In a class, everyone studies French or German, but not both languages. One third of the girls and the same number of boys study German. Twice as many boys as girls study French. Which of the total number of boys and girls in my class

Answers

Answer 1

Answer:

32

Step-by-step explanation:

Let the number of girls in the class be 3. Then the number of girls who study German is , as is

the number of boys who study German. So the number of girls who study French is 2 and the

number of boys who study French is 2 × 2 = 4.

Therefore the total number of boys and girls in the class is + + 2 + 4 = 8 and hence is a

multiple of 8. Of the options, only 32 is divisible by 8.


Related Questions

Just ratios, please help
Express the ratio in lowest terms. (Enter your answer in fraction form.)
80/32
Express the ratio in lowest terms. (Enter your answer in fraction form.)
24 to 21
Express the ratio in lowest terms. (Enter your answer in fraction form.)
2/9 to 7/6
Express the ratio in lowest terms. (Enter your answer in fraction form.)
4 1/2 to 2 1/2

Answers

80/32 -> 10/4 -> 5/2 (divided by 8, then by 2)

24/21 -> 8/7 (divided by 3)

2/9 to 7/6 -> 4/21
Find least common denominator (18), and fractions/ratio become 4/18 to 21/18. Multiply both times 18 to eliminate the denominators = 4 to 21 = 4/21

4 1/2 to 2 1/2 -> 9/2 to 5/2 -> 9/5
Convert mixed numbers to fractions:
9/2 to 5/2
Multiply both by 2 to eliminate the denominators, and the ratio is 9 to 5 = 9/5

Help me if u can thnx ✨✌️

Answers

Answer:

40/9

$189

Step-by-step explanation:

1 2/3 / 3/8 =

4 4/9 = 40/9

6.85 x 315 - 6.25 x 315 = $189

Hope that helps!

Answer:

ik gonna let u solve this question but I explained what u need to do to solve it

R
56
30°
T
S
What is the measure of Angle R?
plz help

Answers

Answer:

94

Step-by-step explanation:

180-30-56=94 degrees

A man places a 20 foot ladder against a 16 foot What is the measure of the angle formed by the ladder and the ground?

Answers

Answer:

is there any more context?

Step-by-step explanation:

Answer:

53.130°

Step-by-step explanation:

tan(x)=16/12

x is used in replacement of theta symbol

What is the answer to my question

Answers

672 cm³
Step-by-step explanation:
10x7x9=630
2x3x7=42
630+42=672

Give two reasons why this shape is a square when x = 5.
(3x - 2)
(x + 8) cm​

Answers

Step-by-step explanation:

If we put 5 in X we get:

1. 3x-2 = 3(5)-2 = 15-2 = 13

2. x+8 = 5+8 = 13

So: 3x-2=x+8.

Find the missing angles.

Answers

Answer:

b=123

c=123

Step-by-step explanation:

Both b and c are 123

1. A square pizza box has an area of 155 cm^2. Which is the best estimate of the side length of the pizza box?
A 12 B. 129 C. 124 D. 121​

Answers

Answer:

C.) 12.4

Step-by-step explanation:

The square root of 155 needs to be found.

It's about 12.4498996.

Thinking that your options are supposed to be decimals, the closest rounded answer would be C.

guys what does integer mean in mathematicians , plss help i kind of forgot✌​

Answers

Answer:

Integer is a whole number; a number that is not a fraction.

Step-by-step explanation:

The area of a right triangle is 12 cm2. Which of the following could be the lengths of the legs of the triangle?

2 cm and 6 cm
4 cm and 6 cm
3 cm and 2 cm
3 cm and 4 cm

Answers

Answer:

6 and 4

Step-by-step explanation: since it is "cm2" it means it was already halved. This means that the answer was originally 24, 6x4 is the only one that equals 24.

40% of the fruits in a bag are mangoes and the remainder is orange. If there are 120 fruits in the bag and 10% of the mangoes are ripe, how many ripe mangoes are in the bag?

Answers

Answer:

15 mangoes are ripe understand ok

Can someone please help me with math you probably will have to answer it on desmos.

Answers

Answer:

solution - (2,1)

For the graph - just copy my graph

Step-by-step explanation:

The equations are fully simplified already so all we have to do is graph them and find the solution

The solution being where the two lines graphed intersect

As you can see in the graph below the two lines intersect at point (2,1) therefore the solution to the system of equations is (2,1)

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Answers

Answer:

huh i am very confused

Step-by-step explanation:

ok got it :DHave a great day!!

Find the value of x.

Answers

Answer:

x = 2

Step-by-step explanation:

the radius is 5

both triangles are congruent because of the SAS theorem.

x = 2 because corresponding parts of congruent tringles are congruent.

Please help me in these 2 questions ASAP! Thanks a lot!

Answers

Answer:

see explanation

Step-by-step explanation:

12

The explicit formula for a geometric sequence is

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = - 1 and r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{-5}{-1}[/tex] = 5 , then

[tex]a_{n}[/tex] = - [tex]5^{n-1}[/tex]

13

Using the explicit formula for a geometric sequence

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = - 48 and r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{96}{-48}[/tex] = - 2 , then

a₁₀ = - 48 × [tex](-2)^{9}[/tex] = - 48 × - 512 = 24576

Select all expressions that are equal to 3 1/4.
What answer is it.
26x1/8 2 1/8 ×2 4×13 1/4×3 13×1/4

Answers

Answer:

13×1/4

Step-by-step explanation:

turn into improper fraction

HELPPPPP ME PLEASEEE

Answers

Step-by-step explanation:

write and say i am not understanding

Answer:

Ok ok, trust me this is not a scam nor hack

Step-by-step explanation:

I didn't no idea to explain in words so i edited the photo

Mia has filled 34 of the fish tank with water. If the
tank holds 32 gallons, how many gallons has she
put in the tank?

Answers

Answer:

24 gallons

Step-by-step explanation:

"Mia has filled 3/4 (three quarters) of the fish tank with water.  How many gallons has she put in the tank to fill it 3/4 full?  Let g be the number of gallons.  Then:

(3/4)(32 gallons) = number of gallons Mia put into the tank:  24 gallons

On the main floor of the Kodak Hall at the Eastman Theater, the number of seats per row increases at a constant rate. Lucas counts 31 seats in row 3 and 37 seats in row 6. How many seats are there in row 20?


67


61


63



65

Answers

Answer:

67

Step-by-step explanation:

There are 65 seats in row 20, option D is correct.

Given that number of seats in row 3 are 31.

Number of seats in row 6 are 37

We need to find the rate of increase, we can calculate the difference in the number of seats between row 6 and row 3 and divide it by the number of rows in between:

Rate of increase = (Number of seats in row 6 - Number of seats in row 3) / (6 - 3)

Rate of increase = (37 - 31) / (6 - 3)

Rate of increase = 2

So, the number of seats increases by 2 seats per row.

To find the number of seats in row 20, we can use the rate of increase:

Number of seats in row 20 = Number of seats in row 3 + (Rate of increase × (20 - 3))

Number of seats in row 20 = 31 + (2× (20 - 3))

= 31 + (2 × 17)

= 31 + 34

= 65

Therefore, there are 65 seats in row 20.

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https://brainly.com/question/20820218

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Can you help me plz? I'll mark brainilest

Answers

the answer is amplitude

Pls help me!!!! Im stuck!!!

Answers

Answer:

has no solution.

Step-by-step explanation:

you can see that the two equations are almost identical except for the fact that one is multiplied by 7, but it isnt completely multiplied correctly so there would be no solutions.

Answer:

infinite solutions  

Step-by-step explanation:

you can solve this by the elimination method. take the rover a equation and multiply it by -7 and then combine the equations. when you do this, you can see that either side equals 0 which means that there are infinite solutions.

-7(y= 1.5x - 6) which equals the equation below

-7y= -10.5x-42 then combine the other equation

7y=10.5x+42 and that equals

0=0

PLEASE DUE IN 5 mins

Answers

Answer:

am i too late

Step-by-step explanation:

John is flying a kite at an angle of 65 degrees with the ground. If the kite's height is 70 feet
off the ground, how long is the string?

Answers

Answer:

77 feet

Step-by-step explanation:

Which shows the expression below simplified? (4.9 x 108) ÷ (7 x 105)

Answers

Hoping it helps...

Have a nice day!

for triangle FGH, angles F and G are known, as is the length of side h. Which method should be used to start solving triangle FGH?

- neither law can be used
- law of sines
- law of cosines
- both laws can be used

Answers

Answer:

Law of sines

Step-by-step explanation:

i took the test

The law of sines can be used to calculate the side h. Hence, option B is correct.

What is trigonometry?

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.

For triangle FGH, angles F and G are known, as is the length of side h. The sin angle is the ratio of the perpendicular to the hypotenuse we can calculate one side by using the sine angle.

Hence, Hence, option B is correct.

To know more about Trigonometry follow

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Please help! Factor out the GCF:

Answers

Answer:

35(2n + 1) A is correct

Multiply and you'll get

70n + 35

Step-by-step explanation:

35 is the greatest factor

70n / 35 = 2n

Answer:

35(2n + 1)

Step-by-step explanation:

Determine the area under the standard normal curve that lies to the left of
(a) Z= -1.05, (b) Z= -0.36, (c) Z= - 1.07, and (d) Z = 1.35.

Answers

Answer:

A

Step-by-step explanation:

convert 9/8 to a decimal long division

Answers

1.125 is the decimal form
1.125 decimal form hope this helped

What is the correct value of x

Answers

Answer:

45°

Step-by-step explanation:

The triangle is right isosceles.

It is right as the side is the diameter of the circle.

It is isosceles as two sides marked as equal.

Acute angles are same and equal to:

90°/2 = 45°

Correct option is 45°

Answer:

<M=90°[inscribed angle on diameter is 90°]

<N=<L=[base angle of isosceles triangle]

now

<M+<l+<N=180°[sum of interior angle of traingle]

[2x-5]×2=180-90

4x-10=90

x=100/4=25

x=25

Ellen had 380 legos, but she lost 57 of them, how many legos does she have now?

Answers

380-57= 323
Answer: 323 legos remain

Answer:

323 legos

Step-by-step explanation:

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