Solve the system of equations by the substitution method.

x+y=4

y=-3x

If dab=125 what is the measure of cba justify your reasoning

What are the factors of y3-4y? Select all that apply. A. y B. y2 C. y-4 D. y-2 E. y+2 F. y+4

A closet contains n pairs of shoes. (a) if 2r shoes are chosen at random (2r < n), what is the probability that there will be no matching pair in the sample?

Find the prime factorization and least common multiple of 9 and 10

Arjun can type 40 words per minute. Dalia can type 55 words per minute. If Arjun and Dalia each type for 30 minutes, about how many more words will Dalia type?

An account earns annual simple interest. find the balance of the account. $2,000 at 9% for 6 months

Give a description of the rules for the order of operations in ur own words

a rental car costs $175 per week, plus $0.10 per mile. Write an equation to represent the relationship between the number of miles X and the total cost in dollars y for a three-week rental

Determine whether the relation is a function. (7, 4), (5, - 1), (3, - 8), (1, - 5), (3, 6)

To convert a mass of 2.93 pounds to ounces, what ratio should you multiply by?