Find x+y, if12x+13y=29and 13x+12y=21

The system of equations 3*-6y=20 and 2*-4y=3

Any two numbers with a sum of 1 are called reciprocals

80% of the 6th graders at Harrison Middle School are going on a field trip to the museum there are 685 6th graders how many students are going on the field trip?

A cut piece of ribbon is 21 inches long. The piece of ribbon is 15% of the original length of the ribbon. How long was the original length of ribbon?

2/3+y-4/5=1/3 by the way 2/3,4/5, and 1/3 are fractions

At a basketball game, a vender sold a combined total of 109 sodas and hot dogs. The number of sodas sold was 57 more than the number of hot dogs sold. Find the number of sodas sold and the number of hot dogs sold

What are the degrees a trapezoid has?

The temperature fell 12°F from 46°Fto 34°F in 10 hours. how much would the temperature fall over 15 hours if the pattern continued

Simplify 12 + 3 (2x - 3) + 4. A. 6x - 3 B. 6x + 7 C. 6x + 13

Find the slope of the line that passes through (-1,-4) and (3, 5).