Answer:
0.4r
Step-by-step explanation:
40% of the price of r dollars
To translate into an expression, we outline te keywords
Percentage of price = 40%
The price in question = $r
Hence, the expression will calculate, 40% of the price
Hence, we'll have :
40% of price
(40 / 100) * r
0.4 * r
= 0.4r
69 is the answer the equation would go as: 2(3.14)(11)=69.08
Well she charged twice as much to walk large then small. Let s be small and l be large.
We we know that
l = 2s
we also know that she wants to make 100 so
xl + ys = 100
Where where x is number of large and y is number of small. it says she walked 10 small and 5 large so
5l + 10s = 100
substitute 2s for l because they are same value as shown in first equation I made
5 (2s) + 10s = 100
10s + 10s = 100
20s = 100
s = 5
we can now solve for l
l = 2s
l = 2 * 5
l = 10
So s is 5 and l is 10.
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