42n, you can't take the "n" away. The "n" means times a number, so I I write n=2, then the expression will be 42 x 2, substitute the n with a 2
Answer:
Step-by-step explanation:
If "a" represents the number of adult smoothies sold, then 260-a is the number of smoothies sold to children. The total revenue is ...
3a +1(260-a) = 675
2a +260 = 675 . . . . . . eliminate parentheses
a + 130 = 337.5 . . . . . . divide by 2
a = 207.5 . . . . . . . . smoothies sold to adults
260-a = 52.5 . . . . . smoothies sold to children
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For the given numbers, this is the way it works out. The "half" values suggest there is a typo somewhere, possibly in the curriculum material. Talk to your teacher about this one.
The painting's original price was $3,500.
Step-by-step explanation:
Step 1:
The price now is $500 lesser than 3 times the original price. So
The current selling price = (3 × original price) - $500.
If the current selling price is y and the original price is x, then
Step 2:
For this question, we have 
. Substituting this in the equation, we get
So the original price of the classic painting was $3,500.
1 km = 1000 meters. You want to convert 2 km to meters. Multiply
1000 meters
2km by -------------------- and note that "km" will cancel out. What's left?
1km
By using the formula a=bh, we would multiply 5×2 (10), 6×2 (12) (I got this because of the middle 4 by 2, the part that overlaps is 2 feet), and 4×2 (8). Then, we would add everything up and you would get 30 sqr. ft. Hope this helps!
