MATHEMATICS MIDDLE SCHOOL

Jose is trying to decide how many friends he can invite to his roller skating party. Skate rentals cost $2.50 per person, including Jose, and he knows that 3 adult chaperones plan to skate.How many friends can Jose invite if he wants to spend only $50.00 total on skate rentals?

Jose can invite___friends.

Answers

Answer 1

Answer:

Answer:

Jose can invite 16 friends.

Step-by-step explanation:

For roller skating, the skate rentals charge $2.50 per person.

Jose has to invite friends and wants to spend a total of $50.

$50 / $2.50 = 20

So, for $50.00, 20 people can enjoy roller skating.

Out of these 20 people, one will he Jose himself and 3 will be the adult chaperones.

20 - 4 = 16

Therefore, Jose can invite 16 friends for roller skating.

Answer 2

Answer:

Jose can invite 46 of his friends, given that there isn't tax. Because with a ticket costing $2.50 a person, and he at least knows that 50 people can go, and that 4 people are planning to, and are going to skate already.

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Describe two ways to write equivalent algebraic expression

Answers

Algebraic expressions are strings of numbers, variables and mathematical operations. Equivalent expressions are those that look different but turn out to be the same. For example: 4 * ( x + 5 ) = 4 x + 20. Or x^2 - 1 = ( x + 1 ) * ( x - 1 ).

What is the value of x?
x + 5 = - 6x - 16

Answers

x +5 = -6x - 16
add 16 to both sides
x+21 = -6x
add 6x to both sides
7x+21=0
factor out the seven
7(x+3)=0

if 7 times (x+3) = 0 then (x+3) must equal zero because 7 times 0 is 0

so x+3=0
subtract three from both sides
x= -3

Get all the x's on one side and everything else on the other side
x + 6x = -16 - 5
7x = -21
then divide by 7
x = -3

What is the length of a school desk

Answers

On average, most are around 24 inches

most are around 24 inches long.

RATE OF CHANGEPLZ HELP

Kim=green Trey= Red Ann=Black

JPG ATTACHED

Answers

A. you are looking for the person who reached the distance (4 miles) the fastest. Since the black line has the most distance changed in the least amount of time, Ann wins the races and has the fastest rate of change. the green line stops growing next, so Kim has the second fastest rate of change and gets second. That means that the red line ends last, has the slowest rate of change, and Trey gets third. so the race goes 1. Ann 2. Kim 3. Trey

Rate of change (speed) just means the distance traveled divided by the time it took. so we can do this for each person. Ann traveled 4 miles in 12 minutes, so you do 4/12 and get her rate of change which is 1/3 or .33 repeating
Next, we need to find Kim's rate of speed, so we take the distance she traveled (4 miles) divided by the time it took (16 minutes) if we do that we get 1/4 or .25
With Trey, he started at 2 miles, so his distance would be his final spot minus his starting spot, so he traveled 2 miles. if we take that and divide it by the time it took (18 minutes) we get 1/9 or .11 repeating.

Finally, we already found out that Ann has the fastest rate (1/3) and Trey has the slowest rate (1/9) we can prove this by stating that Ann traveled the most distance in the least amount of time. she traveled 4 miles in 12 minutes, which is greater than or equal to the other to distances by less than both times taken.

We can prove that Trey has the slowest rate because he traveled the least distance (2 miles) in the most time (18 minutes) that means that he took longer than the other two to travel less distance. his distance is less than the others and his time taken is greater than both of the other racers' times.

Which of these is a tangent line to y= -x^2 at x=4