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Charra [1.4K]
3 years ago
6

At a restaurant the ratio of kids meals sold to adult meals sold was 3:9. If there 12 kids meals sold, what is the combined amou

nt of kids and adult meals sold?
Mathematics
2 answers:
aleksandrvk [35]3 years ago
5 0
\frac{3}{9} =  \frac{12}{x} 

3x = 108, 
x = 36

36+12 = 48
Bess [88]3 years ago
4 0
Have the unknown amount = x 
so 3x : 9x
 you know how many kids meals were bought is equal to the ratio (3x = 12, so x=4)
you already know how many X's for the adults (9) so just multiply (9x4= 36)
lastly add since you need to find the total meals bought (36+12= 48) 
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4 0
2 years ago
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What is the image of point (4, 5) after a counterclockwise rotation of 270º about the origin?
andriy [413]
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A clockwise rotation of </span><span>90º about the origin of a point in the first quadrant of the xy-plane will have its image in the fourth quadrant of the xy-plane. Thus the x-value of the image remains positive but the y-value of the image changes to negative.
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3 years ago
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1

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