MATHEMATICS
MIDDLE SCHOOL

Answer:

Answer:

one is 14 the other is 23

Answer:

Answer:42

Step-by-step explanation:

MIDDLE SCHOOL

There are a lot of chickens and sheep in uncle Ben`s Farm, but he sadly forget how many he has now. Only thing he remembers, there are 48 heads and 134 legs. Can you tell Ben how many sheep does he have?

Let number of chickens = C

Number of sheep = 48 - C

2C + 4(48-C) = 134

2C + 192 - 4C = 134

-2C = -58

C = 29

Number of sheeps = 48 -29

= 19

Number of sheep = 48 - C

2C + 4(48-C) = 134

2C + 192 - 4C = 134

-2C = -58

C = 29

Number of sheeps = 48 -29

= 19

MIDDLE SCHOOL

What is the value of x in the equation 2x+3y=35 when y=6

Answer:

x = 17/2 or x = 8.5 decimal

Step-by-step explanation:

Solve for x:

2 x = 17

Divide both sides of 2 x = 17 by 2:

(2 x)/2 = 17/2

2/2 = 1:

Answer: x = 17/2 or x =8.5 decimal

MIDDLE SCHOOL

Which options could be the next step in simplifying this expression? (18 + 23) + 7 Choose exactly two answers that are correct

Were there choices?

The next step is to add inside the parenthesis

18+23=41

The next step is to add inside the parenthesis

18+23=41

HIGH SCHOOL

Solve for y.

y – (–19) = 25

a. –44

b. –6

c. 6

d. 44

Y - (-19) = 25

First, simplify your brackets. / Your problem should look like:

Second, subtract 19 from both sides. / Your problem should look like:

Third, subtract 25 - 19 to get 6. / Your problem should look like:

Answer: C) y = 6

First, simplify your brackets. / Your problem should look like:

Second, subtract 19 from both sides. / Your problem should look like:

Third, subtract 25 - 19 to get 6. / Your problem should look like:

Answer: C) y = 6

MIDDLE SCHOOL

Manuel created a factor tree and wrote the prime factorization of 60 shown below. a b c d

Answer:

He did not include 15 in the prime factorization.

Your answer would be 60 = 30 x 2 = 15 x 2 x 2 = 5 x 3 x 2 x 2= 5 x 3 x 2^2. I don't know the choices, but that is your answer.

MIDDLE SCHOOL

21m-49n factored using gcf

21 and 49 GCF is 7

So then you divide 7 out of both and get 7(3m-7n)

So then you divide 7 out of both and get 7(3m-7n)

MIDDLE SCHOOL

2x+8=x+15

Ajutatima va rog

2x + 8 =x + 15

2x(-x) + 8 (-8) = x (-x) + 15 (-8)

x = 7

x = 7 is your answer

2x(-x) + 8 (-8) = x (-x) + 15 (-8)

x = 7

x = 7 is your answer

2x + 8 = x + 15

2x - x = 15 - 8

x = 7

2x - x = 15 - 8

x = 7

MIDDLE SCHOOL

A fair dice is rolled. Work out the probability of getting a factor of 12.

Answer:

P (factors of 12) = 5/6

Step-by-step explanation:

The possibilities are 1,2,3,4,5,6

Factors of 12 are 1,2,3,4,6,12

So out of the possibilities rolled

1,2,3,4,6 are factors of 12 (5 of the 6)

P (factors of 12) = 5/6

Answer:

5/6

Step-by-step explanation:

well, 1,2,3,4 and 6 are factors of 12.

and a fair sided dice has 6 sides.

so 5 out of those 6 sides are factors of 12.

The only on that is not is 5

HIGH SCHOOL

There is a large bag with marbles in it. there are 23 red ones, 16 black ones, 5 blue ones, 17 orange ones, 4 white ones, and 15 purple ones. juanita reaches in without looking and selects one marble. what is the probability that it is purple? 1 15 1 80 7 3 16

It would be 30/160. YOU'RE WELCOME :)

23 red, 16 black, 5 blue, 17 orange, 4 white, 15 purple.....

for a total of : 80 marbles

the probability of picking a purple one is 15/80 which reduces to 3/16

for a total of : 80 marbles

the probability of picking a purple one is 15/80 which reduces to 3/16