Answer:
I am sorry just today we start this lesson
Answer:
Step-by-step explanation:
1 batch= 1 and 1/3 cups
2 batches= 2 and 2/3 cups
3 batches= 4 cups
4 batches= 5 and 1/3 cups
Answer:
$5
Explanation:
Since Jerry walked the dog from 6:40am to 7:30am, the total minutes that he walked the dog was 50 minutes. Also a note, an hour is 60 minutes.
Since he is paid at a rate of $6 per 60 minutes, we can make a proportion.
660=x50
From here, you have to solve for x. So cross multiply, and then simplify.
60x=50⋅6
60x60=50⋅6/60
60x60=50⋅6/60
x=5⋅6/6
x=5
So the answer is $5.
60 min = 1 hr
3/4 * 60 = mph (miles per hour)
3/4 * 60 = 45
The speed of the car in mph (miles per hour)
will be 45 mph
Answer = 45mph
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Answer:
The mass of the radioactive sample after 40 minutes is 12.8 g.
Step-by-step explanation:
The mass of the sample can be found by using the exponential decay equation:

Where:
N(t): is the amount of the sample at time t =?
N₀: is the initial quantity of the sample = 120 g
t = 40 min
λ: is the decay constant = 0.056 min⁻¹
Hence, the mass of the sample after 40 min is:

Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.
I hope it helps you!