MATHEMATICS
HIGH SCHOOL

PLZ I NEED HELP IMEDIATELY

Answer: − 6.25 n + 52 hope this helps

HIGH SCHOOL

A super deadly train of bacteria is causing the zombie population to double every 2 days. currently, there are 25 zombies. after how many days will there be 25,600 zombies

25+25(2)+50(2)+100(2)+200(2)+400(2)+800(2)+1,600(2)+3,200(2)+6,400(2)=25,575 so after 18 days there will be 25,575 zombies :)

COLLEGE

A(3x-8)=b-18x

what is a value?

what is b value?

We have that

a*(3x-8)=b-18x

3ax-8a=18x+b

The only way for this to happen (non-trivially) is if the coefficients of x are equal, and the constant terms are equal

so

3ax=18x-----> 3a=18--------> a=6

-8a=b---------> b=-8*6-------> b=-48

the answer is

a=6

b=-48

a*(3x-8)=b-18x

3ax-8a=18x+b

The only way for this to happen (non-trivially) is if the coefficients of x are equal, and the constant terms are equal

so

3ax=18x-----> 3a=18--------> a=6

-8a=b---------> b=-8*6-------> b=-48

the answer is

a=6

b=-48

COLLEGE

17.2 Multiplied by 12.86

17.2 multiplied by 12.86 is 221.192.

Answer:

221.192

Step-by-step explanation:

12.86 221.192

17.2

x____

2572

90020

128600

+______

221,192

MIDDLE SCHOOL

Is the square root of 40 a rational number or an irrational number?

The square root of *40* is an irrational number.

MIDDLE SCHOOL

Simplify.

(-56xy) divided by (-8)

The answer is 7xy , all you had to do was divide the number and then add the like terms

MIDDLE SCHOOL

Evaluate.

17 + 330 • 20 ÷ ÷ 2 – 14

Answer:

36

Step-by-step explanation:

Simplify the following:

17 + 330×20/10^2×1/2 - 14

20/10^2×1/2 = 20/(10^2×2):

17 + 330×20/(10^2×2) - 14

330×20/(10^2×2) = (330×20)/(10^2×2):

17 + (330×20)/(10^2×2) - 14

2 | 1 | 6 | 5

| 3 | 3 | 0

- | 2 | |

| 1 | 3 |

- | 1 | 2 |

| | 1 | 0

| - | 1 | 0

| | | 0:

17 + (165×20)/10^2 - 14

| 1 | 0

× | 1 | 0

| 0 | 0

1 | 0 | 0

1 | 0 | 0:

17 + (165×20)/100 - 14

20/100 = 20/(20×5) = 1/5:

17 + 165/5 - 14

The gcd of 165 and 5 is 5, so 165/5 = (5×33)/(5×1) = 5/5×33 = 33:

17 + 33 - 14

| 1 |

| 3 | 3

+ | 1 | 7

| 5 | 0:

50 - 14

| 4 | 10

| 5 | 0

- | 1 | 4

| 3 | 6:

Answer: 36

HIGH SCHOOL

X+3y=3

2x-4y=6

solve the equations

Subtract the second equation from double the first equation:

2x+6y-2x-(-4y)=0

10y=0

Therefore, y=0. Substituting this into the first equation, we see that:

x+3(0)=3

x=3

Therefore, x=3. The solution to this system is x=3, y=0, or (3, 0).

2x+6y-2x-(-4y)=0

10y=0

Therefore, y=0. Substituting this into the first equation, we see that:

x+3(0)=3

x=3

Therefore, x=3. The solution to this system is x=3, y=0, or (3, 0).

So divide the second equation by 2

x-2y=3

the first equation is

x+3y=3

subsitute

3=3 so therefor

x-2y=x+3y

subtract x from both sides

-2y=3y

add 2y to both sides

0=5y

ofviously y=0 so subsitute

x-2y=3

x-(2)0=3

x-0=3

x=3

x=3

y=0

x-2y=3

the first equation is

x+3y=3

subsitute

3=3 so therefor

x-2y=x+3y

subtract x from both sides

-2y=3y

add 2y to both sides

0=5y

ofviously y=0 so subsitute

x-2y=3

x-(2)0=3

x-0=3

x=3

x=3

y=0

MIDDLE SCHOOL

Caroline makes $3 an hour pet-sitting for the neighbors. Last summer she worked 23 hours. How much money did Caroline earn?

69 dollars is the answer to the question

If you need an explanation then the reason why it's $69 is because you take the 3 dollars and multiply it by 23 hours and you get 69.

MIDDLE SCHOOL

What is 5! Equals to

Answer:

Step-by-step explanation: 5 times 4 then that times 3 then that times 2.

120