Answer:
model a: 9 presses
model b: 9 presses
Step-by-step explanation:
let x=model a and y=model b.
If asanji has 28 printing presses, we can say that x+y=18.
If he can print 1260 books in a day, we can say that 80x+60y=1260.
Now, We can solve the system of equation by solving an equation in terms of any variable. You can choose any variable. I chose x. x+y=18, So if we subract y from each side, we get x=18-y. Now, we can substitute that in the other equation. Thus, 80(18-y) +60y=1260. If we continue to solve for y, 1440-80y+60y=1260, 1440-20y=1260, subtract 1440 from each side, which gives you -20y=-180, and divide - 20 and you get y=9. Now, substitute the 9 in the x+y=18 to find x. Thus, x+9=18, and x=9. So, Asanji has 9 press of Model A and 9 presses of Model B.
- The centimeter is defined as a unit of lenght. Its symbol is: "cm".
- 1 centimeter=10 milimeters.
- The milimeter is defined as a unit of lenght and its symbol is "mm".
1. If you want to convert 47 milimeters to centimeters by using proportions, you have:
10 mm/1 cm=47mm/x
2. Then, you only have to clear the "x":
(10 mm)x=(47mm)(1 cm)
x=(47 mm)(1 cm)/10 mm
3. Therefore, the result is:
x=4.7 centimeters
The system has one solution, x = 8, y = 3
Answer:
D. 20 yds
Step-by-step explanation:
✔️First, find the distance across across the pond on the drawing using Pythagorean Theorem:
Distance across = √(6² + 8²) = √100
Distance across on drawing = 10 in.
✔️Next, find the actual distance using the scale of 1 inch : 2 yards:
The scale implies that,
1 inch represents 2 yards
Therefore:
10 inches will represent = 10 × 2 = 20 yards
15% of 900 is 135.
900-135=765
The answer is $765
