The difference of four times a number and 5 is 39 can be expressed algebraically as:
4x - 5 = 39
Now, we can solve for x.
Add 5 to both sides:
4x - 5 + 5 = 39 + 5
4x = 44
Divide both sides by 4 to solve for x:
4x/4 = 44/4
x = 11
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Answer:
Step-by-step explanation:
Astronomers were trying to find the weight of six planets - Mars, Venus, Pluto, Jupiter, Mercury and Saturn. The number of planets lighter than Mars was equal to the number of planets heavier than Venus. Saturn was heavier than Mars and Mercury was heavier than Pluto. Venus was lighter than Mars. Saturn was not the heaviest planet.
Answer:
£750
Step-by-step explanation:
Total Price = 100 + 20 = 120%
Total Price = £900
120% = £900
1% = 900 ÷ 120 = £7.50
1% = £7.50
100% = 7.5 x 100 = £750
<span>3x - 9 = 12
3x = 12 + 9
3x = 21
x =21/3
x =7
hope that helps</span>
<h2>HEY!!!!!! </h2>
<h2>plz Reffer the attachment </h2>
<h2>mark as brainlist please</h2>
