All categories

2 years ago

Simplify (-9p+7)-(-9p+3)

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

4 0

$\tt{}( - 9p + 7) - (9p + 3)$

$\tt{} - 9p - 7 + 9p + 3$

$\tt{}7 - 3$

$\tt{}4$

You might be interested in

Whats the expanded form for 79×84?

taurus [48]

It should be 70+9x80+4

4 0

3 years ago

Please help with this word problem would be a huge help!!

Verdich [7]

Answer:

11.2 miles

Step-by-step explanation:

What has been describe here is a right triangle.

He went 10 miles east, and he turned left and went 5 miles. He started at home ended at work. We want to make a road from his home directly to his workplace (no turns; straight there).

So we have by Pythagorean Theorem:

$5^2+10^2=c^2$

$25+100=c^2$

$125=c^2$

Square root both sides:

$\sqrt{125}=c$

$11.2 \approx c$

11.2 miles would be the length of that direct path.

5 0

3 years ago

What is the mean absolute deviation of attendance at the 4 middle school dances?

Mice21 [21]

Answer:

Hope this helps you to understand, to do the problem and for future problems!

Step-by-step explanation:

All you have to do is take the numbers, add them, then divide them by how much there are. Once you did that if its a negative you just turn it positive bc its absolute.

4 0

3 years ago

Write a recursive definition for the sequence 21,16,11,6

SVETLANKA909090 [29]

A recursive definition for the sequence shown above can be x = n-5.
21 - 5 = 16
16 - 5 = 11
11 - 5 = 6
and so on...

The number sequence has a difference of 5 in each of the values before and after them.

4 0

2 years ago

If you add 20% of a number to the number itself what percent of the result would you have to subtract

Alina [70]

N+ 0.2n = 1.2nn = (1.2n) - (1/6)*(1.2n)
1/6 = 16.667%

5 0

3 years ago