MATHEMATICS MIDDLE SCHOOL

20/5x(9-2)-2x(6+3)+5

Answers

Answer 1
Answer: 20/5x(9-2)-2x(6+3)+5 
= 10x + 5 

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Mark buys A wooden board that is 7 1/2 feet long the cost of the wooden board is 0.50 cents per foot including tax enter the total cost in dollars of the wooden board

Answers

it would just be the tot foot time the cost

7.5 X 0.50 = $3.75

Write the number with the same value as 32 tens

Answers

32 tens means 32 times ten. This is 32 * 10 = 320. So the number with the same value as 32 tens is 320 units. You could use this way to write other forms of 32 tens, for example you could find the numbers of hundreeds that represent the same value, That would be 3.2 hundreeds, because 3.2 * 100 = 32 * 10 = 320.

Final answer:

To write the number with the same value as 32 tens, simply multiply 32 by 10 to get 320.

Explanation:

To write the number with the same value as 32 tens, we need to multiply 32 by 10. Since there are no other digits, the answer will simply be 320.

Learn more about Multiplication here:

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triangle MKL is an isosceles triangle with MK congruent to ML. If Mk=7x-15, KL=4x-5, and ML=10x-42, find x and the measure of each side

Answers

Answer:

For given isosceles triangle ΔMKL with MK≅ML, x=9; MK=48, KL=31, ML=48.

Explanation:

An isosceles triangle has two of its 3 sides congruent.

For given ΔMKL, MK is congruent to ML (MK ≅ ML); i.e. length of side MK is equal to length of the side ML.

Given:

MK=7x-15

KL=4x-5

ML=10x-42

Equating MK with ML, we get:

MK=ML

7x-15 = 10x-42

Taking all x terms to the right,

42-15 = 10x-7x

27 = 3x

x=9

To find measure of each side MK, ML and KL; substitute the value of x=9 in corresponding equations.

MK = 7x-15  

= (7×9) - 15

= 63-15  

= 48

KL = 4x-5

= (4×9)-5

= 36-5

= 31

ML = 10x-42

= (10×9)-42

= 90-42

= 48

Therefore, for given ΔMKL with MK≅ML, x=9; MK=48, KL=31, ML=48.

What is the LCD of 5/12 and -9/16 ?

Answers

The least common denominator of 5/12 and -9/16 

The answer is 48.

Now, we have to change the numerators also to make this a equal fraction to the first ones we had.

5*4 = 20
12*4 = 48

20/48

-9*3 = -27
16*3 = 48

-27/48
List the multiples of 12 and 16

Multiples of 12: 12, 24, 36, 48, 60
Multiples of 16: 16, 32, 48, 64, 80

So, the LCD of 12 and 16 is 48.

Least Common Denominator is the same thing as Least Common Multiple.

I need some help thank you

Answers

Answer:

9/10

Decimal: 0.9
0.9 in decimal form

Please help with this algebra :)

Answers

I am gonna go for D is the answer.
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