Answer:$36
Step-by-step explanation:
He has sold 6 and made $18 6x2=12 2x18=36
Answer:
x=3
Step-by-step explanation:
15-7x=5x-21
12x=36
x=3
This problem can be solve by using
ration and proportion, since you want to enlarge the picture by not distorting
the image, the new dimensions should be in proportion with the old one.
Let x be length of the image
(5/40 = (x/5)
X = 5(5/4)
<span>X = 6.25 in</span>
Answer: aₙ = [d-(d-n)]*10
where n is the number of questions answered correctly and d is the total amount of questions.
Step-by-step explanation:
By understanding the question we can tell than she will be rewarded for each corrct answer. so, how many wrong answers she/he can have?
d-n= Total number of wrong answers
d- (d-n) = Total number of correct answers
price: 10 for each correct answer, so:
price: [d-(d-n)]*10
Therefore:
aₙ = [d-(d-n)]*10
