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Tatiana [17]
3 years ago
9

In a group of 30 children, 80%can’t swim how many children can’t swim

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

24

Step-by-step explanation:

Allushta [10]3 years ago
3 0
80% is 0.8
30x0.8 is 24
So 24 cant swim
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while swimming in the pool, you attempt to swim the whole length of the pool without getting a breath. you are able to do it 3 o
Luba_88 [7]

Answer:

30 out of 50 times.

Step-by-step explanation:

1 attempt represents 3 out of 5 times.

10 attempts equals 1 attempt x 10.

Multiply numbers 3 and 5 by 10.

3 x 10 = 30

5 x 10 = 50.

Therefore, your solution is 30 / 50 times.

6 0
4 years ago
There are
Andrew [12]

Answer:

40%

Step-by-step explanation:

If there are 1200 students in the school and 720 of them are boys that means 480 of them are girls.

I like to do cross multiply and divide so the equation for that would be  480/120 = ?/100

if you cross and multiply 480 by 100 you will get 48000 then if you divide that by 1200 you will get 40 as your missing value.

Im basically just saying 480/1200 = 40%

If you need further help there are plenty of you tube videos on how to cross  multiply and divide

Hope this helps

- Please mark brainliest :)

8 0
3 years ago
— 2y – Зу +8 = 8 — 5у – 12
jasenka [17]

Answer:

No Solution.

Step-by-step explanation:

Equality equation:

— 2y – Зу +8 = 8 — 5у – 12  (Given)

-5y + 8 = -4 - 5y (distributive property of equality)

-5y = -12 - 5y (subtraction property of equality)

= -12 (addition property of equality)

when you add 5y on both sides it cancels the 5y out, it's no solution.

<em><u>Ace-The Kid Laroi</u></em>

6 0
3 years ago
Simplify 3^2 + 1 * 2
inessss [21]

Answer:

3×3+1×2

9+2

11 is the answer

6 0
3 years ago
Read 2 more answers
The hypotenuse of a 90-45-45 triangle is 20√2. What is the short leg and the long leg&gt;
stepan [7]

Answer:

Both legs would be 20

Step-by-step explanation:
In the image below, it shows the relationship between the legs and the hypotenuse in every 45 45 90 triangle. If we know that the hypotenuse is 20, then the 2 legs are both 20.

I am slightly confused with the problem since they asked for the "short" leg and the "long" leg. Both legs should be the same length because a 45 45 90 triangle is isosceles, with the two legs being the same length.

6 0
2 years ago
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