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Delvig [45]
3 years ago
7

What's the additive identity of 9

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0
9? Thats what it is,
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What is (4×3)÷2+1+2×6
Olenka [21]

Answer:

(4×3)÷2+1+2×6

=12÷2+1+2×6

=6+1+2×6

=6+1+12

=19

is the answer

3 0
3 years ago
Read 2 more answers
A study of parents of kindergarteners included 349 parents who were chosen at
miskamm [114]

Answer:

47% is the statistic and 31% is the parameter.

Step-by-step explanation:

A parameter is a quantity of a variable representing certain characteristic of a population.

A statistic is a quantity of a variable representing certain characteristic of a sample.

The sample of parents of kindergartners selected is, <em>n</em> = 345.

The School records show that only 31% of parents of kindergartners sent their children to pre-kindergarten.

That is the population proportion is, <em>p</em> = 0.31.

This is the parameter value.

Of the 349 parents, 47% said they sent their children to pre-kindergarten.

That is the sample proportion is, \hat p = 0.47.

This is the statistic value.

Thus, the correct option is:

47% is the statistic and 31% is the parameter.

7 0
3 years ago
One number is nine more than a second number. Four times the first is 6 less than 2 times the second. Find the numbers.
Masteriza [31]

9514 1404 393

Answer:

  -12, -21

Step-by-step explanation:

Let x represent the first number. Then the second is x-9. The other relation is ...

  4x = 2(x-9) -6

  2x = -24 . . . . . subtract 2x, simplify

  x = -12

  x-9 = -21

The first number is -12; the second number is -21.

6 0
3 years ago
32.8g of sugar is needed to make 4 cakes. How much sugar is needed for 7 cakes?
allochka39001 [22]

Answer:

57.4g

Step-by-step explanation:

32.8g of sugar is needed to make 4 cakes. How much sugar is needed for 7 cakes?

From the above questions, we know that:

4 cakes = 32.8g

7 cakes = x g

Cross Multiply

4 × xg = 7 × 32.8g

x = 7 × 32.8g/4

x = 57.4 g

Therefore, 57.4g is needed for 7 cakes

6 0
3 years ago
What is 2/6 in simplest form? Find the greatest common factor of 2 and 6 and divide by that number. *
nalin [4]

Answer:

\frac{1}{3}

Step-by-step explanation:

2 = 2 × 1

6 = 2 × 3

GCF = 2

\frac{2 /2 }{6/2} =\frac{1}{3}

3 0
2 years ago
Read 2 more answers
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