All categories

3 years ago

I need help please..

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

35+.8x= -7x-43, X=-10 , 3/4X-18=1/2X+5 X=92

Step-by-step explanation:

SSSSS [86.1K]3 years ago

8 0

Answer:

.8 x x + 35 = -7 divided by x - 43

Step-by-step explanation:

You might be interested in

Your family goes out to Chili's for dinner. Chili's charges $9 for an adult dinner and $5 for a

klasskru [66]

Answer:

4 adults and 6 children

Step-by-step explanation:

9 x 4 = 36

5 x 6 = 30

36 + 30 = 66

There was 4 adults and 6 children

5 0

3 years ago

A large building has 1000 windows, and 5 of the windows need to be replaced. what decimal represents the number of Windows that

Taya2010 [7]

The answer is .005 because five out of one thousand need to be replaced.

4 0

3 years ago

Write the equation of the lines that passes through the points (-3, -2) and (0, -3)

N76 [4]

Answer:

$-\frac{1}{3}$

Step-by-step explanation:

To find the slope of a line using two points, employ the use of the slope formula.

$\frac{y_{2}-y_{1}}{x_{2}- x_{1}}$

Your y1 term is -2, your y2 term is -3.

Your x1 term is -3, your x2 term is 0.

$\frac{-3-(-2)}{0-(-3)} \\\\\\\frac{-3+2}{0+3} \\\\\frac{-1}{3} \\$

7 0

4 years ago

5. Solve for x using the model below* Enter your answer as a number <br>

sergeinik [125]

Answer:

Step-by-step explanation:

Each triangle = - x

There are 4 of them

They equal -4x

The circles all = 1

There are 3 circles on the left

They equal 3*1 = 3

There are eleven circles on the right.

-4x + 3 = 11 Subtract 3

-4x/-4 = 8 Divide by - 4

x = 8/-4

x = -2

6 0

4 years ago

The probability distribution of the number of loaves of bread sold in a bakery in a week based on past data is given below. Iden

Tpy6a [65]

Answer:

$E(X) = 100*0.25+ 148*0.36 + 135*0.21 + 200*0.18 = 142.63$

And for this case the expected value for this random variable is given by 142.63 and rounded to the nearest integer we got 143. And that represent the number of loaves of bread sold for one week

Step-by-step explanation:

For this case we have the following distirbution given:

X: 100 148 135 200

P(X): 0.25 0.36 0.21 0.18

The expected value is given by:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing we got:

$E(X) = 100*0.25+ 148*0.36 + 135*0.21 + 200*0.18 = 142.63$

And for this case the expected value for this random variable is given by 142.63 and rounded to the nearest integer we got 143. And that represent the number of loaves of bread sold for one week

4 0

3 years ago