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Ronch [10]
3 years ago
9

Simplify the following expres (- 4xy-2) - 5 (xy-2)-1

Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0
Simplified = -9xy+9
Vedmedyk [2.9K]3 years ago
5 0

Step-by-step explanation:

(- 4xy - 2) - 5(xy - 2) - 1

-4xy - 2 - 5xy + 10 - 1

Solving like terms

-9xy + 7

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Rina8888 [55]

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2.5cm

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3 0
3 years ago
The sum of two numbers is -9. The difference of the two numbers is -41. What are the two numbers?
Nataly [62]

Answer:

the two numbers are 16 and -25

Step-by-step explanation:

Let the two numbers be x and y

x+y=-9

x-y=-41

By substitution

y=-9-x

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6 0
3 years ago
Find the sum. Enter your answer in simplest form.<br> 1/6+3/4
kvasek [131]

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6 0
3 years ago
A walker has travelled 9 km along a trail. If he has completed 80% of the trail, how much further does he still have to go?
Anit [1.1K]

Answer:

2.25 km to go

Step-by-step explanation:

In order to get this answer, you have to figure out how many km 10% is, 0.1125. Then multiply that by the remaining 20% because he already finished 80% of the trail. So, 0.1125 x 20 = 2.25.

Hope this helps! :)

3 0
2 years ago
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