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Serggg [28]
3 years ago
14

Currently, the sum of the ages of Yumi, Rana and Victoria is 42 years. Four years ago, the sum of the ages of Rana and Victoria

was equal to the current age of Yumi. What is Yumi's current age?
Mathematics
1 answer:
Setler [38]3 years ago
7 0
Y + R + V = 42
but 4 YEARS AGO : (R-4) +(V-4) = Y

Replace Y in the 1st equation by:  (R-4) +(V-4)

(R-4) +(V-4) + R + V = 42

2R - 2V - 8 = 42;  2R -2V  = 50, or R+V=25
IF R+V =25 AND Y + R +V = 42, then Y + 25 = 42 and Y =17

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PLEASE HELP NOBODY WILL HELP ME I WILL GIVE BRAINLIEST
d1i1m1o1n [39]

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

<u>Then sub of the candy bars:</u>

  • p + b = 220
  • Payday candy bars worth ⇒ $2p
  • Baby Ruth candy bars worth ⇒ $3b
  • Total ⇒ $600

1. <u>Required equations:</u>

  • p + b = 220
  • 2p + 3b = 600

2. <u>Solving by substitution:</u>

p = 220 - b, consider it in the second equation

  • 2(220 - b) + 3b = 600
  • 660 - 2b + 3b = 600
  • 660 + b = 600
  • b = 660 - 600
  • b = 60

60 Baby Ruth candy bars sold

4 0
2 years ago
What is the value of x?
barxatty [35]

Answer:

Step-by-step explanation:

x² = 40² + 9²

   = 1600 + 81

x² = 1681

x = √1681

x= 41

3 0
3 years ago
What is 23/56 + 34/100
Phoenix [80]

Answer:

0.750714286

Step-by-step explanation:

7 0
2 years ago
Suppose you draw a card from a well shuffled deck of playing cards what is probability of drawing a ace
Tasya [4]
So there are a totally of 52 cards right?(not counting jokers because jokers are not in official cards)
And there are 4 aces right?
So there are 52 outcomes and 4 of them are aces.
So when we write probabilities we write it in fraction form where the total number of outcomes is the denominator and the ones you want to get are the numerator OK?
So the total number is outcomes is 52 and becomes the denominator and 4 the number of aces become the numerator.
So 4/52 right?
And we now have to simplify it right?
And so we divide by the highest common factor right?
In this case 4 because there isn’t other numbers that are factors and greater than 4.
So 4 divided by 4/52 is 1/13 right?
4 goes into 4 1 time and 13 times into 52.
So your answer is 1/13
3 0
3 years ago
Use compatible numbers to estimate the quotient 5,514÷82
Sphinxa [80]
The answer is 67 because 67 x 82 is 5,494 which us close to 5,514
5 0
3 years ago
Read 2 more answers
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