MATHEMATICS HIGH SCHOOL

Please help for brainliest, ONLY PART C!!!!(PLS note that brainliest can only be given when there are 2 answers, if ur the only person that responded i cannot give u brainliest, this i s bc u can only b the brainliest answer out of 2, but you cant be the brainliest answer out of only u, if that makes sense]

Answers

Answer 1

Answer:

Answer:

They played 4 games and paid $19

Step-by-step explanation:

4x + 3 = 2x + 11 (You basically have to solve for X)

4x - 2x = 11 - 3 (move like terms together)

2x = 8

x = (8/2)

x = 4

This means they had to play 4 games.

To get how much they paid, just plug 4 into any one of those given equations (They will both give the same answer).

4x + 3 ⇒ 4(4) + 3 = $19

To check if this is true,

2x + 11 ⇒ 2(4) + 11 = $19

Therefore, they paid $19

Answer 2

Answer:

Answer:

$19 and played 4 games

Related Questions

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Solve each pair of simultaneous equation only by substitution method
8x+3y=7
3x+5y= -9

Answers

x = 2, y = -3

8x + 3y = 7
3y = -8x + 7
y = -8/3x + 7/3

3x + 5y = -9
3x + 5(-8/3x + 7/3) = -9
3x - 40/3x + 35/3 = -9
9/3x - 40/3x + 35/3 = -27/3
-31/3x = -62/3
-31x = -62
x = 2

8(2) + 3y = 7
16 + 3y = 7
3y = -9
y = -3

Check
3(2) + 5(-3) = -9
6 - 15 = -9
-9 = -9 :)

Which of the following shows a number in fraction form? A. 3 B. 3.7 C. 3 ∕7 D. √2

Answers

c because u have 3/7 which is a fraction

Hi there! Well 3 doesn't show a fraction, 3 is a whole number. 3.7 doesn't show a fraction, that is a decimal. √2 isn't a fraction, it is a square root. So, we only have one answer choice left and that is 3/7. Therefore, the answer is C. 3/7

During a sale at the bookstore, books sold for $3 and magazines sold for $2.50. Jan spent $16 and bought a total of 6 books and magazines. How many of each did she buy

Answers

In the given question, there are several information's of immense importance. using these information's the required answer can be easily deduced. It is already given that Jan had spent $16 for buying books and magazines. The cost of each book is $3 and the cost of each magazine is $2.50. Jan bought a total of 6 books and magazines.
Let us assume that the number of books Jan bought = x
the number of magazines Jan bought = y
Then
x + y = 6
x = 6 - y
and
3x + 2.5y = 16
Replacing the value of x from the first equation in the second we get
3x + 2.5y = 16
3(6 - y) + 2.5y = 16
18 - 3y + 2.5y = 16
- 0.5y = -2
y = 2/0.5
= 4
Replacing the value of y in first equation we get
x + y = 6
x + 4 = 6
x = 2
So Jan bought 2 books and 4 magazines.

Answer:

She bought 2 books and 4 magazines

Frank's bank charges a variable finance rate of 1.5 percent on purchases up to $100, and one percent for purchases over $100. If his unpaid balance is $354.15 this month, what is his finance charge?

Answers

Answer:

Hi there, $4.04 should be his finance charge.

Step-by-step explanation:

Prove this (sinx-tanx)(cosx-cotx)=(sinx-1)(cosx-1)

Answers

(sinx−tanx)(cosx−cotx)

=(sinx−sinxcosx)(cosx−cosxsinx)

=sinx(1−1cosx)cosx(1−1sinx)

=sinx(cosxcosx−1cosx)cosx(sinxsinx−1sinx)

=sinxcosx(cosx−1)cosxsinx(sinx−1)

=(cosx−1)(sinx−1)

distribute first
sinx cosx - sinx cotx - cosx tanx+tanx cotx
sinx cosx - sinx (cosx/sinx) - cosx (sinx/cosx) + tanx (cosx/sinx)
sinxcosx - cosx - sinx +1
and factor
cosx(sinx -1) -1(sinx - 1)
(sinx -1)(cosx-1)

What is the x-intercept of the graph of the function f(x) = x^2 − 16x + 64?

Answers

Answer:

Step-by-step explanation: