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Gemiola [76]
1 year ago
5

Simplify. 5(x+2)-3(x-2)+7x= Please Help!!! Make it legit!

Mathematics
1 answer:
polet [3.4K]1 year ago
7 0

Answer: 9x + 16

Simplify the expression

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Help please. I have most of the problem done.
netineya [11]
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What is the numerator when 0.83 is written as a fraction with a denominator of 100
iVinArrow [24]
The numerator is 83 if the denominator is 100
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A group of ladies meet for an afternoon tea party. They bring all their cats. In all, there are 26 heads and 84 feet. How many l
Komok [63]




X= ladies       y = number of cats 

<span>Each lady has 2 feet and each cat has 4 feet </span>

<span><=> </span>

<span>x + y = 26 (1) => number of characters </span>
<span>2x + 4y = 84 (2) => number of feet </span>

<span><=> operation : (1) * 2 </span>

<span>2x + 2y = 52 (1') </span>
<span>2x + 4y = 88 (2') </span>

<span><=> operation : (2') - (1') </span>

<span>2y = 26 </span>

<span><=> </span>

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<span>10 ladies and 16 cats</span>
6 0
3 years ago
Read 2 more answers
Solve mixture problems. George wishes to increase the percent of acid in 50m / of a 15% acid solution in water to 25% acid, how
fenix001 [56]

Answer:

x = amount of pure acid to be added = 6.67ml

Step-by-step explanation:

George wishes to increase the percent of acid in 50ml of a 15% acid solution in water to 25% acid, how much pure acid must you add?

let

x = amount of pure acid to be added

15% of 50 + x = 25% of 50 + x

(0.15 * 50) + x = 0.25(50 + x)

7.5 + x = 12.5 + 0.25x

Collect like terms

x - 0.25x = 12.5 - 7.5

0.75x = 5

x = 5/0.75

x = 6.6666666666666

Approximately,

x = 6.67

x = amount of pure acid to be added = 6.67ml

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The local taxi charges $3.00 plus $1.25 for every mile traveled. Determine whether the function is proportional or non proportio
miss Akunina [59]

Answer:

a

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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