The population of a school is 800 and is decreasing at a rate
of 2% per year; 4 years

Answer:

17

Step-by-step explanation:

10y+7x-29=10y+5x+5

7x-29=5x+5

2x-29=5

2x=34

x=17

Answer:

no this is wrong its souposed to be moved twice so it will look like this:

706.56

Step-by-step explanation:

Answer:

b. y = x + 4

Step-by-step explanation:

So we know at x = 0, or the middle black line, the red line is touching 4 so y = 4. 4 is the y intercept so the equation should say "+ 4"

Then, we can see that when the red line increases up by 1 value, it also increases 1 value to the right so that would be 1/1 which equals to 1x.

Therefore the correct answer is y = x + 4

Please mark brainliest if this was helpful :)

Answer: [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]

Step-by-step explanation:

Given

Quadratic equation is

[tex]x^2-12x+15=0[/tex]

Solving by completing the square method

[tex]\Rightarrow x^2-2\cdot 6\cdot x+15=0\\\text{add and subtract 36}\\\Rightarrow x^2-2\cdot 6\cdot x+15+36-36=0\\\Rightarrow x^2-2\cdot 6\cdot x+36+(-36+15)=0\\\text{using}\ (a-b)^2=a^2+b^2-2ab\\\Rightarrow (x-6)^2-21=0\\\Rightarrow (x-6)^2=21\\\Rightarrow x-6=\pm \sqrt{21}\\\Rightarrow x=6\pm \sqrt{21}[/tex]

The solution set of the equation is [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]

Answer:

D on edge

Step-by-step explanation:

Answer: 2:1 B is the answer I think this is correct.

Step-by-step explanation:

Answer:

x=40

Step-by-step explanation:

x + 320 = 360

   -320     -320

x            =  40

Answer:

x=40

Step-by-step explanation:

So, since the figure has 4 sides, we know that the sum of the interior angles is 360. To check: (n-2)*180=(4-2)*180=28180=360.

That means x equals 360 minus the sum of the other three angles.

100+120+100=320

360-320=40

x=40 degrees

Answer:

√{310×310}=√310²=±310 is your answer

Answer:

it should be all of them besides the last one because 3 is greater than 2

and 2 because it is equal

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Answer:

4.485 ( rounded = 4.5)

Step-by-step explanation:

1.3 x 1.5 x 2.3 = 4.485

Answer:

Step-by-step explanation:

In this question we have to find the share of each person

First we have to find the sum of all the ratios,

[tex]2 + 3 + 5 \\ = 10[/tex]

Then we have to represent their share as a fraction and then multiply it by the total value,

The share of first person:-

[tex] \frac{2}{10} \times 450000 \\ = 2 \times 45000 \\ = 90000[/tex]

So the first person share is $90,000

The share of second person:-

[tex] \frac{3}{10} \times 450000 \\ = 3 \times 45000 \\ = 135000[/tex]

So the second person share is $135,000

The share of third person:-

[tex] = 450000 - (135000 + 90000) \\ = 450000 - 225000 \\ = 225000[/tex]

So the third person share is $225,000

(This is your answer hope it helps :))

Answer:

Step-by-step explanation:

AB = 5

AC = 6

BC = √(5² + 6²) = √61 ≈ 7.8 units

Answer:

140  square feet

Step-by-step explanation:

The total area can be calculated by splitting this irregular shape into two quadrilaterals.

In this case, I am splitting it horizontally, but you can do it vertically and get the same answer!

I'm left with a 10 by 8 ft rectangle and an 15 by 4 ft rectangle. So, the total area is equivalent to:

[tex]10*8 + 4*15\\80 + 60\\=140[/tex]

Have a nice day. Spread The Love!

Answer:

Answer is 16%

Step-by-step explanation:

I hope it's helpful!

Answer:

16

Step-by-step explanation:

Do 4/ 1 over 4.  This simplifies to 4*4 so your answer is 16.  To check 4/16 = 0.25

a. y=-2.5x+50

b. slope=-2.5. y-intercept=50

Answer:

slope is -2.5

y-intercept is (0,50)

slope y-intercept is y= -2.5x + 50

Step-by-step explanation:

to find the slope you use rise/run the rise is 5 and the run is -2 which is 5/-2 or -2.5

the y-intercept is where the line hits a perfect point on the y-axis which would be at 50 in your case

y=mx+b

m= slope and b= y-intercept

why is m the slope? because the slope is the unknown variable

hope this helps :) (i tried to explain it as best as i could) have a nice day !!

Answer:

∠ V = 130°

Step-by-step explanation:

In a parallelogram opposite angles are congruent and consecutive angles are supplementary.

∠ S and ∠ V are not opposite angles, they are consecutive, then

∠ S + ∠ V = 180°

50° + ∠ V = 180° ( subtract 50° from both sides )

∠ V = 130°

Answer:

x+2y=0

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=-1/2(x-4)

y+2=-1/2x+4/2

y+2=-1/2x+2

y-(-1/2x)=2-2

y+1/2x=0

1/2x+y=0

2(1/2x+y)=2(0)

x+2y=0

Answer:

x ≤ 207 crates

Step-by-step explanation:

Greatest weight of the container = 27,500 kilograms

Weight of other shipment = 6,800 kilograms

Weight of a crate = 100 kilograms

Number of 100-kilogram crates that can be loaded into the shipping container = x

The inequality is

27,500 ≤ 6800 + 100x

27,500 - 6800 ≤ 100x

20,700 ≤ 100x

x ≤ 20,700 / 100

x ≤ 207 crates

Answer:

5x+4x^17+3x^5-7

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

Answer:

-30

hope i helped

Step-by-step explanation:

Answer:

D) 32

Step-by-step explanation:

-5(s-30)=-10

s-30=-10/-5

s-30=2

s=2+30

s=32

Answer:

I think it might be 9420 Im not sure though

Step-by-step explanation:

Hey There! Allow me to explain how to solve this (I will not say the answer bc I also don't know but here is how you can find it). As you see the shape is a Cyclinder & the formula for it is V=Bh or V=πr2h. You might wanna start with solving the problems (8x - 4) & (11x + 12) Use the order of PEMDAS (Parrenthesis, Exponets, Multiplication, Division, Addition, Subtraction.) to solve is so if solving (8x - 4) And if x = 8 than first begin with mutiliplying 8 x 8 (Because it says 8x and x = 8 which means we are multiplying) than subtract that with 4 (Which will be 64 - 4). Than for (11x + 12) you will wanna do 11 x 8 which is 88 added by 12 which that will be 100. Than use the formula (V=Bh or V=πr2h) And you should have you're answer! I hoped this help and sorry for not finding the answer but atleast I explained to you on how to solve it! <3

Answer:

t = 0.5m + 15

Step-by-step explanation:

0.5m + 15 = t

Step-by-step explanation:

the answer is 8 just divide lol