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makvit [3.9K]
3 years ago
10

-8/3+5/2 solve this question​

Mathematics
2 answers:
levacccp [35]3 years ago
8 0

Answer:

-  \frac{1}{6}

Step-by-step explanation:

-  \frac{8}{3}  +  \frac{5}{2}  \\  -  \frac{8 \times 2}{3 \times 2}  +  \frac{5 \times 3}{2 \times 3 }  \\  -  \frac{16}{6}  +  \frac{15}{6}  \\  =  -  \frac{1}{6}

lesya [120]3 years ago
3 0

Answer:

Step-by-step explanation:

Find lcm of3&2=6

-8/3+5/2=?/6

3 enters into 6 two times so

2*-8=-16

2 enters into 6 thr ee times so

3*5=15

Then -16+15=-1

Answer is -1/6

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-4(2x-3)>-28 please i need this result
Len [333]

-4 (2x - 3) > -28

Divide by -4 on both sides. Since we're dividing by a negative, we need to switch the sign.

2x - 3 < 7

Add 3 to both sides

2x < 10

Divide by 2 on both sides

x < 5

3 0
3 years ago
All the items on the sale rack were 75 percent off their original price.
tresset_1 [31]

Answer:

112 $ is the original price

Step-by-step explanation:

x \times 0.75 = 84 \\ x = 84 \div 0.75 \\ x = 112

you have to think that the original price multiplied by 0.75 (also known as 75%) gave the result of what he saves i.e 84 $. So we put up an equation with the original price multiplied by 75% which equals the 84 $ he saved on buying that item on sale

4 0
3 years ago
Solve the system of equations
nekit [7.7K]

Answer: x = 3 and y = 1

Step-by-step explanation:

y = - x + 4 ............... equation 1

y = x - 2 ............. equation 2

Solving the linear equation by substitution method , we have :

substitute equation 2 into equation 1 , that is

x - 2 = - x + 4

Add 2 to both sides , we have

x = -x + 4 + 2

Add x to both sides , we have

2x = 6

divide through by 2

x = 3

Substitute x = 3 into equation 2 to find the value of y , we have

y = x - 2

y = 3 - 2

y = 1

Therefore : x = 3 and y = 1

8 0
3 years ago
Andrew is showing his work in simplifying -4.5 + 4.2 + 5.6 - 7.3. Identify
Hitman42 [59]

Answer:

hence the answer for given problem is -2, but andrew get -21.6 which is wrong

Step-by-step explanation:

8 0
1 year ago
Evaluate n + 11 for n = 3.<br><br> A: 331<br> B: 33<br> C: 14<br> D: 8
andriy [413]
The answer is 14. if n equals 3 and you use the equation instead of n. 3+11 that would equal 14
C is the answer
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7 0
3 years ago
Read 2 more answers
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