All categories

3 years ago

Elmer has a collection of 300 fossils. Of these, 21% percent are fossilized snail shells.

Mathematics

2 answers:

miskamm [114]3 years ago

5 0

300*(21/100)= 63

Elmer has 63 fossilized snail shells.

Hope this helps~

marishachu [46]3 years ago

3 0

<span>Importance should be given to all the information’s already given in the question.</span>Number of fossils that Elmer has = 300
Percentage of snail shell fossils = 21%
Then
Number of snail shell fossils that Elmer has = (21/100) * 300
= 21 * 3
= 63
So Elmer has 63 snail shell fossils.I hope the procedure is absolutely clear to you and the answer is also correct. Following this procedure it will be possible for you to solve such question with ease in future.<span>
</span>

You might be interested in

Which of the following best describes the volume of a cylinder?

Ahat [919]

<span>A. the area of the circular base multiplied by the height of the cylinder B. the circumference of the circular base multiplied by the height of the cylinder C. the sum of the areas of the two circular bases multiplied by the height of the cylinder D.</span>

4 0

3 years ago

Suppose that S is the set of successful students in a classroom, and that F stands for the set of freshmen students in that clas

lora16 [44]

Answer:

b) 24

Step-by-step explanation:

We solve building the Venn's diagram of these sets.

We have that n(S) is the number of succesful students in a classroom.

n(F) is the number of freshmen student in that classroom.

We have that:

$n(S) = n(s) + n(S \cap F)$

In which n(s) are those who are succeful but not freshmen and $n(S \cap F)$ are those who are succesful and freshmen.

By the same logic, we also have that:

$n(F) = n(f) + n(S \cap F)$

The union is:

$n(S \cup F) = n(s) + n(f) + n(S \cap F)$

In which

$n(S \cup F) = 58$

$n(s) = n(S) - n(S \cap F) = 54 - n(S \cap F)$

$n(f) = n(F) - n(S \cap F) = 28 - n(S \cap F)$

$n(S \cup F) = n(s) + n(f) + n(S \cap F)$

$58 = 54 - n(S \cap F) + 28 - n(S \cap F) + n(S \cap F)$

$n(S \cap F) = 24$

So the correct answer is:

b) 24

3 0

3 years ago

The equation the quantity 2x minus 20 divided by 3 = 2x models temperature change, where x represents the difference in degrees

irina [24]

The solution to the equation is x = -5

<h3>How to determine the value of x?</h3>

The equation is given as:

the quantity 2x minus 20 divided by 3 = 2x

Rewrite properly as

(2x - 20)/3 = 2x

Multiply through by 3

2x - 20 = 6x

Collect like terms

6x - 2x = -20

This gives

4x = -20

Divide by 4

x = -5

Hence, the solution to the equation is x = -5

Read more about equations at:

brainly.com/question/13763238

#SPJ1

5 0

1 year ago

Four-thirds (x) minus one-third = 9. Four-thirds (x) minus one-third + one-third = 9 + one-third. Four-thirds (x) = StartFractio

Fiesta28 [93]

Answer:

$x = 7$

Step-by-step explanation:

Given

$\frac{4}{3}x - \frac{1}{3} = 9$

Required

Solve for x

$\frac{4}{3}x - \frac{1}{3} = 9$

Add $\frac{1}{3}$ to both sides

$\frac{4}{3}x - \frac{1}{3} + \frac{1}{3} = 9 + \frac{1}{3}$

$\frac{4}{3}x = 9 + \frac{1}{3}$

Take LCM

$\frac{4}{3}x = \frac{27 + 1}{3}$

$\frac{4}{3}x = \frac{28}{3}$

Multiply both sides by $\frac{3}{4}$

$\frac{3}{4} * \frac{4}{3}x = \frac{3}{4} *\frac{28}{3}$

Evaluate the left hand side

$x = \frac{3}{4} *\frac{28}{3}$

$x = \frac{28}{4}$

Divide 28 by 4

$x = 7$

7 0

2 years ago

What are the coordinates of point F?

Alex17521 [72]

Answer: Point F is at location (-4, -5)

The x and y axis meet at the origin (0,0)

Start at the origin and move 4 units to the left. This means the x coordinate is x = -4

Then move 5 units down so the y coordinate is y = -5

Put together (x,y) = (-4, -5) describes where point F is located.

8 0

2 years ago

Read 2 more answers