There are 6 skates in store with 5 wheels.
<h3>What is Equation?</h3>
Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign.
Here, Let the number of 4 wheel skates in display be x
and the number of 5 wheel skates in display be y
Total number of skates = 17
Total number of wheel = 74
Now, according to question
x + y = 17 ................(i)
4x + 5y = 74 ..................(ii)
From equation (i), we get
x = 17 - y ................(iii)
put the value of y in equation (ii), we get
4(17 - y) + 5y = 74
68 - 4y + 5y = 74
y + 68 = 74
y = 6
Put the value of y in equation (iii), we get
x = 17 - 6
x = 11
Thus, there are 6 skates in store with 5 wheels.
Learn more about Equation from:
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- the first number,
- the second number,
- the third number,
- the nth number.