Answer:
If x=5, the solution would be 3.
S = # of salads
d = # of drinks
$6.5s + $2d = $836.5
s + d =209
1. Isolate a variable.
s = 209-d
2. Plug in.
6.5 (209-d) + 2d = 836.5
1358.5 - 6.5d + 2d = 836.5
-4.5d = -522
d = 116
<span>s = 209 - 116 = 93</span>
Answer:increased percent = 66.67%
Step-by-step explanation:
The value of an autographed baseball card increased from 39$ to $65. This means that the price of the autographed baseball card increased from the original price to the new price by a certain percentage.
Let x percent = the percentage increase of the price of the autographed baseball card from the original price to the new price.
Percentage increase =
(New price of price of the autographed baseball card - the original price of the autographed baseball card) / the original price of the autographed baseball card × 100
From the information given,
New price of price of the autographed baseball card - the original price of the autographed baseball card = 65 - 39 = $26
Percentage increase = 26 / 39 × 100
= 66.67 %
j = Jana's age
s = sister's age (because you don't know what their ages are)
j + 3 = s
<u>Jana's age</u>(j) <u>plus</u>(+) 3 <u>equals</u>(=) her <u>sister's age</u>(s).
Answer:
D) arccsc (x) = arcsin (1/x)
Step-by-step explanation:
Here's how you can prove it: Consider a right triangle with hypotenuse 1 and a side length 1/x. If θ is the angle opposite of 1/x, then:
sin θ = 1/x
and
csc θ = x
Solving for θ:
θ = arcsin (1/x)
θ = arccsc (x)
Therefore:
arccsc (x) = arcsin (1/x)
