Mathematics High School

Simplify the expression, show all of your work:
18 : 2.3
5 - 2

Simplify The Expression, Show All Of Your Work:18 : 2.35 - 2

Answers

Answer 1

Answer:

9

Step-by-step explanation:

Numerator:18 divided by 2=9       9 times 3= 27

Denominator:3

27/3=9

Related Questions

helpppp plss:)))))))
(the answer is not c though)​

Answers

A i believe I could be wrong

Suppose a study estimated that 61% of the residents of a community (with an
error range of 18 percentage points at 95% confidence) favor replacing the
playground equipment. Which of the following percentages of the
community's residents may favor replacing the playground equipment?

A. 82%
B. 54%
C. 72%
D. 95%

Answers

Finding the confidence interval, it is found that the percentages of residents that may favor replacing the equipment is be given by:

B. 54%.

What is a confidence interval?

The interval is given by the estimate plus/minus the margin of error. The range is twice the margin of error.

In this problem, we have that:

The estimate is of 61%.Since the range is of 18%, the margin of error is of 9%.

Hence the interval is given by:

(61% - 9%, 61% + 9%) = (52%, 70%).

Each of the values in the interval can be the percentage, hence option B is correct.

More can be learned about confidence intervals at https://brainly.com/question/15712887

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Someone help me please and no links!!!!! find the value of x

Answers

Answer:

x = 15

Step-by-step explanation:

37*2 = 74

360-74 = 286

286 = 2(9x + 8)

143 = 9x+8

135 = 9x

15 = x

Some parents will drive 17 children to summer camp. Each parent can fit 4 children in a car.
What is the fewest number of parents needed to drive all the children?

Answers

Answer:

5

Step-by-step explanation:

Steve will roll a number cube, numbered 1-6, twice. What is the probability of rolling a number greater than 4, then
rolling an odd number?

Answers

Answer:

6/36 or 1/6

Step-by-step explanation:

To find the probability of rolling a number greater than 4, then rolling an odd number, you must multiply the probability of rolling numbers greater than 4 by the probability of rolling an odd number. In numbers 1-6, there are two number greater than 4: 5 and 6. The probability of an event is the specific factor over the total amount of results or objects. The probability of rolling a number higher than 4 is 2/6, or 1/3. In numbers 1-6, there are 3 odd numbers: 1, 3, and 5. The probability of rolling an odd number is 3/6, or 1/2. 3/6 times 2/6 is 6/36, and when simplified, it becomes 1/6.

Find the percent change from the first value to the second 50;31

Answers

Answer:

-0.38%

Step-by-step explanation:

Divide 31 by 50. 31 / 50 = 0.62.

1 - 0.62 = 0.38

Since it is a decrease in change the percent change is negative.

-0.38%

Solve the equation by graphing. x^2-7x+12=0

Answers

Answer:

the answer is GH mm djmwshdnsnda

A sports company randomly sends out various cards of 8 different sports.




How could this simulation be used to determine the sport of the next 20 cards the company sends out?

a.
Survey 20 people about their favorite sport.

b.
Repeat the flipping the coin 3 times simulation 20 times.

c.
Repeat the drawing a marble simulation 20 times.

d.
Repeat the spinning a spinner simulation 20 times.

Answers

Answer:

D

Step-by-step explanation:

what is the domain and range of:
y=(x+5)^2

Answers

Answer:

Domain : R

Range : [0,+∞)

Find the solution for the system of equations using substitution.

Answers

Answer:

x= 7/3

Step-by-step explanation:

y=2x+5

5x-2=2x+5

transfer 2x to the left side and -2 to the right side you get

5x-2x=2+5

as it transfers the sign changes

3x=7

x=7/3

Need help getting the answer to the question below.

Answers

Answer:

.0065

Step-by-step explanation:

You move the decimal backwards 3 times

Answer:

The answer is 0.0065

Step-by-step explanation:

Hope it will help you...

Elisa asked random customers at two different stores in Austin

Answers

Answer:

That does to make sense...

Maybe extend the question

20/3=2(w+2/3)

What’s the value of w

Answers

Answer: w=8/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

20 /3 =2(w+ ( 2 /3 )

20 /3 =(2)(w)+(2)( 2 /3 )(Distribute)

20 /3 =2w+ 4 /3

Step 2: Flip the equation.

2w+ 4 /3 = 20 /3

Subtract 4/3 from each side: 2w+ 4 /3 − 4 /3 = 20 /3 − 4 /3

Divide both sides by 2: 2w/ 2 =16  3 /2

Answer w=8/3

Answer:

w=8/3

Step-by-step explanation:

Find the mean of the following data set
73, 81, 51, 76, 89, 95, 88

Answers

Answer:

[tex]mean = \frac{(73 + 81 + 51 + 76 + 89 + 95 + 88)}{7} \\ = 79[/tex]

Answer:

79

Step-by-step explanation:

What is mean?  The mean is the same as an average. To find the mean, add all the letters together. Then, divide this sum by the total amount of numbers.

Step One: 73+ 81+51 +76+ 89+ 95+88= 553

Step Two: Divide by numbers, in this case, there are 7: 553/7= 79.

There you go!

Please can someone please help me answer this question

Don't put links

I rlly need it

Answers

Answer:

1.10231131

Step-by-step explanation:

∠A and \angle B∠B are supplementary angles. If m\angle A=(2x+10)^{\circ}∠A=(2x+10) ∘ and m\angle B=(2x+2)^{\circ}∠B=(2x+2) ∘ , then find the measure of \angle A∠A.

Answers

Answer:767

hh

Step-by-step explanation:

ggfhgjgfhvff

h k

hgh j

gvjhg878

y7uy

8768

87

According to the graph, which of the following is true? Half of each day is taken up by sleeping and eating. School and homework take up over half of a day. The total time spent on chores and homework is greater than the amount of free time. The smallest part of a day is spent at school.

Answers

Answer:

Half of each day is taken up by sleeping and eating.

Step-by-step explanation:

Answer:

I had this question it was very easy it is C. The total time spent on chores and homework is greater than the amount of free time.

Step-by-step explanation:

I need ur Helppppp ASAP plssss

Answers

Answer:

50 I believe

Step-by-step explanation:

Sorry if I'm wrong!

Answer:

84.78

Step-by-step explanation:

Tansy has 4 different pieces of fruit in a bag . She pulls the pieces out one at a time. In how many different orders could tansy pull the fruit out of the bag

Answers

Answer:

24

Step-by-step explanation:

4!

! represents multiplying all the numbers behind

4*3*2*1=24

Use the distributive property to simplify each expression.
(-5d + 1) (-2)

Answers

Answer: 10d-2

Step-by-step explanation:

Answer:

10d - 2

Step-by-step explanation:

Multiply each term inside parentheses by -2, separately:

10d - 2 (answer)

Please please ASAP ASAP please ASAP thank you so much please
No links or files please

Answers

Answer:

(0, 3)

Step-by-step explanation:

Y axis changes and x axis stays the same

Suppose the circumference of a circle is 6 pi. What is its diameter?

Answers

Answer:

the ans is 12

Step-by-step explanation:  

C= RadiusxPi  

Radius=6  

D=Rx2  

D=12

(hope this helps can i plz have brainlist :D hehe)

If you were asked to round the number 9.6173 to the nearest hundredths place, how many digits would you have after the decimal point?

Answers

You would have 2 numbers after the decimal so it would become 9.62 because you would round up the 1 to 2 because there is a 7 after it

Answer: I don't think you would move it

Step-by-step explanation: let me know if I'm wrong

The population of village increases by 2% every year. The current population is 1000. What will be the population after 2 years?

Answers

Answer:

1040 approx

Step-by-step explanation:

Given data

Rate = 2%

Population= 1000

Time = 2 years

We can apply the expression below to find the population after 2 years

A= P(1+r)^t

Substitute

A= 1000(1+0.02)^2

A=1000(1.02)^2

A=1000*1.0404

A=1040.4

Hence the population is 1040 approx

Question 11
125
C
15
Oo
$15
I’m

Answers

Answer:

Yes, the answer you chose is correct.

Sam is a cashier at the local grocery store. He earns $8/hr and works there 10 hours per
week. Every week, he puts 75% of his money in a savings account so he can reach his goal
of having $1,000 as an emergency fund. School is starting in a few weeks and he wants to
buy some new supplies including a backpack, pens and notebooks, and more. He
estimates the total will be about $75.
T

Answers

Answer:

A. $80

B. $60

C. 4 Weeks

D. Sam might have to work more at his work or possibly lower the amount of money he needs to save.

Step-by-step explanation:

Hope this Helps!!

The number of weeks taken by Sam to save enough money is 17 weeks.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

a) Money Sam earns in one week = Money paid per hour * Number of hours per week

= 8×10

= $80

b) Money saved every week is

75% of 80

= 75/100 ×80

= 0.75×80

= $60

c) He can reach his goal of having $1,000 as an emergency fund.

Let the number of weeks taken by Sam to save enough money be x.

Now, 60x=1000

x=1000/60

x=17 weeks

d) School is starting in a few weeks and he wants to buy some new supplies including a backpack, pens and notebooks, and more.  

He estimates the total will be about $75.

So, Sam has to work one week extra to purchase his needs for school.

Therefore, the number of weeks taken by Sam to save enough money is 17 weeks.

To learn more about the percentage visit:

brainly.com/question/24159063.

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Find the GCF of 4x3and7x5

Answers

Answer:

GCF of 4 x 3 should be 1

GCF of 7 x 5 should also be 1

Hope this helps, and sorry if it is incorrect, there isn't very much context to this question!

Solve the linear equation: 5 - x = (x/2)

Answers

Hi

5-x = (x/2)

5 =  (x/2) +x

10 = x+2x

10 = 3x

10/3 = x  

let's check :  

5- 10/3 =  15/3 -10/3 = 5/3

(10/3) /2  =10/3 * 1/2 = 10/6 = 5*2/3*2 = 5/3  

Taylor had a bag of 28 marbles. 5 red, 9 blue, 8 yellow, and 6 black. If Taylor pulled out a yellow one and DID NOT put it back in. What is the
probability of pulling out a blue marble (SIMPLIFY YOUR FRACTION).
Blank 1:
Blank 2:

Answers

Answer: 1/3

Step-by-step explanation:

Number of red marbles = 5

Number of blue marbles = 9

Number of yellow marbles = 8

Number of and black marbles = 6

Total number of marbles = 28

If Taylor pulled out a yellow one and didn't replce it, there'll be 27 marbles left since one has been removed, then the probability of picking blue marbles will be:

= Number of blue marbles / Total marbles

= 9 / 27

= 1/3

The probability of picking a blue marble is 1/3.

Branliest For Correct answer
Please I need help
Factor Completely

a^2 - a - 20

Answers

Answer:

[tex]\left(a+4\right)\left(a-5\right)[/tex]

Step-by-step explanation:

Break the expression into groups.

=(a^2+4a)+(−5a−20)

Factor out a from a2+4a:     a(a+4)

Factor out −5 from −5a−20:     −5(a+4)

=a(a+4)−5(a+4)

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