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Dimas [21]
3 years ago
12

Rebecca but one goldfish for $32 and one starfish for $12 . She spends the rest of her money on guppy fish. She starts with $80.

Each guppy costs $6. Right and inequality for the number of guppies she can purchase.
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
3 0
She can buy 5more guppies because she spent $50 in total because 32+12+6= 50 dollars.So she has $30 dollars left $6 per guppy × 5 guppies = $30 so she can buy 5 more
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A bake shop uses 1 1/3 cup of<br> milk for each batch of<br> cupcakes.
Travka [436]

Answer:

Step-by-step explanation:

1 batch=       1 and 1/3 cups

2 batches=  2 and 2/3 cups

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8 0
2 years ago
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Jerry walked a dog from 6:40 am to 7:30 pm one day. If he was paid at the rate of 6$ per hour, how much did he earn that day?
Tom [10]

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

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   x=5⋅6/6

   x=5

So the answer is $5.

3 0
3 years ago
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A car traveled 3⁄4 mile in one minute at constant speed. What was the speed of the car in miles per hour?
Vanyuwa [196]
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

Thank you for posting your question on Brainly!

We hope we can help you in the future!

As always I hope you have a great day!
8 0
3 years ago
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A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac
sammy [17]

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:

N_{t} = N_{0}e^{-\lambda t}

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:

N_{t} = N_{0}e^{-\lambda t} = 120g*e^{-0.056min^{-1}*40 min} = 12.8 g

     

Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.

I hope it helps you!

5 0
3 years ago
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