Ask question

Ask question

All categories

2 years ago

11

You sell instruments at a Caribbean music festival. You earn $326 by selling 12 sets of maracas, 6 sets of claves, and x x djemb

e drums. Write an equation you can use to find the number of djembe drums you sold. An equation that you can use is c =326 .

1 answer:

MissTica2 years ago

8 0

326 = 12m + 6c + x = 18 rounded to 19

You might be interested in

Let f(x)=4x-1 and g(x)=2x^2+3. Perform each function operations and then find the domain.

Triss [41]

F(x) = 4x - 1
g(x) = 2x² + 3

1. (f + g)(x) = (4x - 1) + (2x² + 3)
(f + g)(x) = 2x² + 4x + (-1 + 3)
(f + g)(x) = 2x² + 4x + 2
Domain: {x| -∞ < x < ∞}, (-∞, ∞)

2. (f - g)(x) = (4x + 1) - (2x² + 3)
  (f - g)(x) = 4x + 1 - 2x² - 3
(f - g)(x) = -2x² + 4x + 1 - 3
(f - g)(x) = -2x² + 4x - 2
Domain: {x|-∞ < x < ∞}, (-∞, ∞)
3. (g - f)(x) = (2x² + 3) - (4x - 1)
(g - f)(x) = 2x² + 3 - 4x + 1
(g - f)(x) = 2x² - 4x + 3 + 1
(g - f)(x) = 2x² - 4x + 4
Domain: {x| -∞ < x < ∞}, (-∞, ∞)

4. (f · g)(x) = (4x + 1)(2x² + 3)
(f · g)(x) = 4x(2x² + 3) + 1(2x² + 3)
(f · g)(x) = 4x(2x²) + 4x(3) + 1(2x²) + 1(3)
(f · g)(x) = 8x³ + 12x + 2x² + 3
(f · g)(x) = 8x³ + 2x² + 12x + 3
Domain: {x| -∞ < x < ∞}, (-∞, ∞)

5. $(\frac{f}{g})(x) = \frac{4x - 1}{2x^{2} + 3}$
Domain: 2x² + 3 ≠ 0
- 3 - 3
2x² ≠ 0
2 2
  x² ≠ 0
x ≠ 0
(-∞, 0) ∨ (0, ∞)

6. $(\frac{g}{f})(x) = \frac{2x^{2} + 3}{4x - 1}$
Domain: 4x - 1 ≠ 0
+ 1 + 1
4x ≠ 0
4   4
x ≠ 0
  (-∞, 0) ∨ (0, ∞)

6 0

2 years ago

The data set gives the number of hours it took each of the 10 students in a cooking class to master a particular technique.

iris [78.8K]

4.5 thats the answer. Im just typing so its long enough blah blah blah

4 0

2 years ago

Read 2 more answers

The coordinate values of the vertices of △klm are integers. triangle klm has vertices located at (1, 1), (5, 4) and (5, 1). whic

worty [1.4K]

The rest of the queastion is :
<span> A) (-1, 1), (-1, 4), (2, 1)
B) (0, 0), (3, 4), (0, 5)
C) (-1, 1), (-4, 5), (-1, 5)
D) (0, 0), (-5, 0), (0, 4)
==============================
</span>

<span>The distance between two points (x₁,y₁),(x₂,y₂) = d
$d = \sqrt{ (x2-x1)^{2} + (y2-y1)^{2} }$ </span>

we have <span>K(1, 1), L(5, 4) and M(5, 1)
we will find the length between each two points.
KL = </span><span> $d = \sqrt{ (5-1)^{2} + (4-1)^{2} }$ = 5
</span>LM = <span> $d = \sqrt{ (5-5)^{2} + (1-4)^{2} }$ = 3
KM = </span><span> $d = \sqrt{ (5-1)^{2} + (1-1)^{2} }$ = 4

now check each group from the choices
the group that will give the same result will be the correct choice.
</span>The correct choice is C
<span>C) (-1, 1), (-4, 5), (-1, 5)

check the answer;
</span><span>K'(-1, 1), L'(-4, 5), M'(-1, 5)
</span>
<span>K'L' = <span> $d = \sqrt{ (-4+1)^{2} + (5-1)^{2} }$ = 5
</span>L'M' = <span> $d = \sqrt{ (-1+4)^{2} + (5-5)^{2} }$ = 3
K'M' = </span><span> $d = \sqrt{ (-1+1)^{2} + (5-1)^{2} }$ = 4</span></span>

6 0

2 years ago

Point M and N are midpoints of AB and DA respectively.

Fed [463]

<span>triangle CDN ≅ triangle CBM
</span><span>
Statement | Reason
line DC ≅ __BC___ | The sides of a square are congruent.
line BM ≅ __DN___ | They are both half the length of a side of the square.
angle __D___ ≅ angle B | All the angles of a square are congruent.
triangle CDN ≅ CBM |
by
</span><span>SAS</span>

5 0

2 years ago

A greengrocer sells melons at a profit of 37.5% on price he pays for it.What is the ratio of cost price to selling price

gavmur [86]

S-selling price
c-cost price
p-profit
p=37,5%
$\frac{s-c}{s}$ *100%=37,5% /:100%
$\frac{s-c}{s}$ =0,375 /*s
s-c=0,375*s /-s
0-c=-0,625*s /:(-s)
$\frac{c}{s}$ =0,625

5 0

2 years ago