<u>Answer:
</u>
The ordered pair value of (x, y) is (6,-11)
<u>Solution:
</u>
Given Equations are
Let 8x + 15y = -117 be Equation 1 and 4x + 9y=-75 be Equation 2.
Solving Equations 1 and 2 to get the value of x and y.
Multiply Equation 2 with 4.
16x + 36y = -300
On dividing the above expression by 2, we get
8x + 18y = -150 (Change the sign to get the value of y).
-8x - 18y = 150 --- eqn 3
Now solving eqn 1 and eqn 3
8x + 15y = -117
-8x - 18y = 150
By cancelling 8x and -8x in eqn 1 and eqn 3
-3y = 33
y = -11
Substitute the value y in Equation 2.
4x + 9 (-11) = -75
4x – 99 = - 75
4x= -75 +99
4x = 24
x=6
Hence the value of x and y is (6,-11).
This entire expression gives the total number of apples required to make 2 pies and 4 cakes.
x is the number of apples for a cake. 3x would be the number of apples it takes to make a pie. 2(3x) would be the apples for 2 pies and 4(x) would be the number of apples for 4 cakes.
Answer:$30
Step-by-step explanation:8+12=20 and I would figure she had another one with a price inbetween the two so I chose 10 and added 20+10=30
The ratio ...
... seniors : juniors = 3 : 2
can be multiplied by 7 to get
... = 21 : 14
indicating there are 14 juniors for the 21 seniors in the choir.
To find the average of an amount of numbers, we simply add them up and divide them by the amount of numbers we have. For example, if we have 1,2, and 3 as our numbers, we can see that we have three numbers. Next, we add them up to get 1+2+3=6. Lastly, we divide 6 by the amount of numbers we have (3) to get 6/3=2 as our average. Applying that here, we see that there are four numbers. Next, we add them up using a calculator to get 5,678.54+3,665.77+4,231.98+4,768.99 =18345.28 . Finally, we divide that number by the amount of numbers we have (using a calculator) to get 18345.28/4=4,586.32, making B your answer.
Feel free to ask further questions, and Happy Halloween!
