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Sveta_85 [38]
3 years ago
10

Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they w

eighed 3.8 pounds, and cost $5.84. How many pounds of apples and how many pounds of bananas did Troy buy?
Mathematics
2 answers:
jolli1 [7]3 years ago
5 0
Answer choices xx? 
<span>]to find the number of bananas you have to take the total 3.8 and subtract apples 3.8-a</span>
zhenek [66]3 years ago
5 0

Answer:

1.5 pounds of apples; 2.3 pounds of bananas

Step-by-step explanation:

x=amount of apples bought. (in pounds)

y=amount of bananas boutht (in pounds)

We can suggest this system of equations:

x+y=3.8

1.9x+0.75y=5.84

We can solve this system of euqtions by substitution method.

x+y=3.8        ⇒ y=3.8-x

1.9x+0.75(3.8-x)=5.84

1.9x+2.85-0.75x=5.85

1.15x=5.84-2.85

1.15x=2.99

x=2.99/1.15

x=2.6

y=3.8-x

y=3.8-2.6

y= 1.2

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HELPP HELP. It’s about slope!!!! Explanation needed
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<em> x = -3</em>

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The mean age of 9 women in an office is 27 years old. The mean age of 7 men in an office is 25 years old. What is the mean age (
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Step-by-step explanation:

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The mean age of 9 women = 27 years old

The mean age of 7 men = 25 years old

Question asked:

What is the mean age (nearest year) of all the people in the office?

solution:

By using, mean = sum of observations divided by number of entities

The mean age of 9 women = 27 years old

\frac{sum of ages}{number of women} = 27

Sum  of ages of women = 27 \times9 = 243\\ years

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The mean age of all the people in the office = Total sum of ages of men and women in the office divided by Total number of people in the office

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Therefore,  the mean age (nearest year) of all the people in the office = 26 years

6 0
3 years ago
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