at a park, there are 38 people playing tennis some or playing doubles and some are playing singles there are 13 matches in progress, A doubles match requires 4 players and a singles match requires 2 players.

a. write a system of two equations that represents the number of singles and doubles matches going on.

b. how many matches of each kind are in progress

Answers

Answer 1

x = number of singles matches
y = number of doubles mnathes

so we have the equation x + y = 13.......(1)

also

2x + 4y = 38 ...........(2)

(1) and (2) are the required equations

b) Find how many maches are in progress by solivng the above equations:-

x + y = 13 multiply this by -2:-
-2x - 2y = -26
2x + 4y = 38 Adding to removes the terms in x:-

2y = 12

y = 6

so x = 13-6 = 7

So the answer is 6 double matches and 7 singles are in progress.

Related Questions

name the property for x+y=y+x

Answers

it is the commutative property!

Commutative property is your answer

hope this helps

suppose 25 out of 175 people said they like to play disc golf and out 5 out of every twelve of the players have a personalized black disc at the Staybridge in a group of 252 people predict how many you would expect to have a personalized flying disc

Answers

We have [tex] \frac{5}{12} [/tex] of 252 people who have a personalized black disc

Number of people who would have personalized flying disc = [tex] \frac{5}{12}*252= \frac{2*252}{12}=105 [/tex] people

Then we work out the number of people who like to play disc golf:
[tex] \frac{25}{175}*105= \frac{25*105}{175}=15 [/tex] people

So we have 15 people who like to play disc golf and have personalised black disc.

he new Coat and Jacket Store was ready to open. The workers put out 42 racks of men’s and boy’s coats and jackets with 16 items on each rack. They also put out 35 racks of women’s and girl’s coats with 24 items on each rack. How many coats and jackets were on the store racks? A. 42 + 16 + 35 = 93 and 93 x 24 = 2,232 coats and jackets B. 42 + 35 = 77 and 16 + 24 = 40 and 35 x 40 = 1,400 coats and jackets C. 42 x 16 = 672 and 35 x 24 = 840 and 840 + 672 = 1,512 coats and jackets D. 42 + 16 = 58 and 35 + 24 = 59 and 59 + 58 = 117 coats and jackets

Answers

42 x 16=672
35 x 24=840

672+840=1512

C. 42 x 16 = 672 and 35 x 24 = 840 and 840 + 672 = 1,512 coats and jackets

Please show your work with each expression. Simplify.

6a - 2b^2 a=9 b=5

4d^3 + 6e^2 - 8d ÷ 2 d=2 e=3

5r^2 ÷ 4 + 4s ÷ 3r r=4 s=9

Answers

(replace the variables) 6(9)-2(5)^2
(simplified) 54-10^2.... 54-100=-46

How does an underestimate relate to rounding factors before estimating?

Answers

when both factors in a multiplication problem are rounded up to estimate the product, the estimate is an overestimate.

When you round up, you overestimate because now numbers are bigger than before rounding. In a similar way, when you round down, you underestimate. And, when you round down some factors and round up others, it is hard to tell whether the estimate is an overestimate or an underestimate.

What is the unit rate for 3 inches of rain in 6 hours?

Answers

You would multiply 3*6

1/2 (.5) inches an hour

The sum of 17 and twice a number is 87. Find the number.

Answers

" the sum " means add

17 + 2x = 87
2x = 87 - 17
2x = 70
x = 70/2
x = 35 <==

Anybody know this answer ?

Answers

xy^2/(x^3 y^3)

1/(x^2 y) is the answer

2 for $9. what is the unit price?

Answers

9/2
4.50

Hope this helped!

$4.50 is ur answer all u do is 9 divided by 2

Which triangle is a translation of triangle ABC?

MNO
PQR
STU
VWX

Answers

I think it’s MNO but I really don’t know

Answer:

MNO

Step by step:

A translation is the shifting of a figure from one place to another without rotating, reflecting or changing its size. So when you look at all of the answer choices then look at the definition of translation you see that MNO fits all the criterias.

(I am going with the assumption that this is the question since you gave no picture.)

(MNO is the correct answer for plato.)

Twice a number increased by 3 is 45. What is the number?

Answers

135 because 45x3=135 at least I'm sure this is what you mean

2N+3=45

2N = 42

N = 42/2 = 21

N = 21

Need help on part b asap

Answers

the answer gotta be b or d

You have the first part correct. The area 36pi comes from squaring 6 to get 36.

The diameter 12 is cut in half to get the radius 6.

Add on 3 to the radius to get 3+6 = 9. The new radius is 9 which squares to 81. That's why the answer is choice D for the problem on the right.

Elena has one and a half times as much money as ramon. together they have $225. how much money does each have? choices for ramon's amount: 80, 90, 95

Answers

e + r = 225
e = 1.5r.......1 1/2 = 1.5

1.5r + r = 225
2.5r = 225
r = 225/2.5
r = 90 <== raymon

e = 1.5r
e = 1.5(90)
e = 135 <=== elena

A farmer has 25 yards of fencing to make a pig pen. He is going to use the side of the barn as one of the sides of the fence, so he only needs to fence 3 sides. What should be the dimensions of the fence in order to maximize the area?

Answers

a square gives the largest area

25 yards of fence = 25*3 = 75 feet

75/3 = 25 feet

so the dimension should be 25 feet by 25 feet

the area would be 25^2 = 625 square feet

how to solve -24-1/8p=3/8p?

Answers

first u divide both sides by 8

you get
-192-p=3p

collect like terms
-p-3p= 192

divide both sides by -4
-4p=192

P= -48

what is the reciprocal of the fraction 3 5/6

Answers

the reciprocal is 6/23 because once you change it into a mixed number you get 23/6 then you flip it

When a fraction of 17 is taken away from 17 what remains exceeds one-third of seventeen by six.

Answers

1/3x17/1=51/1 that's how you do it by explaining

Answer:

The fraction taken away from 17 is [tex]\frac{16}{3}[/tex]

Step-by-step explanation:

The simplest way to solve this word problem is to set to equations equal to one another and solve the missing fraction.

The one side of the equation is 17 subtracted by an unknown fraction.

The other side is one third of seventeen added to 6.

[tex]17-x=\frac{1}{3}(17)+6\\x=17-6-\frac{1}{3}(17)\\x=11-\frac{17}{3} \\x=\frac{33}{3} -\frac{17}{3}\\x=\frac{16}{3}[/tex]

I will give BRAINLIEST to whoever is correct.

Answers

4b/3+2 = 4-b/3

5b/3 +2 =4

5b/3 =2

5b =3*2

5b=6

b=6/5

Bobby Hsu is an office manager at a weekly newspaper. He earns $22.50 per hour. How many hours per week does Bobby work if he earns $522.00 per week?

Answers

about 23 hours divide $522 by $22.50

What is 8.5 as a mixed number in simplest form

Answers

8 5/10
8 1/2

Hope this helped!

The decimal 8.5 can be converted to a mixed number in simplest form by simply applying logic. 0.5 is 1/2 so 8?5 is just 8 1/2 as a simplified mixed number.

I hope this helps!

10x + 9 as a word phrase

Answers

"Ten times a number plus 9" Is the correct way to write this equation.

The sum of three consecutive odd integers is 72 more than the smaller integer. What are the integers? plz show work.ASAP

Answers

Let the consecutive odd no. be X, Y, and Z.
Since they are consecutive,
Y = X+2 and Z = Y+2 = X+4.
Now,
X+Y+Z = X+72 (according to question)
Substituting,
3X + 6 = 72
3X = 72 - 6 = 66
Therefore,
X = (66/3) = 22
Y = 24
Z = 26

what is the value of "x" in 16^2 = x

Answers

16^2 = 16 * 16 =256

x = 256

25386 to the nearest 1000

Answers

i think the answer is 25000

25000 is the answer...

Choices are associative property and commutative property opposite of a sum property

Answers

It would be associative property because the order of the numbers stayed the same

June is working on an addition problem and starts with 17,985. After she adds she still has 17,985. Which property of addition did June use? How do u know? please help me as fast as possible im doing this right now

Answers

u start with 17,985...u add a number and the result is still 17,985. There is only 1 way this can happen and that is if the number u added was 0.

17,985 + 0 = 17,985....this is the additive identity property...which simply states that u can add 0 to a number and it still keeps its identity.

Answer:

Additive Identity

Step-by-step explanation:

Given number: 17985

Let say June added x to this no.

The result of the addition = 17985

Result = 17985 + x

17985 = 17985 + x

Thus, x = 0.

This means that June added "0" (zero) to the number. This is additive identity. As per this property, when additive identity is added to a number, the number remains unchanged.

a(n+y)=10y+32 solve for y

Answers

we have

[tex]a(n+y)=10y+32[/tex]

Solve for y

[tex]a(n+y)=10y+32\\an+ay=10y+32[/tex]

Group terms that contain the variable y, and move the other terms to the opposite side of the equation

[tex]ay-10y=32-an\\ y(a-10)=32-an[/tex]

Divide by [tex](a-10)[/tex] both sides

[tex]y=\frac{(32-an)}{(a-10)}[/tex]

therefore

the answer is

[tex]y=\frac{(32-an)}{(a-10)}[/tex]

Answer:

(32-an)/(a-10)

Step-by-step explanation:

Huda made 8 matching bracelets. She used 128 beads in all. How many beads did she use per bracelet? 10 beads per bracelet 12 beads per bracelet 14 beads per bracelet 16 beads per bracelet

Answers

The answer is sixteen. (16)

128 / 8=16

If Huda made 8 matching bracelets. She used 128 beads in all. Then 16 beads she used per bracelet.

What is Division?

A division is a process of splitting a specific amount into equal parts.

Given,

The number of beads Huda used are one hundred twenty eight

Number of beads=128

The number of bracelets huda made by using 128 beads is 8 bracelets.

We have to find in each bracelet how many beads Huda used.

This can be achieved by division.

We have to split 128 beads into eight groups.

128/8=16

In each group has 16 beads. Which means each bracelet has 16 beads.

Hence 16 beads she used per bracelet.

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ6

Is -2.74 a rational number?

Answers

yes, in mathematics, a rational number is any numberthat can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

Yes -2.74 is a rational number a negative number is a rational number always then 2.74 is not is a positive number so it's never rational

What is "40x = 5y (w - 3z)" (Solve for w)

Answers

Okee dokee, solve for w when 40x=5y(w-3z), so it's will gonna be like this:
40x=5y(w-3z)
40x=5yw-15yz
+15yz +15yz
40x+15yz=5yw
/5y /5y
40x/5y+3z=w
8x/y+3x=3, this is the final answer.

Other Questions

The movement of h+ ions into the stomach (represented above) is accomplished through: 1. Clara grew 2 1/8 inches from her ninth birthday to her tenth birthday. If she was 53 2/3 inches when she turned nine. How tall was she when she turned ten? It is interesting to note that both the SCLC and SNCC have the same roots. Actually, SNCC was born out of SCLC. Ella Baker, a member of the SCLC, helped form the SNCC with a group of college students. Do some online research, and identify some key similarities and differences between these two organizations. Then, in a well-rounded paragraph, explain two key similarities and two key differences between the groups. Which of the following is protected as free speech in the United States? A. disobeying a law in protest B. lying about an emergency C. defacing a statue or monument D. organizing a public demonstration A stack of one hundred fifty cards is placed next to a ruler, and the height of the stack is measured to be 3/4 inches.How thick is one card? An equation that is not true for any values of the variable is called a(n how could you estimate the total number of nests in Florida Determine the number of atoms in 1.70 ml of mercury. (the density of mercury is 13.5 g/ml.) A client is concerned about tripping when walking and feeling uncoordinated. which part of the brain might be causing this clients symptoms? What as the name of the group of religious settlers who founded the second permanent english colony in north america at plymouth, massachusetts? You are given n = 5 measurements: 5, 3, 3, 8, 8. (a) calculate the sample mean, x. (enter your answer to one decimal place.) One of the achievements of emperor justinian was the construction of the church at st. sophia. describe the building Can someone please help me with #2 and 4 please thanks Formaldehyde, ch2o, is used as an embalming agent. draw the structure of ch2o including lone pairs.formaldehyde, ch2o, is used as an embalming agent. draw the structure of ch2o including lone pairs.formaldehyde, ch2o, is used as an embalming agent. draw the structure of ch2o including lone pairs. The perimeter of a rectangle is 900 yards. what are the dimensions of the rectangle if the length is 70 yards more than the width? David and his two friends The tendency to remember previous sad events when feeling sad in the present is an example of _______________memory. mood-congruence emotion-focused context dependent emotion-dependent If the amount of flour were increased by a factor of 2 1/2, in cups, how much flour would there be? 2/3 is the originonal fraction for w suger 1. 2 1/22. 2 1/43. 5 5/84. 5 1/4 What kind of powers are given to both the states and national government? Calculate the displacement of the volleyball in sample problem 2f when teh volleyballs final velocity is 1.1 m/s upward Steam Workshop Downloader