Question

Someone help with this pls?

Answer 1

2 a) The amount of calcium in Ben's glass is 0.084 g

   b) The capacity of the carton is 1500 mL

3 a) The weight of the 45 cm length of wire is 19.125 g

Calculating Amount

From the question, we are to calculate the amount of calcium in Ben's glass

From the given information,

100 mL of a certain brand of oat milk contains 0.12g of calcium.

Now, we are to determine the amount of calcium in 70 mL glass of oat milk

If 100 mL of oat milk contains 0.12g of calcium

Then,

70 mL glass of oat milk will contain (70 × 0.12)/100 g of calcium

(70 × 0.12)/100 = 0.084 g

Hence, the amount of calcium in Ben's glass is 0.084 g

b) We are to work out the capacity of the carton in liters

The carton of the oat milk contains 1.8g of calcium

Let the capacity of the carton be x mL

If 100 mL of oat milk contains 0.12g of calcium

Then,

x mL of oat milk will contain 1.8 g of calcium

x = (1.8 × 100)/0.12

x = 180/0.12

x = 1500 mL

Hence, the capacity of the carton is 1500 mL

c)

From the given information, we have that

1.2 m of copper wire weighs 51 g

We are to calculate the weight of a 45 cm length of wire

First,

Convert 1.2 m to cm

1.2 m = 1.2 × 100 cm = 120 cm

Now, if 120 cm of copper wire weighs 51 g

Then,

45 cm of copper wire will weigh (45 × 51)/ 120

(45 × 51)/ 120 = 19.125 g

Hence, the weight of the 45 cm length of wire is 19.125 g

Learn more on Calculating Amount here: brainly.com/question/13247031

#SPJ1