All categories

3 years ago

A publishing company produces 15 books in 3 hours. How long would it take to produce 20 books at the same rate?

Mathematics

2 answers:

marissa [1.9K]3 years ago

8 0

The answer would be 15 hours

aliya0001 [1]3 years ago

6 0

Answer:

4 hours

Step-by-step explanation:

Since the company was able to produce 15 book in 3 hours, that mean they produce 5 book every hour. So adding 5 more books to 15 to get 20 means that you add one more hour. So it would be 4 hours! hope this helps!:)

You might be interested in

Estimate. Then find the difference 300,980 -159,000

Softa [21]

Answer:

142,000

Step-by-step explanation:

I would round 300,980 to the nearest thousands place = 301,000

Subtract 301,000 and 159,000 = 142,000

4 0

3 years ago

3. What information does a compound's empirical formula give us?

Anna11 [10]

Answer:

Step-by-step explanation:

empirical formulas are the simplest form of notation so they provide the lowest whole number ratio between the elements in a compound

4 0

3 years ago

Find the area of the given triangle to the nearest square unit. Angle a= 30 degrees, b=10, angle B=45 degrees

storchak [24]

Answer:

$A=34\ units^2$

Step-by-step explanation:

Suppose we have a general triangle like the one shown in the figure.

We know the angle A, the angle B and the length b.

$A = 30\°\\\\B = 45\°\\\\b = 10$

By definition I know that the sum of the internal angles of a triangle is always equal to 180 °.

$A + B + C = 180\\\\30 + 45 + C = 180$

We solve the equation and thus we find the angle C.

$C = 180 - 30-45\\\\C = 105$

We already know the three triangle angles.

Now we use the sine theorem to calculate the sides c and a.

The sine theorem says that:

$\frac{sin(A)}{a}=\frac{sin(B)}{b}=\frac{sin(C)}{c}$

Then

$\frac{sin(30)}{a}=\frac{sin(45)}{10}$

$\frac{sin(30)}{\frac{sin(45)}{10}}=a$

$a=7.071$

Also

$\frac{sin(105)}{c}=\frac{sin(45)}{10}$

$\frac{sin(105)}{\frac{sin(45)}{10}}=c$

$c=13.660$

Finally, we use the Heron formula to calculate the triangle area

$A=\sqrt{s(s-a)(s-b)(s-c)}$

Where s is:

$s=\frac{a+b+c}{2}$

Therefore

$s=\frac{7.071+10+13.660}{2}$

$s=15.37$

$A=\sqrt{15.37(15.37-7.071)(15.37-10)(15.37-13.66)}$

$A=34\ units^2$

3 0

3 years ago

Represent 5/8 on a number line please i'm confused

Rudiy27

Answer:

tHE ANSWER IS PIC

Step-by-step explanation:

6 0

2 years ago

If y=2x-8, what is the value of x when y=0? A)-4 B)0 C)4 D)8

Savatey [412]

If y=0 then,
2x-8=0
2x=8
X=8/2
X=4
Answer is c

6 0

2 years ago

Read 2 more answers