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Effectus [21]
3 years ago
7

At a cost restaurant the cost for a hot dog and a soft drink is $2.10. The cost for two hot dogs and three soft drinks is $5.15.

Determine the cost of a soft drink
Mathematics
1 answer:
Alja [10]3 years ago
7 0

Answer:

The cost of soft drink is $0.95

Step-by-step explanation:

Let the cost of hot dog be x

Cost of 2 hot dogs = 2x

Let the cost of soft drink be y

Cost of 3 soft drinks = 3y

At a cost restaurant the cost for a hot dog and a soft drink is $2.10.

So, x+y=2.10

The cost for two hot dogs and three soft drinks is $5.15

So, 2x+3y=5.15

Plot the lines on the graph:

x+y=2.10 --Purple line

2x+3y=5.15 --- Black Line

Intersection point =(x,y)=(1.15,0.95)

Hence The cost of soft drink is $0.95

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A polynomial p has zeros when I = 0.2 = -
Rainbow [258]

Answer:

p(x) = (5x - 1) (x + 3)

Step-by-step explanation:

I apologize if I couldn't answer correctly, the question was a bit hard to understand because of the formatting.

Also I didn't see my answer in the list of answer choices but here it is:

if the polynomial has zeros at 0.2 and -3 the equation would have to be:

p(x)=(x-0.2)(x+3)

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p(x) = (5x - 1) (x + 3)

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3 years ago
What is the setting for "the three brass pennies"
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7 0
2 years ago
If I Row my canoe at 5 mph and I travel upstream at 3 mph, how fast will I be traveling downstream if I am rowing at the same ra
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3 years ago
A school club sold 220 T-shirts for a fundraiser. Adult-size shirts cost $20 each and child-size shirts cost $15 each. The total
andre [41]
{20a+15c=3550
{a+c=220

{20a+15c=3550
{15a+15c=3300
5a=250
a=50
There are 50 adult-size T-shirts were sold
4 0
3 years ago
Read 2 more answers
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