A. 8
B. 11
C. 22
D. 41
For this case we have the following variables:
x: number of nickels
y: number of dimes
z: number of quarters
We now write the system of equations that models the problem:
Rewriting the equations as a function of z we have:
From here, we clear the value of z:
Answer:
The number of quarters that Rachna has is:
B. 11
Pick a card from a deck of standard playing cards four times, with red suits representing those who prefer watching a movie at a theater and black suits representing those who do not.
Spin a spinner with four equal sections three times, with one section representing each person.
Roll a six-sided die four times, with even numbers representing those who prefer watching a movie at a theater and odd numbers representing those who do not.
Generate a set of four numbers using a number generator, with numbers 0 to 5 representing those who prefer watching a movie at a theater and 6 to 9 representing those who do not.
Select all the correct answers.
Answer:
1. Flip a fair coin four times, with heads representing teenagers who prefer watching a movie at a theater and tails representing those who do not.
2. Pick a card from a deck of standard playing cards four times, with red suits representing those who prefer watching a movie at a theater and black suits representing those who do not.
4. Roll a six-sided die four times, with even numbers representing those who prefer watching a movie at a theater and odd numbers representing those who do not.
Step-by-step explanation:
Basically you need to do something 4 times, with each time having a 50/50 chance.
For 1, it flips the coin 4 times and a coin toss is 50/50
For 2, it pics 4 cards, and the deck of cards has a 50-50 chance of either red or black
For 3, it spins it only 3 times, so is wrong
For 4, it rolls the die 4 times, and even and odd is 50-50
For 5, 0-5 consist of 6 number, while 6-9 is only 4 numbers thus is not 50-50 so is wrong
Answer:
1,2,4
Step-by-step explanation:
if ur in courseware then i just did the math test as well