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schepotkina [342]
3 years ago
11

Erma solves an equation by first subtracting 8 from both sides of the equation. She then divides both sides by 8 and finds the s

olution. Which of the following gives the properties of equality that she used and their correct order?
Mathematics
1 answer:
BigorU [14]3 years ago
5 0
This is the concept of algebra, to get the inequality we proceed as follows; Erma subtracted 8 from both sides and divided both sides by 8 so that we can get the value of the unknown. The the properties used were:

Subtraction properties of inequality, which states that:
if a<b, then a-c<b-c

Division properties of inequality, which states that:
if a<b, then a/c=<b/c

 
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725% work in an organisation 52% of employees or post graduate and the remaining are not post graduate find the number of employ
Liono4ka [1.6K]

Answer: 348

Step-by-step explanation:

Given : Total employees work = 725

Proportion of employees are post graduate = 52%

Proportion of employees are not post graduate = 100%-52% = 48%

The number of employees were not post graduate  = 48% of 725

= 0.48 x  725

= 348

Hence, the number of employees were not post graduate  = 348

3 0
3 years ago
You are creating a model of a bookcase for a dollhouse.
Goshia [24]

Answer:

If the model is 3 inches tall, the model bookcase should be <em>2 inches</em> wide.

Step-by-step explanation:

When using similar figures, set up a proportion of the model measurements to the actual measurements:

\frac{3}{48}=\frac{x}{32}

Then cross multiply and solve for x:

48x=96\\x=\frac{96}{48}\\x=2

If this helped, a brainliest would be greatly appreciated!

6 0
3 years ago
I don’t understand how to factor trinomials
gayaneshka [121]
When the X term is one, and doesn't have a leading coefficient, then you can factor it using the box and diamond method. look up videos on Khan Academy of the box and diamond method for solving trinomials. For number 9, you have a difference of squares. That means you can factor to just 2 terms. (x+4)(x-4) this works because 16 has an easy square root, and the sign in between is a negative(difference)
3 0
3 years ago
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(5x3 + 3)2 = (5x3)2 + (3)2 = 25x6 + 9 is this correct
faust18 [17]

Answer:

No!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NO NO NO NO NO... SEE BELOW!!!!!!

Step-by-step explanation:

LOL I like caps!!! and !'s

To question

If 5x3 is 5x^3 then...

5x^3 times 2 equals 10x^3 no 10x^6

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3 years ago
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Fynjy0 [20]
9 is the answer!!!!!!!!!!!!!!!!!!!!!!
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