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iren [92.7K]
3 years ago
7

In how many ways can the letters in the word "math" be arranged?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0
Number of ways = 4! = 4 x 3 x 2 x 1 = 24

Answer: 24
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What is the correct answer? ​
Readme [11.4K]

Answer:

Step-by-step explanation:

B) 33

8 0
3 years ago
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A chemist is mixing 45% salt solution with a 30% salt solution to make 60 L of a new solution that will contain 40% salt. How mu
Alinara [238K]

Answer:

30 ml of 45% salt solution and 20 ml of 30% salt solution.

Step-by-step explanation:

Let x be the amount of 45% salt solution and y be the amount of 30% salt solution

the two equation will be:

x+y=60 -- A

0.45x+0.3y=0.4(60) -- B

Solve by substitution

Rewrite Equation A

x+y=60

x=60-y --- C

Substitute C into B

0.45(60-y)+0.3y=24

 27-0.45y+0.3y=24

                -0.15y=-3

                        y=20

<u>Substitute</u> the y=20 into equation C

x=60-20

x=30

Therefore, there was 30 ml of 45% salt solution and 20 ml of 30% salt solution.

3 0
2 years ago
Find the equation of the line with slope =8 and passing through (3,21) write your equation in the form y=Mx+b
stiks02 [169]

Answer: y = 8x -3

Step-by-step explanation:

we know the slope already which is 8.

so the equation is: y = 8x + b

subsutite the x and y to get the value of b

21 = 8(3) + b

21 = 24 + b

b = -3

So the equation is: y = 8x -3

4 0
3 years ago
A bike shop sells only skateboards and bicycles. All skateboards have 4 wheels and all bikes have 2 wheels each. There are 20 ve
ELEN [110]
There are 11 skateboards and 9 bikes.

Set up your equations: 4s+2b=52 and b+s=20
Multiply the 2nd by 2, 2b+2s=40
Subtract the second equation from the first
2s=22
so 11 skateboards and 9 bikes

8 0
3 years ago
1 1/4 x 1/5 = ??? <br> Please help
Marizza181 [45]
1/4 and decimal form 0.25
5 0
3 years ago
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