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Yakvenalex [24]
3 years ago
12

Please help me What is 7/10 + 20/100

Mathematics
2 answers:
Vadim26 [7]3 years ago
6 0
Well 20/100 can be simplified down to 1/5. So it would be 7/10 +1/5. You would have to find out the common denominator which is ten. You would have to multiply 1/5 by 2 to make it 2/10. So finally you have 7/10 +2/10 then you add as normally to get the answer of 9/10.
marusya05 [52]3 years ago
5 0
100 is the common denominator so

70/100 + 20/100 90/100 = 9/10
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Pls help
BlackZzzverrR [31]

Answer:

y =  8 \:  \:  \: x =  - 10

Step-by-step explanation:

4( - 6x - 9y =  - 12) \\ 3(8x + 9y =  - 8) \\  \:  \:  \:  \:  \:  \:  \\  - 24x - 36y =  - 48 \\ 24x + 27y =  - 24 \\  \\  - 9y =  - 72 \\ y = 8 \\  \\  \\  \\  \\  - 6x  -  9y=  - 12 \\  - 6x  -  72 = -  12 \\  - 6x =  - 12 + 72 \\  - 6x = 60 \\ x =  - 10

8 0
2 years ago
Devon has $5,768 in his savings account, which is $2,709 more than Serena has in her savings account. How much money does Serena
Shtirlitz [24]
I got 8,477 . I hope it’s right
5 0
2 years ago
Is this formula correct?
Flura [38]

Hey there!!

Volume of a cone : πr²h/3

Where, πr²h is the volume of a cylinder.

Hence,

V cone = V cylinder / 3

Hence,

The above mentioned formula is wrong/false.

Hope my answer help!!

6 0
3 years ago
If a 32 ft rope is cut into two sections with one section 7 times as log as the other section, how long is teh shorter piece?
steposvetlana [31]
The total length of the rope = 32 ft
It is cut into two sections, say x and y
But one section is seven times the other, say y=7x (shorter section being x)
Solving for x

x+y =32
x+7x = 32
8x=32
x=32/8 = 4 ft.
Therefore, the shorter piece is 4 ft long.
5 0
3 years ago
Which shows one way to determine the factors of x3 – 9x2 5x – 45 by grouping?
GalinKa [24]
<span>x(x2 5) – 9(x2 5) 
Hope this helps! (:

</span>
8 0
3 years ago
Read 2 more answers
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