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ollegr [7]
2 years ago
14

4. Sophie can type 128 words in 3 minutes.

Mathematics
2 answers:
fiasKO [112]2 years ago
8 0

Answer:

13.5 minutes

Step-by-step explanation:

128 = 3 minutes

128/3 = 1 minute worth of words

42.6 = 1 minute

576/42.6 = 13.5

STatiana [176]2 years ago
4 0

Answer:

13.5min or 13min 30sec

Step-by-step explanation:

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Answer to this math problem
Cerrena [4.2K]
Subsitute 1/3 for t

18(\frac{1}{3})^2=18(\frac{1}{9})=\frac{18}{9}=2
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2 years ago
Is 12/30 and 18/45 proportional, or not proportional?
34kurt

12/30 = 18/45, so first you're going to cross multiply and you'll get (30)(18) = (12)(45). Then you can see that 540 = 540 same number so they're proportional...

BTW THIS WAY IS A LOT EASIER.

12/30 = 2/5

18/45 = 2/5

So yes, in summary, they're proportional to each other. Hope this helps, have a BLESSED and wonderful day! :-)

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3 years ago
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3 1/4% of 800?<br><br><br> Please help
asambeis [7]
The answer for this problem is 26.
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2 years ago
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Tyrod needs at least $820 to buy the computer he wants. He has already saved $330. He earns $50 per lawn that he cuts. What is t
Ksju [112]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The equation representing the given statement is ~

  • 50x + 330 \geqslant 820

The least number of lawns that he can cut and buy the computer is 10 lawns ~

\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}

Total savings should be greater or equal to $ 820 in order to buy the computer,

And his total savinga is equal to ~

Money he saved + money got from cutting lawns.

let's assume the lawns cut by Tyrod be x,

Money earned by cutting lawns is equal to

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  • 50x

total savings is equal to ~

  • 330 + 50x

hence,

  • 50x + 330 \geqslant 820

by solving for " x (number of lawns cut) " we get ~

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  • x  \geqslant 490 \div 50

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Hence, the least number of lawns he has to cut is the number that is greater than 9.8, which is

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6 0
2 years ago
9+w&gt;7 what is the inequality?
Troyanec [42]

Answer:

w > -2

Step-by-step explanation:

9 + w > 7

Subtract 9 from both sides to end up with w alone on the left side.

w > -2

5 0
3 years ago
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