Angelica solves the system { x + y = - 3.

x - y = 1 } and finds the solution (1, 3). Use substitution to explain whether Angelica's solution is correct.

In how many ways can 9 hearts be chosen if 12 cards are chosen from a well-shuffled deck of 52 playing cards? a) 715 b) 220 c) 108 d) 6,534,385 e) 117 f) None of the above.

How to use the distributive property

You have an 8 pint mixture of paint that is made up of equal amounts of yellow paint and blue paint. To create a certain shade of green, you need a paint mixture that is 80% yellow.

Jace has consumed 1,500 calories so far today. He has also burned off 400 calories at the gym. He would like to keep his daily calorie total to 1,900 calories per day.

Which number should each side of the equation 4/5 x=8 be multiplied by to produce the equivalent equation of x = 10? A.-4/5 B. 1/5 C. 5/4 D. 5

In a game an octahedral dice (8 sides) numbered 1 to 8 lands on 8 18 times, and on 1 to 7 42 times. what fraction of times was the score less than 8

Find the quotient. 715 / 9 =

1. a model rocket is fired vertically into the air at 320 ft/s. The expression - 16t^2+320t gives the rocket's height after t seconds. factor this expression Factor each expression or state if it cannot be factored. 1. 13q^4+2p^2 2. 14n^3+7n+7n^2 3.

Yolanda's club requires that 60% of the members be present for any vote. If at least 30 members must be present to have a vote, how many members does the club currently have?

Give an example of a positive temperature and a negative temperature that have a difference of 5°F.