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S_A_V [24]
3 years ago
5

Jenny johnston bought some apples for 79 cents per pound and twice as many pounds of bananas for 39 cents per pound. if her tota

l bill was $7.58, how many pounds of bananas did she buy?
Mathematics
1 answer:
slavikrds [6]3 years ago
6 0
This is an algebra problem. We let x be the variable for the number of pounds of apples bought, and y be the number of pounds of bananas bought. From the descriptions, the formulas that we can formulate are:

y = 2x  --> eqn 1
0.79x + 0.39y = 7.58 --> eqn 2

Substituting eqn 1 to eqn 2:
0.79x + 0.39(2x) = 7.58
Solving for x,
x = 4.828 pounds of apples
y = 2x = 2(4.828) = <em>9.656 pounds of bananas bought</em>
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Answer:

ABCDEFG = 3211000

Step-by-step explanation:

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2 years ago
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xeze [42]
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3 years ago
Read 2 more answers
which method for comparing fractions were you unaware of before reading? use it to compare 2/3 and 3/4​
wolverine [178]

Good morning

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Answer:

2/3 < 3/4​

___________________

Step-by-step explanation:

2/3 = (2*4)/(3*4)=8/12

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Since 9/12>8/12 then 3/4>2/3

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6 0
3 years ago
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dangina [55]

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3 years ago
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Alexandra [31]

Answer:

Step-by-step explanation:

since there is no given formula I'm guessing that's what we want to find?

use the dist. = rate * time   formula for this kind of problem

or  d = r*t     ( this looks like the word  "dirt" to me so I call this the dirt formula partly b/c it's dirt simple, and it's generally about moving across some give dist. of dirt  :P )  

so Jean's rate is 64 MPH

her total distance is 448 miles  

rearrange the  d = rt  formula so that you are solving for the thing you don't know.. yet....   t (time)  for this case

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d/r = t

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7 0
3 years ago
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