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3 years ago

Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x − 2) true?

Mathematics

1 answer:

rodikova [14]3 years ago

8 0

You’d have to solve your equations!

they’d be the same when x=-56

and when x=-56 they’d BOTH equal -27

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Please help me (online class)

photoshop1234 [79]

Answer:

x=3.99 it represents the amount per book

Step-by-step explanation:

3x + 1.50 = 13.47

- 1.50 on both sides

3x= 11.97

Divide 3 on both sides.

x= 3.99

8 0

3 years ago

Find the correct answer and solve?<br>|y-9|=6

balandron [24]

|y-9|=6

y-9=6
y-9=-6

y=15
y=3

So, y=15,3

5 0

4 years ago

Solve each one variable equation.

uranmaximum [27]

Answer:

See below in bold.

Step-by-step explanation:

a. |x| = 6

x = 6, -6.

b. |x − 5| = 4

x - 5 = 4

x = 9.

x - 5 = -4

x = 1.

c. 2|x + 3| = −10

No solution because |x + 3| is an absolute value so is always positive.

8 0

3 years ago

A coordinate plane with a straight line with a negative slope, with endpoints at, (0, 9) and (9, 0) The slope of the graph is –1

zaharov [31]

Answer:

D .candle burns down 1 cm per hour

Step-by-step explanation:

this is the answer i just got it rigth

7 0

3 years ago

Read 2 more answers

Hospital records show that a certain surgical procedure takes on an average 111.6 minutes with a standard deviation of 2.8 minut

Arisa [49]

Answer:

At least 37.74% of the procedures takes between 97.6 and 125.6 minutes

Step-by-step explanation:

The percentage is the area of the standard normal distribution curve between the values 97.6 and 125.6

The standard normal variate of the given data is found as

$Z=\frac{X-\overline{X}}{\sigma }$

Thus for the given values Z is calculated as under

$Z_1=\frac{97.6-111.6}{2.8}=-5$

Similarly for the other value we have

$Z_2=\frac{125.6-111.6}{2.8}=5$

Thus the area between the calculated values can be found from standard normal distribution table to be 37.74%

8 0

3 years ago

Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x − 2) true?​

Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x − 2) true?