Answer:
Step-by-step explanation:
Since, the principal amount of the money = $ 360
Annual rate of interest = 3%
Thus, the amount after x years which is increased by 3 %,
Since, this amount represented by y,
Thus, the required equation that represents the amount of money in Josiah’s account, y, after x years is,
x = liters of 5% solution
y = liters of 40% solution
The scientist wants 10 L total of a 20% solution, so
x + y = 10
0.05 x + 0.40 y = 0.20 (x + y) = 2
From the first equation,
y = 10 - x
Substitute this into the second equation and solve for x :
0.05 x + 0.40 (10 - x) = 2
0.05 x + 4 - 0.40 x = 2
2 = 0.35 x
x ≈ 5.714 L
Solve for y :
y = 10 - x
y ≈ 4.286 L
54c3d4 + 9c4d2
Remark
This requires some sort of constant that each of the ratio members is multiplied by.
Call the constant x
Equation
2x + 3x + 7x = 90 Add the left hand side
Solution
12x = 90 Divide by 13
x = 90 /12
x = 7,5
Answer
2x = 2 * 7.5
2x = 15
3x = 22.5
7x = 52.5
Sum = 90 as it should be
Step 2: 2y + 10 = 4y
Step 3: 2y = 10
Step 4: y = 5
Which of the following explains how to correct Step 2 and shows the correct value of y?
The equation should be y + 8 = 4y after division by 2; y = 4
The equation should be y + 8 = 4y after division by 2; y = 6
2 should be distributed as 2y + 16; y = 4
2 should be distributed as 2y + 16; y = 8
Answer:
17,100,720
Step-by-step explanation:
got it right
I assure you the answer is 50!