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
dsp73
4 years ago
11

The sum of the ages of Noi's and Noy's is 26 years. The different between four times Noi's age and two times Noy's age is 28 yea

rs. Find the age of Noi and Noy.
WRITE AS AN EQUATION​
Mathematics
1 answer:
nlexa [21]4 years ago
3 0

Answer:

The age of Noi is 13.333 Years and the age of Noy is 12.67 years

Step-by-step explanation:

The given  information are;

The sum of the ages of Noi and Noy = 26 years

Four times Noi's age - Two times Noy's age = 28

Let the age of Noi = X and let the age of Noy = Y

We have;

X + Y = 26 years.................(1)

4X - 2Y = 28 years.............(2)

Divide equation (2) by 2 to get;

(4X - 2Y)/2 = (28 years)/2 which gives;

2X - Y = 14 years.................(3)

Add equation (3) to equation (1), to get;

X + Y +  2X - Y = 26 years + 14  years

3X = 40 years

X = 40/3 = 13.333 Years

From equation (1), X + Y = 26 years, therefore;

Y = 26 - X = 26 - 13.33 = 12.67 years

Therefore, the age of Noi = 13.333 Years and the age of Noy = 12.67 years.

You might be interested in
Sheila runs 5 miles in 3 hours. The next month she runs 18.75 miles in 3 hours. What is her percent of increase?
Bad White [126]
About 58% but I am not certain I am right
8 0
4 years ago
student borrows $65,000 for business school at 8.5% stated annual interest with monthly repayment over 8 years. Consider this as
lawyer [7]

Answer:

First\ monthly\ payment= $858.69

Step-by-step explanation:

From the Question we are told that

Borrows $65,000

Annual interest  8.5%

Monthly repayment over 8 years

Generally PV of annuity with growth is mathematically represented as

where PV is present value

PV of annuity with growth X= (P/ (r-g)) * (1- ((1+g)/(1+r))^n)

     \frac{P}{\frac{8\%}{y12-0.2\%} } *(1-((1+0.2\%)/(1+8.5\%/12))^(^8^*^1^2^)^)=65000

    196.7213115P* 0.384791918=65000

     196.7213115P=65000/0.384791918

    196.7213115P=168922.4668

     P= 168922.4668/196.7213115

    P= 858.6892063

First\ monthly\ payment= $858.69

5 0
3 years ago
According to market research, a business has a 75% chance of making money in the first 3 years.
algol13

Answer:

There is a 75% chance of sunny skies tomorrow.

Step-by-step explanation:

75% chance is the same likelihood as the business scenario. Hope this helps!

8 0
3 years ago
the distance from Earth to the Sun is approximately 93 million miles about how many gigameters is this...Round to nearest hundre
Ivahew [28]
.093

So .09
;)jsjsjssk
7 0
3 years ago
The base of a ladder is 10 feet from the side of a building. The top of the ladder reaches a window that is 24 feet above the gr
zubka84 [21]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Pythagorus theorem,

here, the perpendicular height = 24 ft and the base = 10ft ,

hence then length of the ladder is the Hypotenuse.

so we get as,

l \:  =  \sqrt{ {24}^{2}  +  {10}^{2} }

l \:  =  \sqrt{576 + 100}

l \:  =  \sqrt{676}

hence, l = 26 ft

so the length of the ladder is 26 feets.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Y= -0.25x + 4.7<br> Y=4.9x - 1.64
    9·1 answer
  • A number plus five more than twice that number is equal to six less than four times the number .Write an equation that models th
    10·1 answer
  • All pieces of pizza must be square with none left over. What is the side length of the largest square pieces into which Juanita
    9·1 answer
  • Find three solutions of the equation y = 9x - 4
    6·2 answers
  • Simplify. (−9−6i)(4−8i) <br> Enter your answer, in standard form, in the box.
    15·1 answer
  • What’s the answer to this problem
    15·1 answer
  • Katrina said that the lines y=-2/3x + 5 and y = -3/2x + 2 are perpendicular. Explain Katrina's error.
    14·2 answers
  • Can someone help me with this!
    9·1 answer
  • Estimate [5 7/8 - 2 3/20] + 1 4/7​
    11·1 answer
  • Suppose that J and K are points on the number line. If Jk=5 and J lies at -12 where could K be located?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!