Answer: x= -11
Step-by-step explanation: Substitute y for -9, and move 2 to the other side, which would be -9-2=-11. So x=-11
Answer:
- 3 3/4 lb salt
- 2 1/3 L water
Step-by-step explanation:
Each group will get 1/8 of the total amount:
salt: (30 lb)/8 = 3 6/8 lb = 3 3/4 lb
water: (20 L)/8 = 2 4/8 L = 2 1/2 L
Each group will get 3 3/4 pounds of salt and 2 1/2 liters of water.
Answer:
y = 2x + b (the second answer choice)
Step-by-step explanation:
The slope-intercept form is y = mx + b (the m representing slope and the b representing y-intercept). Put the points in ratio form as a fraction and subtract the ratio with the smallest numbers from the ratio with the largest ratio (5/1 - 1/-1) to get 4/2. When simplified, it becomes 2/1, so the slope is 2. Using the slope found previously, subtract 1 from the x of (1, 5) and 2 from the y of (1, 5) to get the y-intercept. The resulting point is (0, 3), so the y-intercept is 3. Replace the m with the found slope (2) and b with the found y-intercept (3) to end up with y = 2x + 3.
You could expect to land on red 120 times because 300*.4=120
Monday, 2.5×2.2=5.50
Tues, 1.2×2.2=2.64
5.50+2.64=8.14
He spent $8.14 total
