the equation 3s equals 21 can be used to find the number of students s in each van on a field trip how many students are in each van ​

Answers

Answer 1

Answer:

to be honest I don't know sorry


Related Questions

Roger is 71.5 inches tall. How many centimeters tall is she?
1 inch = 2.54 cm
Do not use a label - just numbers.

Answers

Answer:

181.61 centemeters

Step-by-step explanation:

Answer:

181.61

Step-by-step explanation:

Make a proportion:

1 inch = 2,54 cm

71,5 inches = x cm

x = 71,5 * 2,54 = 181,61 cm

what's the diameter plz help

Answers

18m because the radius is half of the diameter so just double the radius

help pls :)
how many real and complex roots does the graph have?

a. 2 real and 2 complex
b. 2 real and 4 complex
c. 4 real
b. 2 real

Answers

a or d dont read this heiejebdyueneidyebjwow isi ehbr

Mrs.Connners went to a shopping mall with $250 in her wallet. At the store, she bought a coat and spent 3/5 of the money she had in her wallet. How much money, in dollars, did she pay for the coat?

Answers

Step-by-step explanation:

step 1. 250(3/5) = 50(3) = 150.

step 2. She spent $150 for the coat.

Answer:

$150

Step-by-step explanation:

$250 ÷ 5 = 50

50 · 3 = 150

A circular pool has a radius of 10 feet. What is the area of the pool? Use 3.14 for it. The area of the pool is about ft?​

Answers

Answer:

314ft^2

Step-by-step explanation:

The area of a circle is found using this equation:

A=3.14r^2

r = radius

so if we know the radius is 10ft, we can put that into the equation and it will read:

A=3.14(10)^2

^2 means squared, for clarification.

Using PEMDAS we know to do exponents first

A=3.14(100)

Now multiply

A=314

and don't forget to add your units and square!

A=314ft^2

Shrina has read 10% of the books that are in the library. She has now read 327 books.

How many books are there in the library?

Answers

134 hope I helps with ur problem

Which one of the following are rational numbers?
8
0
10/3
7

Answers

Answer:

eight and zero...

Step-by-step explanation:

hope I help

The shaded area on the grid represents the part of a rectangular wall that was painted. Each small square on the wall has the same dimensions. What percentage of the wall was painted?

Answers

Answer:

68

Step-by-step explanation:

There are total of 5*5 = 25 rectangles on the wall. 17 of these are painted.

17 / 25 = 17*4 / 100

17 * 4 =  68

Answer 68%

Step-by-step explanation:

What is the value of 3 in the figure shown below?
с
4.3
D
61
3
3
53
A
4.3

Answers

9514 1404 393

Answer:

  66

Step-by-step explanation:

Angle D (x°) is the same measure as angle A. The measure of angle A is that required to make the total of angles in ΔABC be 180°.

  ∠A = 180° -61° -53° = 66°

The value of x is 66.

[1 and [2 are vertical angles. [2 has a measure of 31°. What is the measure of [1?​

Answers

Answer:

x+31°=180°

180°-31°=149°

answer

The line plot above shows the height of the baby giraffes at the zoo. What is the difference in height (in inches) between the shortest and the tallest baby giraffes?​

Answers

Answer:

3.5 inches

Step-by-step explanation:

Height of tallest baby giraffe = 42.75 inches

Height of shortest baby giraffe = 39.25 inches

Difference in height between the tallest and the shortest baby giraffes = 42.75 - 39.25 = 3.5 inches

The population of a certain species of insect is given by a differentiable function P, where P(t) is the number of insects in the population, in millions, at time t, where t is measured in days. When the environmental conditions are right, the population increases with resect to time at a rate that is directly proportional to the population. Starting August 15, the conditions were favorable and the. population began increasing. On August 20, five days later, there were an estimated 10 million insects and the population was increasing at a rate of 2 million insects per day.

Required:
What is the differential equation that models this situation?

Answers

Answer:

[tex]\frac{dP}{dt} \ =\ \frac{1}{5}P[/tex]

Step-by-step explanation:

Given

Variation: Directly Proportional

Insects = 10 million when Rate = 2 million

i.e. [tex]P = 10\ million[/tex] when [tex]\frac{dP}{dt} = 2\ million[/tex]

Required

Determine the differential equation for the scenario

The variation can be represented as:

[tex]\frac{dP}{dt} \ \alpha\ P[/tex]

Which means that the rate at which the insects increase with time is directly proportional to the number of insects

Convert to equation

[tex]\frac{dP}{dt} \ =\ k * P[/tex]

[tex]\frac{dP}{dt} \ =\ kP[/tex]

Substitute values for [tex]\frac{dP}{dt}[/tex] and P

[tex]2\ million = k * 10\ million[/tex]

Make k the subject

[tex]k = \frac{2\ million}{10\ million}[/tex]

[tex]k = \frac{2}{10}[/tex]

[tex]k = \frac{1}{5}[/tex]

Substitute [tex]\frac{1}{5}[/tex] for k in [tex]\frac{dP}{dt} \ =\ k * P[/tex]

[tex]\frac{dP}{dt} \ =\ \frac{1}{5}* P[/tex]

[tex]\frac{dP}{dt} \ =\ \frac{1}{5}P[/tex]

x-1=y what is the answer plz give me the answer

Answers

Answer:

X = 0Y = 1

First of all, observe that this is a line, since you can rewrite the equation as y−x+1=0 , which follows the pattern of the generic line ax+by+c=0 .

To draw a line you need two of its points, which you can connect.

To find two points, you can plug any value for one variable, and solve for the other.

For example, let's choose

x=0 . The equation becomes

0−1=y , and so y=−1 .

The first point is thus (0,−1).

Then, let's choose

x=1 . The equation becomes 1−1=y , and so y=0 . The first point is thus

(1,0).

Now you only need to draw the points

(0,−1)

Step-by-step explanation:

Hope it is helpful...

Which is the correct order of the numbers from least to greatest? -4/5, 3, 0.4, -1, -5/4​

Answers

Answer:

-5/4, -1, -4/5, 0.4, 3

Step-by-step explanation:

Answer:

-4/5 -1 -5/4 .4 3

Step-by-step explanation:

Your car repair bill was $390. You were charged $215 for parts and $35 per hour for labor.
How many hours did the repairs take?

Answers

Answer:

5 hours

Step-by-step explanation:

subtract 390 by 215 to get 175 then divide 175/35 to get 5

Omg Plzzzzz helpppp!!!!!

Answers

Answer:

D

Step-by-step explanation:

[tex]-5+2(7b+6)\geq 10b+7(1+11b)\\-5+14b+12\geq 10b+7+77b\\70b\leq 0\\b\leq 0[/tex]

Solve for the following proportion for v.

Answers

Answer:

20/ 11 and if u want it in decimal it's 1.818182

Answer:

v =5÷11×4

v=20÷11=

Step-by-step explanation:

1.82 is your answer may be it is wrong

Y=-2x+6 what is the y intercept

Answers

Answer:

the Y intercept is 6

Step-by-step explanation:

the Y intercept of a linear equation like that equation

any equation formed as: y=mx+b

B of the equation would always be the Y intercept

The y-intercept of the equation y = -2x + 6 is 6. It means that the line intersects the y-axis at the point (0, 6), where the y-coordinate is 6.

In the equation y = -2x + 6, the y-intercept represents the value of y when x is equal to zero.

To find the y-intercept, we substitute x = 0 into the equation:

y = -2(0) + 6

y = 0 + 6

y = 6

Therefore, the y-intercept of the equation y = -2x + 6 is 6. It means that the line intersects the y-axis at the point (0, 6), where the y-coordinate is 6.

To know more about coordinate:

https://brainly.com/question/32836021


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What is an equation of the line that passes through the points (4, -8) and (-4, 2)?
Put your answer in fully reduced form.

Answers

When you use slope formula to find the slope, (4,-8) and (-4,2) it equals M = -5/4

Write 2 1/2 miles in 3/4 hour as a unit rate

Answers

Answer:

3 1/3 mph

Step-by-step explanation:

2.5 ÷ 0.75 = 3.3

or

5/2 ÷3/4 = 5/2 · 4/3 = 20/6 or 10/3 = 3 1/3

For parallelogram ABCD, find the value of x

Answers

3x+20=5x-12
3x+20+12=5x-12+12
3x+32=5x
3x-3+32=5x-3
32=2x
32/2=2x/2
16=x
reflexive property of equality
x=16

Answer:16

Step-by-step explanation:

which graph represents exponential decay​

Answers

The top one. Exponential decay means going down very quickly, like a steep line.

Exponential growth is going up, by the way.

Which equation represents the line that passes through the point (3,-1) and is perpendicular to the graph of x+4y=10

Answers

Answer:

Step-by-step explanation: The given equation is in standard form, so it must be converted to slope-intercept form: y = mx + b to discover the slope is –2/3. To be perpendicular the new slope must be 3/2 (opposite reciprocal of the old slope).

4x - y = 13 represents the line that passes through the point (3,-1) and is perpendicular to the graph of x+4y=10.

What is perpendicular equation?

A perpendicular line is a straight line through a point. It makes an angle of 90 degrees with a particular point through which the line passes.

Given

x + 4y = 10

∴ 4y = -x + 10

∴ y = [tex]\frac{-1}{4} x + \frac{5}{2}[/tex]

so y = 4x + b pass through the point (3, -1)

⇒ -1 = 4 × 3 + b

⇒ -1 = 12 + b

⇒ b = -1 - 12

⇒ b = -13

∴ y = 4x -13

4x - y = 13

Hence, 4x - y = 13 represents the line that passes through the point (3,-1) and is perpendicular to the graph of x+4y=10.

Find out more information perpendicular equation here

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Yesterday, there were 80 problems assigned for math homework. Jenna did 45% of them correctly. How many problems did Jenna get right?

Answers

Answer:

36 questions was answered correctly

Step-by-step explanation:

80 x .45 = 36

Hope this helps

Have a great day :D

Which is a better estimate for the weight of a double-decker bus

Answers

Step-by-step explanation:

Coaches are typically sized to a height of 4.38 meters, whereas 'high-bridge' vehicles are usually around 20 centimeters higher. At an average height of 18.65 metres, integrated double-deckers are often permitted .

WILL GIVE BRAINLIEST. ARE THOSE EQUATIONS THE SAME

Answers

Answer:

no

Step-by-step explanation:

m+m+m = 3m

m+3=m+3

they are not equal

Hope it helps!

Answer:

yes because there is 3 m so m plus 3 is equivalent to it

Step-by-step explanation:

Line___is a transversal.

Answers

Answer:

C

Step-by-step explanation:

Line A is Parallel to Line B

Line C intersects Line A and B

Answer:

line C

Step-by-step explanation:

What is the initial value of the exponential function
represented by the table?
-2
1
3
-1
1
4
0
1
2
1
1
1
2
2

Answers

Answer:

o943

Step-by-step explanation:

The sum of 8 times b and twice g is equal to 32

Answers

That correct number for

AHHH HELP

An aquarium holds 11.94 cubic feet of water, and 2.6 feet long and 1.4 feet wide. What is its depth? Round your answer to the nearest whole number.

Answers

Answer:

The depth of the aquarium is 3 feet.

Step-by-step explanation:

From the formula for the volume of a bar we find that [tex]V=whl[/tex], where [tex]w[/tex] is the width, [tex]h[/tex] is the height (depth), and [tex]l[/tex] is the length of the bar (which in this case is the aquarium). So [tex]h=\frac{V}{wl}[/tex] and by substituting [tex]V=11.94[/tex], [tex]w=1.4[/tex] and [tex]l=2.6[/tex] we can see that [tex]h=\frac{V}{wl} = \frac{11.94}{2.6 \cdot 1.4} = 3.2802... \approx 3[/tex] feet (rounding to the nearest whole number).

So the depth of the aquarium is 3 feet.

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