Answer:
B. -4.
Step-by-step explanation:
Answer:
x = 3, y = -2
Step-by-step explanation:
Solving the bottom equation for y, we have y = 4 - 2x. Substitute that into the top equation, and solve for x.
4x - 3(4 -2x) = 18
4x - 12 + 6x = 18
10x - 12 = 18
10x = 30
x = 3
From this, we have y = 4 - 2(3) = 4 - 6 = -2
Answer:
Selling price should be $21 per unit.
Step-by-step explanation:
Cost price of manual = Fixed price + variable cost per package×Number of units sold
= 780000+19.85×1250000 = $25592500
Now we know Learning center wants a profit = $650000
Then profit = sale price - cost price
650000=sale price - 25592500
Sale price = 650000+25592500 = $26242500
This is the sale price of 1250000 units then selling price per unit should be = Total selling price/Number of units sold
= $26242500/1250000 =20.994 or $21
Selling price should be $21 per unit.
4 can be added to 5, and 3 can be added to 3. This should then give you a ratio of 9:6, which reduces to 3:2!
13 + 22 x 13-(-22) =783
Rules of addition and subtraction are :
1. - x - = +
2. + x - = -
3. - x + = -
In English, minus(-) multiplied(×)by itself(-) equals to addition(+).
Plus sign (+)or addition multiplied by minus equals minus :) be happy
