Is 4.87787778 a rational number

Answers

Answer 1

Answer: If the decimal can't be written into a ratio, then it is not rational.

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the first term in a sequence is an odd number the rule is to multiply by 2 explain why the rest of the terms in the sequence will be even numbers.

Answers

If you do that, then 2 will be a factor of all the terms after the first one.
And any number that has 2 as a factor is an even number.

What is 22/55 in simplest form

Answers

your answer would be 2/5 because u divide both number by 11.

the answer is 2/5 because you can divide the top and the bottom by 11 and get 2 for the top and 5 for the bottom, but you can't divide any number to the fraction any more making it in the simplest form.

Students in a dance class filled out a survey. There were 25 girls and some boys whoparticipated in the survey. The results showed that 20% of the students prefer tap dance to
ballroom dance. There are 9 students who prefer tap dance. Which equation can be used to
find the number of boys ( x) who participated in the survey?
A. 0.2 x + 25 = 9
B. 0.2( x + 25) = 9
C. 0.2(25 – 9) = x
D. 25 + x = 0.2 × 9

Answers

Given:
Girls = 25
Boys = ?
Number of students who prefer tap dance = 9
percentage of students who prefer tap dance = 20%

We need to divide 9 by 20% to get the total number of students who filled out a survey.

9 ÷ 20% = 45 total number of students

Girls + Boys = 45
25 + Boys = 45
boys = 45 - 25
boys = 20

The correct equation is: B. 0.2(x + 25) = 9

0.2x + 5 = 9
0.2x = 9 - 5
0.2x = 4
x = 4 / 0.2
x = 20

B . Because it explains their was 25 girls and some boys so you add x to the 25
(X+25)0.2= 9

WILL GIVE BRAINLIEST ASAP NEEDED PLS ANSWER HELPYou need to create a fenced Off region of Land for cattle to graze. The grazing area must be a total of 500 square feet surrounded by a fence and in the shape of a regular polygon within this grazing area the length of the apothem must be 10 feet long.

Part. 1 find the total perimeter of the grazing area
Part 2. if the cost of the fence is $7.95 per linear foot how much will it cost to place a fence around the entire grazing area?
Part 3 - suppose this grazing area is 1/60 of an industrial grazing area for major industry farm. What is the total cost to build a fence around the entire land of the large scaled farm

Use property of proportions
show all work

Answers

Answer:

$47,520

Step-by-step explanation:

the area of a polygon is/

A= perimeter X apothem /2

A=500

apothem = 10

500 = (P * 10)/2

P =100

B. 100*7.95 = $795

60*100= 6,000

6,000 * $7.95=

$47,520

the ratio of boys to girls in the class is 5:7. there are 36 children in the class. how many more girls then boys are there in the class?

Answers

x - the number of boys
y - the number of girls

The ratio of boys to girls is 5:7.
$(x)/(y)=(5)/(7) \n7x=5y \nx=(5)/(7)y$

There are 36 children in the class.
$x+y=36 \nx=36-y \n \nx=x \n(5)/(7)y=36-y \n(5)/(7)y+y=36 \n(5)/(7)+(7)/(7)y=36 \n(12)/(7)y=36 \ny=36 * (7)/(12) \ny=3 * 7 \ny=21 \n \nx=36-y=15 \n \n 21-15=6$

There are 6 more girls than boys in the class.

Silva set up a dog-walking buisness. He earned $60 in June. He is projected to earn 110% more in July. How much is Silvia projected to make in July?