:
(2x – Зу = 18
(2x + y = 2

Answers

Answer 1

Answer:

2x = 2 × 12 = 24 24 =2x 24-6=18

3y = 3 × 2 = 6 6 =3y

2x = 2×1 = 2 2 =2x 2+0=2

y = 0 0 = y

Step-by-step explanation:

I'm not sure how the question is mentioned in the test but from my point of view I got this not sure how the it is explained in your nest im only 11 so yeh. sos if its wrong

Answer 2

Answer:

y = -4

x = 3

Step-by-step explanation:

I will be using the elimination method to solve this:

Begin by times -1 to the bottom equation.

[tex]2x-3y=18[/tex]

[tex]-2x-y=-2[/tex]

Add them together

[tex]0x-4y=16[/tex]

ignore the 0x and divide -4 to both sides

[tex]\frac{-4y}{-4} =\frac{16}{-4}[/tex]

y = -4

Plug y back into one of the two original equations

[tex]2x-3(-4)=18[/tex]

multiply -3 and -4 to get +12

[tex]2x+12=18[/tex]

subtract 12 to both sides

[tex]2x=6[/tex]

divide by 2 to both sides

x = 3


Related Questions

50 points! can someone help me please??​

Answers

Answer:

we need full question

Step-by-step explanation:

Answer:

Jared did not get the correct answer. The solution to his equation is k = 3, giving 3, 4, and 5 as the three integers. However, 3 and 5 are not even integers. He should have used the equation:

[tex]\displaystyle k+(k+2)+(k+4) = 4k[/tex],

which gives us k = 6, and the correct answer 6, 8, and 10.

Step-by-step explanation:

Jared wanted three consecutive even integers, whose sum is 4 times the first integer.

He let k represent the first integer and wrote:

[tex]k+(k+1)+(k+2)=4k[/tex]

We can solve this first. Combine like terms:

[tex]3k+3=4k[/tex]

So:

[tex]k=3[/tex]

This means that our sequence will be 3, 4, and 5, which is not correct since we have odd integers.

Jared did not get the correct answer. The solution to his equation is k = 3, giving 3, 4, and 5 as the three integers. However, 3 and 5 are not even integers. He should have used the equation*:

[tex]\displaystyle k+(k+2)+(k+4) = 4k[/tex],

which gives us k = 6**, and the correct answer 6, 8 , and 10.

To verify, 6 + 8 + 10 = 24.

And 6(4) = 24, so our answer is correct.

**To solve, we can combine like terms:

[tex]3k+6=4k[/tex]

So:

[tex]k=6[/tex]

*The reason we use (k + 2) instead of (k + 1) is because (if k is an even number), then adding 2 guarantees another even number. If we added only 1, we will get odd numbers.

Joe's age is x years. Match the descriptions of the ages of Angela, Bruce, Callie, and Deshawn with the expressions in terms of Joe's age, X. NIH +3 NIH 5+4 4 (2x+4 41 +2 41-3 Bruce's age is 4 years more than half Joe's age. Callie's age is 3 years less than 4 times Joe's age. Deshawn's age is 3 years more than half Joe's age. Angela's age is 4 years more than twice Joe's age.​

Answers

Answer:

Greetings! I have your answer, as I have done the test, was in fact correct.

Step-by-step explanation:

Angela’s age is 4 years  more than twice Joe’s age:

2x + 4

Deshawn’s age is 3 years  more than half Joe’s age:

I/2 + 3

Bruce’s age is 4 years  more than half Joe’s age:

I/2 + 4

Callie’s age is 3 years  less than 4 times Joe’s age:

4x + 3

-------------------------------------------------

I hope this helps! ^^

Answer:

i got your answer

Step-by-step explanation:

Angela’s   2x + 4

Deshawn’s   I/2 + 3

Bruce’s    I/2 + 4

Callie’s 4x + 3

A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
8x+9y= -82
-x-9y=89

Answers

Answer:

Step-by-step explanation:

Hey could U help me with this question

The process shown in this diagram affected which outcome?​

Answers

Answer:

i think it is D

Step-by-step explanation:

the grocery store sells 4 pints of strawberries for 13.80 how much does it cost per pint

Answers

Answer:

3.45

Step-by-step explanation:

if 4 pints are 13.80 you would have to divided 13.80 by 4 and 4 by 4 to get 1 over blank. The denominator would be 3.45 which would be the amount 1 pint cost. If you don't want to do it as fractions you can simply divide 13.80 by 4.

3.45 the reason is because all you have to do is divide 4 by 13.80 and that gives you the original cost.


I need help as soon as possible!

Answers

Answer:

-10

Step-by-step explanation:

we know that when x=4 y=2 so we can just plug in the numbers

2=3(4)+b

-10=b

Help- please and show work!

Answers

Answer:
49

8^2-15
8*8= 64
64-15= 49

Hope this helps :D

Answer:

49

Step-by-step explanation:

plug in the value of m.

[tex]8^{2}[/tex]-15 = 64 - 15 = 49

WILL MARK YOU BRAINLIEST

Answers

Answer:

the other information to prove XYWZ is a parallelogram is

XY // WZ

Step-by-step explanation:

The other information needed to prove XYWZ is a parallelogram is

XW=YZ

because every parallelogram have four equal sides

Is 16=3 one, no, or many solutions?
And if the lines were graphed, would they be the same line, intersecting, or parallel

Answers

Answer:

No solutions; parallel

Step-by-step explanation:

The equations x=16 and x=3 both have a slope of 0. So when graphed, they would be parallel and there are no solutions between parallel lines.

How do i do square root?

Answers

Divide the number by your guess. Now you have two numbers that multiply to get your original number. Take the average of these two numbers. This becomes your second guess for the square root.

Answer:

you can find it with do its LCM.

Can someone help me I'm confused​

Answers

Answer:

I think its 5 t shirts for 11 dollars?

Step-by-step explanation:

Answer:

When she buys 0 t-shirts, the price is $0.

Step-by-step explanation:

Find the length of a
Help plz ASAP

Answers

Answer:

Hey there!

Your answer is c)

Answer:

2√5

Step-by-step explanation:

The triangle that's shown on the page is a special isosceles right triangle with angle measures of 45° - 45° - 90°

Since one of the side length that sees 45° angle measure is 2√5 the other also has to be equal to this value so the answer is 2√5

11. Twenty percent of what number is 48?

Answers

240


Hope this helps!!!!!!

Answer:

240

Step-by-step explanation:

HELP ME PLZ !!! IT'S ALGEBRA

Answers

Answer:

x = - 8/23

y = 40/23

Step-by-step explanation:

-5x- y = 0

and

-8x+3y = 8

The first step to solve this would be to get what one of the two variables equal. The easiest in this case is y from the first equation.

-5x-y = 0

-y = 5x

y = - 5x

Now you can take this y value and plug it into the section equation.

-8x + 3(-5x) = 8

-8x - 15x = 8

-23x = 8

x = - (8/23)

Once you get the x value you can plug it back into equation one to get y's value

-5*-(8/23)  - y = 0

40/23 - y = 0

y = 40/23

WILL GIVE BRAINLIEST, PLEASE ANSWER QUICKLY. (look at picture)

Answers

Answer: 1/14, 2/28.

Step-by-step explanation:

2/7 x 0.25 =

Convert 0.25 into a fraction.

0.25 = 1/4.

Multiply the numerators together and then multiply the denominators with each other.

1/4 x 2/7 = 2/28.

Therefore, the answer is 2/28, but it can also be simplified to 1/14. So the answer is the first one, or 1/14.

Answer:

1/14 or A

Step-by-step explanation:

0.25 as a fraction is 1/4

1/4 x 2/7 = 2/28, simplify to become 1/14, and there is your answer

(could i have brainliest if possible?)

Helen buys a fleet of taxis for her new business.
The bank lends her £300 000 and she uses this money
to buy the taxis which cost £23 400 each.
a) How many taxis can she buy?
b) How much of the loan will be left over?

Answers

Answer:

a=12 b= 19200

Step-by-step explanation:

20 is 20% of what number?

Answers

Answer:

100

Step-by-step explanation:

"Percent" or "%" means "out of 100" or "per 100".

Therefore 20% can be written as  20 /100

Therefore, 20 is 20% of  100

I need help on my warm up!! pls thx!

Answers

Step-by-step explanation:

[tex] \tt{30.16 = 17.56 + 5x} [/tex]

Swap the sides of the equation :

⤑ [tex] \tt{17.56 + 5x = 30.16}[/tex]

We want to remove the 17.56 first.

Since the original equation is 17.56 , we are going to use the opposite operation and subtract 17.56 from both sides :

⤑ [tex] \tt{5x + 17.56 - 17.56 = 30.16 - 17.56}[/tex]

Simplify. 17.56 - 17.56 = 0 on the left. 30.16 - 17.36 = 12.6 on the right.

⤑ [tex] \tt{5x = 12.6}[/tex]

Then, we need to think about how to remove the coefficient 5. Since the opposite of multiplication is division , I am going to divide both sides by 5.

⤑ [tex] \tt{ \frac{5x}{5} = \frac{12.6}{5}} [/tex]

Simplify. 5/5 = 1 on the left and 12.6/5 = 2.52 on the right. So, Our answer is x = 2.52.

[tex] \pink{ \boxed{ \boxed { \tt{Our \: final \: answer : \underline{ \underline{ \bold{ \tt{x = 2.52}}}}}}}}[/tex]

Hope I helped ! ♡

Have a wonderful day / night ! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

There are
68
people at a show.
The ratio girls to boys is
7:10

Find how many girls and boys there are.

Answers

Answer:

28 girls and 40 boys

Step-by-step explanation:

68/17=4

4*7=28

4*1=40

Amy spent 80 minutes on DFM last week.
This week, Amy spent 112 minutes on DFM.
Find the percentage increase.

Answers

Answer:

80:100

112:x

11200/80=x

x= 140

40% increase

Answer:

29%

Step-by-step explanation:

112-80=32

increase ÷ original × 100 %

= 32÷112×100%

≈29% (corrected to the nearest whole number)

(⌐■_■) ( •_•)>⌐■-■
ᕙ(^▿^-ᕙ)

Answers

Answer:

(‿!‿) ԅ(≖‿≖ԅ)

Step-by-step explanation:

Please help me there can only be one answer

Answers

Answer:-
I think it’s the last option where x and y both are zero.
2x + 2y = 0
Here x = 0 and y = 0.
Hope it helps if u hv any questions feel free to ask...hv a grt day :)

Find the value of x.


A. 4.3
B. 2.7
C. 11.6
D. 13.9

Answers

Answer:

[D] 13.9

Explanation:

Pythagorean theorem: a² + b² = c²Solve for hypotenuse (side x) using: c = √a² + b²

12.8² + 5.3² = 191.93

√191.93

= 13.8538803229

Round the answer

13.9

Is a bucket used to carry water more likely to have a capacity of a pint or a gallon

Answers

Answer:

well it depends on the size of the bucket but some buckets may be a gallon but then some are bigger id-k if this makes sense im srry

Step-by-step explanation:

A medical school admits 86 new applicants every year, let y represent the number of years and a represent the total of admitted applicants

Answers

Answer:

a = 86y

Step-by-step explanation:

Given:

Number of applicants per year = 86

Find:

Equation represent total applicants

Computation:

Assume;

Total number of years = y

Total number of applicants = a

So,

Total number of applicants = Number of applicants per year x Total number of years

a = 86 x y

a = 86y

Laila drew a polygon with coordinates A(-1,2), B(1, 2), C(1, -2), and D(-1, -2).
She then dilated the image and obtained another polygon with coordinates A'(-6, 12), B'(6, 12), and C'(6,
12).

Answers

Answer:becayse djr d,mstud bdn dhg furfhtb-=gvg

Step-by-step explanation:

Really confused with this one it is related with similar triangles please help

Answers

Answer:

x=20

y=70/3 which is about 23.3

Step-by-step explanation:

Write a proportion of all similar sides

1. 1/48 simplified

2. ben is making bread that calls for 5 cups of flour. His measuring cup only holds 1/2 cup. How many times will Ben need to fill the measuring cup to get the 5 cups of flour?​

Answers

Answer:

The answer is 10

Step-by-step explanation:

[tex] \frac{1}{2} x = 5 \\ x = 10[/tex]

help me please I don't get it​

Answers

I would help but I also don’t get it
Models are smaller than the real thing.

So if a house is 22 meters long, a model (like a Lego version) would be how long? The scale they give says 1cm (model length) = 4 meters (real length).

How many measures of 4 meters are in 22?

22/4 = 5 1/2, so the model would be 5.5 or 5 1/2 cm long.

Hope this makes sense.

calculate 0.1 x 60?
quickly help please​

Answers

Answer:

6

Step-by-step explanation:

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