− 5 2 −x+(− 10 9 )minus, start fraction, 2, divided by, 5, end fraction, minus, x, plus, left parenthesis, minus, start fraction, 9, divided by, 10, end fraction, right parenthesis where x = \dfrac{4}{5}x= 5 4 x, equals, start fraction, 4, divided by, 5, end fraction.

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants