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Mnenie [13.5K]
3 years ago
14

Jonah's family is ordering dinner. Each adult meal costs $8.50, each kid meal costs $6.75, and

Mathematics
1 answer:
katovenus [111]3 years ago
4 0

Answer: D. 8.50a + 6.75k + 1.75(a + k)

Step-by-step explanation:

Cost of adult meal = $8.50

Cost of kid meal = $6.75

Cost of drink = $1.75

Number of adults = a

Number of kids = k

Since everyone orders a meal and

a drink, the expression that can be used to express the total cost of the meal will be:

Cost for adults:

= (8.50 × a) + (1.75 × a)

= 8.50a + 1.75a

Cost for kids:

= (6.75 × k) + (1.75 × k)

= 6.75k + 1.75k.

To get the total cost, we add the cost for adults and kids together. This will be:

= 8.50a + 1.75a + 6.75k + 1.75k.

= 8.50a + 6.75k + 1.75a + 1.75k

= 8.50a + 6.75k + 1.75(a + k)

Therefore, the correct option is D.

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Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

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y=a(x-50)^2+25

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