Me out on my last questions for 50

7.at jessica’s school, students can buy scientific calculators for $15.00 each. graphing calculators cost 5 times that amount. if $345.00 worth of calculators were sold and 3 of those were graphing calculators, how many scientific calculators were sold?

8.for a set of three consecutive odd integers, three times the largest integer is 7 less than twice the sum of the other two integers. what is the largest integer in the set?

9.two trains are traveling towards each other at a constant speed.
the trains are currently 714 miles from each other.
the speeds of the trains differ by 8 miles per hour.
the trains will meet in 7 hours.
what is the speed of the faster train?

john has 55 candy left.

answer: jasmine will bake 4/3 or 1 1/3 cookies in an hour

step-by-step explanation:

if u add 1/3 every 15 minutes after an hour u will have 4/3 or 1 1/3

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.