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hailey and kacie are selling candles to raise money.
• hailey is selling candles for $4 each and has already raised $160.
• kacie is selling candles for $7 each and has already raised $70.
which equation can be used to find c, the number of candles each girl needs to sell so that the total amount raised is the same for both hailey and kacie?
a)
4c + 7c = 160 + 70
b)
4c + 70 = 7c + 160
c)
4c + 160 = 7c + 70
d)
4 + 160 = 7c + 70c

The answer is a

Step-by-step explanation:

A)

Step-by-step explanation:

Let c represents the number of candies sold.

Given : Hailey is selling candles for $4 each and has already raised $160.

i.e.    (1)

Kacie is selling candles for $7 each and has already raised $70.

i.e.    (2)

Total amount raised is given by :-

  Add (1) and (2)

Hence, the equation can be used to find c, the number of candles each girl needs to sell so that the total amount raised is the same for both Hailey and Kacie will be

answer: the equation matches the regression

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.