1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
spayn [35]
3 years ago
7

One question I need help with, I would really appreciate the help.

Mathematics
1 answer:
LuckyWell [14K]3 years ago
4 0

At first, she had  +2y  in the upper and  -5y  in the lower.

She multiplied the upper by  5 .  Then she had  +10y in the upper.

She should multiply the lower by  2 .  Then she'll have  -10y
there.  She'll be able to add the two equations, and the 'y's will
go away.  She'll be left with a single equation with only 'x' in it,
and she can solve that one for the value of 'x'.

You might be interested in
Obtain the sample standard deviation <br><br>9, 10, 11, 12 ,13 ,14 ,15 ,16 ,17
Marat540 [252]

Standard deviation (s): 2.7386127875258

8 0
3 years ago
Use the formula, I = PRT, to find the time if | = $387.50, P = $1,550, and R = 12.5%
stiks02 [169]

Answer:

T = 2

Step-by-step explanation:

Take the given formulaer

I = PRT

And plug in the variables you know (I, P, R)

387.50 = 1,550(.125)T

(12.5% becomes .125 after you divide it by 100, because precents are really just fractions out of 100)

387.50 = 193.75T

T = 2

8 0
2 years ago
a ferris wheel rotates 9pi/8 radians prior to making a stop the total height of the ferris wheel is 246 ft how far around did th
Zinaida [17]

Answer:

ferris wheel travel approx = 434.72 ft

Step-by-step explanation:

given data

wheel rotates = 9pi/8 radians

total height of the ferris wheel =  246 ft

solution

we can say here that height of the ferris wheel is same as the diameter of the wheel

and wheel is circular in shape

so we get here first radius of wheel that is

radius = half of diameter    ..........................1

put here value and we get

radius = 0.5 × 246

radius = 123 ft

and

wheel travel distance = length of arc by a angle of wheel rotates

so here length of arc will be

arc length = radius × wheel rotates angle   .....................2

put here value and we get

arc length  = 123 × \frac{9\pi }{8}

arc length = 434.7178 ft

so ferris wheel travel approx = 434.72 ft

4 0
3 years ago
How to identify if the problem is a sample deviation problem or a population deviation problem?
ASHA 777 [7]

Answer:

what?????????????????

7 0
3 years ago
Thomas solved the equation by completing the square. x2−10x+27=0 <br> show work
Ber [7]
(x-3)(x-7)=0
x=3,7
hope this helps!
4 0
3 years ago
Read 2 more answers
Other questions:
  • Fill in the table using this function rule.<br> y = 5x+4
    11·1 answer
  • Why do you think you need to add zero pairs to get the -1- tiles to fit in the rectangle?
    8·1 answer
  • Please Help this is the only one i dont know!!
    8·1 answer
  • The elk population in an area is increasing. This year, the population was 1.076 times last year's population of 1537.
    12·1 answer
  • a x − y = b a ⁢ x − y = b Which of the following equations are equivalent to the equation above? Select all that apply.
    13·1 answer
  • Please help answer this❤️
    10·2 answers
  • Which inequality represents the sentence below?<br><br>two more thwn a numbre is less than 14<br>​
    11·2 answers
  • What is this expression in simplest form?
    12·2 answers
  • Find the circumference and the area plzzz
    8·1 answer
  • Paula has buttons. she gives away 28 buttons. choose the expression that shows the number of buttons paula has left.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!