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Alika [10]
3 years ago
13

Marco needs to buy some dog food at the nearest store five bags of dog food cost $27 and 50 Cent how much would Marco spin on th

ree bags of dog food
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
7 0

Answer:

16.5

Step-by-step explanation:

27.50/5 =5.5x3=16.5

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Grouping \ factors:\\\\
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4 years ago
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3. Sum of digits of a two digit number is 14. When 18 is added to the original number, then the new number is obtained by exchan
Nitella [24]

Answer:

let the numbers be xy

general form of the number =10x+y

sum of digits of a number =14

x+y=14………[1]

if 18 is added to the number, then digits are interchanged

10x+y+18=10y +x

9x-9y=-18

X-y=-2………[2]

the linear equations are 1) x+y=14

2) X-y=-2

adding [1],[2]

2x=12

x=6

x+y=14

y=14-x

y=14-6

y=8

there fore the number =10*6+8

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check:-

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2)68+18=86

I hope this helped!

Step-by-step explanation:

6 0
4 years ago
Write an equation of the line that is perpendicular to the line y - 2x + 8, and which passes through the point (6,-2)
alexandr1967 [171]

Answer:

A. y - 2x + 4

Step-by-step explanation:

8 0
4 years ago
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?
ioda

Answer:

The fraction will decrease 33.33\%

Step-by-step explanation:

Let

x/y ----> the fraction

we know that

100%-50^=50%=50/100=0.50

100%-25%=75%=75/100=0.75

substitute

\frac{x}{y}*\frac{0.50}{0.75} =\frac{2}{3}(\frac{x}{y})

therefore

The percent that the fraction will decrease is equal to

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3 years ago
Solve: 4= -0.8n<br> I forgot how to do this can someone help?
frez [133]

Answer:

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Step-by-step explanation:

<em>Just</em><em> </em><em>divide</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>-0</em><em>.</em><em>8</em>

<em>:</em><em>)</em><em> </em>

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