Mathematics College

The students in your class are going on a field trip. The ratio of teachers to students must be 1 to 7.
Which graph shows the number of teachers needed for 28 students?

The Students In Your Class Are Going On A Field Trip. The Ratio Of Teachers To Students Must Be 1 To

Answers

Answer 1

Answer:

4 teachers for 28 students

Step-by-step explanation:

28/7 = 4

Related Questions

Which of the following is equivalent to the complex number i24?

Answers

Answer: 1

Step-by-step explanation:

Rewrite as (i^4)^6

Rewrite i^4 as 1

Rewrite i^4 as (i^2) ^2

((i^2)) ^2)6

Rewrite i^2 as -1

((-1) ^2) 6

Raise -1 to the power of 2

1^6

One to any power is 1.

given. Round
The first three terms of a sequence are
to the nearest thousandth (if necessary).

1 , 5/4 , 25/16 find the 7th term.

Answers

Answer:

[tex] \frac{15625}{4096} [/tex]

Sales tax charged for a wallet was $2.45. The tax rate is 0.05%. Find the cost of the wallet. Show your work, show all of your steps.

Answers

Answer:

50

Step-by-step explanation:

which set of points lie on the given graph?

• (-3, 9), (-1, 5), (3, 3)
• (3, 9), (1, -5), (3, 3)
• (3, 9), (-1, 5), (3, 3)
• (-3, 9), (-1, 5), (3, -3)

Answers

The answer is B (3, 9), (1,-5), (3,3)
Second one is the correct answer

what is the range of h​

Answers

Answer:

-4 to 6

Step-by-step explanation:

The range is the y-axis, unlike the domain which is on the x-axis. So th points would go from -4, the lowest point, to 6 the highest point. If you need to specify, say intervals of 2 as -4 goes to -2, and 2 goes to 4.

Calculate the rate per litre at which a car uses petrol,if it uses 20l of petrol to travel 180 km​

Answers

Answer:

1 L of petrol is used to travel 9 km.

Step-by-step explanation:

You can find the answers through the ratio method

20 L : 180 km

1 L : x

( x is the number we must find )

20 x = 180

x =

x = 9 km

the slope of a line is 1, and the y-intercept is -1. what is the equation of the line written in slope-intercept form?​

Answers

Answer:

y=x-1

Step-by-step explanation:


The area is ___ square meters. UH HELP I need the steps if anyone can!?

Answers

ANSWER:
27m squared

STEP BY STEP:
-Find the area of the rectangle (6*3), which is 18
-Find the area of the triangle (6*2)/2=6
-The second triangle (3*3)/2=3
-Add all the answers up (27)
-Add the label (meters squared)
- your answer is 27m squared

Find the surface area of the prism

Answers

Answer:

dont you just add the numbers...?

Just add the numbers

What is the answer?

Answers

Answer: D

Step-by-step explanation:

First, you have to multiply 2 by 7, because m=7. Then you have to multiply7 by -1 because n=-1. So on the top, you will get 14- -7. Now on the bottom, its just 7 + -1, which is 6. When there is a minus sign and a negative sign next to each other, for example 14- -7, you have to add. Next, you had 14 and 7 to get 21. Finally, you have to divide 21/6 and you get 3.5, which as a fraction is 7/2.

hope this helps :)

Which expression is equivalent to ?

Answers

Answer :
84x-16y-10.6

Solution :
2(14x-3y+28x+12.2-5y-17.5)
= 28x-6y-56y+24.4-10y-35
= 84x-16y-10.6

what's 1+1 plese my mom is going to tak away my tablet and I'll even mark yo branlyist​

Answers

Answer:

2

Step-by-step explanation:

Imagine you have 1 cookie, and then you have another cookie.

1 cookie and then another cookie is 2 cookies.

MULTIPLE CHOICE PLS ANSWER THANKS

Answers

Answer:

I think answer is B

B.10x+150=180

Megan wants to spend no more than $300 planning a party. She spent $75 on food and wants to buy decorations that are $10 each. How many decorations can she buy​

Answers

Answer:

Step-by-step explanation:

10x + 75 ≤ 300

10x ≤ 225

x ≤ 22.50 on decorations

I bye a notebook for $8.00. It is on sale for 20% off.
What is the sale price?

Answers

Answer:

$6.40

^w^ -ash

With the sale the notebook when then cost $6.40.

Leonardo puts $450 in a bank account that earns 3.5% simple interest. How much interest will he earn in four years?

Answers

Answer:

$63

Step-by-step explanation:

Answer:

$63

Step-by-step explanation:

The botanist would like to estimate the average weight of mustard seeds grown in a certain type of soil; weight of the seeds is known to follow a normal distribution. The botanist collects a random sample of 10 mustard seeds and finds that the sample average and sample standard deviation are 528 mg and 49 mg respectively. Select from the following the correct 90% confidence interval for the true average weight of mustard seeds grown in Soil Type A using the above sample data.

a. (480.1, 539.9)
b. (525.2, 534.8)
c. (479.4, 540.6)
d. (473.6, 546.4)
e. The necessary assumptions have not been satisfied and the calculation cannot be performed.
f. (469.4, 550.6)

Answers

Answer:

The correct 90% confidence interval for the true average weight of mustard seeds grown in Soil Type A using the above sample data is (499.6, 556.4).

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

T interval

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.833

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 1.833\frac{49}{\sqrt{10}} = 28.4[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 528 - 28.4 = 499.6 mg

The upper end of the interval is the sample mean added to M. So it is 528 + 28.4 = 556.4 mg

The correct 90% confidence interval for the true average weight of mustard seeds grown in Soil Type A using the above sample data is (499.6, 556.4).

Andre is waiting for the school bus. He knows that 2 out of 6 cars in his town are white. He wants to determine the probability that at least two white cars drive by in a row. He uses a number cube as a simulation. He lets the numbers 1 and 2 represent a white car and lets all other numbers represent a car that is not white. He rolls the number cube 6 times and records the outcomes in the table below.
Trial Number Outcome
1 4, 3, 6, 1, 2, 4
2 5, 5, 1, 3, 6, 6
3 2, 5, 4, 4, 1, 3
4 6, 1, 5, 6, 6, 4
5 2, 1, 2, 6, 4, 5
6 3, 3, 1, 4, 2, 6
7 1, 5, 6, 2, 2, 3
8 3, 6, 4, 3, 4, 4
9 1, 1, 2, 1, 5, 6
10 4, 3, 3, 1, 5, 2
Based on the data, what is the probability that at least 2 white cars drive by in a row?
____%

Answers

Answer: hi

Step-by-step explanation:

work out m and c for the line y= x+4​

Answers

Answer:

M = 1, C = 4

Step-by-step explanation:

Just take note that all linear equation have the form Y = Mx + C.

Here you can read directly from the equation given.

i need helppp badly ​

Answers

Answer:

Answer is D hope this helps

Step-by-step explanation:

Answer:

D) Segment BF = 18

Step-by-step explanation:

24/36=18/27

2/3=2/3

D) Segment BF = 18

The arc length of this circle is 9.42 inches. Determine the length of the radius.

Complete your work in the space provided.

Answers

Answer:

Radius = 5.996958 (They probably just want “6”).

Step-by-step explanation:

9.42x4=37.68 (perimeter)

Perimeter=2[tex]\pi[/tex]r

37.68÷2[tex]\pi[/tex]=r

5.996958=r

Find the equation of the line passing through the point (8, -4) and slope -4.
A: y + 4x = 22
B: y + 4x = 28
C: y - 4x = 28
D: y + x = 36

Answers

Answer:

y+4x=36

Step-by-step explanation:

the answer isn't in the choice

Find the missing length of the right triangle below.
8 ft
15 ft

Answers

Answer:

23 or 19

Step-by-step explanation:

15+8= 23

23-4= 19

i added 15 and 8 because if you were to flatten the triangle it would be next to the base, so i added it. I subtracted 4 because side C doesn't look like it is is about 23 ft. it could be 20 too.

i am not exactly sure. sorry if you get it wrong. I am so sorry if i got it wrong.

Which of these is something you can pay for with the money in a savings account?

Answers

College is the correct answer

A closed rectangle box with a volume of 16 3 ft is made from two kinds of materials. The top and bottom are made of material costing 10 cents/ 2 ft and the sides from material costing 5 cents/ 2 ft . Find the dimensions of the box so that the cost of the materials is minimized. [Hint: The cost of each side is equal to the area of the side times its unit price]

Answers

Answer:

The dimensions of the box are;

2 feet, by 2 feet, by 4 feet

Step-by-step explanation:

The given parameters are;

The volume of the closed box = 16 ft³

The material with which the top is made = The material with which the bottom is made

The cost of the material with which the top and bottom is made = 10 cents/(ft.²)

The cost of the material with which the side is made = 5 cents/(ft.²)

Let 'x', 'y', and 'z' represent the length, width, and height of the material, we have;

x·y·z = 16...(1)

The total cost of the box = 2×10×x×y + 2×5×x×z + 2×5×y×z

∴ The total cost of the box = 20·x·y + 10·x·z + 10y·z...(2)

From equation (1)

z = 16/(x·y)

Therefore, we have;

20·x·y + 10·x·z + 10y·z. = 20·x·y + 10·x·16/(x·y) + 10y·16/(x·y)

20·x·y + 160/(y) + 160/(x)

Differentiating, we get;

f'(x) = 20·y - 160/x²

f'(y) = 20·x - 160/y²

20·y - 160/x² = 0

y = 8/x²

20·x - 160/y² = 0

x = 8/y²

∴ x = 8/(8/x²)² = x⁴/8

8 = x⁴/x = x³

x = ∛8 = 2

The length, x = 2 feet

y = 8/x² = 8/2² = 2

The width, y = 2 feet

z = 16/(x·y) = 16/(2 × 2) = 4

The height of the box, z = 4 feet

Therefore, the dimensions of the box are 2 feet, by 2 feet, by 4 feet.

176.625 rounded to the nearest tenth​

Answers

Answer:

176.6

Step-by-step explanation:

Answer:

180 idrk

Step-by-step explanation:

WHOEVER GET'S THIS QUESTION RIGHT I WILL GIVE A BRAINLIEST


The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge lengths. Find the volume of the right rectangular prism in centimeters. (Figure not to scale)


A)
12 1 / 2 cm^3


B)
45 cm^3


C)
67 1 / 2 cm^3


D)
85 cm^3

Answers

Answer:

c. 67.5 cm^3

Step-by-step explanation:

V=whl

v=5*3*4.5

v=15*4.5

v=67.5 c^3

So C would be correct

Hope i helped, Brainliest would be appreciated!

Have a nice day!

 -Aadi x

The price of an item has been reduced by 35%. The original price was $25.

Answers

Step-by-step explanation:

what thanks for free points btw

Answer:

not sure ans sorry if its wrong but i think its 8.75

In a poll, 417 students voted. Nominee D received 2/3 of the votes. How many did nominee D receive?

Answers

417/3 = 139 x 2 = 278

= 278

Answer:

278 votes

Step-by-step explanation:

[tex]2/3 * 417 = 278[/tex]

i have $2 in my pocket what might be in my pocket (number puzzle)

Answers

Answer:

$2

Step-by-step explanation:

You might have spend the two dollar and got something small and put it in your pocket?
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