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sergij07 [2.7K]
3 years ago
12

Help plz asap answer first gets. Brainliest

Mathematics
2 answers:
melomori [17]3 years ago
6 0

Answer:

1. \frac{3}{20}                      5. \frac{3}{14}                    9.\frac{14}{15}

2. \frac{55}{4}                     6.\frac{11}{10}                    10.\frac{19}{6}

3. \frac{7}{6}                       7. \frac{22}{15}                   11. \frac{47}{24}

4.\frac{17}{12}                       8. \frac{16}{21}                  12. \frac{19}{42}

hope this helps!

bixtya [17]3 years ago
4 0
1. 3/20 or 0.15
2. 55/4 or 13.75 or 13 3/4
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The principal of a high school spent 1700 for X desk each and Y chairs at $25 each if he had bought half the number of desk in t
KatRina [158]

Answer:

25X + 25Y = 1700

25X + 100Y = 3200

Step-by-step explanation:

Given that the principal of a high school spent $1700 for X desk and Y chairs at $25 each. Then, the equation will be

25X + 25Y = 1700 ....... (1)

If he had bought half the number of desk in twice the number of chairs he would have spent 1600. That is

25(X/2) + 25(2Y) = 1600

25X/2 + 50Y = 1600

Find the LCM and cross multiply

25X + 100Y = 3200 ........(2)

6 0
3 years ago
What is a square root? (√) Multiplication is a number added several times and and exponent is the number times itself. So what i
enot [183]
It's the inverse operation of squaring that number. It's an odd definition to explain lol
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3 years ago
(x+12) (3x+2)<br> Find the value of X
KatRina [158]

Step-by-step explanation:

Equation at the end of step 1

(3x2 - 38x) + 24 = 0

STEP2:Trying to factor by splitting the middle term

 2.1     Factoring  3x2-38x+24 

The first term is,  3x2  its coefficient is  3 .

The middle term is,  -38x  its coefficient is  -38 .

The last term, "the constant", is  +24 

Step-1 : Multiply the coefficient of the first term by the constant   3 • 24 = 72 

Step-2 : Find two factors of  72  whose sum equals the coefficient of the middle term, which is   -38 .

     -72   +   -1   =   -73     -36   +   -2   =   -38   That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -36  and  -2 

                     3x2 - 36x - 2x - 24

Step-4 : Add up the first 2 terms, pulling out like factors :

                    3x • (x-12)

              Add up the last 2 terms, pulling out common factors :

                    2 • (x-12)

Step-5 : Add up the four terms of step 4 :

                    (3x-2)  •  (x-12)

             Which is the desired factorization

Equation at the end of step2:

(x - 12) • (3x - 2) = 0

STEP3:Theory - Roots of a product

 3.1    A product of several terms equals zero. 

 When a product of two or more terms equals zero, then at least one of the terms must be zero. 

 We shall now solve each term = 0 separately 

 In other words, we are going to solve as many equations as there are terms in the product 

 Any solution of term = 0 solves product = 0 as well.

Solving a Single Variable Equation:

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 Add  12  to both sides of the equation : 

                      x = 12

Solving a Single Variable Equation:

3 0
3 years ago
Read 2 more answers
What is the lowest common factor of 12 and 15
dimaraw [331]
<span>The factors of 12 are : 1, 2, 3, 4, 6, 12.
The factors of 15 are : 1, 3, 5, 15.
1 and 3 are the only common factors (numbers which are factors of both 12 and 15).</span>
<span>Therefore, the highest common factor of 12 and 15 is 3.</span>
7 0
3 years ago
Read 2 more answers
Please help ASAP<br> Will give Brainliest <br> Want explanation
lara [203]

Answer:

1.73 or 3+√6/√3+√2

Step-by-step explanation:

1. Simplify the Numerator...3+ the square root of 6 cannot be simplified, so the answer is 5.45

2. Simplify the Denominator.

17 \sqrt{3}  - 2 \sqrt{4}  \sqrt{4}  \sqrt{2}  + 3 \sqrt{9}  \sqrt{2}  - 4 \sqrt{4}  \sqrt{4}  \sqrt{3}  =  17 \sqrt{3}  - 8 \sqrt{2}  + 9 \sqrt{2}  - 16 \sqrt{3}  =    \sqrt{3}  + \sqrt{2}  = 3.15

3. Divide. 5.45/3.15= 1.73

3 0
3 years ago
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