Mariah spent $9.50 on 9 pounds of limes and pears. Limes cost $0.50 per pound and pears cost $1.50 per pound. Let l be the numbe
r of pounds of limes and let p be the number of pounds of pears. Which system of linear equations models the scenario?
l + p = 9.5 and 1.5l + 0.5p = 9
l + p = 9 and 0.5l + 1.5p = 9.5
l = p + 9 and 9.5l + 0.5p = 0.5
l + p = 9.5 and 1.5l + 0.5p = 9
l + p = 9 and 0.5l + 1.5p = 9.5
l = p + 9 and 9.5l + 0.5p = 0.5
1 answer:
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Answer:
35.9 grams
Step-by-step explanation:
We use the formula:
Where
q is heat released
m is mass
C_p is the constant 2.44
ΔT is change in temperature
We put the info in the formula and solve for m (mass):
The mass of ethanol is 35.9 grams