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harkovskaia [24]
2 years ago
11

in an after school program, students must choose to either play on the playground or read a book silently. On one cloudy day, 70

% of the students chose to play on the playground, and the rest chose read a book silently. 60% of the students who went to the playground are boys, and 20% who stayed inside to read a book are boys. If a student is randomly selected on this day, what is the probability that the student is a girl
Mathematics
1 answer:
a_sh-v [17]2 years ago
4 0
Play ground 70% (TOTAL)
books 30% (TOTAL)
60% of the 70% are boys
20% of the 30% are boys
Does that sound about right for a start?

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Allie has two cars- a truck and a sedan. Last week, she used 3 gallons of gas in the truck and 5 gallons of gas in the sedan and
gavmur [86]

Answer:

sedan = 26 miles/gallon

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Step-by-step explanation:

try to write the text in mathematical format as a system of equations

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first equation can be written as

t= (181-5s)/3

we can use it in the second equation and rewrite it as

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we use this value of s in the first equation

3t + 5*26=181      3t=181-130   t= 51/3 = 17 truck has an average of 17 miles/gallon

5 0
3 years ago
Hi are you able to solve it by using a step called exponential equations?
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Given the equation:

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since both bases are 6, we can equate both exponents to get the following equation:

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$4 a week? darn that's a scam

Step-by-step explanation:

It should take her two and a half weeks to get $10.

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