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3 years ago

Kylie starts with $145 in her piggy bank. Each month she addes $20.

Mathematics

2 answers:

GaryK [48]3 years ago

7 0

Answer: a=145 +22=167

Step-by-step explanation:

pochemuha3 years ago

5 0

Answer:

a=145 +20=165

Step-by-step explanation:

if she starts with 145 and adds 20 you would have 165 so it would be D

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From greatest to least, what are the measures of the first two angles with negative measure that are coterminal with an angle me

Irina-Kira [14]

Answer:

-110 and -470

Step-by-step explanation:

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4 years ago

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amm1812

Answer:

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4 years ago

Mortgage rates: Following are interest rates (annual percentage rates) for a 30-year fixed rate mortgage from a sample of lender

andreev551 [17]

Answer:

98% Confidence interval: (4.144 ,4.498)

Step-by-step explanation:

We are given the following in the question:

4.751, 4.373, 4.177, 4.676, 4.425, 4.228, 4.125, 4.251, 3.951, 4.192, 4.291, 4.414

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{51.854}{12} = 4.321$

Sum of squares of differences = 0.5602

$s = \sqrt{\dfrac{0.5602}{11}} = 0.226$

98% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 11 and}~\alpha_{0.02} = \pm 2.718$

$4.321 \pm 2.718(\frac{0.226}{\sqrt{12}} ) = 4.321 \pm 0.1773 = (4.144 ,4.498)$

3 0

4 years ago

Read 2 more answers

tamaranim1 [39]

Step-by-step explanation:

you must have left out important pieces of the equation.

what I can see and therefore solve is

-G + 2 = -12

-G = -14

G = 14

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2 years ago

A gym membership at one gym costs $10 every month plus a one-time membership fee of $15, and a gym membership at another gym cos

Minchanka [31]

Answer: Let us assume that the number of months after which

the gym memberships will cost the same = x

Then

15 + 10x = 40 + 4x

10x - 4x = 40 - 15

6x = 25

x = 25/6

= 4 1/6

So the membership fee of both the gyms will become same after 4 1/6 months. You can also consider that as after 5 months the membership fees of both the gyms will become same. I hope the procedure is not very complicated for you to understand.

Step-by-step explanation: Hope this helps!!

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3 years ago