Answer:
$18,900
Step-by-step explanation:
$17,500 x 1.08= $18,900
really need brainliest!!
Let the Price of 1 magzine = x
Margin on 1 Magzine = (10%)(x) rupees = 0.1 x
Margin on 42 Magzines = 42(0.1 x) = 4.2 x
Also
Let the Price of 1 books = y
Margin on 1 Book = (15%)(y) rupees = 0.15 y
Margin on 14 Books = 14(0.15 x) = 2.1 y
Basic Pay of Adam = 200
Amount that Adam earned last week = 200 + 4.2 x + 2.1 y
2.3
Answer: 0.75. It's pretty obvious.
Answer is b hope this helps brainleist is appreciated
The answer is B. (15,18)
Solution:
First, let's set the variables first.
X = dollars per hour to clean the floor
Y = dollars per hour to clean the rest of the house
For the first statement, "<span>2 hours to clean floors and 3 hours to clean the rest of a house, the total charge is $84"
We can put it into an equation.
2X + 3Y = 84 </span>⇒ equation 1
For the first statement, "<span>1 hour to clean floors and 4 hours to clean the rest of a house, the total charge is $87'
X + 4Y = 87 </span>⇒ equation 2
Multiply first equation 2 by 2 to make the coefficient of both equations 1 and 2 the same.
Using elimination method in solving for x and y,
(equation 1) 2X + 3Y = 84
(equation 2) 2(X + 4Y) = 87
2X + 8Y = 174 ⇒ equation 3
Next, subtract equation 3 from equation 1.
2X + 3Y = 84
- (2X + 8Y = 174)
-------------------------
- 5Y = -90
Y = 18
Find X when Y = 18
@ equation 1 : 2X + 3Y = 84
2X + 3(18) = 84
2X + 54 = 84
2X = 84 - 54
2X = 30
X = 15
The answer is in ordered pairs of cleaning the floors and to clean the rest of the house. So, in the form (X,Y).
Answer: (15,18)
