$15.99x2 +2.99+3.99= subtotal
subtotal x .089= Tax due
tax due + subtotal = total spent
38.96*.089= 3.46
3.46 +38.96= 42.42744
so altogether with tax, Joseph and Tyler spent $42.43 at the hobby store
11.4 because do 57 divided by 5 equals 11.4 to run each mile
The answer is 3 for all of them
Answer:
first number = 78
second number = 72
third number = 156
Step-by-step explanation:
first number = a
second number = b
third number = c
we have
b=a-6 equation 1
c=2a equation 2
a+b+c=306 equation 3
using equation 1 and equation 2 in equation 3 we have
a+a-6+2a=306
4a=306+6
4a=312
a=312/4
a=78= first number
b=78-6=72=second number
c=2*(78)=156 third number
Answer: 14.967
Step-by-step explanation:
Use Pythagorean Theorem to find the missing length.
a² + b² = c²
x² + 10² = 18²
x² + 100 = 324 [Subtract 100 from both side]
x²= 224
√x² = √224 [solve the square root from both sides]
x ≈ 14.967
