Hi guys can you answer my math question​

Answer:

x = 3

y = 4

Step-by-step explanation:

2x +  y = 10          -----------------(I)

     y = x + 1 ---------------------(II)

Substitute y = x + 1 in equation (I)

2x + x + 1 = 10    {Combine like terms}

      3x + 1 = 10         {Subtract 1 from both sides}

             3x = 10 -1

             3x = 9 {Divide both sides by 3}

                x = 9/3

x = 3

Plugin x = 3 in equation (II)

y = 3 + 1

y = 4

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Admission for adults is 12 dollars. Admission for kids is eight dollars.One day 575 people entered the cave paying 5600 how many adults into the cave

Answer: x=5

Step-by-step explanation: u can just simplify it

Answer:

[tex]6.626 \times {10}^{ - 34} 3 \times {10}^{8} [/tex]

Answer:

sorry no can do

Step-by-step explanation:

hehhehehehehehhehe

Answer:

x<13

Step-by-step explanation:

To solve this, we want to have the isolate the variable x on the left side, by itself without a coefficient. All we have to do to do this is add 4 to both sides, cancelling out the -4 and getting x<13

Answer:

x = 13 + y

Step-by-step explanation:

Simplify:

-4 + x = y + 9

Reorder the terms:

-4 + x = 9 + y

Move all terms containing x to the left all other terms to the right

Add 4 to each side of the equation

-4 + 4 + x = 9 + 4 + y

Combine like terms: -4 + 4 = 0

0 + x = 9 + 4 + y

x = 9 + 4 + y

9 + 4 = 13x = 13 + y

Answer:

x = 13 + y

Answer:

Abdullah is correct.

Step-by-step explanation:

The bottle contained originally 12 fl oz, so 12 fl oz is 100%.

The box now contains 20% more, so now it contains 120% of 12 fl oz.

120% * 12 fl oz = 1.2 * 12 fl oz = 14.4 fl oz

Also, 20% is 1/5. Abdullah divided 12 oz into 5 equal parts, and then he added one more 1/5. He interpreted the problem correctly. The amount in the new bottle is the amount of the old bottle plus 20% of that old amount.

Kanna considers the original amount to be 80%. When he adds another 20%, he is adding 1/4 of 12 which is too much. That is why he gets an incorrect answer that is to high. He interpreted the problem incorrectly. For him, the old bottle has 20% less than the new bottle. That is incorrect.

Abdullah is correct.

Answer:

perimeter=2(l+b)=2(16+24)=80

rate =$2per inch

total cost=perimeter ×rate=80×2=$160is your answer

Answer:

find the value of x and then divide it to see what you can to fill it in

Answer:

40

Step-by-step explanation:

-6 * -6 = 36

2 * 2 = 4

= 40

Answer and Step-by-step explanation:

To calculate a confidence interval for a proportion:

1) Determine the proportion

[tex]p=\frac{308}{500}[/tex]

p = 0.616

2) A 90% confidence interval has z-score that is 1.645.

3) Calculate margin of error

[tex]ME=\sqrt{\frac{p(1-p)}{n} }[/tex]

where

n is the sample size

So

[tex]ME=\sqrt{\frac{0.616(1-0.616)}{500} }[/tex]

[tex]ME=\sqrt{\frac{0.616(0.384)}{500} }[/tex]

ME = 0.02175

Then the interval is given by

p ± z(ME)

0.62 ± 1.645(0.02175)

0.62 ± 0.035

The interval will be

0.585 < p < 0.655

What this means is that we are 90% confident that the true proportion of Katy Perry's Twitter female followers is between 0.585 and 0.655.

Answer:

x = 2

y = 6

Step-by-step explanation:

x + y = 8

x + (3x) = 8

4x = 8

4x ÷ 4 = 8 ÷ 4

x = 2

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

y = 3x

y = 3(2)

y = 6

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

x + y = 8

(2) + (6) = 8

8 = 8

Answer:

12 different four digit numbers

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

permutations! order required

P(4,4) = [tex]\frac{4!}{(4-4)!} = \frac{4!}{0!} = \frac{24}{1}[/tex]

Answer:

27= [tex]3\sqrt{3}[/tex] (3 x 3 x 3)

45= [tex]3\sqrt{5}[/tex] (3 x 3 x 5)

54= [tex]3\sqrt{6}[/tex] (3 x 3 x 3 x 2)

Step-by-step explanation:

Answer:

We found the factors and prime factorization of 27 and 45. The biggest common factor number is the GCF number. So the greatest common factor 27 and 45 is 9.

Answer:

The yellow one

Step-by-step explanation:

Answer:

the yellow one

is the answer

Answer:

volume=lxbxh

=6*6*12

=432cm^2

Supplementary angles are angles that when you add them, make 180 degrees, which is a straight line. They are not to be joined together but added. So if one measures 90 degrees more than another, well what's the answer? I hope this helps.

Answer:

Yes that is very much correct y'know thanks for the free points

Step-by-step explanation:

Answer:

use desmos

Step-by-step explanation:

put y=3x+4 and make a graph from that its really helpful trust me

Step-by-step explanationperdonbro solo quo ielos prutnos  j

:

Answer:

Step-by-step explanation:

[tex]5^{(x-2)}=125\\ \\ 5^{(x-2)}=5^3\\ \\ x-2=3\\ \\ x=5\\ \\ \text{So the exponent is 3}[/tex]

Synonyms for the word 'input' in math:

Domain and Range

Synonyms for the word 'output' in math:

Range of the function

Explanation:-

The input is the number you feed into the expression

The output is what you get after the look-up work or calculations are finished.

Answer:

3)Quadratic

Step-by-step explanation:

Brainliest?

Answer:3

Step-by-step explanation:

Answer:

3 hours

Step-by-step explanation:

Answer:

I think the answer is C.

Step-by-step explanation:

Have a good day ;-).

Answer:

Yes, it is an identity

Step-by-step explanation:

Answer:

in the world: an estimated 16,000,000

in Europe:9,500,000

in Germany: 565,000

Step-by-step explanation:

hitler came into power in 1933 so with a little research you get your answer.