 9

Hence,

Total bill:

y = 9 + 0.9

y = 9.9

how many boys perfer the ferris wheel?

Answers

Answer:

10 Boys

Step-by-step explanation:

10 boys prefer the Ferris wheel because the total amount of boys is 35, but 23 of those 35 boys prefers the Super Slide, meaning what's left is who prefers the Ferris wheel since there are only 2 options for them to choose from.

35 boys - 23 boys (who like the Super Slide) = 10 boys (the remainder who likes the Ferris wheel).

≧◡≦

Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!

10 boys because they have to school tomorrow and then I can play with my friends at the same school lol I can get you to the school and I can play with my kids if I don’t want you out and then you have a birthday and then you go out to school and I get you out and I can play play it on my birthday if I get home I’m not gonna play with me I just don’t know if it’s not ok with that I’m going out with the bus I just don’t know if it’s a because

Answer ASAP!! There is only a blank circle on the left

Answers

Answer:

i think its 1000

Step-by-step explanation:

2(6-x)=3 please help

Answers

It’s impossible what are you doing Distributed property or solving for x?

Answer:

x = 4.5

Step-by-step explanation:

Let's solve this together!

First you would want to multiply 6 and x:

6×2 = 12

x×2 = 2x

Then you would want to subtract 12 from 3:

3+12 = 9

Then divide 9 by 2:

9÷2 = 4.5

x=4.5

That's it!

Hope this helped! :)

A wire is needed to support a vertical pole 4 feet tall. The cable will be anchored to a stake 3 feet from the base of the pole. How
much cable is needed?
4 ft
3 ft
A cable of length
feet is needed.
Enter your answer in the answer box.

Answers

Answer:

I think its 5 feet

Step-by-step explanation:

I used Pythagorean theorem

If the base number is 2/3 and the power is 5.
answer must be a fraction
please explain i need this ASAP!!
WILL GIVE BRAINIEST

Answers

Answer:

32/243

Step-by-step explanation:

do 2 to the 5th and put it above 3 to the 5th

32/243 that’s the answer

Need help will try and mark brainliest if it lets me

Answers

Answer:

a: (4,4)  B:(10,6)  C:(0,2)  D: over 12  E: over 3, up 2  F: up 7

The answers are
A- 4,4
B- 10,6
C- 0,2

write at least four rational numbers between -2/5 and -1/3.​

Answers

Answer:

-47/120 -23/60 -3/8 -11/30

Step-by-step explanation:

fractions are always rational. give both numbers the same denominator and list any numbers between the two. (-2/5 is equal to -6/15) (-1/3 is equal to -5/15) make sure to simplify though

What is the range of {( -1,6), (2,0), (9,-3), (-4,6)}

Answers

Answer:

Range: {6,0,-3}

Step-by-step explanation:

6(3x - 2) = 18x + 6
I’m confusion please help

Answers

Step-by-step explanation:

6(3x-2)=18x+6

18x-12=18x+2

18x-18x=2-12

0 =-10

0

Answer:

This equation does not exist.

Abby has to measure the weight of objects in pounds for her homework, but she only has a scale that measures ounces. If she finds an object weighs 48 ounces, how many pounds does it weigh?

Answers

Answer: 3 pounds

Step-by-step explanation: 1 pound=16 ounces

Now that you know what the conversion from ounces to pounds is, you just have to divide the number of ounces in the problem (48) by 16.

48÷16=3

Will mark brainliest who ever answers first !!!

Please help

Answers

I believe the answer is x=-2

1704000000 in scientific notation

Answers

Answer: 1.704 x 10^9

Step-by-step explanation: Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10

. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

A basket contains six apples and five peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit.
The first piece of fruit is an apple and the second piece is a peach. What’s the probability?

Answers

Answer:

6/11 * 5/10

3/11 or 0.27 repeating

Step-by-step explanation:

Write the point-slope form of the line that has a slope of -7 and passes through the point (10,4).

Answers

Answer:

y=10/4-7

Step-by-step explanation:

What number can you put in the missing spot of the domain to keep the table a function? Select all that apply.​

Answers

Answer:

1,8 and 5,10

Step-by-step explanation:

what is 25% of 360??? pls explain

Answers

Answer:

90

Step-by-step explanation:

25%=1/4

360/4=90

Answer:

25%*360＝90

Step-by-step explanation:

Because % is equal to 100.

25/100＝0.25

Non proportional or proportional

Answers

Non proportional it should be
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