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anyanavicka [17]
3 years ago
10

Aiden bought some noteboks and book covers for the upcoming school year.He bought a total of 13 items.Each notebook costs $1.37,

and each book cover costs $1.08. He spent total of $16.36..How many notebooks and how many book covers did he buy?
Mathematics
1 answer:
NARA [144]3 years ago
7 0
Answer: Aiden bought 8 notebooks and 5 covers.

This is a system of equations problem. To solve this, we have to write 2 different equations and then solve them.

Our equations are:

x + y = 13
1.37x + 1.08y = 16.36

Where x is the number of notebooks and y is the number of covers.

To solve these equations, you can use anyone of these methods:
1) Graphing
2) Substitution
3) Elimination

The easiest way would be to graph them with a graphing calculator and find the point of intersection.
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Snezhnost [94]
B 1.0 ml a and c give a more precise measurement going to the hundredths and thousandths place
8 0
4 years ago
-2 = -5t + 10t + 2t<br><br> t = ? <br> Help!
romanna [79]

Hello there!

-2 = -5t + 10t + 2t\\

Explanation:

↓↓↓↓↓↓↓↓↓

First you had to switch sides.

-5t+10t+2t=-2

Then you add similar elements.

7t=-2

Divide by 7 from both sides of the equation.

\frac{7t}{7}=\frac{-2}{7}

Simplify it should be the correct answer.

t=-\frac{2}{7}

Answer⇒⇒⇒⇒⇒t=-2/7

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

5 0
4 years ago
Total of 380 tickets were sold for the school play. they were either adult tickets or student tickets. there were 70 fewer stude
Bogdan [553]
Let the amount of adult tickets sold be x

Since the total of 380 tickets sold consists of the amount of adult tickets and the amount of children tickets that are 70 fewer:

x + (x - 70) = 380
2x - 70 =380
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Therefore, the amount of adult tickets sold is 225

8 0
4 years ago
Factor the polynomial function over the complex numbers.
Bumek [7]

Answer:

[x - 1][x + 1][{x}^{2} + 4]

Step-by-step explanation:

Knowing that you have to find two numbers that when they differ to 3, they also multiply to −4, and those numbers are −1 and 4. So, after clearing that up, you will have this [since our degree of this polynomial function is 4]:

[{x}^{2} - 1][{x}^{2} + 4]

Then, since {x}^{2} - 1 is factorable, you will get this:

[x - 1][x + 1]

Finally, attach [{x}^{2} + 4] to the partially factored polynomial to get this:

[x - 1][x + 1][{x}^{2} + 4]

I am joyous to assist you anytime.

4 0
4 years ago
What is the solution to the equation x + 17 = 74? (Input a whole number only.) Numerical Answers Expected!
miss Akunina [59]

The answer is x=57

its this because x+17=74 you subtract 17 from each side getting x=57

8 0
3 years ago
Read 2 more answers
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