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Snowcat [4.5K]
3 years ago
9

2 1/7 + 9 15/28 + -9 5/14

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
3 0

Answer:

65/28 or 2 9/28

Step-by-step explanation:

Hope this helps!

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Please help me
galina1969 [7]

Answer:

Your answer is.....

In every big pieces there will be 3 * 1/3 pieces.

So total 12 of 1/3 pieces

Mark it as brainlist answer . follow me for more answer.

Step-by-step explanation:

7 0
3 years ago
Factorise the following algebraic expressions completely a. y4 −81 . x2 +10x +24
Ludmilka [50]

y^4-81=(y^2-9)(y^2+9)=(y-3)(y+3)(y^2+9)\\\\
x^2 +10x +24 =x^2+10x+25-1=(x+5)^2-1=(x+5-1)(x+5+1)=(x+4)(x+6)

3 0
3 years ago
In parallelogram DEFG, DH = x + 5, HF = 2y, GH = 4x-3 and HE = 4y + 1. Find the values of x and y. The diagram is not drawn to s
GalinKa [24]
Rule: The diagonals of any parallelogram bisect each other. In other words, they cut each other in half.

This means DF is cut into two equal pieces: DH and HF.
Similarly, GE is cut into two equal pieces: GH and HE.

DH = HF
x+5 = 2y
x = 2y-5

GH = HE
4x-3 = 4y+1
4(x)-3 = 4y+1
4(2y-5)-3 = 4y+1 ... x has been replaced with 2y-5
8y-20-3 = 4y+1
8y-23 = 4y+1
8y-4y = 1+23
4y = 24
y = 6

If y = 6, then x is
x = 2y-5
x = 2(6)-5
x = 12-5
x = 7

--------------------------------------------

Answers: 
x = 7 and y = 6

5 0
3 years ago
Solve to find the value of x.
aleksley [76]
135
cross multiply 9*20 then divide by 8


5 0
4 years ago
Read 2 more answers
Find the lest number which is exactly divisible by 36 & 90 Maths ​
prisoha [69]

Answer:

  • 180

Step-by-step explanation:

You need to find the HCF of 36 and 90.

<u>Prime factors of each:</u>

  • 36 = 2*2*3*3
  • 90 = 2*3*3*5

<u>HCF includes all prime factors of both numbers:</u>

  • HCF(36, 90) = 2*2*3*3*5 = 180
3 0
3 years ago
Read 2 more answers
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