Answer:
42
Step-by-step explanation:
We know that 10x + 6y = 7, and so
6(10x + 6y) = 6(7) = 42
Let's set up an equation.
smaller number = x
larger number = 2x - 5
Now set up the equation so that the larger number plus the smaller number adds up to 43.
x + 2x - 5 = 43
3x - 5 = 43 ( I added the x and 2x)
3x = 48 ( I added 5 to both sides)
x = 16 (I divided both sides by 3)
Now let's check it. Substitute 16 for every time there is an x.
16 + 2(16) - 5 = 43
16 + 32 - 5 = 43
48 - 5 = 43
43 = 43
It checks. x is equal to 16, so that means:
smaller number = 16
larger number = 27
Hope this helps =)
10 oats must be added to make it 50% of oats in the animal feed
I think you forgot to list the following.
Area of original rectangle = 21 • 15 = 315 yd^2
Area of new rectangle is 3 times the original size: 3^2 • 315
2835 yd^2.
Other way:
3(21) • 3(15)
63 • 45
2835 yd^2
//Hope it helps.
