Assuming you meant square root of 90 it would be
90 equals 3 times the square root of 10
√90 = 3√10
Total shells Sandy had = 5
Shells Mageret got = 3
Balance of Seashells
5 - 3
2
A) Tonya bought 3 games at X price, so 3X would be total amount.
B) Tony's cost was 0.50 less than X, so x-0.50, he bought 4 games, so he spent 4(x-0.50).
C) Set those to equal to solve for x:
3x = 4(x-0.50)
D) Solve:
3x = 4(x-0.50)
Distribute:
3x = 4x - 2
Subtract 4x from both sides:
-X = -2
Multiply both sides by -1:
X = 2
E) Since X is the amount Tonya paid per game, Tony paid X - 0.50, so Tony paid 2 - 0.50 = $1.50 per game.
Check:
Tonya: 3x = 3(2) = $6 total
Tony: 4(x-0.50) = 4(2.00 - 0.50) = 4(1.50) = $6 total
Use this website https://nrich.maths.org/2281
An integer greater than 10 is 46.
An integer less than -15 is -24.
