I need help ASAP I need tu turn this in

Answer:

80 students

Step-by-step explanation:

400/80%=320

400-320=80

Answer:

it is equivalent

Step-by-step explanation:

6(c+6)

6c+6

Answer:

$123 dollars is the answer bc math.

Answer

Step-by-step explanation:

Answer: 1

−x+2y=−5;3x−2y=−1

Step: Solve−x+2y=−5for x:

−x+2y=−5

−x+2y+−2y=−5+−2y(Add -2y to both sides)

−x=−2y−5

−x

−1

=

−2y−5

−1

(Divide both sides by -1)

x=2y+5

Step: Substitute2y+5forxin3x−2y=−1:

3x−2y=−1

3(2y+5)−2y=−1

4y+15=−1(Simplify both sides of the equation)

4y+15+−15=−1+−15(Add -15 to both sides)

4y=−16

4y

4

=

−16

4

(Divide both sides by 4)

y=−4

Step: Substitute−4foryinx=2y+5:

x=2y+5

x=(2)(−4)+5

x=−3(Simplify both sides of the equation)

Answer:

x=−3 and y=−4

Step-by-step explanation:

Answer:

I can say Now it's a positive fuction so the answer choices B and D with the negative 1 is wrong, sense Y is = 0 since the slope goes through 0

Step-by-step explanation:

My guess is Most likely A Since C The slope is going left to right which is positive

Answer:

Step-by-step explanation: y= x -2 i hope this helps

Answer:

Step-by-step explanation:

Required relationship:

Answer:

I would say 21 sorry if it was wrong

Step-by-step explanation:

3 x 3 is 9.

4 x 3 is 12.

9+12 is 21.

Answer:

It would take him 4 days.

Step-by-step explanation:

For graphing get your paper. the line numbers you would go by ones on the x axis and ones on the y axis. Put a dot at (0,0) the go up 1, and to the right twice. do this over and over again until you can't see any more points. then make a line with the points

Answer:

x + y = 36.....Equation 1

x = 7 + 2y...... Equation 2

Step-by-step explanation:

Let the number of:

Orange goldfish = x

Black gold fish = y

Anna has a total of 36 goldfish in her aquarium, some are orange and some are black.

x + y = 36.....Equation 1

The number of orange goldfish is 7 more than twice the number of black goldfish.

x = 7 + 2y...... Equation 2

We can rewrite this as:

x - 2y = 7..... Equation 2

The system of equations below that can be used to describe the number of black and orange goldfish in Anna's aquarium is :

x + y = 36.....Equation 1

x = 7 + 2y...... Equation 2

I think it’s

X + y= 36

X - 2y= 7

I hope this helps you have a good day

Answer:

a. 7-n

Step-by-step explanation:

1. Write the number form for the difference of 7 and n.

= 7 - n

a. 7-n

2. The expression for the sum of g and 34

= g + 34

3. The expression for the quotient of 5 and y.

= 5/y

b. 5 / y

4. The expression for the product of 8 and t.

= 8 × t

= 8t

C. 8 x t

5. The expression for the sum of y and 6

= y + 6

d. y+ 6

6. The expression for the difference of z and 5.​

= z - 5

i dont know why my answer was removed lol it wasnt incomplete but uh anyways

24 x 30 = 720

20 x 20 = 400

720 - 400 = 320mm

answer

area = 320mm

Answer:

s

Step-by-step explanation:

Answer:

hmm your answer would be 4

Step-by-step explanation:

2+2=4

Answer:

2 plus 2 is 4 because that is the answer so yeah

Answer:

x = 2 and y = 5

Step-by-step explanation:

Given

x = y - 3.....i)

2x + 3y = 19.........ii)

Putting x = y - 3 in equation II)

2( y - 3 ) + 3y = 19

2y - 6 + 3y = 19

5y = 19 + 6

5y = 25

y = 25 / 5

y = 5

Now putting y = 5 in equation i)

x = 5 - 3

x = 2

Hope it will help :)❤

Answer:

-4/5

Step-by-step explanation:

Answer:

The height of the tree is 19.81 m

Step-by-step explanation:

Trigonometric Ratios

The ratios between the sides of a right triangle are called trigonometric ratios.

If any of the acute angles is chosen as a reference, it has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides and the hypotenuse.

The image shows a right triangle with a tree and the ground forming a right angle and an elevation angle of 33°.

This angle of 33° has a side of 30.5 m as its adjacent leg and the height of the tree X as the opposite side.

The trigonometric ratio that relates both legs is the tangent:

[tex]\displaystyle \tan 33^\circ=\frac{X}{30.5}[/tex]

Solving for X

[tex]X=30.5\cdot \tan 33^\circ[/tex]

Using a calculator:

X = 19.81 m

The height of the tree is 19.81 m

Answer:

4

Step-by-step explanation:

is the answer

mark me as brainlist

Answers:

Note: your teacher may want you to type in a positive value for r

=========================================================

Explanation:

The given equation y = 8(1-0.15)^t is in the form y = a(1+r)^t

We have a = 8 as the initial value, or what we start with.

r = -0.15 converts to -15%, so we have a decay of 15%

Plug in t = 3 to find the corresponding value of y

y = 8(1-0.15)^t

y = 8(1-0.15)^3

y = 8(0.85)^3

y = 8(0.614125)

y = 4.913

y = 4.9

Answer:

a = 8

r = 85%

y = 4.913

Step-by-step explanation:

For a, the exponential decay function is y=a*r^t. In order to find the initial amount, you are solving for when t = 0 or, y(0). Thus, t, or time, is 0. Solve the equation with time of 0.

y = 8(1-0.15)^0 = 8*1 (anything to the 0 power equals 1)

a = 8 is the initial amount

In order to solve for r, you need to solve (1 - 0.15) = 0.85. Now, multiply by 100 to get the percent 100 * 0.85 = 85%

Lastly, when t = 3 solve the equation filling in the exponent, t with 3 like below:

y = 8(1-0.15)^3 (PEMDAS; parenthesis and exponents first)

y = 8(0.85)^3 = 8*(0.614125)

y = 4.913

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

slope = delta y / delta x = 26 - (-10) / 21 - 15

= 36 / 6 = 6

Answer:

6

Step-by-step explanation:

yw

Answer:

x=48

Step-by-step explanation:

to get x alone, you have to multiply both sides by 2, and 24 times 2 is 48

plz brainliest :)

Answer:

y= 0(x)+8

Step-by-step explanation:

y=mx+b

8 = 0(-4)+b

b=8

Answer:

C the tree grew 6 inches in 2 months

hope it helps and have a wonderful day

Answer:

0. If it's a horizontal line, then the slope if automatically 0. if the line went straight up the slope would be "no slope" or "unidentified" your problem has a horizontal line so the slope is 0

Answer:

5p-5

Step-by-step explanation: