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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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for a store contest four out of every 65 people who visit the store will receive a free DVD if 455 people visit the store how ma
Otrada [13]

If the rate at which they are giving the DVDs is the same then it is 4/65 or 16.25% or 0.1625.

Now just multiply 455 by the rate (4/65 or 16.25% or 0.1625) to find how many DVDs were given.

455 × (4/65) = 28

28 DVDs were given away

hope it helps :)

5 0
3 years ago
You like math then here
Igoryamba

Answer:

-8b + 9 - 5k

Step-by-step explanation:

I am assuming the blue highlighted portion is your answer, and is not a part of the initial question

(-4b + 15 - 7k) - (6 + 4b - 2k)

Combine like terms

-4b - + 4b

Negative + Positive = Negative

-4b - 4b = -8b

15 - 6 = 9

-7k - - 2k

Negative + Negative = Positive

-7k + 2k = -5k

Put them all together:

0b + 9 - 5k

Simplify

-8b + 9 - 5k

I got the same answer as you (just in a different order)

5 0
2 years ago
A market sells blueberries for $3 per pint. The first day, the market sold a total of $35 worth of blueberries. The second day,
Eddi Din [679]

Answer:Around 50 pints

Step-by-step explanation:

$35=$40

$47=$50

$57=$60

$40+$50+$60=$150/3=50

6 0
2 years ago
Factor the expression using the GCF 21+15
Svet_ta [14]

Answer:

3(7+5)

Step-by-step explanation:

21+15

Each term is divisible by 3

3*7 +3*5

3(7+5)

6 0
3 years ago
Write the log equation as an exponential equation. you do not need to solve for x.
vovikov84 [41]

Answer:

2x^5log=1/6

Step-by-step explanation:

using the natural log (e), we were able to give the power of 5 to 2x and then take it out from the parantheses

5 0
2 years ago
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