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2 years ago

Calculate the mean of the electric bills for Family A. Round your answer to the nearest cent.

Mathematics

1 answer:

suter [353]2 years ago

5 0

Answer:

The mean for Family A=78.585 , ≈78.59

Step-by-step explanation:

I solved this with a TI-84 CE calculator. To do this you press stat-edit-put in the numbers-2nd+mode-stat-right arrow key-calc-1_Var_Stats-Calculate. Then X with the _ over it would be your mean.

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Martin is making a candy that contains 90% milk chocolate and the rest caramels. The candy has 3 pounds of caramels. Part A: Wri

Oduvanchick [21]

Answer: The equation using one variable that can be used to find the total number of pounds of milk chocolate and caramels in the candy is $0.9x+3=x$

x= Weight of candy in pounds

0.9x = Weight of milk chocolate.

Step-by-step explanation:

Given, Martin is making a candy that contains 90% milk chocolate and the rest caramels. The candy has 3 pounds of caramels.

Let x= Weight of candy in pounds

Then, 0.9x = Weight of milk chocolate.

Then, According to the question

$0.9x+3=x\\\\\Rightarrow\ x-0.9x=3\\\\\Rightarrow\ 0.1x=3\\\\\Rightarrow\ x=\dfrac{3}{0.1}=30$

So, Weight of milk chocolate. = $0.9\times30=27$

Hence, the equation using one variable that can be used to find the total number of pounds of milk chocolate and caramels in the candy is $0.9x+3=x$

3 0

4 years ago

A band sells T-shirts at their concerts. After one concert, they sold 320 out of 400 black T-shirts and 270 out of 300 blue T-sh

Paha777 [63]

Percentage of black T-shirt sold = 320/400 x 100 = 80%

Percentage of blue T-shirt sold = 270/300 x 100 = 90%

Answer: There is a greater percentage of Blue T-Shirt sold.

7 0

4 years ago

"determine the ratio of the volume of a" cone to the volume of a cylinder with the same height and base radius:

hichkok12 [17]

Volume of cone is 10
if the radius is r and height is h
while volume of cylinder is pi r 2nd power h,
volume of cone is 1/3 pi r 2nd power h.
hence with same r and h the volume of cone is one-third of that of cylinder and hence
volume of cone is 10.

4 0

3 years ago

Joe has 5 dimes and 4 pennies. Jamal has 2 dollars, 4 dimes, and 5 pennies. Jimmy has 6 dollars and 4 dimes. They want to put th

sesenic [268]

Answer:

no they had $9.39

Step-by-step explanation:

i just added them all together

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3 years ago

27x^3-30x^2 y+40xy^2-64y^3

Serga [27]

(3x-4y)(9x^2+2xy+16y^2)

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3 years ago