Answer: The equation to determine the normal price of each cookie is : 7(c-0.75) = 2.80
Step-by-step explanation:
Hi, the correct form of the answer is:
<em>Cookies are on sale! Today each cookie costs $0.75 less than normal price. Right now if you buy 7 of them it will only cost you $2.80!
</em>
<em>Write an equation to determine the normal price of each cookie (c)
</em>
So, to answer this question we have to analyze the information given:
The normal price of a cookie is "c", if each cookie cost $0.75 less than the normal price, it means:
(c -0.75) = today’s price of a cookie
If you buy 7 of them, 7(c-0.75), it will cost $2.80.
Mathematically speaking:
7(c-0.75) = 2.80
Solving for c :
7c - 5.25 =2.80
7c = 2.80 +5.25
7c = 8.05
c = 8.05/7= 1.15
The normal price of each cookie is $1.15.
This sequence is decreasing by 3 each time. =)
Answer:
Correct option: second one -> Andy and Donald do not collide.
Step-by-step explanation:
To find if the boys collide, we need to find if there is a common value of t where the their x position are equal and their y position are equal. To do this, we make x(t) of Andy equal to x(t) of Donald, , then if there is a value for t, we do the same for y(t) and check if the values of t are equal:
24 + 23t = 12 + t
22t = -12
t = -0.5455 seconds
As the time is negative, it will not occur, so the boys will never collide.
Correct option: second one
Answer:
Choice A.
Step-by-step explanation:
Let x = price of a helmet, y = price of a bat, z = price of a ball.
Company A can provide 9 helmets, 6 bats, and 12 balls for $525.
9x + 6y + 12z = 525
Company B can provide 10 helmets, 8 bats, and 10 balls for $600.
10x + 8y + 10z = 600
Company C can provide 8 helmets, 5 bats, and 15 balls for $500.
8x + 5y + 15z = 500
Answer: Choice A.
15500 times 0.37 is 5735.
$5735
The 11% statement is extra information.
