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coldgirl [10]
3 years ago
11

50% of all the cakes jenny baked that week were party cakes, 1/5 were fruit cakes, and the remainder were sponge cakes, what per

centage of cakes were sponge cakes?
Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0
x-\ all\ cakes\\\\
50\%x=0,5x\\\\
\frac{1}{5}x=0,2x-\ fruit\ cakes\\\\
sponge\ cakes=1x-0,2x-0,5x=1x-0,7x=0,3x\\\\
Sponge\ cakes\ were\ 30\%\ of\ all\ cakes.

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210

Step-by-step explanation:

Here comes the problem from Combination.

We are being asked to find the number of ways out in which 3 students may sit on 7 seats in a row. Please see that in this case the even can not be repeated.

Let us start with the student one. For him all the 7 seats are available to sit. Hence number of ways for him to sit = 7

Let us see the student second. For him there are only 6 seats available to sit as one seat has already been occupied. Hence number of ways for him to sit = 6

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AURORKA [14]

Answer:

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Step-by-step explanation:

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3 years ago
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evablogger [386]
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