help
i will give brainly

Answer:

x = 5, Y = 4

Step-by-step explanation:

3x -2y = 7

-3x +9y = 21. (multiple the whole thing by 3 to get the xs to cancel)

7y = 28

y = 4

substitute y to find x

3x - 2(4) = 7

3x -8 = 7

3x = 15

x = 5

Answer:

5 and 6

Step-by-step explanation:

-5 x 6 = -30

-5 + (6) = 1

x2 + 1x - 30 = 0

(X - 5 ) (X + 6)

To summarize, since -5 and 6 multiply to -30 and add up 1, you know that the following is true:

x2 + 1x - 30 = (X - 5 ) (X + 6)

Answer:

5120

Step-by-step explanation:

5 20 80 320 1280 5120

it multiplies by 4 each time.

Answer:

Well Ima put the link, hope it works!

jkjk

The answer here is 240 in^3

Step-by-step explanation:

Well You have a triangular prism which all you need is the base. The base cna be found by finding the area of the surface triangle.

Triangle area formula: 1/2(bh)

Well base is 4 height is 10, 4*10=40. 40/2= 20

Now the heighth given or (h) is 12. TO find the volume jsut multiply the height by the base

20*12=240

Plus don’t click the links, their viruses.

Answer:

C

Step-by-step explanation:

Answer:

D) [tex]6+2\sqrt{6}[/tex]

Step-by-step explanation:

[tex]2\sqrt{3} *(\sqrt{2} +\sqrt{3} )\\\\6+2\sqrt{6}[/tex]

Answer:

13

Step-by-step explanation:

f(2) = 2² = 4

g(4) = 3(4) + 1 which is 13

Answer:

c

Step-by-step explanation:

24×12=288 songs downloaded

this is because you have to do opposite operations according to one of the operations of math

An equation that represents the given situation is d/12 =24, and the number of songs Oliver has downloaded is 288. So, option C is the correct answer.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, the number of songs Oliver has downloaded this year, divided by 12, is equal to 24.

Let the number of songs downloaded be d.

So, the equation is d/12 =24

d=288

The equation to represent the scenario is d/12 =24. Therefore, option C is the correct answer.

To learn more about an equation visit:

https://brainly.com/question/14686792.

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I hope this helps you

Answer:

Answer:

Jess dug 2.4 inches deep on Wednesday.

Step-by-step explanation:

9.7-7.3=2.4 9 . 7

-

7 . 3

___

2 . 4

Answer:

2.4 inches

Step-by-step explanation:

i did the assignment :)

By Set theory, 420 many people in the survey use brand P and not brand Q.

What is Set theory?

The mathematical concept of sets, which are well-defined collections of things that are referred to as their members or elements, is known as set theory. As only sets are the subject of pure set theory, the only sets that are taken into account are those whose members are also sets.

                               The major reason why set theory is significant is because it offers the axioms upon which the rest of mathematics is constructed. We study sets and their characteristics in the area of mathematical logic known as set theory. A collection of items or a group of items is referred to as a set. These items are frequently referred to as elements or members of a set.

P use = 630 people

Q use = 420 people

both P&Q use ie P∩Q = 210 People

use brand P but not brand Q = P/ P∩Q

                                               = 630 - 210

                                             = 420

Learn more about Set theory

brainly.com/question/27333813

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Answer:

Ryan has 5 crisps

Step-by-step explanation:

If ben has 7 times more than ryan

therfore 35/7= ryan crisps

hence ryan has 5 crisps

Mark as brainliest

Answer:

a) additive property of equality

Step-by-step explanation:

You canceled the addition of 21 to help simplify the equation.

Answer:

Step-by-step explanation:

Answer is in the picture. I promise its not a bad picture.

Answer:

Same I'll help you all if you guys try to help me with my recent question.

Step-by-step explanation:

Answer:

Step-by-step explanation:

You can solve it using the calculator that came with windows -- as far back as windows 7. It probably goes back even further, but that's all I can guarantee. Your phone might be able to do it as well.

y = 25000 * 0.007^5

y = 25000 * 1.6807 *10^-11

y = 0.00000042 is what my calculator gives.

Windows can probably do better.

Answer:

x = 80 degrees

Step-by-step explanation:

it says right there

9514 1404 393

Answer:

  x = 80°

Step-by-step explanation:

The measure of an arc is the same as the measure of the central angle it subtends.

  x = 80°

Answer:

6/7

Step-by-step explanation:

4/7×3/2=6/7. ( by doing reciprocal and cancelling four by two)

Answer:

[tex]\frac{6}{7}[/tex]

Step-by-step explanation:

[tex]\frac{4}{7}[/tex] ÷ [tex]\frac{2}{3}[/tex] = [tex]\frac{4}{7}[/tex] × [tex]\frac{3}{2}[/tex] = [tex]\frac{12}{14}[/tex] = [tex]\frac{6}{7}[/tex]

Answer:

125°

Step-by-step explanation:

......ur welcome.........

Answer:

31

Step-by-step explanation:

a + (n-1)d  where a = first term;  n = which number we want;  d = common difference.

=> 4 + (10 - 1)3

=> 4 + (9)*3

=> 4 + 27

=> 31

Answer:

/12 = 24: d = 288 songs downloaded.

Hope this helps. :)

The equation that represents the given situation is x/12 = 24 and the number of songs downloaded by Oliver is 288.

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the instructions given in the question,

Assume that the number of songs downloaded by Oliver in a year is x.

Then, it is divided by 12 and equal to 24.

So, the equation will be,

x/12 = 24

And, the number of songs downloaded by him will be,

x = 24 × 12

x = 288 songs.

To know more about equation:

https://brainly.com/question/29657983

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Answer:

This is an inverse variation, and the constant of variation is k = 2.

Step-by-step explanation:

Direct variation is something like:

y = k*x

Where k is the constant of variation.

So as x increases also increases y.

Inverse variation is something like:

y = k/x

k is the constant of variation.

In this case, if x increases, y decreases.

Now let's look at the equation:

-10 + 15*x*y = 20

Let's isolate y in one side of the equation:

15*x*y = 20 + 10 = 30

15*x*y = 30

y = 30/(15*x) = (30/15)/x = 2/x

y = 2/x

Then we can conclude that this is an inverse variation, with a constant of variation equal to 2.

Answer:

-3a + 11b + 2c

Step-by-step explanation:

Answer: 11

Step-by-step explanation:

Let the 5 numbers be x,x+1,x+2,x+3 and x+4.

Therefore,

x + x+1 + x+2 + x+3 + x+4 = 65

5x + 10 = 65

5x = 65 - 10

5x = 55

x = 55/5

x = 11

Therefore, the 5 numbers are 11, 12, 13, 14 and 15.

The first number is 11

Answer:

1/2 is the answer

Step-by-step explanation:

1) Make the denominators the same.

[tex] - \frac{3}{2} + 2 \times \frac{2}{2} [/tex]

2) Simplify. Denominators are now the same.

[tex] - \frac{3}{2} + \frac{4}{2} [/tex]

3) Join the denominators.

[tex] \frac{ - 3 + 4}{2} [/tex]

4) Simplify.

[tex] \frac{1}{2} [/tex]

Therefor, the answer is 1/2 and in decimal form the answer will be 0.5.

Answer:

5 trips

Step-by-step explanation:

The volume of bed of dump truck :

From the dimension given in the attached picture ;

Volume of bed = 4 ft * 8 ft * 6 ft = 192 ft³

This means dump truck can convey 192 ft³ of salt per trip

Number of trips required to convey 800 ft³ of salt :

800 ft³ / 192 ft³

= 4.166

= 5 trips

Answer:

AB=3

Step-by-step explanation:

tell me if you want detailed proof