X=price of a hot dog
y=price of a soft drink
We can suggest the following system of equations:
6x+4y=13
3x+4y=8.50
We solve this system of equations by reduction method.
6x+4y=13
-(3x+4y=8.5)
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3x=4.5 ⇒x=4.5/3=1.5
Answer: the price of a hot dog will be $1.5.
If you want to know the price of a soft drink, you have to find "y".
6x+4y=13
6(1.5)+4y=13
9+4y=13
4y=13-9
4y=4
y=4/4
y=1
The price of a soft drink is $1.
Answer: The number of people can be expected to have cold = 34
Step-by-step explanation:
Given: The ratio of people who actually have the flu to the people who have flu-like symptoms is 1:6.
If a doctor sees 40 patients, then the number of people can be expected to have cold =
Hence, the number of people can be expected to have cold = 34
Answer:
First write the polynomial
- Substitute the value of x=-5
Answer:
a
Step-by-step explanation: