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astra-53 [7]
3 years ago
12

A store bought a mountain bike at a cost of $51.48 and marked it up 115%. Raymond bought it and paid 6.5% sales tax. What was hi

s total cost? If necessary, round your answer to the nearest cent.
Mathematics
1 answer:
Step2247 [10]3 years ago
3 0

Answer:

117.88

Step-by-step explanation:

51.48*1.15=59.202

51.48+59.202=110.682

110.682*.065=7.19433

110.682+7.19433=117.87633

Rounded: $117.88

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Write and algebraic expression for nine times of the square of a number
salantis [7]

Answer:

9• x2

Step-by-step explanation:

Well you have 9 and then you times(•) then X is the number we don’t know. Then x would be squared(like the image below).

3 0
4 years ago
8. Solve the system of equations using substitution.
Elodia [21]

Answer:

D

Step-by-step explanation:

In order to solve this we need to plug in the answer choices and make sure they work for BOTH answers!

Let us start with option A. (6,3)  3 = 4(6) + 6     = 3 = 30 This is automaticly wrong because 3 doesnt equal 30. There is no need to try it on the second equation since the first one was wrong.

Next answer choice, B  (3,6)  6 = 2(3) =   6=6. The second equation works perfect for this. Now we have to make sure that it works for the first one as well. 6 = 4(3) + 6   = 6 = 18 which is wrong.

Next, C.  (1,2)   2 = 2(1) = 2=2 Right now lets check the other equation.

2 = 4(1) + 6 = 2=10. Wrong

Last, D. (-3, -6)    -6 = 2(-3)  = -6 = -6 Right now lets check the other equation.

-6 = 4(-3) + 6 = -6 = -6. CORRECT. Answer choice D works for both equations.

Sorry for the wait of response.

8 0
3 years ago
In the standard (x,y) coordinate plane, what is the area of the circle x^2 + y^2 =169?
schepotkina [342]

Answer:

169π

Step-by-step explanation:

circle eq: (x-a)²+(y-b)²=r², where (a,b) is center and r is radius

r²=169

r = ±13

since a radius length must be positive, r = +13, not -13

A of circle: πr²

r = 13

169π

given that the circle eq has r², you could've noticed that you can take the constant in the circle eq and multiply that by π to get the same answer

6 0
3 years ago
Which expresion is equivalent to 3x+14+3x+10 ?
victus00 [196]

123 because the udrer ebas wheel

5 0
3 years ago
PLEASE HELP PLEASE HELP HELP !!!!!!!!!!!!
Oxana [17]

Answer:

-11(-12)=132

Step-by-step explanation:

First divide 132 by negative 11 and get -12.

Then you connect -12 into the equation by using paraenthisies so its not a mess.

Last check your answer. -11 times -12 is equal to positive 132.

7 0
3 years ago
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