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3 years ago

Solve the following: 4x-3=2x+7 Thanks :)

Mathematics

2 answers:

jasenka [17]3 years ago

7 0

Answer:

Step-by-step explanation:

4x-3=2x+7

-2x -2x

2x-3=7

+3 +3

2x=10

2x/2x = x

10/2=5

x=5

Musya8 [376]3 years ago

5 0

Answer:

6x+10 i think is right(sorry if its not)

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Simplify the Complex fraction 2/3/1/3

ale4655 [162]

Answer:

Step-by-step explanation:

We can interpret the fraction $\dfrac{2/3}{1/3}$ as division: 2/3 divided by 1/3. What that expression asks is "how many times does 1/3 go into 2/3?" And that number is 2.

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3 years ago

A rectangle has a length of 15.8 inches and a width of 11.9 inches. What is the area of the rectangle? Enter your answer as a de

pshichka [43]

Answer:

Hi, I belive your answer is 188.02

sorry if it is wrong

Here is how to get the answer which is 188.02; 11.9 x 15.8= 188.02in²

and here you go have a splendid day!

Step-by-step explanation:

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3 years ago

Write the equation of a circle whose center is at the origin and contains the point (7, 0).

kari74 [83]

Radius of the circle = sqrt((7 - 0)^2 + (0 - 0)^2) = sqrt(7^2) = 7

Equation of a circle is given by (x - a)^2 + (y - b)^2 = r^2; where (a, b) is the centre of the circle.

Required equation = (x - 0)^2 + (y - 0)^2 = 7^2
x^2 + y^2 = 49

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3 years ago

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Archy [21]

Answer:

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3 years ago

a bank manager wants to know the mean amount of mortgage paid per month by homeowners in an area. a random sample of 120 homeown

Oksi-84 [34.3K]

Answer:

[ 1,532.41, 1,617.59]

Step-by-step explanation:

Data provided :

Sample size, n = 120

Mean = $1,575

Standard deviation = $215

Confidence level = 97%

Now,

Confidence interval = Mean ± $z\frac{\sigma}{\sqrt n}$

also,

for 97% confidence level z score = 2.17 [from standard z-table]

= $1,575 ± $2.17\frac{215}{\sqrt {120}}$

= $1,575 ± 42.59

Therefore,

Confidence interval = [ $1,575 - 42.59, $1,575 + 42.59]

= [ 1,532.41, 1,617.59]

4 0

4 years ago