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elena55 [62]
3 years ago
9

Tanya purchases gifts for two friends The first is a purse for $19.99, and the second is pair of shoot. Her total is $45.67 befo

re tax, How much did she spend on the shoes?​
Mathematics
1 answer:
zloy xaker [14]3 years ago
7 0

Answer:

$25.68​

Step-by-step explanation:

Cost of purse = $19.99

Cost of shoe pairs = x

Total cost = $45.67

Total cost = cost of purse + cost of shoe pairs

$45.67 = $19.99 + x

x = $45.67 - $19.99

x = $25.68

Hence, cost of shoe pair = $25.68

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What is -3 - -10 + (|-7| - |8|) =
svetlana [45]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP!!!!!!!!
NemiM [27]
You can add 16 up until it reaches 120 If it goes over 120 then delete one of the 16 to only get 7 the answer is 7
7 0
3 years ago
Solve for x, given the equation Square root of x plus 9 − 4 = 1.
Daniel [21]
ANSWER

The value of x is
16.


EXPLANATION

We want to solve the equation,


\sqrt{x + 9}  - 4 = 1

The first step is to add 4 to both sides of the equation to obtain,


\sqrt{x + 9}   = 1 + 4



We simplify the right hand side to obtain,


\sqrt{x + 9}  = 5



We now square both sides of the equation to obtain,



(\sqrt{x + 9}  ) ^{2}  =  {5}^{2}



This simplifies to


x + 9= 25



We solve for x to obtain,



x = 25 - 9


This implies that,


x = 16

4 0
3 years ago
Use inverse functions where needed to find all solutions of the equation in the interval [0, 2π). (Enter your answers as a comma
Zina [86]
I'm assuming you meant:

tan^{2}x + tanx - 30 = 0
Let u = tan(x)

Thus, we can rewrite it into a quadratic.

u^{2} + u - 30 = 0
(u + 6)(u - 5) = 0
u = -6 or u = 5

Hence, tan(x) = -6 or tan(x) = 5
x = tan^{-1}(-6) or x = tan^{-1}(5)

Rewriting it in general form, we get:
x = \pi \cdot n + tan^{-1}(5), n \in Z
x = \pi \cdot n - tan^{-1}(6), n \in Z

From there, you can find your solutions from [0, 2\pi)
6 0
4 years ago
In a right triangle, angle C measures 40. the hypotenuse of the triangle is 10 inches long. what is the approximate length of th
IrinaVladis [17]

Since angle C is not 90 degrees, it's one of the acute angles
in the right triangle.


               (The side adjacent to angle C ) divided by (hypotenuse)

is the cosine of angle C .       


                    (adjacent) / (10 inches)  =  cos(40 degrees)

Multiply each side by (10 inches):

                    Adjacent side = (10 inches) x cos(40) =

                                              (10 inches)  x  0.766  = 

                                                              7.66 inches   (rounded)
 
6 0
4 years ago
Read 2 more answers
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