Answer:
x = 5
y = 2
Step-by-step explanation:
-3x + 3y = -9
3y = 3x - 9
Equation 1. <em><u>y = x - 3</u></em>
-3x + y = 7
Equation 2. <u><em>y = 3x + 7</em></u>
So, put number 1 equation to number 2's y :
x - 3 = 3x + 7
x -3x = 7 + 3
-2x = 10
2x = 10
x = 10/2
x = 5
And, put x, which is 5 , to the any equation to figure out the y.
This time, I'll use equation number 1.
y = 5 - 3
y = 2
The percent change for centerville is 30% (rounded off to nearest tenth of a percent)
Step-by-step explanation:
Given details-
Centerville during the year 2000-37,065
Centerville during the year 2010-26,102
Per cent change to the nearest tenth of a percent
total change during the time gap of 10 years= Centerville during 2000- Centerville during 2010
⇒ total change during the time gap of 10 years=37,065-26,102
⇒ total change during the time gap of 10 years=10,963
⇒ per cent change= (total change/Centerville during 2000)*100
⇒ per cent change= (10,963/37,065)*100
⇒ 29.57776%
⇒ 30% (The answer has been rounded)
Answer:
<em>The input when the output is 17 is x=6.</em>
Step-by-step explanation:
<u>Functions</u>
Assume the input is called x and the output is the function f(x). Two times the input is 2x. 5 more than that is 2x+5.
Knowing the output of the function is 5 more than 2 times the input, we can write the function as:
f(x)=2x+5
Now find the input x when the output is 17:
17=2x+5
Swap sides of the equation:
2x+5=17
Subtract 5:
2x=17-5=12
Divide by 2:
x=12/6=6
The input when the output is 17 is x=6.
You would have to do... 45 divided by six you woukd get 7 3/6 when you sinplify that you get 7 1/2 if you want to turn that into a decimal you would have to do 1.00 divided by 2 and you would get 7.5
Answer:
1080 orders is made after 4hours
When profit exceeds $1000, the time will be 7:22 PM
Step-by-step explanation:
1. Let No of order be O and time be T
O ∝ T
O = KT
K = O ÷ T
K = 18 ÷ 4 = 4.5
Total no of orders in 4hrs (240min) will be
O = 4.5 × 240 = 1080 orders
2. Total orders made from profit of $1000 is evaluated.
10 orders give $11
x orders will give 909.09091 orders
time required to reach 909.09091 orders is then evaluated
1080 orders is placed in 4hrs
909.09091 orders will be placed in x hours
upon cross multiplication
x = 3.3670034 hours which is equivalent to 202.020202 minutes
When that's added to 4:00 PM, the answer is 7:22PM minutes to the nearest minute.