Answer: -14 degrees F
Explanation:
Draw a vertical number line. Plot -3 on that line. Then move down 11 units to arrive at -14. Think of it like being in basement level 3 of a building, going down 11 floors, to get to basement level 14.
This is a question of direct proportionality. The mass of hemoglobin is expected to increase with increase in volume of the blood.
Therefore;
10 cm^3 of blood ---------- 1.2 g of hemoglobin
39 cm^3 of blood ---------- x g of hemoglobin
The,
x = (39*1.2)/10 = 4.68 g of hemoglobin.
That is, 39 cm^3 of blood contains 4.68 grams of hemoglobin.
move the 3 to the 7 side. it will become negative.
9x-5x=7-3
4x=4
x=1
11.50-4.75= 6.75
6.74 / 3 = 2.25
Jessica paid $2.25 to rent each movie.
Hope this was helpful.
2x-4=5x+6-100
2x-4=5x-94
2x-5x=-94+4
2x-5x=-90
-3x=-90
X=30