please help me it is math

Answer:

you will need 21 vans total

Answer:

12 Vans

Step-by-step explanation:

16*12=196
196/(12+1/3*12)=196/16=12

Answer:

x = 4 / 3, y = 7 / 3

Step-by-step explanation:

We are given the following system of equations;

{ 7x - y = 7,      ⇒        Let us multiply the first equation by 2,

x + 2y = 6 }

2 * ( 7x - y = 7 )  ⇒  14x - 2y = 14  ⇒  Now add the two equations

+ x + 2y = 6           + x  + 2y = 6                          

14x + x = 14 + 6 ⇒ Simplify

15x = 20,

x = 4 / 3 ⇒ Now substitute this value of x into the first equation to solve for the value of y,

7 * ( 4 / 3 ) - y = 7 ⇒ Simplify,

28 / 3 - y = 7,

y = 7 / 3

Solution; x = 4 / 3, y = 7 / 3

Answer:

I think its 10

Step-by-step explanation:

Add all three then divide by three.

Answer:

There is a 20% of it landing on red

Step-by-step explanation:

add 6,9,15 to get 30 the 6/30=0.2 and multiply by 100

You can check you work by following the same process

please mark me as the brainliest

thank you

Answer:

27

Step-by-step explanation:

it's a lager number so it's greater

Answer:

27

Step-by-step explanation:

Positive is always greater than a negative.

Answer:

Population at start : 8,230.

The rate of growth: r = 1.25

x - number of the years;

Answer:

B ) f ( x ) = 8,230 * ( 1.25 ) ^x where 1.25 is the rate of growth.

Step-by-step explanation:

Jessica develops a function to model this 8230(1.25)ˣ, where 1.25 is the rate of growth.

In an ideal condition where there is an unlimited supply of food and resources, the population growth will follow an exponential order.

Jessica has been tracking the population of a town.

The population was 8,230 last year and has been increasing by 1.25 times each year.

The population growth function is;

[tex]\rm f(x)=P_0 x^t[/tex]

Substitute all the values in the formula;

[tex]\rm f(x)=P_0 x^t\\\\f(x) = 8230 (1.25)^x[/tex]

Hence, Jessica develops a function to model this 8230(1.25)ˣ, where 1.25 is the rate of growth.

Learn more about function here;

https://brainly.com/question/4637637

#SPJ2

Answer:

stop and save

Step-by-step explanation:

The reason for this is because if you can buy 5 apples for 1 dollar so that is 20 cents each but the other one is 45 cents for 1 apple at quick market

Answer:

stop and save because you can get two additional apples paying only 95 cents

Step-by-step explanation:

3x1.35= 4.05

5x1=5

Step-by-step explanation:

First open the bracket

2x+4-3x>-1

collect like terms

2x-3x>-1-4

-x>-5

dividing by -, the greater sign therefore changes to less than

-x/- <-5/-

=x<5

answer is x<5

Answer:

Step-by-step explanation:

Answer: m=1    

Step-by-step explanation:

Answer:

17,955,000

Step-by-step explanation:

Answer:

闭嘴黑鬼

Step-by-step explanation:

By the theorem,

48/20 = 36/x

x = 36(20)/48 =12(3)(4)(5)/((4)(12)) = 15

Answer: 15, second choice

Answer:

Given

¯¯¯¯¯¯¯¯¯

D

A

C

is a straight line, we can say its full measurement is 180°. If we know a segment of this angle,

∠

D

A

B

, is 105°, we can know that the other segment

∠

B

A

C

must equal 75, since

105

+

75

=

180

.

Once we've found the measure of

∠

B

A

C

to be 75°, and given the measure of

∠

A

C

B

to be 35, we can then find the measurement of

∠

A

B

C

.

Since we know that the sum of any triangle's angles is 180°, we can then use these known measurements as I said above.

75

+

35

+

m

∠

A

B

C

=

180

110

+

m

∠

A

B

C

=

180

m

∠

A

B

C

=

70

Answer:

the surface area of A is greater than the surface area of B

Step-by-step explanation:

A surface area: 112

B surface area: 104

A area: 60

B area: 60

Answer:

The surface area of A is greater than the surface area of B

Step-by-step explanation:

Volume = L x W x H

A= 3 x 2 x 10

= 60m^3

B = 2 x 6 x 5

= 60m^3

Surface Area = 2(l x w) + 2(l x h) + 2(w x h)

A = 2(3 x 2) + 2(3 x 10) + 2(2 x 10)

= 2x6 + 2x30 + 2x20

= 12 + 60 + 40

= 112m^2

B = 2(l x w) + 2(l x h) + 2(w x h)

= 2(2 x 6) + 2(2 x 5) + 2(6 x 5)

= 2x12 + 2x10 + 2x30

= 24 + 20 + 60

= 104m^2

Answer:

[tex](-\frac{1}{4}, \frac{5}{8} )[/tex]

Step-by-step explanation:

If you label the points on the axes, it will show that point K is actually on [tex]\frac{5}{8}[/tex] not [tex]\frac{3}{4}[/tex]

Answer:

16.0%

Step-by-step explanation:

Answer:

71-45 is 26

Step-by-step explanation:

Answer:

71-45 = 26

Step-by-step explanation:

Answer:

in total she will make $44.90.

Step-by-step explanation:

7.40(5)+7.90(1)=$44.90

Answer:

1

Step-by-step explanation:

Slope is essentially just the change in y divided by the change in x. "Change in y" just means the difference in the y-coordinates, while "change in x" means the difference in the x-coordinates.

Let's choose any two points: (-1, 0) and (0, 1). The difference in the y-coordinates is: 1 - 0 = 1. The difference in the x-coordinates is: 0 - (-1) = 1. Divide these:

1 ÷ 1 = 1

Thus, the slope is 1.

We can use the points (-1, 0) and (0, 1) to solve.

Slope formula: y2-y1/x2-x1

= 1-0/0-(-1)

= 1/1

= 1

Best of Luck!

Answer:

11 degrees

Step-by-step explanation:

90 - 79 = 11

Answer:

The answer would be function 2.

Step-by-step explanation:

I found this out by plugging in 0 into x. What I got then was one. So I found that function 2 has a spot on 0, 1. that is how I got the answer.

Brainliest would be appreciated.

Answer:

it is function 2

i plugged it in on desmos graph

Answer:

The ratio of shadow should be kept, then we have: x/25 = 3/5

=> x = 25 x 3/5 = 15

=> The flagpole is tall 15 feet

Hope this helps!

:)

Answer:

15 feet

Step-by-step explanation:

Length : shadow

3 : 5

X : 25

X/25 = 3/5

X = 25 × 3/5

X = 15

Answer:

85.5 minutes

Step-by-step explanation:

The amount of an element that will remain after time t can be expressed as a function of initial amount N0, time t, and half life th as;

Nt = N0 × e^(-λt)

Where;

Decay constant λ = ln(2)/th, substituting into the equation;

Nt = N0 × e^(-ln(2)t/th)

We need to make t the subject of formula;

Nt/N0 = e^(-ln(2)t/th)

ln(Nt/N0) = -ln(2)t/th

t = ln(Nt/N0) ÷ -ln(2)/th

Given;

Initial amount N0 = 760g

Final amount Nt = 11 g

Half life th = 14 minutes

the nearest tenth of a minute, would it take the element to decay to 11 grams can be derived using the formula;

t = ln(Nt/N0) ÷ -ln(2)/th

Substituting the given values;

t = ln(11/760) ÷ -ln(2)/14

t = 85.5 minutes

Answer:

1 mph = 1.46666667  fps

Answer:

An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value. a ≠ b says that a is not equal to b. a < b says that a is less than b. a > b says that a is greater than b.

Answer:

Raymond ate 5

Daniel ate 25

Step-by-step explanation:

x= Raymond

5x= Daniel because he ate 5 times as many as Raymond

x+5x=30

add like terms

6x=30

divide by 6

x=5 Raymond

5*5=25

25=Daniel

Answer:

C

Step-by-step explanation:

The first two are not parabola at all and the last one when graphed gives you a vertex of (3,9). The correct answer that gives you the vertex if (2,-9).

Hope this helps!

Answer:

Step-by-step explanation:

Hands you please help

Answer:

x = -6

Step-by-step explanation:

0 = In(x + 7)

x + 7 = e⁰

x + 7 = 1

x = 1 - 7

x = -6

Steps to solve:

0 = In(x + 7)

~Log definition

e^0 = x + 7

~Simplify

1 = x + 7

~Solve for x

1 - 7 = x + 7 - 7

-6 = x

Therefore, the answer is x = -6

Best of Luck!

Answer:

F(x)=(x-3)(x+8)(x-11)=0

(x-3)=0, (x+8)=0, (x-11)=0

X=3

X=-8

X=11