Explain how to do matrix problems

One of two supplementary angles is five times the measure of the other. find the measure of the smaller angles.

X+2y=-9 5x+6y=-13 what is the answer?

Lilla read 1/5 of her book last week. This week she read 3 times as much as she read last week. B. There are 75 pages in Lilla's book. How many pages does she have lest to read?

At a garage sale, all of the prices of the items sold were different. If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the

The three angles of a triangle measure 5x - 30, x + 10, and 6x - 40. What is the measure of the smallest angle in degrees?

If m^2 + n^2 = 18 and mn=7, what is (m-n) ^2

Add - 6.5b+11 and 3.3b-2

Order fromleadt to greatests 2.07,2 7/10, 2.67, - 2.67

Kailey wants to buy 4 pencils and 3 notebooks. witch expression shows how to find the total cost of 4 pencils and 3 notebooks. a. 3 ($0.50) + 4 ($2.25) b. 4 ($0.50) - 3 ($2.25) c. 4 ($0.50) + 3 ($2.25) d. 4 ($0.50) X 3 ($2.25)

If 48 men have ration for 16 days how long will the food last if a reinforcement of 16 men arrived