Well, she drove 200 miles, at a pay of $0.60 per mile travelled.
<span>200 * 0.6 = 120 </span>
<span>She got payed $120 for her 200 miles traveled. </span>
<span>Since she gets payed $50 per day, and she got paid $1500 for her food and lodging, she traveled for 30 days as 1500/50 = 30 (Part C answer) </span>
<span>If you were to determine her total pay: </span>
<span>Using variables x for: number of days spent on trip </span>
<span>Y: number of miles traveled. </span>
<span>Total pay = 50x + 0.6y </span>
<span>If you'd rather have only the equation for the number of days spent on her trip: </span>
<span>X = (1620- 0.6(200))/50. (Part A answer) </span>
<span>Solving for x: </span>
<span>X = (1620 - 0.6(200))/50 </span>
<span>X = (1620 - 120)/50 </span>
<span>X = (1500)/50 </span>
<span>X = 30 (Part B answer)</span>
Answer:
1 Roll = $2.50
1 Battery = $1.50
Step-by-step explanation:
From the question we know that,
8 Rolls + 2 Batteries = $23, and
6 Rolls + 2 Batteries = $18
We can subtract the two equations to obtain a third equation,
(8 Rolls + 2 Batteries) - (6 Rolls + 2 Batteries) = $23 - $18
(8 - 6) Rolls + (2 - 2) Batteries = $23 - $18
2 Rolls = $5
Divide RHS and LHS by 2, to obtain the cost of a roll,
2 Rolls / 2 = $5 / 2
1 Roll = $2.50
If one roll costs $2.50 then 6 rolls cost $15,
6 x $2.50 = $15
We plug in this value into the second equation,
$15 + 2 Batteries = $18
Subtract both sides by $15,
$15 + 2 Batteries - $15 = $18 - $15
2 Batteries = $3
Divide RHS and LHS by 2 to obtain the final answer,
2 Batteries / 2 = $3 / 2
1 Battery = $1.50
You just put all of the like terms together, if it has an X combine it and if it doesn't have an X combine it. You end up with 4x-5
Answer:
The decimal place accuracy of a number is the number of digits to the right of the decimal point. The decimal point is a period written between the digits of a number. If there is no decimal point, it is understood to be after the last digit on the right and there is no place (zero place) accuracy.
The significant digits of a number are those digits that are most accurate. If a number has no place accuracy and there is no string of zeroes ending the number on the right, all the digits are significant. If a number has no place accuracy and there is a string of zeroes ending the number on the right, the significant digits are those digits to the left of the string of zeroes. If a number has a decimal point, the significant digits are the digits starting from the first non-zero number on the left to the last digit written at the right end. In either case the number of significant digits is just the count of these digits.
Decimal notation is the regular written format for a number. Scientific notation of a number just writes the significant digits followed by an appropriate power of ten.
The most common form of scientific notation inserts a decimal point after the first significant digit, follows the significant digits with times, "x", and then 10 to a power. If the original number is at least one, the power is the number of digits between the decimal point and the first number on the left. If the number is less than one, the power is the negative of the number of digits to the right of the decimal point up to and including the first non-zero number.
Calculators and computer software sometimes write scientific notation with the significant digits followed by the letter "E" and then the power of 10, without writing the base. A decimal point is usually inserted after the first significant digit.
Step-by-step explanation:
Answer:
Commutative Property
Step-by-step explanation:
Commutative property, changes the order of the addends does not change the sum
Ex)
16+45=45+16
