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Gnoma [55]
3 years ago
6

Simplify the expressioh 6.9-(-5)+4.1

Mathematics
1 answer:
barxatty [35]3 years ago
6 0
This would be 16. When you subtract a negative number, it’s really like adding. Once this part is done, the expression would be 11.9+4.1. 11+4=15 and 0.9+0.1= 1. 15+1= 16.
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Nastasia [14]

The solution of the given equation is (3,6). The correct option is B.(3,6)

<h3>Given equations,</h3>

y=x+3.......(1)\\4x+y=18.....(2)

<h3>How to solve the equations?</h3>

putting the value of y from equation (1) in equation (2) , we get

4x+x+3=18\\5x=18-3\\5x=15\\x=3

substitute the value of x=3 in equation (1) we get,

y=3+3\\y=6

Hence, the solution of given equation is (3,6).

So, the correct option is B.

For more details about the system of equations, follow the link:

brainly.com/question/12895249

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2 years ago
joe earns R25 per hour working at a pizza shop. How much will he earn over a weekend of two shifts, each six hours long​
NeX [460]

Answer:

R300

Step-by-step explanation:

<u>To solve:</u>

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  • Multiply the shift earnings by 2 to represent how much he earned over the weekend.

<u>Multiply</u><u> </u><u>25 by 6:</u>

25 \times 6 = 150

<u>Multiply 150 by 2:</u>

<u>150 \times 2 = 300</u>

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Can sommeone help solve equation
Alekssandra [29.7K]

Step-by-step explanation:

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or

2x - 5 >= 5

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x < -7/3 or x >= 5

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2 years ago
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Step-by-step explanation:

there are 180 degrees in a straight line, and since the angle opposite a is 167.3, we subtract that from 180 and we get 12.7

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3 years ago
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fomenos

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Step-by-step explanation:


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