3x + y = - 21

x+y=-5

solving systems of equations by substitution

The new horizon space probe passed the moon 8 hours and 35 mins after lunch. Write this number as a fraction and reduce (hint. use 60 as your denominator, not 100 because there 60 mins in one hour)

A retail store intends to ship out 27,892 brown bedspreads and six times as many green bedspreads. If each box contains 114 bedspreads of either color, how many full boxes of bedspreads can be packed, and how many bedspreads are left over for the

Four less than half a number is 17? Find the number

X is no more than b and no less than a" may translate to a less then or equal to x less then or equal b. True or false

If mary's home is worth $78,900 what is her coverage for landscaping and trees if insurance covers 5 percent?

Carson's wheelbarrow can hold 345 pounds. If he has 121 pounds or rock in the wheelbarrow, what number of pounds, p, can he put in the wheelbarrow without going over the weight limit?

Carmen recovered 2 gold bars that were stolen from a safe. the first bar weighed 2 2/5 pounds. the second bar weighed 1 2/3 times as much as the first bar. find out how much gold was recovered.

How to do this problem 3 (4x-2) equals 12x plus 1

St. bernard's birthweights at a local hospital have a normal distribution with a mean of 110 oz and a standard deviation of 15 oz. the proportion of st. bernard puppies with birthweights between 125 oz and 140 oz is:

What is - 16 + (-28) =