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sashaice [31]
3 years ago
13

The probability that you will get grounded if you have a bad grade is 85%. The probability that you will get grounded and have e

xtra chores is 50%. What is the probability that you will have extra chores given that you are already grounded? Express your answer as a percent.
Mathematics
2 answers:
Westkost [7]3 years ago
5 0
50% since we are already grounded.
marusya05 [52]3 years ago
3 0
Your answer is 
50n
23n
5
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can someone please help me find the surface area of the pyramid with an equilateral triangle for a base
ioda

To obtain the total surface we have to calculate the surface of the 4 triangles and add up the areas (remember that the area of a triangle is (b*h)/2 , b is the base, h is the height ).

We will caculate first the area of the base triangle for that we considerer the fact that it is an equilateral triangle with sides of lenght 6 cm, now we calculate the height, I am going to draw please wait a moment

using the pythagorean theorem we have that

\begin{gathered} h^2=6^2cm^2-3^2\operatorname{cm}=27cm^2 \\ h=\text{ }\sqrt[]{27\text{ }}cm \end{gathered}

Then, the area of the triangle is 6*h/2 = 3h = 15.59 cm^2.

Now we calculate the area of the other 3 triangles, notice that those triangles have the same base and height so we will calculate for one of them and multiply by 3. From the image we know that the height is 15cm and the base is 6 cm so the area is 45cm^2, and 45*3 cm^2 = 135cm^2.

Finally we add up all the areas:

135cm^2+15.59cm^2=150.59cm^2

6 0
11 months ago
What is the value of the expression below when z = 4?<br> 10z - 3
sergey [27]

Answer:

Your correct answer is 37

Step-by-step explanation:

Evaluate for z = 4

(10)(4)−3

(10)(4)−3

= 37

7 0
3 years ago
HELP HELP HELP I WILL GIVE BRAINLIEST YALL BETTER NOT GIVE ME A NOT SMART ANSWERS IF YOU DO ILL REPORT THE QUESTION :/
monitta

Answer:

C

Step-by-step explanation:

Multiply ben (y) by 4 since dave has 4x more and add % since jeff has 5 more than Daves total

Hope this helps ^_^

5 0
3 years ago
Five times a number is the same as 30 more than 8 times the number.find the number
Goshia [24]

Answer:

hey here's your answer!☺️

since number = n

so, 5 times of number = 5×n = 5n

and , 30 more than 8 times the number = 8n + 30

so, According to the question,

equation formed :-

" 5n = 8n + 30 "

hope it is helpful ✌️!

6 0
3 years ago
Which statement is true about 7/10 and 2/6?
77julia77 [94]

Answer: The third answer

Step-by-step explanation:

7/10 is 0.7 and 2/6 is 0.33, 2/6 would be less than 1/2 because 1/2 is 0.5, 0.7 is greater than that benchmark

5 0
3 years ago
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