All categories

3 years ago

For the equation 2(4x+10)=8x+k what value of k will create an equation with infinitely many solutions?

Mathematics

2 answers:

Komok [63]3 years ago

3 0

20; make both equations equal so whatever you plug in for x will be the same
2(4x+10)=8x+k
8x+20=8x+k
k=20

gregori [183]3 years ago

3 0

8x+k 20 2(4x+10)=8x+k

You might be interested in

Ethan has 3 pounds of nuts .How many ounces of mixed nuts does Ethan have

kogti [31]

That will be 48 ounces of mixed nuts because 1 pound of nuts is 16 ounces so i did 16 times 3 and that is 48

7 0

3 years ago

Use the given values of n and p to find the minimum usual value μ−2σ and the maximum usual value μ+2σ. Round to the nearest hund

lbvjy [14]

Answer:

μ−2σ = 1,089.26

μ+2σ = 1,097.62

Step-by-step explanation:

The standard deviation of a sample of size 'n' and proportion 'p' is:

$\sigma=\sqrt{\frac{p*(1-p)}{n} }$

If n=1139 and p =0.96, the standard deviation is:

$\sigma=\sqrt{\frac{p*(1-p)}{n}}\\\sigma = 0.001836$

The minimum and maximum usual values are:

$\mu-2\sigma = (p-2\sigma)*n\\\mu+2\sigma = (p+2\sigma)*n$

$\mu-2\sigma = (0.96-2*0.001836)*1139\\\mu-2\sigma = 1,089.26\\\mu+2\sigma = (0.96+2*0.001836)*1139\\\mu+2\sigma = 1,097.62$

5 0

3 years ago

The area of the sahara desert is 7 times the area of the gobi desert if the are of the sahara is approximately 3.5 million squar

Andreyy89

Answer: 500,000

Step-by-step explanation:

3.5M/7=500,000

3 0

3 years ago

Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r

GREYUIT [131]

Answer:

Decay
Decrease rate is 8%

Step-by-step explanation:

Given function:

y = 490(0.92)^x

The base of the exponent is 0.92. This represents a decay as 0.92 is less than 1. It would be a growth function is the base was greater than 1.

The rate of decrease is

0.92 times

Percent decrease is

(1 - 0.92)*100% = 8%

7 0

3 years ago

Find the median and mean of the data set below: 13, 6, 47,0

Readme [11.4K]

Answer:

Mean=16.5

Median=9.5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers