Answer:
Step-by-step explanation:
Let's solve the given system of linear equations:
a+b = 13
0.750 + 1.15b = 12.55
Let's eliminate b. To do this, solve the first equation for b, obtaining b = 13 - a, and then substitute 13 - a for b in the second equation:
0.750 + 1.15(13 - a) = 12.55.
Next, subtract 0.750 from both sides, obtaining: 1.15(13 - a) = 11.8
Dividing both sides by 1.15 yields 13 - a = 10.26
Then a = 13 - 10.26, or a = 2.74.
Since a + b = 13, b = 13 - 2.74, or 10.26
This person bought 2.74 pounds of apples and 10.26 pounds of bananas.
Point slope form: y-y1 = m(x-x1)
Find slope: (y2-y1)/(x2-x1)
(1-5)/(9+3) = -4/12 = -1/3
Point slope equation: y+5 = -1/3(x+3)
Slope intercept: y = -1/3x - 1 + 5
Final slope int equation: y = -1/3x + 4
Let's break this problem down and solve it step-by-step.
STEP-BY-STEP SOLUTION:
Keep in mind the following:
Two positives together or two negatives together = positive
One positive and one negative together = negative
Okay, now let's begin solving the problem.
= ( 8 ) ( - 5 ) + ( - 7 ) ( 3 )
First we will multiply the brackets together.
= ( - 40 ) + ( - 21 )
Next we will remove the brackets and change the positive ( + ) and negative ( - ) symbol into just a negative symbol, as a positive and negative always equals a negative as stated previously.
= - 40 - 21
Now we will simply subtract 21 from - 40 to achieve our final answer.
= - 61
Hope this helps! :)
Have a lovely day! <3
63360in=1mile
So 63360x15=950400in
The answer is 950400in in 15miles
Hope this helped!
Answer:
262.5
Step-by-step explanation:
V= whl = 6.25 x 3·14 = 262.5