Answer:
The number of candles each girl needs to sell so that the total amount raised is the same for both is
<em>Hailey </em>70 candles
<em>Kacie </em>40 candles
Step-by-step explanation:
Let
x------> the number of candles sold
y----> total amount raised
we know that
<em>Hailey's equation</em>
-----> equation A
Please note that Hailey has already raised $160, so he has sold 40 candles.
<em>Kacie's equation</em>
-----> equation B
Please note that Kacie has already raised $70, so he has sold 10 candles.
equate equation A and equation B solve for x
The number of candles each girl needs to sell so that the total amount raised is the same for both is
<em>Hailey</em>
40+30=70 candles
<em>Kacie</em>
10+30=40 candles
It is already rounded to the nearest hundreth. .5 is a tenth, .06 is a hundreth.
<h3>
Answer: 8/17</h3>
==========================================================
Explanation:
The rule is
If A+C = 90, then sin(A) = cos(C). We could also say cos(A) = sin(C).
I recommend drawing out the picture of what's going on. See below.
sin(A) = 8/17 has the opposite side 8 over hypotenuse 17.
cos(C) = 8/17 has 8 as the adjacent side now. The hypotenuse stays the same.
So that's why sin(A) = cos(C).
Answer:
3x²+4x-2
Step-by-step explanation:
-
are not like terms. To make them like terms, you have to multiply the first fraction by 3x, and the second by 2.
This makes it 
-
, which can be expanded to 
-
.
This can be simplified to 
.
The numerator is therefore 3x²+4x-2.
a pair of jenas that sell for $49
rate of tax is 6%
cost of that jeans is ?
Let the cost of jeans = x
through question
or, $49 = X + X×6%
or,$49 = X + X×6/100
or, $49 = 106X/100
or, $4900 = 106X
or, X = $4900/106
: X = $46.226
thus ; the cost of jeans is $46.226
