Answer:
-2.9
Step-by-step explanation:
-10x + 1 + 7 = 37
Combine like factors.
-10x + 8 = 37
Subtract 8 from both sides.
-10x = 29
Divide both sides by -10.
x = -2.9
<span>The number 80 is <span>25%</span> of <span>320</span></span>
Step-by-step explanation:
According to Boyle's Law :
Answer:
7.81 dollars
Step-by-step explanation:
20 which was given to
take away the cost of the bill of 12.19
which will give you how much change you will need to give back
Answer:
AC = 25
Step-by-step explanation:
Since ∠A = ∠C then the triangle is isosceles, thus BC and AB are congruent, that is
BC = AB, substitute values
7x - 1 = 5x + 5 ( subtract 5x from both sides )
2x - 1 = 5 ( add 1 to both sides )
2x = 6 ( divide both sides by 2 )
x = 3
Hence
AC = 6x + 7 = (6 × 3) + 7 = 18 + 7 = 25
