In a class, the ratio of the boys to the girls is 5:3. There are 15 girls in the class
8. Which of the following equation represents the ratio of the number of boys to the number of girls in the class?
A.5/3=×/15
B.5/3=15/×
C.5/15=3/×
D.3/5=×/15
9. How many boys are there in the class?
A. 10 boys
C. 20 boys
B. 15 boys
D. 25 boys

10. How many students are there in the class?
A. 30 students
C. 40 students
B. 35 students
D. 45 students​

Answers

Answer 1

Answer:

ratio of girls to boy :5:3

Step-by-step explanation:

=5 x /8 x  100

x cancels x


Related Questions

Which of the following shows numbers ordered from least to greatest

Answers

Answer:

A

Step-by-step explanation:

It is option A: -2, -1, 0, 1

9) A store is selling t-shirts for $8
each. If Britt buys 15 shirts how
much will she pay for them? ?

Answers

Answer:

$120 before tax.

Step-by-step explanation:

8 * 15 = 120

Answer:

She will pay $120 for 15 shirts

Step-by-step explanation:

multiply 15 x 8 = 120

Hope this helps:)........if not then sorry for wasting your time and may God bless you:)

Help mat math Math ASAP

Answers

Answer:

(11, 2 )

Step-by-step explanation:

3y + 2x = 28 → (1)

x = 5y + 1 → (2)

substitute x = 5y + 1 into (1)

3y + 2(5y + 1) = 28 ← distribute parenthesis on left side and simplify

3y + 10y + 2 = 28

13y + 2 = 28 ( subtract 2 from both sides )

13y = 26 ( divide both sides by 13 )

y = 2

substitute y = 2 into (2)

x = 5(2) + 1 = 10 + 1 = 11

solution is (11, 2 )

can you please help me ​

Answers

Answer:

the answer is  XD

Step-by-step explaion:

Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
20, 10, 5,

Answers

Answer:

Common ratio = 1/2.

G. S.

Step-by-step explanation:

10/20 = 1/2 and 5/10 = 1/2 so its Geometric.

Square pyramid surface area?

Answers

Answer:

576 cm^2

Step-by-step explanation:

16^2 + 2 x 16 x 10

  256 + 32 x 10

    256 + 320

       = 576

A cylinder has a height of 23m and a volume of 18488m^3 what is the radius of the cylinder. Round your answer to the nearest whole number

Answers

Answer:

Radius=16m

Step-by-step explanation:

It is given that A cylinder has a height of 23 m and a volume of 18,488 m³. then, the volume of the cylinder is given as:

Substituting the given values, we get

Thus, the radius of the cylinder will be 16m.

Answer:

Radius = 16m

Step-by-step explanation:

It is given that A cylinder has a height of 23 m and a volume of 18,488 m³. then, the volume of the cylinder is given as:

[tex]v=\pi r^{2} h[/tex]

Substituting the given values, we get

[tex]18488=3.14(r^{2} )(23)[/tex]

[tex]18488=72.22(r^{2} )[/tex]

[tex]r^{2} =255.99[/tex]

[tex]r=\sqrt{255.99}[/tex]

[tex]r=15.99[/tex]

[tex]r=16m[/tex]

Thus, the radius of the cylinder will be 16m.

Graph the line that passes through the points (0, -5) and (5, 1) and
determine the equation of the line.
y
10
9
00
7
6
5
4

Answers

Answer:

y = 10/1x - 5

Step-by-step explanation:

y=mx+b

m=slope  b=y-intercept

therefore

y=10/1x -5

(10/1 is a fractions just too lazy to make it a fraction on here)

Jen was making cake pops for the bake sale. After 3 hours, she had completed half of the work. She called Maryna for help and together they finished everything in half an hour. How long would it take Maryna to finish the job alone if she replaced Jen after Jen baked for 3 hours?

Answers

I'm going to assume in an hour and a half, correct me if I'm wrong

Answer:

It will take 0 hours and 36 minutes

Step-by-step explanation:

a rectangular tub has a perimeter of 16 feet. if the length of the tub is 6 feet, what is the width of the tub?

Answers

Answer:

The width is 2

Step-by-step explanation:

The formula is P= (L times W)x2. 6x2=12. 16-12=4. 4/2=2. The width is 2

Your teacher decides to split the class into 4 equal groups with no more than 5 student in each group. Write and solve an inequality to represent the number of students in the class.
( I got c/4≤5. I got 20 students too. Am I correct?) * c represents class

Answers

Answer:

Then there is at most 20 students = 4 groups x 5 students per group

N <=20

Step-by-step explanation:

mark me brainliest!!

While riding her bike to the ocean and back home 7 times, Michelle timed herself at 54 min, 55 min 50 min, 48 min 42 min, 50 min, and 61 min. She had set a goal of averaging 51 minutes for her rides. How many minutes will she need to spend on her eighth ride to attain her goal?

Answers

jvghiuuytuury   ioiy6r yyguytt7i y7t65yu

What information do banking institutions use to help detect fraudulent
transactions?
A. Local business' sales forecasts
B. National financial trends
C. Internet search engine statistics
D. Historical transaction data

Answers

The information that banking institutions use to help detect fraudulent

transactions is Historical transaction data.

How do banks protect their customer information?

Banks do use some kind of Encryption to protect their customer's information. Through that, a person's transactions and personal information  are protected online via encryption software.

Note that a lot of times, fraudulent activities do occur and as such banks or Financial institutions through the use of data and data analytics of the transaction process will help them better know what occurred.

Learn more about banking  from

https://brainly.com/question/25664180

radius of a circle with a circumference of 20pi

Answers

Answer:

3.14 cm²

Explanation:

1.) 2πr = 20π

2.) r =20/2

3.) r = 10 cm

4.) The radius of the circle = 10 cm

5.) The area = πr2 ≈ 3.14 ×(10)² = 3.14 ×(100) = 314 cm²

6.) 3.14 centimeters squared

Simplify the expression (64)2.

Answers

Answer:

See below.

Step-by-step explanation:

(64)2

64*2

128

-hope it helps

Answer:

128

Step-by-step explanation:

it's multiplication(64)2

64*2

128

HELPPPPP
what is the distance, to the nearest unit, between your house and the subway stop?

Answers

Answer:

9

Step-by-step explanation

brainlypatrol keep  deleting my answers


mPQ = 113°. What is mZPOQ?
Enter your answer in the box.
113°
I NEEDHELP ASAPPPPP

Answers

A circle has 360 degrees internal, so mPOQ would be 360 - 113= 247 degrees
Good luck!

please help i will mark braineist. read the following sentence. She ran towards them her hat flew off her curls bounced as she charged toward the soldiers trying to invade her home What type of error does this example contain? A

misplaced participial phrase

A fragment missing a subject

A fragment missing a verb

Arun-on sentence ​

Answers

The Answer is D it is a run on, it needs to have commas instead of just piling it all together, you welcome

Do exactly what it’s says please!

Answers

Answer:

p(1+r/100)^t where P is the amount of money to be invested ,r is the rate at which its compounded annually and t is the duration or period NOTE 1is constant

Solve each equation
4) -2x = 28

Answers

Answer:

X=-14

Step-by-step explanation: I did it before

the answer would be x=-14

first you want to get x by itself so you would divide by -2 on each side of the equation, therefore 28/-2 would be -14 is equal to the x value.

The cost of a concert ticket last week was $60.00. This week a concert ticket is $75.00. What is the percent increase of the ticket from last week to this week

Answers

Answer: The increase was by 25 %. (125% change)

Step-by-step explanation: 75-60 is 15, so the difference was that it increased by $15. 15 divided by 60, is .25, or 25%. Meaning it increased by 25%, or there was an 125% change.

Micaela answered 158 questions correctly on her multiple choice math final that had a total of 200 problems. What percentage of questions did Micaela answer correctly on the final exam?

Answers

Answer:

79%

Step-by-step explanation:

Based on the given conditions, formulate:  158 ÷ 200

Reduce the fraction: 79/100

Reduce the fraction:

Rewrite a fraction with denominator equals 100 to a percentage: 79%

Answer: 79%


An angle measures 6° less than the measure of its supplementary angle. What is the
measure of each angle?

Answers

Answer:

The angles are 87 degrees and 93 degrees.

Im not sure if its correct-

Step-by-step explanation:

x+(x-6)=180

2x=174

x=87

What is the first multiple of 191

Answers

Answer:

382

Step-by-step explanation:

To find the first multiple, we can just add 191 to itself.

191 + 191 = 382

Best of Luck!

Step-by-step explanation:

382

..................

What is the percentage chance of choosing someone who owns a cat from this group?

Answers

Answer:

Answer: 40% out of 100% Explanation: I did the math

Answer:

There is  a 36% chance of choosing someone who owns a cat.

Step-by-step explanation:

4 out of the 11 people listed own cats. So you need to divide 4 by 11.

4/11 = 0.36 (rounded to the nearest tenths)

Hope that helps!

A) 4+10+8=
B) 5-9+1=
C) -8-2+3=
D) -15+8-7=
E) 24+6-12=
F) 18-3-21=

Answers

Answer:

See below.

Step-by-step explanation:

A) 4 + 10 + 8 = 22

B) 5 - 9 + 1 = -3

C) -8 - 2 + 3 = -7

D) -15 + 8 - 7 = -14

E) 24 + 6 - 12 = 18

F) 18 - 3 - 21 = -6

It is known that 10% of the 9-year old children in a town have three siblings. Fifteen 9-year old children are selected at random. Find the probability that more than 3 of these selected children have three siblings (round off to second decimal place).

Answers

Using the binomial distribution, it is found that there is a 0.0555 = 5.55% probability that more than 3 of these selected children have three siblings.

What is the binomial distribution formula?

The formula is:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.

In this problem, for the parameters, we consider that:

10% of the 9-year old children in a town have three siblings, hence p = 0.1.Fifteen 9-year old children are selected at random, hence n = 15.

The probability that more than 3 of these selected children have three siblings is given by:

[tex]P(X > 3) = 1 - P(X \leq 3)[/tex]

In which:

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)[/tex]

Then:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{15,0}.(0.1)^{0}.(0.9)^{15} = 0.2059[/tex]

[tex]P(X = 1) = C_{15,1}.(0.1)^{1}.(0.9)^{14} = 0.3432[/tex]

[tex]P(X = 2) = C_{15,2}.(0.1)^{2}.(0.9)^{13} = 0.2669[/tex]

[tex]P(X = 3) = C_{15,3}.(0.1)^{3}.(0.9)^{12} = 0.1285[/tex]

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.2059 + 0.3432 + 0.2669 + 0.1285 = 0.9445[/tex]

P(X > 3) = 1 - 0.9445 = 0.0555

0.0555 = 5.55% probability that more than 3 of these selected children have three siblings.

More can be learned about the binomial distribution at https://brainly.com/question/24863377

Use a difference identity to find the exact value of tan 15.

Answers

X minus positive three minus -2 equals 7-15

Answer:

[tex]2-\sqrt{3}[/tex]

Step-by-step explanation:

[tex]tan15 = tan(45 - 30)=\frac{\tan{45}-\tan{30}}{1+\tan{45}\tan{30}}\\\\=\frac{1-\frac{1}{\sqrt{3}}}{1+\frac{1}{\sqrt{3}}}\\\\\\=\frac{\sqrt{3}-1}{\sqrt{3}+1}\\\\\\[/tex]

[tex]=\frac{(\sqrt{3}-1)^2}{3-1}\\=\frac{3+1-2\sqrt{3}}{2}\\=2-\sqrt{3}[/tex]

The graph of y=mx is given by the table. Find the coefficient m and fill in the table:

x 8 6 4 0 −2 −8 −10
y 8


find the blanks

QUICKLY PLEASE

Answers

Answer:

6=6

4=4

0=0

-2=-2

-8=-8

-10=-10

Simplify -1/2(32x-40)+(20x-4)

Answers

-4x - 20

Step-by-step explanation:

-1/2 (32x - 40) + ( 20x - 40)

open the bracket

-1/2 × 32x = -16x

-1/2 × -40 = 20

.

. . -16x + 20 +20x - 40

collect like term

-16x + 20x + 20 - 40

4x - 20

simplify = 4(x-5)

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