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Mashcka [7]
3 years ago
9

PRACTICE

Mathematics
1 answer:
Novay_Z [31]3 years ago
4 0

Answer:

k = 20

Step-by-step explanation:

Expressing 18, 36 and 54 as a product of their prime factors

18 = 2 × 3 × 3 = 2 × 3²

36 = 2 × 2 × 3 × 3 = 2² × 3²

54 = 2 × 3 × 3 × 3 = 2 × 3³

The common prime factors are 2 and 3²

HCF = 2 × 3² = 2 × 9 = 18

Thus

k - 2 = 18 ( add 2 to both sides )

k = 20

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Ebert used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 hour work week with the raise? pls halp
Simora [160]

Answer:

He will make $88 more a week then he did before.

Step-by-step explanation:

10% of $22 is 2.2.

2.2*40=88  

7 0
3 years ago
Solve for x. <br><br> x/5 = 20
umka21 [38]

Answer:

x=100

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Pls help me solve the question I Need to finish quickly
Effectus [21]
45: 100% - 17% = 83%

47: 44/2 = 22 
      22 - 1 = 21

See attached file

4 0
3 years ago
31-18÷6 how would you solve this using PEMDAS?
sergeinik [125]
P: Parenthesis
E: Equation 
M:Multiplication 
D: Division 
A : addition 
S: Subtraction

So first you need to divide because it is before so you divide 18 by 6 which is 3 then you subtract (31 - 3) which gives you 28
answer : 28

7 0
3 years ago
Read 2 more answers
Solve for x.
Crank

The solutions to the given absolute value equation are:

x = −74 and x = 80

<h3>How to solve the given equation for x?</h3>

Here we want to solve the absolute value equation:

(1/7)*|x - 3| - 2 = 9

To solve this, we first need to isolate the absolute value part, so we get:

(1/7)*|x - 3| - 2 = 9

(1/7)*|x - 3| = 9 + 2

(1/7)*|x - 3| = 11

|x - 3| = 11*7

|x - 3| = 77

Now we can decompose the absolute value equation into two simpler ones, which are:

x - 3 = 77

x - 3 = -77

Solving those two equations we get:

x = 77 + 3 = 80

x = -77 + 3 = -74

Thus the solutions are:

x = -74 and x = 80, we conclude that the correct option is the last one.

If you want to learn more about absolute value equations:

brainly.com/question/5012769

#SPJ1

6 0
2 years ago
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