5. Rebecca is 6 years older than three times Andrew's age. The sum of their ages is 18. How old is Rebecca?

Answers

Answer 1

Answer:

Rebecca is 18

Step-by-step explanation:

18/6-3=0


Related Questions

Find the value of the expression: -35 / 7

Answers

Answer:

-5

Step-by-step explanation:

-5 is the answer i promise

What are the next three numbers in this pattern
11,22,12,23

Answers

Answer:

2,1,and 3????

Step-by-step explanation:

i really dunno if i am right always happy to help <3 have a nice day

3.Write two polynomial functions whose quotient will be the same degree
as the divisor.
4.Write two polynomial functions whose quotient will have a degree of
zero.

Answers

Answer:0

Step-by-step explanation:

its right

Need a answer for that question, please?

Answers

Answer:

X is 70 degrees

Step-by-step explanation:

Answer:

X is 70 degrees

Step-by-step explanation:

all triangles and straight lines are up to 180 degrees so

180-120=60

we now have 2 angles, so now we need to subtract from 180 to get the missing number

180-60-50=70

A coal company wants to determine a 95% confidence interval estimate for the average daily tonnage of coal that it mines. Assuming the company reports that the standard deviation of daily output is 200 tons, how many days should it sample so that the margin of error will be 39.2 tons or less?

Answers

Answer:

It should be 100 days sample so that the margin of error will be 39.2 tons or less

Step-by-step explanation:

We are given that A coal company wants to determine a 95% confidence interval estimate for the average daily tonnage of coal that it mines.

[tex]\alpha = 0.05[/tex]

To Find two tailed critical value using Z table

[tex]Z_{\frac{\alpha}{2}}=Z_{\frac{0.05}{2}}=\pm 1.96[/tex]

Margin of error = ME = 39.2

[tex]\sigma = 200[/tex]

Formula : [tex]n = (\frac{Z_{\frac{\alpha}{2}} \times \sigma}{ME})^2[/tex]

[tex]n = (\frac{1.96 \times 200}{39.2})^2[/tex]

n=100

Hence it should be 100 days sample so that the margin of error will be 39.2 tons or less


What will a $210,000 house cost 10 years from now if the inflation rate over that period averages
%3 compounded annually? $282, 222.44

Answers

The cost of the house 10 years from now in the case when inflation rate should be 3% is $282,222.44.

Calculation of the cost of house:

Since

The house cost is $210,000

The time period is 10 years

And, the rate of interest is 3%

So,

[tex]= \$210,000 \times (1 + 0.03)^{10[/tex]

= $282,222.44

Hence, The cost of the house 10 years from now in the case when inflation rate should be 3% is $282,222.44.

Learn more about cost here: https://brainly.com/question/13295042

Subtract.

1 2/5−(−3/5)

Enter your answer, in simplest form, in the box.
HELP PLEASE CYRIN RN :'( \_(-_-)_/

Answers

Since you’re doing minus a negative, just switch it to plus, and turn that mixed fraction into an improper fraction so
7/5+3/5=10/5
10/5=2/1=2
Your answer is 2

Emma pays $108 every six weeks for tennis lessons. What is the price per year?

Answers

Answer:

The price per year would be $936.36

Step-by-step explanation:

there's a 52 weeks in a year, so divide it by 6 then multiply it by 108.

52/6= 8.67

8.67×108= $936.36

936.36 is the correct answer

help me out please i need help with this​

Answers

Answer:

8

Step-by-step explanation:

36/4.5

Answer: 8

4 1/2 = 4.50

36 divided by 4.50 = 8

An online t-shirt store is having a sale. The original price of each t-shirt is p dollars. The store sells 20 t shirts and earns a total of (20p - 60) dollars.

A. Factor the expression using the GCF
20p - 60 =

B. The discount per t-shirt is $

Answers

20 (p-3) is the anwser

A large ladder leans against a house with the base of the ladder 5.8 horizontal feet from
the base of the house. If the ladder has a slope of 3.3 feet per foot, at what height does the top of the ladder meet the house? (Round your answer to two decimal places.)
=_______ft

Answers

Answer:

At 19.14 feet the top of the ladder meet the house.

Step-by-step explanation:

It is given that,

A large ladder leans against a house with the base of the ladder 5.8 horizontal feet from  the base of the house.

Slope of the ladder, m = 3.3 feet/foot

We need to find at what height does the top of the ladder meet the house. Let it is h.

Base, b = 5.8 feet

It will form a right angle triangle

Slope=h/base

h = slope × base

h = 3.3 × 5.8

h = 19.14 feet

So, at 19.14 feet the top of the ladder meet the house.

find the two angles measures from the diagram 7x+9 5x+3 there's 3 answers 1. 73 and 73 2. 107 ,107 3.107 and 73 this is so confusing WILL GIVE BRAINEST ​

Answers

Answer:

107 and 73

Step-by-step explanation:

supplementary angle

7x + 9 + 5x + 3 = 180

12x = 180 - 3 - 9

x = 168 / 12

x = 14

plugin x=14 into the equation

= 7x + 9

= 7(14) + 9

= 107°

plugin x=14 into the equation

= 5x + 3

= 5(14) + 3

= 73°

write 562,789 in word form

Answers

Answer:

Five hundred sixty two thouand, seven hundred eighty nine

Step-by-step explanation:

Need help with these find x and y of this figure

Answers

Just follow the rules that you learn. You need those for the SOL

Please help answer this ;)!

Answers

ANSWER: DFE= 132


Right here I put the steps for the answer!

The figure shows what appears to be obtuse triangle A B C with obtuse angle C. Point D is on side A B. Single tick marks pass through segments A D and D B. Point E is on side B C. Double tick marks pass through segments B E and E C. Point F is on side C A. Triple tick marks pass through segments C F and F A. Segment F D is drawn and has length 4. Segment E D is drawn and has length 6.4.

Answers

Answer:

Your answer is 8 units. :)

The measure of the side AC from the given triangle ABC is 12.8 units and the measure of the side BC from the given triangle ABC is 8 units.

Write an equation passing through the point (-3,1) that is parallel to y=2x+5

Answers

Answer:

Step-by-step explanation:

y - 1 = 2(x + 3)

y - 1 = 2x + 6

y= 2x + 7

Evaluate the expression 52 – 3x when x = 17. Then, select the option that completes this sentence:



The result is a whole number that is:
A. a prime number.
B. a composite number.
C. a whole number that is neither prime nor composite.
D. not a whole number.
Please Help!!! T~T

Answers

Answer:

it's c. "a whole number that is neither prime nor composite."

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation: Example 52-3x and if x equals 17  then it would convert to 52-17=35 which this is nor prime nor composite

HOPE THIS HELPED!

The world population at the beginning of 1980 was 4.5 billion. Assuming the population continued to grow at the rate of approximately 1.3% per year, find a function Q(t) giving the population of the world (in billions) as a function of time t (in years)

Answers

Answer:

The function Q(t) = 4.5 billion (1.013)^t will give the population in t years

Step-by-step explanation:

Here, we want to write a function

The growth percentage is 1.3% = 1.3/100 = 0.013

The function Q(t) will be an exponential function and it will be represented as;

Q(t) = I ( 1 + r)^t

where I is the initial world population at 1980 = 4.5 billion

r is the growth percentage = 1.3% = 0.013

t is the time in years

Substituting these values, we have;

Q(t) = 4.5 billion (1 + 0.013)^t

Q(t) = 4.5 billion (1.013)^t

Please someone answer this for me

Answers

The answer is A. The ratios of the corresponding sides are same, so they are similar

4x+ 2/3y= 20 solve for y

Answers

Answer:

y=-6s+30

Step-by-step explanation:

tristians parents bought a new house that was 2255 square fee. the price per square foot was 98 dollars. How much did they pay for the house

Answers

Answer:

$220,990

Step-by-step explanation:

Answer:

Step-by-step explanation:

220,990

Write an equation that gives the amount of snow that has fallen after x hours at this rate. (Use the form y=kx)

PLZ HELPPPP

Answers

Answer:

Y=2x

Step-by-step explanation:

The complete table is given as follows -

Time (in hours)                        Snow (in inches)

0                                                      1

1                                                       2

2                                                      4

6.5                                                  13

[x]                                                   [2x]

The equation that shows the amount of snow that has fallen after [x] hours can be written as y = 2x

What is the general equation of a Straight line?

The general equation of a straight line is -

[y] = [m]x + [c]

where -

[m] is slope of line which tells the unit rate of change of [y] with respect to [x].

[c] is the y - intercept i.e. the point where the graph cuts the [y] axis.

The equation of a straight line can be also written as -

Ax + By + C = 0

By = - Ax - C

y = (- A/B)x - (C/A)

Given is that snow Is falling steadily such that after 2 hours, 4 inches of snow has fallen.

In 2 hours 4 inches of snow has fallen.

Then, in 1 hour → (4/2) → 2 inches of snow has fallen.

So, in 6.5 hours → 2 x 6.5 → 13 inches

Hence, in x hours2x inches

The complete table is shown below

Time (in hours)                        Snow (in inches)

0                                                      1

1                                                       2

2                                                      4

6.5                                                  13

x                                                      2x

The equation that shows the amount of snow that has fallen after [x] hours can be written as -

y = 2x

Therefore, the complete table is given as follows -

Time (in hours)                        Snow (in inches)

0                                                      1

1                                                       2

2                                                      4

6.5                                                  13

[x]                                                   [2x]

The equation that shows the amount of snow that has fallen after [x] hours can be written as y = 2x

To solve more questions on straight lines, visit the link below-

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[Refer to image for complete question]

Nate walks 11 miles in 4 hours. At what unit rate does Nate walk?
A.
4 hours
11 miles
B.
4 miles
11 hours
C.
11/4 miles
1 hour
D.
11 miles
4 hours

Answers

Answer:

2 3/4 C

Step-by-step explanation:

multiply 4 two times and you will get 2 as your hole number and 3 as you numerator and 4 as your denomater

Annie bakes cookies and cupcakes in a ratio of 2 to 7 for her gift boxes. Her school needs 36 desserts to sell in a bake sale. How many cupcakes will she bake? How many cookies will she bake ?

Answers

Answer:

8 cookies and 28 cupcakes

Step-by-step explanation:

[tex]2+7=9\\36/9=4\\[/tex]

[tex]2[/tex] × [tex]4=8[/tex]

[tex]7[/tex] × [tex]4=28[/tex]

[tex]8+28=36[/tex]

sans and papyrus are making spaghetti
sans used 90% of the cheddar
and papyrus used the other 10%
how much are they using to make the spaghetti

Answers

Answer:

100%

Step-by-step explanation:

90+10=100

Answer:

Step-by-step explanation:

Oh god that’s 100% of the cheddar bag used! PAPYRUS NO THATS TOO MUCH YOULL RUIN UR SPAGHETTI AND SANS UR NOT HELPING. Oh god what if Sans sabotaged his spaghetti... It’s either that, or a more logical explanation: Sans used 90% of the cheddar to flavor his ketchup, while Papyrus was left with the last bit for his spaghetti...?

Papyrus: I am now going to make one of my famous spaghetti dishes with not 10%, but 20% cheddar! Sans! Give me the cheese bag!

Sans: Sure, bud. *hands over 10% of cheddar left in bag*

Papyrus: This... this is only 10% though... now I can’t make my soon to be famous 20% cheese spaghetti... OH MY GOD THIS IS A DISASTER

One like = giving Papyrus that last 10% he needs for his famous spaghetti

Solve the inequality 4(x+1)<4x+3

Answers

Let's solve your inequality step-by-step.

4(x+1)<4x+3

Step 1: Simplify both sides of the inequality.

4x+4<4x+3

Step 2: Subtract 4x from both sides.

4x+4−4x<4x+3−4x

4<3

Step 3: Subtract 4 from both sides.

4−4<3−4

0<−1

Answer:

There are no solutions.

Answer: no solution

Step-by-step explanation:

is the ratio of chocolate to ice cream comes in a book is 5:8 and the number of chocolate is 30 find the number of ice cream cones​

Answers

Answer:

48

Step-by-step explanation:

Answer:48

This is because I know that 5 times 6 is 30 so I would just have to do 8 times 6 which is 48

Complete the following statement. Use the integers that are closest to the number in the middle.
Attachment Below

Answers

-1 and -6

hope this helped!

Answer:

-1 and 6

Step-by-step explanation:

i hope this help you

the trans-global shipping company has been forced to lay off some workers due to a decrease in revenue. last year the company had to lay off 75 people so far this year they had to lay off 20% more employees than last year how many have been laid off this year

Answers

Answer:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Step-by-step explanation:

The required number of employees being laid off is 90.

What is percentage?

A percentage is a value that indicates 100th part of any quantity.

A percentage can be converted into a fraction or a decimal by dividing it by 100.

Given that,

The number of employees laid off last year was 75.

The percentage increase in laid off  for present year is 20%.

The number of employees laid off can be calculated as follows,

75 + 20% of 75

= 75 + 20/100 × 75

= 75 + 15

= 90

Hence, the number of employees laid off in the present year is 90.

To know more about percentage click on,

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