Which is bigger:
3/8 or 0.38.
Can you tell me how to work it out?please!

Answers

Answer 1

Answer: You do 3 x 8 / 100 to work out 3/8 as a decimal. So its 0.24. 0.38 is bigger

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A-b=4 and a+b=6 find a²+b² and ab

Answers

Answer:

...a-b=4

a+b=6

→2a=10

→a=10/2 =5

we calculate b:

a-b=4

5-b=4

-b=4-5

b=1

→a=5; b=1

a²+b² = 5²+1² = 25+1 = 26

ab =5*1 = 5

Which fraction is not equivalent to 16/24 A. 2/3 B. 5/8 C. 32/48 D. 4/6

Answers

b) 5/8
because:
2/3 x 8 = 16/24
32/48 divided by 2 = 16/24
4/6 x 4 = 16/24
so b) 5/8 it is

5/8 because
If you divide 16 by 8 then you get 2 and if you divide 24 by 8 you get 3 this equals=2/3
32/48- If you multiply 16 by 2 you get 32, if you multiply 24 by 2 you get 48 which gives you an answer to 32/48
4/6- If you divide 16 by 4 you get an answer of 4, if you divide 24 by 4 you get an answer of 6, which gives you an answer of 4/6

How do you factor 3x^2-7x-2

Answers

3x^2-7x-2

doesn't factor

You can not factor this

I hope that's help !

In a game for 24 groups, the average number of children was 16. When one more group of children was formed to join in the game, the average number of children became 18. The number of boys to girls who had just joined in the game was in the ratio 5:6. If there were 220 boys at first, how many more boys than girls were in the end?

Answers

Answer:

50 boys

Step-by-step explanation:

The number of groups = 24

The average number of children = 16

The new average number of children when one group is added = 18

The ratio of boys to girls in the group that just joined = 5:6

The initial number of boys = 220

Let the initial number of children

The initial total number of children = 24 × 16 = 384

The initial number of girls = 384 - 220 = 164

The final number of children = 25 × 18 = 450

The number of children in the group that joined in the game = 450 - 384 = 66

The ratio of boys to girls in the group = 5:6

Therefore, we get;

The number of boys = 66 × 5/11 = 30

The number of girls = 66 - 30 = 36

The number of boys at the end = 220 + 30 = 250

The number of girls at the end = 164 + 36 = 200

The number of more boys than girls at the end = 250 - 200 = 50

The number of more boys than girls at the end = 50 boys

What are the square roots of 81? I

Answers

Answer:

Step-by-step explanation:

Square root is to multiply same number to get high number.

Example: square root of 81.

9 x 9 = 81

Which of the following functions best represents the graph? A. f(x) = x3 + 2x2 − 4x − 8

B. f(x) = x3 + 4x2 − x − 4

C. f(x) = x3 + x2 − 9x − 9

D. f(x) = x3 + 3x2 − 3x − 9