Answer:
10(3x-2)
Step-by-step explanation:
find a common factor in both variables and then divide both variables by that common factor, then simplify if needed.
this is how you will work every problem like this
Answer:
10
Step-by-step explanation:
32 - 12 (because C is 12 years younger) = 20
20 / 2 (because <em>twice</em> Anna's age, so we do the inverse) = 10
Anna is 10 years old.
Hope this helps!
4.5% = 0.045
so
$39.98 x 0.045 = $1.80
answer
sale tax = $1.80
Answer: (-2, -1)
Step-by-step explanation: Since these lines are already graphed, we are looking for their point of intersection. This point where the two lines intersect will represent the <em>x</em> and <em>y</em> that is the solution to this system of equations.
The two lines intersect in quadrant III
where <em>x</em> and <em>y</em> are both negative.
When finding the coordinates of a given point,
be very careful with your signs.
Let's just do a quick review on the coordinate system. On the x-axis, left means negative and right means positive and on the y-axis, down means negative and up means positive.
So to find the coordinates for this point, we start at the origin.
Then we move to the left 2 and down 1 so that's (-2, -1).
So the solution to this system is (-2, -1).
28. The ratio of games they won to total games played = 12: 14 = 6: 7.
29. Max's pay rate is 9.50 dollars per hour.
30. The value of n is 9.
Step-by-step explanation:
Step 1; Heather's team won 12 games out of 14. To find the ratio of games won to the total number of games we divide the number of games won to the number of games played.
The ratio of games won to games played = 12: 14, dividing both sides by 2 we simplify the ratio. So the simplified ratio is 6: 7.
Step 2; Max earns $380 for working 40 hours. So to find how much he earns an hour we divide the total money earned in n hours divided by n number of hours.
Money earned per hour = 
= $9.50. So Max's pay rate per hour is $9.50.
Step 3; The given proportion is
= 
, to solve this we keep n on the left-hand side while we multiply the 12 on to the other side
n = × 12 = 
× 12 = 
= 9.
