Answer:
2n + 5
Step-by-step explanation:
You are adding 5 to the multiplication of 2 and a number.
Answer:
8-3=8-3
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
A proportional equation is of the form
y = kx where k is the constant of proportionality
y = 150x is proportional
Answer:
The speed of the boat in still water is 18 mph.
The speed of the current is 2 mph
Step-by-step explanation:
Let x represent the speed of the boat in still water.
Let y represent the speed of the current.
When the boat goes against the current, the speed is 16 mph. Assuming it traveled against the current while going upstream, its total speed would be (x - y) mph. It means that
x - y = 16 (equation 1)
Going downstream, the boat averages 20 mph. Assuming it traveled with the current, its total speed would be (x + y) mph. It means that
x + y = 20 (equation 2)
Adding both equations, it becomes
2x = 36
x = 36/2
x = 18 mph
Substituting x = 18 into equation 1, it becomes
18 - y = 16
y = 18 - 16
y = 2 mph
Answer:
500 g flour = 600 g
6*1.2 g salt = 7.2 g
12*1.2 g yeast = 14.4 g
30 mL oil = 36 mL
360 mL water = 432 mL
Step-by-step explanation:
10 bread rolls requires 500g of flour.
Eli uses 600g of flour which is 1.2 times the amount needed for 10 bread rolls.
This means that 1.2 * 10 bread rolls are made which is 12 bread rolls.
Multiply the remaining ingredients by 1.2:
500 g flour = 600 g
6*1.2 g salt = 7.2 g
12*1.2 g yeast = 14.4 g
30 mL oil = 36 mL
360 mL water = 432 mL