Ketut is organizing a barbecue for his parents. he knows that 13 of his mom’s friends prefer hot dogs and 9 of his dad’s friends prefer hamburgers. he organizes a two-way table to determine what he needs to buy. which describes the variables he can use in the first row and first column of his table?
a. meal choice and number of mom’s friends
b. meal choice and number of guests
c. parent and number who prefer hot dogs
d. parent and meal choice

I believe the correct answer is D

D.parent and meal choice

Step-by-step explanation:

Given : Ketut is organizing a barbecue for his parents. He knows that 13 of his mom’s friends prefer hot dogs and 9 of his dad’s friends prefer hamburgers.

To Find: He organizes a two-way table to determine what he needs to buy. Which describes the variables he can use in the first row and first column of his table?

Solution:

Since we are given that she is organizing a table of meal for parents or their friends .

So, table must include column of parents and choice of meal.

Since we are given that 13 friends is of her mom and 9 friends is of her dad and their meal choices are given .

So, the variables he can use in the first row and first column of his table is parent and meal choice.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x