All categories

4 years ago

-20 + - 15 (its the weird thing where you change the problem with 2 lines and stuff)

Mathematics

2 answers:

Ivanshal [37]4 years ago

4 0

Answer:

-35

Step-by-step explanation:

I don't know what you are talking about but this is my method ;

$-20 + - 15$

It is best written as;

$-20+(-15)\\\mathrm{Remove\:parentheses}:+\times - = -\\-20-15$

Note ; the bracet means multiply so + multiplied by -15

$\mathrm{Subtract\:the\:numbers:}\:-20-15\\=-35$

deff fn [24]4 years ago

3 0

Answer:

-35

Step-by-step explanation:

You might be interested in

Rita's company reimburses her expenses on food, lodging, and conveyance during business trips. The company pays $55 a day for fo

zheka24 [161]

2335 = 55x + 0.45(300)
2335 = 55x + 135.....distribute through the parenthesis
2335 - 135 = 55x.....subtraction property
2200 = 55x ....division property
2200/55 = x ...simplify
40 = x.....she spent 40 days on the trip

6 0

4 years ago

How to make this y=21x-7 into standard form

Galina-37 [17]

The standard form is 21x-y-7=0

6 0

4 years ago

Use the given instructions to answer question 18 to question 20.

Tpy6a [65]

Answer:

Explanation:

6 0

1 year ago

5x-7<7x-11<5x+9 <br> Give your answer in interval notation

skelet666 [1.2K]

Answer:

In pic below

Step-by-step explanation:

4 0

3 years ago

Which set of numbers is correctly ordered from greatest to least?

shepuryov [24]

Answer:

Step-by-step explanation:

Here is the corrected question and options:

Option 1:

$7\frac{1}{3} , \frac{221}{30} , 7.36, 3.16\sqrt{2e}$

Option 2:

$7\frac{1}{3} , 7.36 , \frac{221}{30} , 3.16\sqrt{2e}$

Option 3:

$3.16\sqrt{2e}, 7.36 , \frac{221}{30} , 7\frac{1}{3}$

Option 4:

$3.16\sqrt{2e}, \frac{221}{30} , 7.36 , 7\frac{1}{3}$

Solution:

Lets write each of the above given numbers in a simplified form:

$7\frac{1}{3}$

Simplify this by converting it into a decimal form:

This becomes:

(3*7+1) / 3 = (21 + 1) / 3 = 22/3 = 7.333333

$7\frac{1}{3}$ = 7.3

$\frac{221}{30}$

Simplify this by converting it into a decimal form:

This becomes:

221/30 = 7.3666666667

So,

$\frac{221}{30}$ = 7.367

$7.36$

This number comes with a bar sign on .36 which means that the number has a non terminating repeating decimal expansion as 7.3636363636...

So after rounding it off this becomes:

7.36

$3.16\sqrt{2e}$

Simplify this by converting it into a decimal form:

The value of e = 2.718

This becomes:

3.16 $\sqrt{2*2.718}$

= 3.16 (√5.436)

= 3.16 * 2.331523

= 7.3679949818

= 7.368

$3.16\sqrt{2e}$ = 7.368

7.367995

Now we get the numbers in decimal form:

$7\frac{1}{3}$ = 7.333333 = 7.3

$\frac{221}{30}$ = 7.3666666667 = 7.367

7.36 = 7.3636363636

$3.16\sqrt{2e}$ = 7.3679949818 = 7.368

Now lets order the numbers from greatest to least:

$3.16\sqrt{2e}$

$\frac{221}{30}$

7.36

$7\frac{1}{3}$

So the correct option is:

Option 4

$3.16\sqrt{2e}, \frac{221}{30} , 7.36 , 7\frac{1}{3}$

7 0

3 years ago