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STALIN [3.7K]
2 years ago
10

The ratio of boys to girls in a class is 6:4. If there is a total of 30 students in the class, how many are boys?

Mathematics
2 answers:
Gekata [30.6K]2 years ago
5 0

Answer:

There would be 3 boys in the class.

Step-by-step explanation:

First you add 6+4=10

Then you divide 30/10=3

And thats the ratio for how many boys are in the class.

OleMash [197]2 years ago
3 0

Answer:

x=3

6x=18 boys

4x=12 girls

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Janie and Jasmine are playing three games at an arcade. Each of the games requires either 2, 3, or 4 tokens. The girls plan to p
Brrunno [24]

Answer:

m+2n+2p=16 tokens or m+2(n+p)= 16 tokens

Step-by-step explanation:

First, we must understand how many tokens they have.

Janie played the 3-token game four times, so she used 12 tokens  (3n x 4 = 12). Jasmine played the 4-token game five times, so she used 20 tokens (4p x 5 = 20).

Added up, the girls have 32 tokens (12+20 = 32 tokens (t)).

In order to play a round of the three games, 9 tokens are required (m+n+p = 9 / 2+3+4 = 9) by each girl. (32t-18t=14) 14 tokens are left after taking a ride in every game each. 14 left divided by 2 will leave 7 more tokens for each girl. You can split these 7 tokens into an n+p = 7 tokens

Thus,

Each girl can ride as follows:

m+2n+2p=16 tokens or m+2(n+p)= 16 tokens

4 0
3 years ago
Jan 18 Spiral Review<br> Find the surface area of the following complex shapes.
zepelin [54]

Answer:

320 in.²

Step-by-step explanation:

Let's think of the shape as a normal rectangle with a height of 16 inches. Now all we need is the length. If you look at the right corner, it looks like a piece has been cut out. Since that piece has the same length and height of 8 inches, it is a square. This tells us the missing length of the entire length of the rectangle. Now the length of the rectangle is 16 inches + 8 inches, which is 24 inches.

The total area of the rectangle is 16 × 24, which is 384.

Then from the total area, we just need to subtract the area of the cut-out part. The area of the cut-out square is 8 × 8, which is 64.

384 - 64 = 320

The total surface area of the following complex shape is 320 in.²

4 0
2 years ago
What is 12 14/15 written as a decimal
Marina86 [1]
12.9 i think, not sure. try it though
3 0
3 years ago
How many different 5-digit whole
Lerok [7]

Answer:

120

Step-by-step explanation:

so

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this 5 interrogative marks are our 5 digit number

for the first place you have 5 choices(2, 3, 4, 5, 6)

for the second:4

for the third:3

for the fourth:2

and for the fifth:1

you multiply this choices

5×4×3×2=120

4 0
2 years ago
I need help please please please please help meeeeer
12345 [234]
This is the awnser to the problem
5 0
3 years ago
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