Mathematics High School

Colin is 9 years older than Richard. David is 12 years younger than Richard. If the total of their ages is 93, how old is the eldest of them?

Answers

Answer 1

Answer: The eldest, Colin, is 41 years old

Step-by-step explanation:

Related Questions

Some one pls help me with this

Answers

Answer:

JKL=127°

BEF=63°

m 1=90°

CBY=66°

Step-by-step explanation:

JKL:

the two lines are parallel and cut by one line so the corresponding angles just be the same.

BEF:

(7x-14)=4x+19

add 14 to each side

7x=4x+33

subtract 4x from each side

3x=33

divide each side by 3

x=11

implement that into 4x+19

4(11)+19

44+19

m 1:

Since the congruent angles is 90 and 90 + m 1= 180° the m 1 has to be 90°

3x+9+6x=180 since they are corresponding angles on a parallel line and corresponding angles must equal 180° in total

9x+9=180

subtract 9

9x=171

divide each side by 9

x=19

3(19)+9

66°

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Pls help! I’ll give brainliest!

A = ___ ??

B = ___ ??

Answers

Answer:

A:80 B:30

Step-by-step explanation:

Help plz I don’t know math

Answers

Answer: 9x + 6y = 234

Step-by-step explanation:

Answer:

234

Step-by-step explanation:

it makes more sense then the others

.∠ZTS and ∠NRQ are supplementary. m∠ZTS = (5x − 3)° and m∠NRQ = (2x + 1)°. Find the measure of each angle.

Answers

Well it’s simple really

We make

ZTS + NRQ = 180

5x - 3 + 2x + 1 = 180

7x - 2 = 180

7x = 182

x = 26

And then you plug in 26 for the value of x for both angles

ZTS = 5(26) - 3 = 127
NRQ = 2(26) + 1 = 53

anyone know the answer to this? Ill give brainliest!!!

Answers

The answer is y=-4x-4

what is 13/30 divided by 17,can anyone please help me

Answers

Answer:

13/510

Step-by-step explanation:

The answer is 13/510 because 17 as a fraction is 17/1 and when dividing you switch the fraction upside down which makes it 1/17 and 13/30 times 1/17 is 15/510.

Answer: guess what the guy on top said u can caculate it btw

Step-by-step explanation:

Find k(3) for the function k(n) =2n²

Answers

Answer:

k(3) = 18

Step-by-step explanation:

k(n) = 2n²

k(3) = 2 * (3)²

k(3) = 2 * 9

k(3) = 18

The answer is k(3) is 18

what is 0.3, 2., 0.321, 2.52 ordered from least to greatest

Answers

Answer:

0.321 ,0.3 ,2, 2.52

Step-by-step explanation:

Pay attention in class child

Answer:
0.3, 0.321, 2, 2.52

Explanation:
Not sure how to explain, but it’s correct.

a) A circle has radius 4.6 cm
Work out the length of the circumference.
Give your answer to 1 decimal place.
(3)
+
I
b) A circle is shown with centre O.
(1)
The shaded area is a
of the circle.
O

Answers

Answer:

So we know the formula is 2 x pie x r, and now we have a radius of 4.6. 4.6 x 2 = 9.2 9.2 x 2 = 18.4

Step-by-step explanation:

Please help me, it’s small please

Answers

It’s d 11 I think that’s right

Which point best represents V68?
A)
point A
B)
point B
point
D)
point D

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

square root of 68 is 8.246

Rose normally pays $118.00 for an airplane ticket to visit her parents. The airline company is offering a 15% discount. How much is the discount? A) $17.70 B) $1.77 C) $2.70 D) $27.00

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Which number has an absolute value that is equal to the absolute value of 32?

Answers

Answer:

-32

Step-by-step explanation:

The absolute value of a number is its distance from 0. Since distance is always positive the absolute value is the same number but positive. So the absolute value of -32 and 32 would both be 32 because they have the same distance from 0.

Elise wants to divide a sum of money between Hannah and Adil in the ratio 2 : 3 . Elise says: Hannah will get 2 3 of the money. To explain why Elise is not correct, find the fraction of the money that Hannah will get.

Answers

Answer:

2 / 5

Step-by-step explanation:

Given that :

Ratio of money division by Elsie between Hannah and Adil = 2 : 3

Hannah = 2 ; Adil = 3

Elsie says Hannah gets 2 /3 which is incorrect :

The correct fraction each gets is as follows

Fraction of money Given to each :

Total = (2 + 3) = 5

Hannah = 2 / total = 2 /5

Adil = 3 /total = 3 /5

Hence, the correct fraction Hannah gets is 2 /5

HELPPP PLEASE I NEED HELP FAST!!!
Given two congruent figures, NEPK ≅ VXSR , list FOUR pairs of congruent sides.
Select all the pairs of congruent sides.
A. KN ≅ RV B. NE ≅ PK
C. NE ≅ SR D. PK ≅ SR
E. EP ≅ RV F. EP ≅ XS
G. NE ≅VX H. KN ≅ VX

Answers

Answer:

Step-by-step explanation:

NEPK ≅ VXSR

Janet drove 420 miles in 6 hours. What was her constant rate of change?

Pls answer

Answers

Answer:

70 miles per hour

Step-by-step explanation:

too much drama on brainly.......... no?

Answers

Answer:

For real I hate hearing that mysterious man

Step-by-step explanation:

what is the slope for 9x+4y=8 in decimal form?

Answers

Answer: -2.25

9x+4y=8

4y=-9x+8

y= -9/4x+8/4

y=-2.25x+2

I hope this is good enough:

A store advertises a % markdown on a dishwasher with a selling price of $. Find the sale price. This is the greatest possible markdown that the store can discount the dishwasher without losing money. What does this tell you about the cost?

Answers

Complete question :

A store advertises a 20% markdown on a dishwasher with a selling price of $952. Find the sale price. This is the greatest possible markdown that the store can discount the dishwasher without losing money. What does this tell you about the cost?

Answer:

$761.60

Step-by-step explanation:

Given that :

Sales price = $952

Markdown % = 20%

Sales price = (100 - 20)% * $952

Sales price = 80% * $952

Sales price = $761.60

If 20% is the greatest possible markdown the store can give without losing money, then the price at which the store purchased the dishwasher is $761.60

3. What is the value of x in the figure
below?

Answers

Answer:

3 = 14 and 4 = 8

Step-by-step explanation:

The reason as to why this is, is because of the line going down the middle. If you were to open one of the lengths as a door starting from the middle line it would fit perfectly with the top one.

WILL GIVE BRAINIEST ANSWER!!!! & POINTS!!!

SOLVE FOR X.

Answers

Answer:

x = -6

Step-by-step explanation:

its an equilateral triangle, all three angles are 60°

x + 66 = 60

x = -6

you rent a canoe for $5 per hour. Your cost before the tax is added is $7.50. Write and solve an equation to find the number of hours that u rented the canoe.

Answers

Answer:

My equation is 5X = 12.50 , then I divide 5 from both side to get 2.5 for the number of hours that rented the canoe. Two and half hours I guess.

Step-by-step explanation:

Answer:

5x = 7.5

x = 1.5 hours

Step-by-step explanation:

5x = 7.5

divide entire equation by 5

x = 1.5

Identify the slope-intercept form and the graph of the line described by the equation 2x−y=0.

Answers

Answer: y=2x

Step-by-step explanation:

Let's solve for y.

Step 1: Add -2x to both sides.

2x−y+−2x=0+−2x

−y=−2x

Step 2: Divide both sides by -1.

-y/-1 = -2x.-1

y=2x

Therefore, the y=mx+b form of this question would be y=2x

Answer:

y = 2x

Step-by-step explanation:

In order to get from standard form to slope-intercept form (y = mx + b), we have to find what we are looking for. Since we want to get slope-intercept form, we want to find y. To find y, we isolate it.

2x - y = 0

Subtract 2x from both sides...

(2x - 2x) - y = (0 - 2x)

Now we have - y = -2x + 0.

But wait, we can't have a negative y... so we simply divide by -1.

(-y/-1) = (-2x/-1) + (0/-1).

Since 0 divided by any number is just zero, we can drop it. Now that y is positive, we have our answer!

What is the slope of the line that passes through the points (5, -10) and(−3,−10)?

Answers

Answer:

the slope would be 0

Step-by-step explanation:

to find the slope subtract the two y's and the two x's, so:

first the y's: -10--10= -10+10=0

next the x's: -3-5=-8

then, divide them:

0/-8=0

so the slope is 0.

they deleted my answer

One side of a square measures 15cm. What is its area?

Answers

Answer:

Area = l^2

Answer is 225

Well the formula for area is length times breadth so the length = 15 and since all the sides of a square are equal the breadth also equals 15. So now we have to multiply.

So now 15 times 15 = 225 sq cm

Ans: 225 sq cm

(5x – 3 – x²) + (8x^2– 1+x)

Answers

Answer:

7x^2+6x-4

Step-by-step explanation:

(-x^2+5x-3)+(8x^2+x-1)

Just combine like terms.

-x^2+8x^2= 7x

5x+x= 6x

-3-1= -4

What is the difference?
A:-6-(11)
B:0-17
C:05
D:0 17

Answers

Answer:

-17 :)

hope this is helpful

Which relation is not a function? A. (2, 9), (−1, −5), (1, 5), (5, 0), (12, 3) B. (−3, 1), (6, 2), (8, 3), (6, 4), (3, 5) C. (5, 1), (4, 2), (3, 3), (2, 4), (1, 5) D. (7, 2), (5, 3), (3, 4), (1, 5), (−1, 6)

Answers

Answer:

the answer is b

Step-by-step explanation:

plz mark brailiest!!

B is a relation that's not a function.

So the answer is ( B )

Because there's a repetitive domain and that's x = 6. There're (6,2) and (6,4). Function can only have a domain that gives one output.

the difference between a number and four

Answers

I think what you mean is that as an equation, that equation would be x-4

The price of a visit to the dentist is $50 . If the dentist fills any cavities, an additional charge of, 100$ per cavity gets added to the bill.
If the dentist finds cavities, what will the cost of the visit be?
Write your answer as an expression.

Answers

The cost of the visit to the dentist can be expressed as the cost equals 100x+50.

The initial cost of the appointment would be $50; no matter how many cavities one has, they would still have to pay $50.

The cost of each cavity is represented as 100x, because each cavity costs $100. x represents the number of cavities, as we do not know how many cavities there are.

Answer:

50+100x=?

Step-by-step explanation:

50 is the amount of money it is for a visit and the x represents how many cavities are being filled and the 100 is for how much it is per cavity to be filled. For example if you needed 3 cavities filled then it would be 50+(100x3).

(Btw sorry if the equation for the step-by-step explanation is incorrect)

Other Questions

Tracey paid $195 for an item that was originally priced at $450. What percent of the original price did Tracey pay? PLEASE HELP NEED FAST Cellular respiration is the__________of photosynthesis What number would you multiply the second equation by in order to eliminate the x-terms when adding to the first equation? What number would you multiply the first equation by in order to eliminate the y-terms when adding to the second equation? Date Time Manipulation Exploration If you start from Jan 1st, 1757, and repeatedly add 8 days, until you hit 1800, how many times will it be a Monday? # YOUR CODE HERE def calcDays (): my_date = date(1757, 1, 1) m = 0 while my_date.year != 1800 : my_date = my_date + timedelta(days = 8) if my_date.isoweekday () == 1: m += 1 return m Make a function Once you have answered this question, convert your code into a generalized function. This function, call it count_weekdays should take: start_date: a start date (a datetime object) add_days : a number of days to add (an int) stop_year: a stop year (an int) weekday : a day to count, represented in isoweekday format (an int) It should return the number of weekday is that occur from the start date, until stop year, when adding add_days days. PLEASE WRITE A SHORT PARAGRAPH EXPLAINING THE BENEFITS OF ALCOHOL FREE. PLEASE DONT COPY FROM THE INTERNET AND THANKSSSS! WILL GIVE BRAINLIEST When Great Britain conquered its first foreign land, it changed from beinga regional power to a colonial power.true or false How does a government typically exercise its power of censorship? (Please help I need this dumbed down if possible its so confusing) (37 points) Ms. Kits works at a music store. Last week she sold 6 more than 3 times the number of CDs that she sold this week. Ms. Kits sold a total of 110 CDs over the 2 weeks. How many CDs did she sell last week and this week? How do I write this as 2 equations with 2 variables? Which of the following is not true regarding the Nazca lines?A. Currently, the Nazca lines can only be seen in satellite photos.B. The combined length of the lines is more than 807 miles.C. No one is sure why they were built.D. The Nazca lines are made up of hundreds of geoglyphs. What are the x- and y-intercepts for the graph of 3x + 5y=-15? Hey You,Can I tell you a secret?You are so beautiful. Whether your curvy or skinny tall or short... weather your hair is blond, brown, black, or red... weather you have braces, glasses, or scars from all those years of hating your beautiful body your in.No one has the same sparkle in their eyes or shine in their hair or spark in their words. There's never been anyone like you . There isn't right now and their wont be again.Now take a look at that beautiful human in the mirror and.Love Your Self! 2 QUESTIONS FOR DOUBLE THE POINTS!! 20 POINTS!!Xavier bought a 20 ounce smoothie that contains 450 total calories. How many calories does the smoothie contain per ounce?Caleb bought a box of 20 pretzel rods for $4.40. What is the price per pretzel rod?Group of answer choicesCaleb bought a box of 20 pretzel rods for $4.40. What is the price per pretzel rod?Group of answer choices WHII.13a9.The North American Treaty Organization is defined by all of the following exceptAa defensive military alliance. ,Bincluded the United States, Canada, and ten Western European nations.was created as a companion to the Warsaw Pact.Dwas a result of heightened Western Europe fears of Soviet aggression. The author wrote, "In 1860 Abraham Lincoln was elected president andseven southern states seceded from United States, creating theConfederate States of America." Explain what the word seceded means inthis context. pls help bc this is due at 3:30pm 4. Which describes a nicotine-substitute product?O A product with nicotine, but without other harmful chemicals.O A product that is similar to nicotine but has no negative effects.O A product that contains the same chemicals as tobacco.O A product that replaces the nicotine in a smoker's cardiovascular system. Prueba 2A-1:Vocabulary recognitionA. Javier and Clara are writing a list for their younger brother and sister of things to do to get ready for an event. In each set of responses, oneof the items does NOT complete the idea logically. Select the item that does NOT fit.Hay que lavarse (?) todos los das Which common allergen is a powdery substance released by the flowers of plants? antihistamine hives pollen histamine Ms. Fresh bought 1,000 shares of Ibis Corporation stock for $5,100 on January 15, 2018. On December 31, 2020, she sold all 1,000 shares of her Ibis stock for $4,550. Based on a hot tip from her friend, she bought 1,000 shares of Ibis stock on January 23, 2021, for $3,025. What is Ms. Fresh's recognized loss on her 2020 sale, and what is her basis in her 1,000 shares purchased in 2021?a. $0 LTCL and $4,850 basis.b. $560 LTCL and $4,290 basis.c. $840 LTCL and $4,010 basis.d. $1,120 LTCL and $3,730 basis.e. $1,400 LTCL and $3,450 basis.