1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DiKsa [7]
2 years ago
7

I’ll give the Brainliest to who answers this question with a reasonable explanation.

Mathematics
1 answer:
Lyrx [107]2 years ago
5 0
$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies
You might be interested in
Degree 4; zeros: -3+2i; 2 multiplicity 2
enot [183]

Answer:

±4i, ±3

p(x) = A(x - 4i)(x + 4i)(x - 3)(x + 3), with A = 1.

Step-by-step explanation:

±4i, ±3

p(x) = A(x - 4i)(x + 4i)(x - 3)(x + 3), with A = 1.

8 0
2 years ago
I need help with finding the answer of 21 laps in 7 minutes
Dimas [21]
I'm not sure if that's what you mean, but I assume you might want to know how long did it take to make one lap if someone did 21 laps in 7 minutes.

If so, just divide 7 by 21:

7 ÷ 21 = 0.3333333... (repeating decimal) or 1/3 as a fraction.

It means that one lap took 1/3 of a minute (20 seconds).

If that's not what you meant, please specify the question :)
8 0
3 years ago
3х +2y = 13<br> 2х - у = 4
shepuryov [24]

Answer:

5x+y=17

Step-by-step explanation:

you subtract when you see the sign u add when u need to add.

4 0
3 years ago
I know that 700 divided by 70 =10 because the 7 in 700 represents 100 times what it represents in
Ronch [10]

"in" represent 10 because

7 * 10 = 700

3 0
3 years ago
Read 2 more answers
Write an equation with slope of negative 2 for (3, -4)​
4vir4ik [10]

Answer:

y = - 2x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 2 , then

y = - 2x + c ← is the partial equation

To find c substitute (3, - 4) into the partial equation

- 4 = - 6 + c ⇒ c = - 4 + 6 = 2

y = - 2x + 2 ← equation of line

8 0
2 years ago
Other questions:
  • Sean's new baby brother weighs 125.2 ounces. A nurse writes the weight in the chart rounded to the nearest ounce. Which is the w
    14·1 answer
  • Y=(?,?) x=(?,?) determine the intercept of the line
    15·2 answers
  • What is the area of the square below ?
    14·1 answer
  • What is the approximate length of arc s on the
    15·2 answers
  • If a leaf on the ground is 80 feet from the base of a tree, and the angle of elevation to the top of the tree from the leaf is 4
    9·2 answers
  • Which could be an equation for the graph?
    14·1 answer
  • Given the following quadratic function what’s the value of a, B, and C?<br><br> f(x)= 3x^2 - 5x -12
    5·1 answer
  • Nine joggers are running a race. The coach writes down the fractions of joggers that have crossed the finish line at various poi
    7·2 answers
  • (5, 14) and (18,3)? Helppppppppp
    8·1 answer
  • V+8w=4v,for v<br><br> -m+5n=-2, for n
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!