There are 15 boys in the class of 40 learners. What is the ratio of boys to girls in the classroom????​

Answers

Answer 1
15 : 25
since there’s 40 learners and we alrdy know theres 15 boys, there would be 25 girls
15+25=40
Answer 2

Answer:

So I guess in this case we assume there are no nonbinary or genderqueer kids in the class

boys would be 15

girls would be 25

the simplified ratio would be 3/5


Related Questions

Ian needs to order some new supplies for the restaurant where he works. The
restaurant needs at least 593 spoons. There are currently 161 spoons. If each set on
sale contains 6 spoons, write and solve an inequality which can be used to determine
X, the number of sets of spoons Ian could buy for the restaurant to have enough
spoons

Answers

Answer:

72 sets

Step-by-step explanation:

(Easy way)

593 -161=432 spoons needed

432/6 =72 sets

(Harder way)

6= 1

432 =x

432 = 6x

x=72

Answer:

Inequality: 6x + 161 ≥ 593

Answer: x ≥ 72

Step-by-step explanation:

Have a good day :)

This is hard please help

Answers

Answer:

SA = 208 in²

Step-by-step explanation:

SA = 2(2)(7) + 2(2)(10) + 2(10)(7) = 208 in²

Answer:

208 in^2

Step-by-step explanation:

SA: 2(w · l + h · l + h · w)       formula

SA: 2(2 · 7 + 10 · 7 + 10 · 2)      plug the numbers in- w: width, l: length, h: height

SA: 2(14 + 70 + 20)          find area of 3 sides with different areas

SA: 28 + 140 + 40       doubling

SA: 208       final answer

Pls help with this asap

Answers

The answer is A and D

4. Which set of ordered pairs represents a function?

(1) {(0,4), (2,4),(2,5)}
(2){(6,0), (5,0),(4,0)}
(3) {(4,1),(6,2), (6,3), (5,0)}
(4) {(0,4),(1,4), (0,5),(1,5)}​

Answers

Answer: (2) {(6,0), (5,0),(4,0)}

It is a function, where each value is associated with exactly one output.

Step-by-step explanation:

A relation is said to be a function if the first components of the ordered pairs are associated with exactly one value of the second components of the ordered pair.

(1) {(0,4), (2,4),(2,5)}

here 2 is associated with 2 different values of second component.

Thus it is not a function.

(2) {(6,0), (5,0),(4,0)}

It is a function, where each value is associated with exactly one output.

(3)  {(4,1),(6,2), (6,3), (5,0)}

It is not a function as 6 is associated with 2 different values of second component.

(4) {(0,4),(1,4), (0,5),(1,5)}​

It is not a function as 0 and 1 are associated with 2 different values of second component.

A student records the repair cost for 17 randomly selected TVs. A sample mean of $73.10 and standard deviation of $16.01 are subsequently computed. Determine the 90% confidence interval for the mean repair cost for the TVs. Assume the population is approximately normal. Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Answers

Answer:

49.34 i think

Step-by-step explanation:

I need help I’ll mark brainy

Answers

Answer:

14.75

Step-by-step explanation:

12.50*0.18 = 2.25

12.50 + 2.25 = 14.75

19.000


Do you have a question about how much

Help me I need help this is due today

Answers

the answer is C

there are 2 bars so you divide 2 by 1/8 to see how many eights there are

2 / 1/8 = 16

A full bottle holds 1/4gallon of juice, If of3/5
the juice has beenpored how much
juice is left in the bottle?

Answers

Answer:

1/10 gallon

Step-by-step explanation:

2/5 left of 1/4 gallon

2/5 x 1/4 = 2/20 = 1/10 gallon

1. Simplify the expression below.
2(x + 2) + 3(-x-7) -5 ( 2x - 4)

Answers

Answer: -11x+15

Step-by-step explanation: distributed property: 2x+2-3x-7-10x+20, -11x+15

What are the next 4 multiples of 4/8 in a fraction

Answers

Answer:

8/16, 12/24, 16/32, and 20/45

Step-by-step explanation:

Find x in each triangle! Will award brainliest

Answers

Answer:

First triangle x=9

Second triangle x=20

Step-by-step explanation:

Using Pythagorean theorem

40^2+x=41^2

1600+x^2=1681

-1600        -1600

x^2=81

To find x we do the opposite of powers and find the squared

x=9

Second triangle

21^2+x^2=29^2

441+x^2=841

-441        -441

x^2=400

x=20

In this combined function, the domain is all real numbers for x except? (x+6) / (x-9)

-6
6
9
-9

Answers

To find the excluded values, equal the denominators and the divisor to.

The answer is 9

Find the surface area of the rectangular prism (above) using its net (below).

Correct answer will receive a cookie and branilist

Answers

Answer:

62

Step-by-step explanation:

15+15+10+10+6+6= 62

In semiconductor manufacturing, wet chemical etching is often used to remove silicon from the backs of wafers prior to metalization. The etch rate is an important characteristic in this process and known to follow a normal distribution. Two different etching solutions have been compared, using two random samples of 10 wafers for each solution. Assume the variances are equal. The etch rates are as follows (in mils per minute):

Solution 1 Solution 2
9.9 10.6 10.5 10.2
9.4 10.3 10.6 10.2
9.3 10.0 10.7 10.7
9.6 10.3 10.4 10.4
10.2 10.1 10.5 10.3

Required:
a. Construct normal probability plots for the two samples. Do these plots provide support for the assumptions of normality and equal variances? Write a practical interpretation for these plots.
b. Do the data support the claim that the mean etch rate is the same for both solutions? In reaching your conclusions, use α = 0.05 and assume that both population variances are equal. Calculate a P-value.
c. Find a 95% confidence interval on the difference in mean etch rates

Answers

im really smart (no im not thats why im here)

Write the equation of the line in SLOPE- INTERCEPT form:
1. (4, 2); slope 3
2. (3, -1); slope 4
3. (-4,-2), (4,0)

Answers

Answer:

Step-by-step explanation:

1) slope = m = 3

(4 , 2) ;  x₁ = 4 ; y₁ = 2

y - y₁ = m(x  - x₁)

y - 2 = 3(x - 4)

y - 2 = 3x - 4*3

y - 2 = 3x - 12

y  = 3x - 12 + 2

y = 3x - 10     {Slope -intercept form: y = mx + b}

3) (-4 , -2) , (4 , 0)

We have to find the slope

[tex]Slope =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{0-[-2]}{4-[-4]}\\\\=\frac{0+2}{4+4}\\\\=\frac{2}{8}\\\\=\frac{1}{4}\\[/tex]

m = 1/4  ; (4 , 0)

y - y₁ = m(x  - x₁)

[tex]y - 0 = \frac{1}{2}(x - 4)\\\\y =\frac{1}{2}x - 4 *\frac{1}{2}\\\\y =\frac{1}{2}x - 2[/tex]

Please help I’ll mark you as brainliest if correct

Answers

Answer:

The answer you clicked is correct.

Step-by-step explanation:

1 teacher = 25 scholars.

PLS HELP TIMEDDDDDD I NEED HELP

Answers

Answer:

Option 3:  81 pi cu. in

Step-by-step explanation:

evaluate 13+ 6/y when y=6

Answers

Answer:

14

Step-by-step explanation:

13+6/6=13+1=14

Answer:

14

Step-by-step explanation:

13+6/6=13+1=14

14 is the answer

which is the largest interval over which the function shown in the table is increasing?
x y=-- x2 ?
-4
-8
-
-2
-2
(x, y)
(-4,-8)
(-2,-2)
(0,0)
(2.-2)
(4.-8)
0
NO
-2
4
-8
O
A. x < -2
O B. x<0
C. X>0
D. X> 2

Answers

Answer:

x < 0

Step-by-step explanation:

If you were to graph the function, you would get a parabola that opens down with the vertex at (0, 0).  So, the graph is increasing from -∞ to 0.

Which choice is equivalent to the quotient below? ​

Answers

Hopes this helps:

Answer: B. 4

hey guys, answer this question trust me

Answers

I’m sorry but there is no image

Answer:

okay dokey

Step-by-step explanation:

ok i answered thanks for the points

I WILL GIVE BRAINLIEST IF YOU ANSWER THIS QUESTION CORRECTLY!What is the shape of the distribution shown below?
Choose 1 answer:

(Choice A)
The distribution is left-tailed.

(Choice B)
The distribution is approximately symmetrical.

(Choice C)
The distribution is right-tailed.

Answers

Answer:

pretty sure it's B!

Step-by-step explanation:

B the distribution is approximately symmetrical

A store sells 8 cans of for ​$22. How much would it cost you to buy 3 cans of fruit cocktail? ​?

Answers

the answer is 8.25 or 8 1/4

you can get this by dividing 22 by 8 to see the price for one can. this gives you 2.75

now you want to know how much 3 cans would cost. we know one can costs 2.75, so we multiply that by 3.

this would give you 8.25 which is your answer

if this was useful please mark brainliest! (>∀<)

Answer:

3 cans of fruit cocktail would cost $8.25

Step-by-step explanation:

[tex] \frac{22}{8} = 2.75[/tex]

2.75*3=8.25

please answer asap! no scam links or scam comments or reported.

Answers

Answer:

C

Step-by-step explanation:

Answer:

B. The longer a skydiver is in freefall, the more feet they fall per second

Step-by-step explanation:

Brendon is a ticketing clerk at a zoo. Which of the following is a statistical question that Brendon can be asked?
A. What is the price of the entry ticket for adults?
B. How many children visited the zoo last Sunday?
C. How many adults visited the zoo on Sundays?
D. What time does the zoo open?

Answers

Answer:

Letter A

Step-by-step explanation:

He is the ticket clerk so it makes sense people would ask about the ticket prices.

I’ll mark you if you get the right answer and I have another problem so if you can find it pls help!

Answers

Answer:

D

Step-by-step explanation:

1/2 * 3/4 equals 0.375 which is less than .5

.5= 1/2

so therefore,  im right i guess.

A satellite system consists of 4 components and can function if at least 2of them are working. If each component independently works with probability 0.8, what is the probability the system will function?

Answers

Answer:

X follows binomial distribution with n=4, p=0.6, q= 0.4. To make the system function adequately, at least 2 components should work well.

Step-by-step explanation:

Hope this helps

Answer:

0.9728

Step-by-step explanation:

We have 2 options for the system to fail - no components work, or only one works.

The probability that no components work is:

[tex]0.2^4 = 0.0016[/tex]

The probability that one SPECIFIC component works and the others failed is:

[tex]0.2^3 \cdot 0.8 = 0.0064[/tex]

And because there's 4 components, the chance that EXACTLY ONE works but the others don't is:

[tex]4 \cdot 0.0064 = 0.0256[/tex]

So we sum the probabilities:

[tex]P_{failure} = 0.0016 + 0.0256 = 0.0272\\P_{works} = 1 - P_{failure} = 0.9728[/tex]

Which is the equation of a line perpendiculat to the line with the equation 3x + 4y = 7?

Answers

Answer:

What do you need to know?

Step-by-step explanation:

Answer:

Step-by-step explanation:

A rectangle measures 2 1/2 meters by 1 3/4 meters. What is its area?

Answers

Answer:

4 3/8

Step-by-step explanation:

1. We can use the formula

Area = L (length) x W (width)

2. The area is unknown so we can substitute it for a

  The length and width are both known, so we can plug them in.

a= 2 1/2 x 1 3/4

3. Solve by multiplying

a=4 3/8

Area of the rectangle is [tex]4\frac{3}{8}[/tex] meter square

What is Area?

Area is the quantity that expresses the extent of a region on the plane or on a curved surface

What is rectangle?

Rectangle is a quadrilateral with four right angles

Area of the rectangle = Length × Width

Length of the rectangle = [tex]2\frac{1}{2} =\frac{5}{2}[/tex]

Width of the rectangle = [tex]1\frac{3}{4}=\frac{7}{4}[/tex]

Area of the rectangle = [tex](\frac{5}{2}).(\frac{7}{4})=\frac{35}{8}=4\frac{3}{8}[/tex] meter square

Hence, the area of the rectangle is [tex]4\frac{3}{8}[/tex] meter square

Learn more about Area and rectangle here

https://brainly.com/question/9655204

#SPJ2

Type the correct answer in the box.
2 units
2 units
2 units
8 units
2 units
2 units
2
2 units
6 units
The area of the figure is
square units.

Answers

The area of the figure is 80 units
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