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Mrrafil [7]
2 years ago
8

Solve: 5a + 6a = -11 What does A equal? A =

Mathematics
1 answer:
pochemuha2 years ago
8 0

Answer:

a = -1

Step-by-step explanation:

Combine like terms 6a + 5a = 11a

11a = -11

Divide -11 by 11

-11/11 = -1

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The sum of two numbers is 6, their difference is 4, find the two numbers. What is their product?
Firlakuza [10]

Answer:

The two numbers are 5 and 1. Their product is 5

Step-by-step explanation:

x + y = 6 (*)

x - y = 4 (**)

Let (*) + (**)

--> (x+y) + (x-y) = 6 + 4

<=> 2x = 10 <=> x = 5

Substitute x= 5

(*) <=> 5 + y = 6

<=> y=1

Answer: (x,y) = (5,1)

Their product: x.y = 5x1 = 5

6 0
3 years ago
The diagonals of rectangle ABCD meet at O. If AO = ( 2+3) cm and
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law

Step-by-step explanation:

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2 years ago
What is 10/15 the same as
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If you simplify it, it would be that same as 2/3.
5 0
2 years ago
Lydias hotel room number has three digits.The hundreds digit has a value of 40 Tens.The Tens digit is greater than 6. Which coul
stiks02 [169]

Any 3 digit number can be expressed in the form of:

(a*100)+(b*10)+(c*1)

Where a, b, c represent any natural number from 0 to 9.

We are told the hundreds number (this means a*100 in the expression above) is equal to the value of 40 tens, 40 tens is 400. Then, we know the digit in the tens is greater then 6, this means b>6 in the expression above.

So, there are multiple numbers the room number could be, namely:

400+(b*10)+(c*1)\\

where b can be 7, 8, or 9; and c can be  0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. So, there's 30 possible room numbers Lydia may be.

8 0
2 years ago
This question doesn't make sense to me..<br>Please help. 8/21 × 14/4 =​
hjlf
8/21 x 14/5 = 1.06666667
i hope this helps!!
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2 years ago
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