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andrew11 [14]
2 years ago
9

X - 2(X + 10) = 12 What is this??!?!!?

Mathematics
2 answers:
Julli [10]2 years ago
8 0

Answer:

-32

Step-by-step explanation:

x-2x-20=12

-x=32

x=-32

.....................

irga5000 [103]2 years ago
6 0

Answer:

-32

Step-by-step explanation:

Pal, it's M A T H

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Hi i just wanna know if i'm right on this math question<br><br> Thank you.
Stolb23 [73]

Answer:

Correct my guy or gal.

Step-by-step explanation:

6 0
3 years ago
In the function f(x) = 5(x2 − 4x + ____) + 15, what number belongs in the blank to complete the square?
Georgia [21]
If you would like to find the number which belongs in the blank to complete the square, you can calculate this using the following steps:

f(x) = 5(x^2 - 4x + a) + 15
a ... the number = ?

<span>x^2 - 4x + a = (x - 2)^2 = x^2 - 4x + 4
</span>a = 4

The correct result would be 4.
5 0
3 years ago
Read 2 more answers
class size m average 0.82 n class n average 0.78. if the average for combined classes is 80%, what is relationship between m and
katen-ka-za [31]

Answer:

The relation between m and n is ,  m = n      

Step-by-step explanation:

Given as :

The average for n class  = 0.82 = 82%

The average for m class  = 0.78 = 78%

The average for ( m + n ) class  = 80%

So , \frac{x_1 +x_2+x_3+x_4+ ....... + x_n}{n} = 82%

And \frac{x_1 +x_2+x_3+x_4+ ....... + x_m}{m} = 78%

And , \frac{(x_1+x_2+x_3+x_4+ ......+x_n ) + (x_1+x_2+x_+x_4+.....+x_m)}{m+n} = 80%

So , 0.82×n + 0.78×m = 0.80× (m+n)

Or,  0.82×n - 0.80×n = 0.80×m -   0.78×m

Or,   0.02×n              =  0.02×m

Or,   \frac{m}{n} =  \frac{0.02}{0.02}

∴      \frac{m}{n} = 1

I.e     m  =  n

Hence The relation between m and n is ,  m = n      Answer

6 0
3 years ago
The sum of four consecutive integers os -18. what is the greatest of these integers?
Len [333]
Hello! The sum of four consecutive integers that equal -18 are -6, -5, -4, And -3. -3 is the greatest out of all of the integers and -6 is least out of all the integers. The further right on the number line, the greater it is. The further left on the number line, the lower it is.
5 0
4 years ago
A builder was building a fence. In the morning, he worked for 25 of an hour. In the afternoon, he worked for 910 of an hour. How
Furkat [3]

9514 1404 393

Answer:

  (9/10)/(2/5) = ratio of work times

  2 1/4 times as long

Step-by-step explanation:

<u>Given</u>:

  2/5 hours work in the morning

  9/10 hours work in the afternoon

<u>Find</u>:

  an equation for how many times as long was afternoon work compared to morning work

  the equation solution

<u>Solution</u>:

  a/m = r . . . . ratio of afternoon work to morning work

  (9/10)/(2/5) = r . . . equation

  (9/10)/(4/10) = r

  9/4 = r = 2 1/4 . . . solution

The builder worked 2 1/4 times as long in the afternoon as in the morning.

8 0
3 years ago
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