Answer:
15 x p = 300 OR 15p = 300
Step-by-step explanation:
Answer:
x= 19
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646/3=x
To check it: x*3 should =646
Answer:
The price of one cookie is $1.25 and the price of one cake is $15.
Step-by-step explanation:
Let $x be the price of one cookie and $y be the price of one cake.
1. On Monday, Sean bought 3 cookies and 5 cakes, then he spent $(3x+5y) and this is $78.75. Thus,
2. On Tuesday, Sean bought 8 cookies and 2 cakes, then he spent $(8x+2y) and this is $40. Thus,
3. Solve the system of two equations:
Multiply the first equation by 2 and the second equation by 5 and subtract them:
Then
Answer:
25% are purebred
Step-by-step explanation:
7 out of 28 dogs are purebred
7 x 10 = 70
28 x 10 = 280
70 / 280 = 2.5 / 10 = 25 / 100 = 25%