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Arte-miy333 [17]
2 years ago
9

Ali has $50 to spend on used books. Hardcover books cost $7 and paperback books cost $3 each. What equation in standard form det

ermines the
number x of hardcover books and the number y of paperback books he can buy?
The equation in standard form is

Asap plz
Mathematics
1 answer:
Alex Ar [27]2 years ago
8 0
Here is the equation in standard form :)

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PLZ HELP ME WILL MARK BRAINLIEST IF CORRECT NO BS
Rom4ik [11]
Assuming it's just wanting to know what -4+or- sqrt(26):

adding: x= 1.1
subtracting: x=-9.1

Hope this helped!
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3 years ago
Please help! Use the Pythagorean theorem
Harrizon [31]

Answer:

its 10

Step-by-step explanation:

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3 years ago
Read 2 more answers
The symphonic choir and the jazz choir are recording songs for an album. The album can be no more than 72 minutes long. The jazz
zimovet [89]

Answer:

The symphonic choir can record a maximum of 14 songs.

Step-by-step explanation:

We know that the album cannot be more than 72 minutes long, and the jazz choir records a total of 7 (3min) = 21  song minutes.

If we call c the number of songs the symphonic choir records , and each song is 3.5 minute long, then the song minutes for the symphonic choir are 3.5c; therefore, we have the inequality

3.5c+21\leq 72<em> (this says the song minutes for jazz choir plus song minutes for symphonic choice cannot exceed 72 minutes )</em>

We solve this inequality by subtracting 21 from both sides and then dividing by 3.5:

3.5c\leq 51

$c\leq \frac{51}{3.5} $

c\leq 14.47

The maximum integer value c can take is 14; therefore, the maximum number of songs the symphonic choir can record is 14 songs.

3 0
3 years ago
Explain why parallelograms are always
Mars2501 [29]

Answer: Parallelogram is a kind of quadrilateral where as there are some quadrilaterals (like trapezoid , kite, .. ) that do not satisfy the properties of parallelograms.

Step-by-step explanation:

A quadrilateral is a closed polygon having fours sides.

A parallelogram is a kind of quadrilateral having following properties:

Its opposite sides and opposite angles are equal.

The sum of adjacent angles is 180°.

The diagonal of parallelogram bisect each other.

A Trapezoid is also a quadrilateral . It has only one pair of parallel sides. (The other one are not parallel).

So , all quadrilaterals not parallelograms.

Therefore, parallelograms are always quadrilaterals but quadrilaterals are sometimes parallelograms because parallelogram is a kind of quadrilateral where as there are some quadrilaterals (trapezoid , kite, .. ) ) that do not satisfy  the properties of parallelograms.

plz mark me as brainliest :)

6 0
3 years ago
If x &gt; 0 and y &lt; 0, where is the point (x, y) located?
dlinn [17]

Answer:

Quadrant 4

Step-by-step explanation:

x > 0 means towards right of the origin

y < 0 means below the origin

So Quadrant 4

6 0
3 years ago
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