out of the 25 students in Mrs.Green's class 19 have a pet What percent of the students in Mrs.Green's class have a pet

Answers

Answer 1

Answer: $method\ \#1\n\n(19)/(25)*100\%=(19*4)\%=\boxed{76\%}\n\nmethod\ \#2\n\n \begin{array}{ccc}25&-&100\%\n\n19&-&p\ \%\end{array}\ \ \ |cross\ multiply\n\n\n25\cdot p=100\cdot19\n25p=1900\ \ \ \ \ |divide\ both\ sides\ by\ 19\n\boxed{p=76\ (\%)}$

Answer 2

Answer:

Final answer:

To find the percentage of students in Mrs. Green's class having a pet, divide the number of students with pets by the total number of students and multiply by 100. Therefore, 76% of the students in Mrs. Green's class have a pet.

Explanation:

This question involves the concept of percentage in mathematics. To find out what percent of students in Mrs.Green's class have a pet, you can follow these steps:

Identify the total number of students which is 25.
Identify the number of students who have a pet which is 19.
Divide the number of students with pets by the total number of students: 19 ÷ 25 = 0.76.
Now, to convert this number into a percentage, multiply it by 100: 0.76 × 100 = 76%. So, 76 percent of the students in Mrs.Green's class have a pet.

Learn more about Percentage here:

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A driveway is 81 ft. long, 6 ft. wide and 4 inches deep. How many cubic feet of concrete will be required for the driveway

Answers

The equation for volume is v = length x width x height. We are given all of these, however one of the measurements is in different units than the others, so we need to convert the units before we do our multiplication...

4 inches x 1 ft / 12 in = 4/12 = 1/3 ft

Now we can multiply our equation...

v = length x width x height
v = 81 x 6 x 1/3
v = 486/3
v = 162 cubic feet

First the units must all be in feet.
4 inches has to be converted to feet
4 inches x 1ft/12 inches = 4/12 ft = 1/3 ft

The driveway is a rectangular prism.
Area = length x width x height
Area = 81 ft x 6 ft x 1/3 ft = 162 cubic feet

Multiply 2/3 by 42,and then multiply that by that product by 10.

Answers

Answer:

280

Step-by-step explanation:

2/3 x 42=28

28 x 10 = 280

your answer is 280

2/3 x 42 = 28

28 x 10 = 280

How do you solve p+9 <7 AND graph it???

Answers

$p+9 <7 \n \np< 7-9\n \n p < -2 \n \n Answer: \ x \in(-\infty ,-2)$

1)You add 9 to both side; so you subtract 9 from nine which leaves you 0

2)you subtract 9 from the other side, because you have to do the same things to both sides. so you get 7-9. Which equals -2.

3) you're equation will look like : p<-2

A rectangle has a perimeter of 68 inches it’s length is 2 inches less than 3 times the width what is the area of the rectangle

Answers

Answer:

225 inches²

Step-by-step explanation:

Let the length be l and width be w

Condition 1

2l+2w=68 (Perimeter=68)--------(i)

Condition 2

l=3w-2 ---------(ii)

Putting equation (ii) in (i)

2(3w-2)+2w=68

6w-4+2w=68

8w-4=68

8w=68+4

8w=72

dividing both sides by 8

w=9 inches

now putting w=9 in (ii)

l=3(9)-2

l=27-2

l=25 inches

Now

Area of rectangle = l × w

=9 × 25

=225 inches²

Answer: Length = 25 in., width = 9 in.

Step-by-step explanation:

took the quiz in K12

terrell has a water purifier for backpacking. it will purify 1 liter of water in 1 min. how long would it take terrell to purify enough water for 4 canteens that each hold 750 mL, and two that each hold 1.5 L