MATHEMATICS
COLLEGE

Answer:

Hello from MrBillDoesMath!

Answer:

3/12 (aka 1/4)

Discussion:

2/3 + 7/12 = 8/12 + 7/12 => as 2/3 = (2*4)/(3*4) = 8/12

= 15/12

= 1 + 3/12

Thank you,

MrB

HIGH SCHOOL

Which shows a correct order to solve this story problem? Allie, Serena, and Mikala went to the movies. They spent a total of $30.90 for their movie tickets and $8.50 each for popcorn and drinks. The total tax for the tickets and snacks was $3.96. They split all the costs evenly. How much did each girl pay? A. Step 1: Add $30.90 and $8.50. Step 2: Add the tax to that amount. Step 3: Divide by 3. B. Step 1: Calculate the price of 1 ticket. Step 2: Divide the total tax by 3. Step 3: Add the amounts from Steps 1 and 2 to $8.50. C. Step 1: Add the price of the tickets and the amount spent on food. Step 2: Add the amount of the tax. Step 3: Divide that total by 2.

30.90 + 8.50 + 3.96 = 43.36 (total cost)

If they are all splitting it evenly then divide by total ammount of people

43.36 / 3 = 14.45 each

The answer is A

If they are all splitting it evenly then divide by total ammount of people

43.36 / 3 = 14.45 each

The answer is A

MIDDLE SCHOOL

Sara is 11 years old today. Represent a, sara's age in years

Sara = a years old

a = 11

Because Sara is 11 years old.

Answer: a = 11

a = 11

Because Sara is 11 years old.

Answer: a = 11

MIDDLE SCHOOL

100 POINTS! I REALLY NEED TO GET THIS CORRECT! Factor the quadratic trinomial. x^2−3x−18

Hint: To use type an exponent, use the caret symbol (^) by using the keys shift + 6

Answer:

By inspection you need 2 numbers that multiply together to -18 and sum to -3. These numbers are -6 and 3. Therefore we have:

x2−3x−18=(x−6)(x+3)

HIGH SCHOOL

A total of 517 tickets were sold for the school play. They were either adult tickets or student tickets. There were 67 more student tickets sold than adult tickets. How many adult tickets were sold?

Answer:

My guess is 450.

Step-by-step explanation: