Solve x − 2y = 3 for x

Answer:

-2 degrees

Step-by-step explanation:

Divide -16 by 8:

-16/8

= -2

So, the average change in temperature each hour was -2 degrees.

The average change of weather dropped 2 degrees for every hour is snowed.

Here,

After 8 hours of snow, the temperature had changed by a total of -16 degrees.

We have to find the average change in temperature in each hour.

What is Average?

Average is the middle value of the given sets of values.

Now,

After 8 hours of snow, the temperature had changed by a total of -16 degrees.

Hence, The average change in temperature in each hour = -16 ÷ 8 = -2

Therefore, The weather dropped 2 degrees for every hour is snowed.

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Answer:

BD = 28

Step-by-step explanation:

BD = BC + CD = 21 + 7 = 28

Answer:

the first one

Step-by-step explanation:

Answer:

3x²+7x-8

Step-by-step explanation:

Answer:

i

I hope this helps!

Answer:

[tex] { - 1}^{ \frac{1}{2} } .[/tex]

Step-by-step explanation:

[tex] \sqrt{ - 1} \: \: = - 1 ^{ \frac{1}{2} } = {( - 1 \times 1)}^{ \frac{1}{2} } \\ since \: - 1 \times 1 = - 1 \\ the \: ans \: is : \\ { - 1}^{ \frac{1}{2} } .[/tex]

♨Rage♨

Answer: The answer is D

Answer:

D

Step-by-step explanation:

4 ÷ x+3.

4 + x(a number) + 3

4/x+3

Answer:

sin70°

Step-by-step explanation:

Given sin110° where 110° is an obtuse angle in the second quadrant.

The related acute angle in the first quadrant is 180° - 110° = 70°

Thus

sin110° = sin70°

Answer:

well if the breads both sell the same number of loaves for each type the you add 6 and 8 which is 14 divide it by 240 and you get ruffly 17 loaves per day.

Step-by-step explanation:

Answer:

a5 means that ia is variable and 5 is the power of variable a.This also ,eans variable(a)is multiplied fivr times by itself.And algebraic number'x'has 1 as irs power.or we can say that x1=x.This meansthat when a variable has 2 as its power,its poweris ignored and o ly variable in written as such.

Answer:

C: x+y=27 and y=6+2x

Step-by-step explanation:

First part: If the sum of the two is 27, then it means that it is x + y = 27, because sum means addition.

Second part: The larger number (y) is 6 more than twice the smaller number (x). Twice a number means that it is that number multiplied by x, so it is 2x. 6 more means we add 6 to it so the second equation is y=6+2x.

Hope this helped!

Answer:

y=3 x=1 hope this helps :)

Step-by-step explanation:

Hey there! I'm happy to help!

Let's say that we don't have jokers. In that case, there are 52 cards, and half of them are red (so 26 are red). The probability of pulling a red card once is 1/2 since half the cards are red.

If we pick one out, there are only 51 total cards left and 25 red cards. So, the probability of picking one again would be 25/51.

We multiply the probabilities of these two events to find the probability of them both happening.

1/2×25/51=25/102

The probability of picking two red cards in a row is 25/102 or around 24.5%.

Have a wonderful day! :D

Answer:

c

Step-by-step explanation:

Answer:

1/15

Step-by-step explanation:

multiply the numerator with the numerator and the denominator with the denominator

1×1/3×5

= 1/15

Answer:

−11402 / 342015

Step-by-step explanation:

(1/3)(1/5)- 1/10- 1/151/151/10

1/15 - 1/10 - 1/151/151/10

-1/30 - 1/151/151/10

-1/30 - 1/22801/10

-1/30 - 1/228010

−11402 / 342015

Answer:

[tex]\boxed{-3}[/tex]

Step-by-step explanation:

Hey there!

1 + (-4)

= -3

Since there is -4 and and only a one 1,

it's like subtracting 4-1 whoch is 3, except this time you are adding -4 and 1,

Which is -3, on a number line.

Hope this helps :)

If Alex and Leonardo are both buying two bags of popcorn and drinks then the overall price would be $18.00.

$4.00 + $4.00 = $8.00 + $5.00 + $5.00 = $18.00

Therefore, they would spend 18 dollars.

Hope this helps ! <3

Answer and Step-by-step explanation:

a. The strings  {a, b, c} with at least one a and at least one b.

Solution: ∑ = {a, b, c}

where

(a +b +c)(a (a +b +c)*b + b (a +b +c) a (a +b +c)*

b. The set of 0’s and 1’s string whose tenth symbol from the right end is 1.

Sol: (0+1)*1(0+1)9

c. The set of  0’s and 1’s string with at most one pair of consecutive 1’s.

sol: (0+10)(11+∑)(0+10)

Answer:

makin sure he gives the next person brainliest

Step-by-step explanation:

Answer:

Would love to help but I need options.

Step-by-step explanation:

And plz give brainliest!!!

Answer:

Hey there!

1.46x10^3-3.31x10^2

14.6x10^2-3.31x10^2

11.29x10^2

1.129x10^3

J is the correct answer.

Hope this helps :)

The sound travel [tex]1.129 \cdot 10^3 m/s[/tex] faster than the speed of sound in air.

The speed   is the distance travelled per unit of time by a sound wave  

Speed of sound in water is [tex]1.46 \cdot 10^3[/tex]

Speed of sound in air is [tex]3.31 \cdot 10^2[/tex]

To find how much faster does travel , we need to subtract  the speed

To subtract we need to make the exponents same

[tex]1.46 \cdot 10^3\\14.6 \cdot 10^2[/tex]

Now we subtract ,

 [tex]14.6- 3.31= 11.29\\\\11.29 \cdot 10^2\\1.129 \cdot 10^3[/tex]

The sound travel [tex]1.129 \cdot 10^3 m/s[/tex] faster than the speed of sound in air.

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The best method would certainly be integration :)

The area is given by the integral,

[tex]\displaystyle\int_0^2\frac{\mathrm dx}{9-x^2}[/tex]

We can split up the integrand into partial fractions:

[tex]\dfrac1{9-x^2}=\dfrac16\left(\dfrac1{3-x}+\dfrac1{3+x}\right)[/tex]

Then the area is

[tex]\displaystyle\frac16\int_0^2\left(\frac1{3-x}+\frac1{3+x}\right)\,\mathrm dx[/tex]

[tex]=\dfrac16(-\ln|3-x|+\ln|3+x|)\bigg|_0^2[/tex]

[tex]=\dfrac16\left((\ln5-\ln1)-(\ln3-\ln3)\right)=\boxed{\dfrac{\ln5}6}[/tex]

3.6 is the answer to the question

Answer:

-35+7u

Step-by-step explanation:

Heres the formula i hope this helps... SA=2lw+2lh+2hw

Answer:

length + width + height

Step-by-step explanation:

For example, for a  3D shape you will have to add all of the sides to get the surface area.

Answer:

10 %+-5

Step-by-step explanation:

I don't really know

Answer:

16

Step-by-step explanation:

Answer:

The answer is 16.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step                    Statements                    Reasons

1.               [tex]-6=-\frac{2}{3}(x+12)+\frac{1}{3}x[/tex]             Given

2.               [tex]-6=-\frac{2}{3}x-8+\frac{1}{3}x[/tex]                 Distributive property

3.               [tex]-6=-\frac{1}{3}x-8[/tex]                          Combine like terms

4.                  [tex]2=-\frac{1}{3}x[/tex]                                Addition property of equality

5.                  -6 = x                                    Multiplication property of equality

6.                   x = -6                                   Symmetric property

Answer:

To get from step 1 to step 2, apply the distributive property to eliminate the parentheses.

To get from step 2 to step 3, combine like terms on the right side of the equation.

To get from step 3 to step 4, apply the addition property of equality to isolate the variable term.

To get from step 4 to step 5, apply the multiplication property of equality to isolate the variable, x.

To get from step 5 to step 6, apply the symmetric property to rewrite the equation with the variable on the left side.

Step-by-step explanation: