Mathematics High School

1. SOCCER Suppose a youth soccer field has a
perimeter of 320 yards and its length measures 40
yards more than its width. Ms. Hughey asks her
players to determine the length and width of their
field. She gives them the following system of
equations to represent the situation. Use elimination to
solve the system to find the length and width of the
field.
2L + 2W=320
L - W = 40

Answers

Answer 1

Answer:

L = 100

W = 60

Step-by-step explanation:

2L + 2W = 320

-2L + 2W = -80

4W = 240

W = 60

L - W = 40

L - 60 = 40

L = 100

Related Questions

10 pts+ brainliest if correct

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

7x - 9 + 2(3 - 2) when x = 8

Answers

Answer:

Step-by-step explanation:

i need help with this
2(5x+4)=

Answers

4/5

2(5x+4)=

distribute the 2

10x+8=

subtract 8 from both sides

10x=8

divide 10 from both sides

x=8/10

simplify by 2

x= 4/5

Baby Darling is already the answer is 10x+8

I need help solving this equasion

Answers

70+60+x=180
130+x=180
X=50

Angles 60°, 70° and y form a straight line.
Angle on a straight line is 180°
So to get y it will be 180°-(60°+70)
Which is equal to 180°-130°= 50°
Y= 50°
Y and x are vertically opposite angles and vertically opposite angles are equal so therefore x=y and y=50° so x is also equal to 50° or also to find x you could do the same method as the way to find y. Angles 60°, 70° and x form a straight line. So 180°- (60°+70°)= 180°-130°=50°
X=50°.

Write your answer in scientific notation.
(6.4×10^3)+(5.2×10^4)

Answers

In Scientific Notation It Will = 5.84 × 10^4

Max can type 165 words in 2 minutes. At that rate, how many words can he type in 55 minutes?

Answers

Answer:

he type in 55 minutes : (55 x 165) / 2 ≈ 4538 words

Step-by-step explanation:

165/2=82.5 words per minute
82.5x55=4,537.5 words typed in 55 minutes

When she is done exploring the reef, she ascends at a rate of 5 feet per minute. Once she reaches a height of -30 feet, she must rest for 15 minutes to allow her body to adapt to the changing water pressure. She then continues to the surface at the same rate. How long will it take the diver to reach the surface?

Answers

Answer:

random answer s are z best

Solve the system using substitution. -2x+5y=19
3x-4=y

Answers

Answer:

answer is x=3 and y=5.... so it is (3,5)

Step-by-step explanation:

you want to combine them so y=3x-4 so subsitute y

-2x+5(3x-4)=19

-2x+15x-20=19

+20 +20

13x=39

--- ---

13 13

x=3

now subsitute 3 into x into any problem...

3(3)-4=y

9-4=y

and 9-4 is 5 so it is...

(3,5)

pls give me brainliest

(x+3)(x-8) Multiply and Simplify

Answers

Answer:

x^2-5x-24

Step-by-step explanation:

245 + 197 =
Plsss help me

Answers

the answer would be 442

Step-by-step explanation:

245+197=442 i think....

QUICk whoever gets the correct answer gets brainliest

Answers

Answer:

1/5

Step-by-step explanation:

In triangle PQR, PQ = 8 cm, QR = 6 cm, and mZPQR = 30°.
Exactly how long is PR?
P
8 cm
30°
6 cm
R

Answers

Answer:

PR = 10

Step-by-step explanation:

Pythagoras

hypotenus ² = base² + attitude ²

substitution ; PR² = 6²+8²

PR² = 100

PR = √100

So, PR = 10

hope it helps you ☺️

Original Price = ? Percent of Discount 25% Sale Price $40

Answers

The original price would have been 60 dollars because 25%of 60 is 20 so take twenty from sixty and you get forty

Answer:

10 dollars discount

Step-by-step explanation:

The slope of the line below is 5. Which of the following is the point-slope form
of the line?
(-1,3)
5
A. y + 3 = -5(x - 1)
B. y + 3 = 5(x - 1)
C. y - 3 = 5(x+1)
D. Y-3 = -5(x + 1)

Answers

The point-slope form of the line in the graph is y-3 = 5(x+1). The correct option is C.

What is the point-slope form of the line?

The point-slope form of the line is y-y₁ = m( x-x₁)

Here, m is the slope of the line.

The graph given in the question has a slope of 5

It passes through the point ( -1,3)

The point slope form of the line is

y - 3 = 5 ( x - (-1))

y-3 = 5(x+1)

This is represented by option C.

To know more about the Point-slope form of the line

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Hi can anyone please help me with this problem, I’d really appreciate it

Answers

We can start this equation off by noticing the fact that this is a linear equation, which we can write in the form of: [tex]mx+b[/tex]. We can plug in our x values and y values given. I am going to start on the second line:

We plug in the given point: [tex](0,-3.2)[/tex].

[tex]-3.2=m(0)+b\\-3.2=b[/tex]

We can also plug in the point [tex](4,0)[/tex] to get:

[tex]0 = m(4) -3.2[/tex]

We get [tex]m = 0.8[/tex]

Therefore, our equation for the SECOND line is:

[tex]y = 0.8m - 3.2[/tex]

Hope that this helps you do the first line.

Which angle is complementary to <ADB?

A) Angle BDA
B) Angle ADC
C) Angle BDC
D) Angle CDA

Answers

Answer:

Angle CDA IS CORRECT

D is the correct answer

Dennis recently purchased an old car for $1000, and he knows that each year, the car’s value will increase by 2% each year. What is the value of the car after 20 years?

Answers

It is going to be 1400

Complete the square and write the quadratic equation in vertex form please show steps

Answers

Answer:

Square: [tex](x-10)^{2} -68[/tex]

Vertex: (10,-68)

Step-by-step explanation:

2 2/3 - 1 1/2 - 4/5
Need answers pls show how you got it

Answers

it would be 45
l hope that helps

Find the smallest number that is divisible by both 18 and 48.

Answers

Answer:

144

Step-by-step explanation:

write out the 18 and the 48 times tables until you find the smallest number that is in both times tables. and there's your number :)

3x^3+10x^2+7x divided by x+1

Answers

your answer is

3x^2 + 7x

i’ve attached the work in the picture

The ratio of ebooks to novels is 4:5. if there are 32 ebooks how many novels are there?

Answers

Answer: 40 novels

================================================

Work Shown:

n = number of novels

(32 ebooks)/(n novels) = 4/5

32/n = 4/5

32*5 = n*4 ............ cross multiply

160 = 4n

4n = 160

n = 160/4 .............. dividing both sides by 4

n = 40

There are 40 novels.

Help me please :) .
I’ll mark you as a brainliest.

Answers

Answer: A,C

Step-by-step explanation: I looked it up

Answer:

C and D because Linear means something related to a line.

A farmer uses 1/3 of his lànd to plant cassava, 2/5 of the remaining land to o plant maize and the rest for vegetables.
i. What is the total area of the farmer's land?

Answers

Answer:

he has used 53%

Step-by-step explanation:

not enough info to tell you the area

6x89+93=
please it wont be mean

zoo/m???

Answers

Answer:

can't you do it with calculator?

The answer is 627.

Explanation: 6 x 89 = 534 + 93 = 627

Select three ratios that are equivalent to 4:18

Answers

Answer:

B, E

Step-by-step explanation:

2:9 is the simplified ver. of 4:18

8:36 is 2x 4:18

(NOT C: Included because the order does matter and this is a common mistake.)

Answer:

2:9 and 8:36 are the two ratios that are equivalent to 4:18

Can some answer pls.

Answers

Answer:

E. (7,-2)

Step-by-step explanation:

The answer is E (7,-2) if u look at the graph u can find the answer easily. And remember if u need help ask ur teachers to help you

Select an equivalent ratio to the following

12 chocolate croissants to 9 cheese croissants

- 24 : 19
- 4 to 3
- 3/4

Answers

The answer is 4:3, reduce both sides by common denominator

Can Somebody Please Help Me With This!!

Answers

Answer:

I think A

Step-by-step explanation:

sorry if it is not correct hope it helps

Answer:

I cant see the numbers clearly but I think its 24

All positive integers whose digits add up to 11 are listed in increasing order: 29, 38, 47, ... What is the eleventh number in that list?

Answers

Answer: 137

Step-by-step explanation:

29, 38, 47, 56, 65, 74, 83, 92, 119, 128, 137

The eleventh digit in list is 119.

What is arithmetic progression?

A sequence in which the next term in the sequence is obtained by adding a constant to each term is known as an arithmetic progression. The common difference is the added constant. It is a succession to such an extent that the contrast between any two sequential terms in the grouping is dependably a consistent.

Consider the terms of an arithmetic progression sequence as n1, n2, n3, n.

Given a series 29, 38, 47, ….

for an AP aₙ = a₁ + (n - 1)d

where a₁ = first term of AP

n = number of terms, and d = difference between the terms

here d = 9, n = 11 and a₁ = 29

a₁₁ = 29 + (11 - 1)x9

a₁₁ = 29 + 10 x 9

a₁₁ = 119

Hence the term is 119.

Learn more about arithmetic progression;

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