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natali 33 [55]
2 years ago
15

Please Help Me , This Is My Last Question I WILL REWARD BRAINLIEST !

Mathematics
2 answers:
guapka [62]2 years ago
4 0
20 decreased by 15% is equivalent to 20 - 15%.  And 20 - 15% equals 17.  So the answer is 17.  (Not sure how to show my work love sorry, but that's the correct answer.)
WARRIOR [948]2 years ago
3 0
What is that supposed to mean
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What two numbers multiply to 20 and add up to 9
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5 and 4

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Louisa needs 3 liters of lemonade and punch for a picnic she has 1800 milliliters of lemonade. How much punch does she need expl
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Please help me with this
Llana [10]
4 unknowns needs 4 equations. I'll call the unknown numbers a,b,c,d in that order left to right.

4 + a = b
a + b = c
b + c = d
c + d = 67

let's use substitution to get rid to combine equations and get rid of variables.
If a + b = c then a = c - b
4 + (c - b) = b
4 + c = 2b

If b + c = d then b = d - c
4 + c = 2(d - c)
4 + c = 2d - 2c
4 + 3c = 2d

then we have c + d = 67 so c = 67 - d

4 + 3(67 - d) = 2d
4 + 201 - 3d = 2d
205 = 5d
d = 41

Should be easy now, subtract backwards.

67 - 41 = 26
41 - 26 = 15
26 - 15 = 11
15 - 11 = 4

4, 11, 15, 26, 41, 67


3 0
3 years ago
What’s is 65% of 208
Marrrta [24]

1352.2 or

\frac{673}{5}

Step-by-step explanation:

\frac{65}{100}  \times 208 = answer

7 0
3 years ago
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