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balandron [24]
3 years ago
15

(5x+3y) - (2x-7y) +8x

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

11x + 10y

Step-by-step explanation:

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hot dog buns are sold in packages of 8 and 12. taro bought 192 total buns for a party. This is represented by the function 8x +
Lelu [443]
Here is the graphical representation of the function you provide.

You can see the the points in which the line intersects each axis.

Every point in the line is a possible option for which hot dog package was bought.

For example, Taro might have bought 0 of the packages of 8, and 16 packages of 12.

or He might've bought zero packages of 12, and 24 packages of 8.

6 0
3 years ago
Another one: (12 - 7.5) - 7
mixas84 [53]

Answer:

-2.5

Step-by-step explanation:

Plugged into calculator

5 0
3 years ago
6. A car dealership would like to estimate the mean mpg of its new model car with 90% confidence. The population is normally dis
Yakvenalex [24]

Answer:

92.9997<\mu<99.5203

Step-by-step explanation:

Using the formula for calculating the confidence interval expressed as:

CI = xbar ± Z * S/√n where;

xbar is the sample mean

Z is the z-score at 90% confidence interval

S is the sample standard deviation

n is the sample size

Given parameters

xbar = 96.52

Z at 90% CI = 1.645

S = 10.70.

n = 25

Required

90% confidence interval for the population mean using the sample data.

Substituting the given parameters into the formula, we will have;

CI = 96.52 ± (1.645 * 10.70/√25)

CI = 96.52 ± (1.645 * 10.70/5)

CI = 96.52 ± (1.645 * 2.14)

CI = 96.52 ± (3.5203)

CI = (96.52-3.5203, 96.52+3.5203)

CI = (92.9997, 99.5203)

<em>Hence a 90% confidence interval for the population mean using this sample data is 92.9997<</em>\mu<em><99.5203</em>

4 0
3 years ago
Which expression can you use to find 16÷45?
Serga [27]

Answer:

☆<《<em><u>HOPE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>WILL HELP YOU</u></em><em><u> </u></em><em><u>》</u></em><em><u>></u></em><em><u>☆</u></em>

Step-by-step explanation:

Exprassion is 16/45--x=0

7 0
3 years ago
Read 2 more answers
Four decreased by the product of a number and 7 is equal to 11
Nana76 [90]

Answer:

See image below:)

Step-by-step explanation:

5 0
3 years ago
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