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Fantom [35]
2 years ago
4

A grocery store sells a bag of 7 oranges for $4.48. If Khloe spent $6.40 on oranges, how many did she buy?

Mathematics
2 answers:
cestrela7 [59]2 years ago
6 0
Answer: 10 oranges
$4.48 divide by 7 = $0.46
Each orange costs $0.64
$0.46 times 10 = $6.40
koban [17]2 years ago
5 0
4.48\7=.64
6.40/.64=10
The answer would be 10
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Step-by-step explanation:

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Yanka [14]

Looks like the system is

\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}

We can eliminate y by taking

(3x+2y+5z)-2(-2x+y+6z)=16-2(1)

\implies3x+2y+5z+4x-2y-12z=16-2

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so that z=x-2, and

(7x+3y-4z)-3(-2x+y+6z)=11-3(1)

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Substitute z=x-2 into this last equation and solve for x:

13x-22(x-2)=8

\implies13x-22x+44=8

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\implies x=4

Then

z=x-2

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Plug these values into any one of the original equation to solve for y:

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6 0
3 years ago
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Travka [436]
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If we're rounding to 2 decimal places, 6 will round up to 7

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7 0
3 years ago
Y+3=2(x+5), write the equation of the line in slope intercept form.
Alex

Answer:

slope intercept form: y=mx+b

y+3=2(x+5)

step 1: use distributive property

y+3=2(x)+2(5)

y+3=2x+10

step 2: subtract 3 on both sides to make y by itself

y+3=2x+10

-3 -3

final answer: y=2x+7

6 0
2 years ago
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