Elmer has a collection of 300 fossils. Of those, 21% are fossilized snail shells. How many fossilized snail shells does Elmer have?

Answers

Answer 1

Answer: use the percent proportion

21 x
—— = ——
100 300

to solve :
21 x 300 = 6300
6300 ÷ 100 = 63

Answer = 63 of Elmer’s shells are fossilized snail shells :)

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What’s is the factor expression of 12x-10

Answers

Answer:

2(6x-5)

Step-by-step explanation:

2 is the greatest common factor of both 12 and 10.

How many times greater is the value of 6 in 640,700 than the value of the 4 in 67,040?

Answers

Answer:

15000 times greater is the value of 6 in 640,700 than the value of the 4 in 67,040.

Step-by-step explanation:

Given : 640,700 and 67,040.

To find : How many times greater is the value of 6 in 640,700 than the value of the 4 in 67,040.

Solution : We have given 640,700 and 67,040.

In 640,700

in this 6 is at hundred thousand place = 600,000

In 67,040

Here 4 is at ten place = 40 .

We can write 600,000 = 15000 * 40.

So, We can say 600,000 is 15000 times the 40.

Therefore, 15000 times greater is the value of 6 in 640,700 than the value of the 4 in 67,040.

Well the 6 is in the One-Hundred Thousand place while the 4 is in the Tens place.

So it would be 100x greater

Which number will have the same result when rounded to the nearest ten or hundred A-97 B-118and5 C-179 D-5091

Answers

Lets round it to the nearest ten
A 97 ====> 100
B 118 ===> 120
C 179 ===> 180
D 5091 ==> 5090
No result yet, lets round to the nearest hindred.
A 97 ====> 100
B 118 ===> 100
C 179 ===> 180
D 5091 ==> 5100
As we can see only A give the same result when we round it to the nearest hundred and nearest ten.

Can you draw an isosceles triangle with one 80 degree angle?

Answers

Sure. Then the other two angles are 50 degrees each.

An isosceles triangle has 2 sides that are the same length. The opposite angles of equivalent sides will also be equivalent. So, if you have a triangle with an 80 angle the other 2 angles will be 50 degrees each (to total 180 degrees). Since these angles are equivalent, the opposite sides are equivalent and you satisfy the requirement for an isosceles triangle.

Yay!

A square is cut out of a circle whose diameter is approximately 14 feet. What is the approximate area (shaded region) of the remaining portion of the circle in square feet? ( where A=rrx2 rr =3.14

Answers

Answer: 56 square feet

Step-by-step explanation:

When a square is inscribed within a circle, the side length of the square is equal to the diameter of the circle, divided by the square root of 2, this is the same as a square being cut out of the circle.

This means that area of the square = $((14)/(√(2) )) ^(2)$