What is the distance between point R(−1, 7) and point T(−7, 7) ?

1 unit
6 units
7 units
8 units
pls help me i am trying to get a better grade in math

Answer:

Let's define.

L = rate at which the large pump fills the pool.

S = rate at which the small pump can fill the pool.

We have two relations:

"Two large and 1 small pump can fill a swimming pool in 4 hours."

(2*L + S)*4h = 1

"One large and 3 small pumps can also fill the same swimming pool in 4 hours."

(L + 3*S)4h = 1

Then we have the system of equations:

(2*L + S)*4h = 1

(L + 3*S)4h = 1

To solve this system, we need to isolate one of the variables in one of the equations, i will isolate S in the first equation:

S = 1/4h - 2*L

Now we can replace that in the second equation:

(L + 3*(1/4h - 2*L))4h = 1

L + (3/4h) - 6*L = 1/4h

-5*L = 1/4h - 3/4h = -2/4h

L = (2/4h)*(1/5) = (2/20h) = 1/10h

This means that one large pump needs 10 hours to fill one pool.

With this, we can find the value of S:

S = 1/4h - 2*L = 1/4h - 2/10h = 5/20h - 4/20h = 1/20h

This means that a small pump needs 20 hours to fill a pool.

Now we can answer:

How many hours will it take 4 large and 4 small pumps to fill the swimming pool?

We need to solve the equation:

(4*(1/10h) + 4*(1/20h))*T = 1

We need to find the value of T.

T = 1/((4*(1/10h) + 4*(1/20h)) = 1.67 hours.

This means that 4 large and 4 small pumps need 1.67 hours to fill a pool.

The values of following are 10 yards = 0.009144 km, 44,880 feet = 13.678, 15,560 yards = 14.228

"The kilometer spelt kilometer in American English, is a unit of length in the metric system, equal to one thousand meters (kilo- being the SI prefix for 1000). It is now the measurement unit used for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is the unit used."

Given,

(i) 10 yards

1 yard = 0.0009144

then 10 yard = 10*0.0009144 = 0.009144 km

(ii) 44,880 feet

1 feet  = 0.00030478

then 44,880 feet = 44,880*0.00030478 = 13.678 km

(iii) 15,560 yards

15,560 yards =  15,560 *0.0009144 = 14.228 km  

Hence, D is the correct option.

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Answer:

True

Step-by-step explanation:

sry if it wrong

Answer:

easy uzi tay k or sofaygo

Step-by-step explanation:

Answer:

a. Tip is before the discount so the waiter will get;

= 42 * 18%

= $7.56

b. New total;

Coupon of 15% off applies;

= 42 * (1 - 15%)

= $35.70

Add the tip;

= 35.70 + 7.56

= $43.26

Answer:

y=mx+b is slope intercept form

In slope intercept form, m represents the slope, b represents the y-intercept and x and y represent the values of x and y on a graph.

Therefore, the slope is m and the y-intercept is b

Step-by-step explanation:

Answer:

15 units

Step-by-step explanation:

[tex]d \: = \sqrt{(x2 - x1) ^{2} + (y2 - y1) ^{2} } [/tex]

d = 14.866

d = 15

Answer:

- 16x + 3y

Step-by-step explanation:

this can be done in two ways- vertical method or horizontal :

I did one:

( i hope this is right)

Answer:

It's D I got it right

Step-by-step explanation:

I know

Answer:

D

Step-by-step explanation:

x = –3, x = 1, x = 3.5, and x = 5

Answer:

-100%

Step-by-step explanation:

Answer:

-100

Step-by-step explanation:

I got u bro

Answer:

62

Step-by-step explanation:

let there be X people in the beginning

so

X-18+21=65

X+3=65

X=65-3

X=62

Answer:

it would be 95 divided by 60

Step-by-step explanation:

but the answer to that is 1.5833333333333333333

14. Is B

16. Is B

correct

To be honest I have not liked anything about being online at school, I hope to return soon (but I am a little scared because I am new to school and I have no friends: c) If the next semester they open I plan to go to schools, but if they don't open, then I'll stay online. I hope they find your pet soon! I don't know you but I love you very much!

Answer:

I don't like not being able to see my friends and miss seeing my teachers and don't do as well. I also struggle when i cant be face to face with a teacher so I can get help. I liked not having to wear a mask and chill at home in my pajamas. I also do not plan to be virtual next semester.

Step-by-step explanation:

Pls give me brainliest

Answer:its b

first off its a straight line ill give it that but its not going through the origin is think its b

hoped this helped lmk if it did

Answer:

(3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly kcharacterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness

Step-by-step explanation:(3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness (3,-5)(5,7) instrumentate in inclination countercheck form. correspondingly characterization forethoughtfulness

Answer:

b

Step-by-step explanation:

b

Answer:

Tree C was the tallest when planted.

Step-by-step explanation:

If you look at the graph you'll see that the height at 0 months is 10 inches.

Answer:

15 boxes!

Step-by-step explanation:

Hope this helps!

The number of boxes of spaghetti required to feed 50 people will be equal to 15 boxes.

The ratio notion is used in mathematics when evaluating two or more numbers. It works as a comparison tool to demonstrate how big or small a particular number is.

A ratio divides two quantities to compare them.

As per the given information in the question,

Total number of people who attended the party first time = 20

Number of spaghetti boxes required to feed 20 people = 6

Let the number of boxes required to feed 50 people be x.

So, the ratio will be,

6 boxes = 20 people

x boxes = 50 people

Perform cross-multiplication,

20x = 50 × 6

x = (50 × 6)/20

x = 5 × 3

x = 15 boxes.

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Answer:

gl*ck 9 put em out like a light

Step-by-step explanation:

Coupe tinted like a thief in the night