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
joja [24]
3 years ago
5

Robyn saves up $204 and spends $32.50 on books. She wants to purchase more books from a sale where they cost $8.15 each. Which a

nswer gives the best estimate for the number of books Robyn can buy?
Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer: 21 books

Step-by-step explanation:

I am estimating $32.50 to $33.

Remaining amount= 204 - 33 = $171

$8.15 = $8

$171 ÷ $8 = 21.375

Estimated answer = 21 books.

By reading the question it feels like there are options to choose from for the final answer. If it is, then choose the one which seems as close as possible to what I have got above.

Hope this helps :)

You might be interested in
Box plots! pls help!
aliina [53]

Answer:

the answer is b i thinkk.

8 0
3 years ago
Read 2 more answers
(b) If the pill is to contain 1,000 milligrams of vitamin C, then how much vitamin C does the pill contain per
daser333 [38]

The question is incomplete. Below is the complete question:

A pill has the shape of a cylinder with a hemisphere at each end. The height of the cylindrical portion 11

mm and the overall height is 18 mm.

(a) Find the volume of the pill in cubic millimeters. Round to the nearest cubic

millimeter.

(b) If the pill is to contain 1,000 milligrams of vitamin C, then how much vitamin C does the pill contain per

cubic millimeter? Round to the nearest tenth of a cubic millimeter.

Answer:

a. 603 cubic millimetre

b. 1.7 mg/mm^3

Step-by-step explanation:

The since the pill has the shape of a cylinder and 2 hemispheres at both ends of the cylinder, if we are to calculate the volume, we will need the formula for calculating the volume of a cylinder and the volume of a hemisphere:

a. The volume of a cylinder = π×r^2×h and the volume of a hemisphere = 2×π×r^3.

The total height of the pill is 18mm but that of the cylinder specifically is 11cm, so 18 - 11 = 7mm.

This becomes the combined radius of the two hemispheres. We will now split it into 2:

7/2 = 3.5mm

This becomes the radius of each of the 2 hemispheres and will be used for calculating their respective volumes. The cylinder too will share same radius with the spheres (3.5mm). Let us take π as 3.14

Volume of the pill is then:

V =[2× (2/3 × π×r^3)] + π×r^2×h

V = [2×[(2/3) × 3.14 × 3.5^3]] + 3.14 × (3.5^2) × 11

[2 × (89.752)] + 423.115

179.504 + 423.115

= 602.619

= 603mm^3 (nearest cubic millimetre)

b. In order to find out how much vitamin C the pill will contain per cubic millimetre if it is to contain 1000mg of vitamin C, we will simply divide 1,000mg by the already calculated volume:

= 1000/63

= 1.658

= 1.7 mg/mm^3 (nearest tenth)

4 0
3 years ago
What is the perimeter of a rectangle with a length of 48 inches and a width of 16 inches
VARVARA [1.3K]

Answer: 128 inches

Step-by-step explanation:

let's start with the perimeter: the perimeter is the total length to the sides/edges of a shape.

since we're dealing with a rectangle, there will be 4 sides

two lengths & two widths

so 48+48+16+16=128 inches

8 0
3 years ago
Read 2 more answers
An acute angle can have all of the following measures except 89 45 10 0
Naddik [55]
0 is the only degree that cannot work
3 0
3 years ago
Read 2 more answers
Find the area please
tatuchka [14]

Answer:

D

Step-by-step explanation:

Recall that the area of a triangle is given by:

\displaystyle A = \frac{1}{2} bh

In this case, the base is <em>x</em> and the height is <em>y</em>. Hence:

\displaystyle A = \frac{1}{2} xy

We can write the following ratios:

\displaystyle \sin \alpha = \frac{x}{12} \text{ and } \cos \alpha = \frac{y}{12}

Solve for <em>x</em> and <em>y</em>:

\displaystyle x = 12\sin \alpha \text{ and } y = 12\cos \alpha

Substitute:

\displaystyle A = \frac{1}{2}\left(12\sin \alpha\right)\left(12\cos \alpha\right)

And simplify. Hence:

\displaystyle A = 72\sin \alpha \cos\alpha

In conclusion, our answer is D.

6 0
2 years ago
Other questions:
  • Which trinomial is the product of the expression below ?
    12·1 answer
  • How can you know if this equation is true 1/3+1/5=2/8=1/4
    14·2 answers
  • How much does your favorite rapper make a day​
    11·2 answers
  • Select the correct answer.
    10·2 answers
  • Working alone, it takes Kristin 11 hours to harvest a field. Kayla can harvest the same field in 16 hours. Find how long it woul
    11·1 answer
  • Four college roommates rented an apartment together. When they moved out, they were charged $1500 for damages to the carpet and
    10·1 answer
  • 144=12x <br> 45 =4x-27 <br> 2x-2=14 <br> 12x=44-10x does any one kno these questions?
    15·2 answers
  • As an airplane rises. the outside temperature from 3.6F for every 1000 feet of elevation gain. Suppose the outside temperature i
    11·1 answer
  • I need help on this question!
    14·1 answer
  • Can you help me solve? Question is on top left
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!