A survey shows that three out of every five teenagers at a particular school with cell phones use text messaging. In a group of 90 teenagers, how many would you expect use text messaging? 34 54 56 150​

Answers

Answer 1

Answer:

Out of a group of 90 there would be 54 messaging  

Step-by-step:

messaging is a weird word


Related Questions

Gentry Industries has the following information about maintenance costs in the past six months.
Month Machine _Hours Amount
January 200 $2,800
February 350 3,000
March 450 4,000
April 500 5,000
May 600 5,200
June 580 5,800
How much would Gentry pay if maintenance machine hours are 550?

Answers

Answer:

Total cost= $5,425

Step-by-step explanation:

Giving the following information:

Month Machine _Hours Amount

January 200 $2,800

February 350 3,000

March 450 4,000

April 500 5,000

May 600 5,200

June 580 5,800

First, we need to calculate the fixed and variable costs. To do it, we will use the high-low method:

Variable cost per unit= (Highest activity cost - Lowest activity cost)/ (Highest activity units - Lowest activity units)

Variable cost per unit= (5,800 - 2,800) / (600 - 200)

Variable cost per unit= $7.5 per hour

Fixed costs= Highest activity cost - (Variable cost per unit * HAU)

Fixed costs= 5,800 - (7.5*600)

Fixed costs= $1,300

Fixed costs= LAC - (Variable cost per unit* LAU)

Fixed costs= 2,800 - (7.5*200)

Fixed costs= $1,300

Now, we can determine the total cost for 550 hours:

Total cost= 1,300 + 7.5*550

Total cost= $5,425


5
7

2
+
7

=
1
1
1

Answers

Answer:

Step-by-step explanation:

57-2=55

55+7=62

it does not equal 111

3x-7 if x =6 i need help plz

Answers

11 because 3 x 6 is 18 then minus 7 makes it 11

11

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

How many lines of symmetry does a trapezoid have

Answers

Uhhhh 0 I think ....

Brandon treated his friends to lunch which cost him $32.60. He left a 20% tip for the waitress. How much was his total bill including tip?

Answers

Answer:

39.12

Step-by-step explanation:

First you find 20% of 32.60

32.6 * 20/100

32.6 * 0.2

= 6.52

So the tip is $6.52

Add the tip and the regular cost

32.60 + 6.52 = 39.12

$39.12 is the total amount he paid

I double checked and that answer is correct. The total including 20% tip is $39.12 :)

Blakes goes from averaging 8 hours of sleep for a school night to averaging 6.5 hours of sleep on the weekend. What is the percent of change in the average hours of his sleep? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK. DO NOT BOTHER ANSWERING IF YOU DO NOT TELL ME HOW YOU GOT YOUR ANSWER!!)
A. 36
B. 70
C. 1/462
D. 6(4X+3Y-2)
E. 18.75
F. 23.36
G. 2.54
H. 36.3
I. 6(4X-3Y+2)

Answers

Answer:

Step-by-step explanation:

So Blakes sleep 8 hours per night during the school day

8 hours/night...................................100%

6.5 hours/night...................................?

6.5*100/8=81.25

the change in percentage is 100-81.25=18.75%

the percentage change is 18.75

if it is easier for you, another method is:

8-6.5=1.5 subtract the original amount to the new amount

1.5/8=0.1875 divide by the original amount

0.1875*100=18.75 find the percentage

The measure of the complement of a 69° angle is

Answers

90-69=21

it is 21 degrees

A box of cereal contains 16 cups. If each bowl holds 1 1/3 cups of cereal, how many bowls of cereal will you get out of the box?

Answers

Answer:

the answer is 12

Step-by-step explanation:

Victor has some model planes. Last weekend, Victor and his grandfather built four more model planes to add to his collection. Now Victor has a total of 42 model planes.

Part A: In the first box, enter an equation to represent the number of planes, x, Victor originally had.

Part B: In the second box, enter the number of planes represented by x in this situation.

Answers

Answer:

x = 42 - 4

x = 38

Step-by-step explanation:

Given that :

Initial number of plane models = x

Number of additional models built = 4

Total number of planes = 42

Total = initial amount + additional amount

42 = x + 4

Make x the subject

42 - 4 = x + 4 - 4

x = 42 - 4

X + 4 = 42

X = 42 - 4

X = 38

in a box of colored light, 1/2 of the light are red, 1/3 of the light are blue, and 1/6 lf the lights are green. the number of lights in the box is greater than 10. what ia the smallest number of lights that could be in the box?

Answers

Answer:

Step-by-step explanation:

Consider the expression.
6 · 60 · 6–3
Which statements are true about the expression? Check all that apply.
The 6 without an exponent is equivalent to the 6 having a 0 exponent.
The sum of the exponents is 2.
Multiply the exponents to simplify the expression.
The expression has a value of StartFraction 1 Over 36 EndFraction.
An equivalent expression is 65 · 6-7.

Answers

Answer:

4. The expression has a value of 1/36 . True

5. An equivalent expression is (6)^5. (6)^- 7  True

Step-by-step explanation: Not true. The 6 without an exponent is equivalent to the 6 having a 0 exponent.

Any number having an exponent zero has a value equal to 1.

6 · (6)^0 · (6)^–3

= 6.1.1/216

= 1/36

= (6)^-2

2. The sum of exponents is 2.  

False ( the sum of exponents is -2)

3.Multiply the exponents to solve the expression .

False when the bases are the same the exponents are added or subtracted.

4. The expression has a value of 1/36 .

True

5. An equivalent expression is (6)^5. (6)^- 7

True

the correct answers are D and E. I just got this right. hope it helps

Will mark brainliest!!

The graph shows Wilson's science scores versus the number of hours spent doing science homework.



What will most likely be Wilson's approximate science score if he does science homework for 6 hours a week?

33 points
42 points
52 points
55 points

Answers

Answer:

55 points

Step-by-step explanation:

equation is close to y = 7.1x + 15

y = 7.1(6) + 15 comes closest to 55

Which of the following words can be used to describe the triangle?


Answers

Answer:

It's a because an isosceles is a triangle!

150 into the ratio 4:11

Answers

9514 1404 393

Answer:

  40 : 110

Step-by-step explanation:

There are a number of ways you can go at this. One of my favorite is to consider the value of a "ratio unit." Here, a total of 4+11 = 15 "ratio units" represent the total to be divided: 150. So the value of each one is ...

  150/15 = 10

Then the division is ...

  4 : 11 = 10·4 : 10·11 = 40 : 110

_____

Alternate solution

Let x represent the larger share. Then the ratio is ...

  (150 -x) : x = 4 : 11

Cross-multiplying gives ...

  11(150 -x) = 4x

  1650 = 15x . . . . . add 11x, simplify

  110 = x . . . . . . . . . divide by 15; the larger share

  150-x = 150-110 = 40 . . . . . . the smaller share

The division is 40 : 110.

Write the word sentences as an inequality.

A number b is at least -3.

An inequality that represent this word sentences is?

Answers

b >_ -3
the inequality is supposed to be the greater than or equal to

Answer:

b >= -3

Step-by-step explanation:

The b is at least meaning that it can also be equal to -3.

g An orange juice producer buys oranges from a large orange grove that has one variety of orange. The amount of juice squeezed from these oranges is approximately normally distributed, with a mean of 4.70 ounces and a standard deviation of 0.40 ounce. Suppose that you select a sample of 25 oranges. a. What is the probability that the sample mean amount of juice will be at least 4.60 ounces

Answers

Answer: An orange juice producer buys oranges from a large orange grove that has one variety of orange. The amount of juice squeezed from these oranges is approximately normally distributed, with a mean of 4.70 ounces and a standard deviation of 0.40 4. ounce. hope i helped

Step-by-step explanation:

A company is expanding its building area from 13,500 square feet to 19,440 square feet. What is the percentage increase of the area of the building space?
A.
4.4%
B.
44%
C.
59.4%
D.
56%

Answers

B 44% lock it in. Yes it is right

12. Suppose a reward for a CS follows a probabilistic schedule. If the probability of receiving the reward increases then: a) firing will increase for CS and increase for US b) firing will increase for CS and decrease for US c) firing will decrease for CS and decrease for US d) firing will decrease for CS and increase for US e) none of the above; firing will remain unchanged for CS and US

Answers

Answer:

d) firing will decrease for CS and increase for US

Step-by-step explanation:

The is the answer going by the probabilistic nature of the schedule. That is, as the probability of relieving reward increase has a direct effect on the CS leading to its decrease as well as a proportional increase for US. On the other hand, a decrease of probability of receiving reward will have an opposite effects on the schedule.

A student started out poorly on his first mathematics test. However, he doubled his score on each of the next two tests. The third test grade was 100. What was the student’s average test grade? Round to the nearest tenth.

Answers

His score is 50

How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3

Simplify
8sqrt48-6sqrt75+7sqrt80

Answers

Answer:

2[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

Step-by-step explanation:

= 8 [tex]\sqrt{16}[/tex][tex]\sqrt{3}[/tex] - 6[tex]\sqrt{25}[/tex][tex]\sqrt{3}[/tex] + 7[tex]\sqrt{16}[/tex][tex]\sqrt{5}[/tex]

= 8(4)[tex]\sqrt{3}[/tex] - 6(5)[tex]\sqrt{3}[/tex] + 7(4)[tex]\sqrt{5}[/tex]

= 32[tex]\sqrt{3}[/tex]  - 30[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

= 2[tex]\sqrt{3}[/tex] + 28[tex]\sqrt{5}[/tex]

Please help. Find the value of x. Round to
the nearest tenth.
Enter the number that belongs in
the green box

Answers

Answer:

[tex]x =13.7[/tex]

Step-by-step explanation:

Given

See attachment

Required

Find x

The relationship between x, 47 and [tex]17^{\circ}[/tex] is:

[tex]sin(17^{\circ}) = \frac{x}{47}[/tex]

i.e.

[tex]sin(\theta) = \frac{Opposite}{Hypotenuse}[/tex]

Solving further:

[tex]sin(17^{\circ}) = \frac{x}{47}[/tex]

Make x the subject

[tex]x = 47 * sin(17^{\circ})[/tex]

[tex]x = 47 * 0.2924[/tex]

[tex]x =13.7428[/tex]

[tex]x =13.7[/tex] --- approximated

Which is a true statement?

Answers

Answer:

A

Step-by-step explanation:

-18 is an integer and a whole number

There are 31 students in a class.
The only languages available for the class to study are French and Spanish.
17 students study French.
15 students study Spanish.
6 students study neither French nor Spanish,
Using a Venn diagram, or otherwise, work out how many students study only one
language.

Answers

Answer:

24 students where studying one language

Step-by-step explanation:

In how many different ways can you divide the shape to get the same number and type of shapes you obtained in part A?

Answers

Answer:

There are two ways of decomposing these shapes, Into two rectangles and one triangle!

Step-by-step explanation:

Just did this on EDMENTUM you got thiss!

Dont forget to eat a brownie! <3

Answer:

There are two ways of splitting the shape into two rectangles and one triangle.

Step-by-step explanation:

HELP ME I need help with a 7th grade math test anyone willing to help me

Answers

Answer: A: x= -3 B: x= 7/3 C: x= 11/2 D: 58 1/3

for the first 4 questions

For #5 the red ones slope is -2 and the y-Int is 1. For the blue one the slope
Is 1/2 and the y-int is 3. And for the green one the slope is -2/3 and the y-Int is -4

Pls help me this is 7th grade (ADVANCED)

Answers

Answer:

it  (6,18,23)

Step-by-step explanation:

5÷480 I’m trying to figure this out but when I get my answer it has a remainder

Answers

Answer:

The answer is 96.

Step-by-step explanation:

5 goes into 48, 9 times. 48 minus 45 is 3, bring down the zero to get 30. 5 goes into 30 6 times. So 30 minus 30 equals zero.

Jack is growing Red wiggler worms to help make compost. He measured the lengths of two young worms. The 10- day old worm is 10/12 inch long. The 20-day old worm is 1 4/6 inches long. About how much longer is the 20- day old worm than the 10-day old worm? Explain how you found your estimate. 1

Answers

Answer:

Answer: The 20-day old worm is inches more longer than the 10-day old worm. If someone says the same thing as me, they copied me—

Step-by-step explanation:

can i get a brainliest-?

In addition to his hourly rate, Mr. Smith is paid $2.20 for each watch he fixes. Write an expression for his income if he fixes r watches per hour?9.5 is hourly rate.

Answers

Step-by-step explanation:

y = hourly income

r = number of watches fixed

equation: y = 2.20r + 9.5

Andre has a puppy that weighs 9 pounds the vet says the puppy is now at 30% of its adult weight what will the adult weight of Andres puppy be

Answers

30% times by x is 9. (x is the number we’re trying to figure out) another way to put this equation is 30/100 times x = 9. now let’s multiply both sides by 100 and divide both sides by thirty. we have x = 9 times 100/30. so the answer is 30. the puppy’s full weight is 30 pounds. hope this helps :)

The adult weight of the puppy of Andre puppy be 30 pounds.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Andre has a puppy that weighs 9 pounds.

The vet says the puppy is now at 30% of its adult weight.

Let n pounds be the weight of an adult.

Using the percentage formula,

9 = 30 x n /100

n = 900/30

n = 30 pounds

Therefore, adult puppy weight is 30 pounds.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ2

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