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goldfiish [28.3K]
3 years ago
13

Plz help with math problems I'm confused. Giving brainlist :D

Mathematics
1 answer:
kati45 [8]3 years ago
5 0
5 - substitute the numbers 1-10 for n in (3n-4) and add up all your answers. So (3(1)-4) + (3(2)-4)...
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If ◻SLED ~ ◻PARK which of the following statements are incorrect?
san4es73 [151]

Answer:

  ◻DELS ~ ◻KARP is incorrect

Step-by-step explanation:

All of the similarity statements have corresponding letters in the same order except ...

  ◻DELS ~ ◻KARP . . . . (incorrect)

_____

The correct version would be ...

  ◻DELS ~ ◻KRAP

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Which is the best estimate for the length of a lady bug?
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Answer:

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gulaghasi [49]
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4 0
3 years ago
Read 2 more answers
Part of the proceeds from a garage sale was $470 worth of $10 and $20 bills. If there were 14 more $10 bills than $20 bills, fin
Brums [2.3K]

There are 25 $10 bills and 11 $20 bills.

Step-by-step explanation:

Given,

Worth of proceeds from garage = $470

Let,

x be the number of $10 bills

y be the number of $20 bills.

According to given situation;

10x+20y=470       Eqn 1

x = y+14                Eqn 2

Putting value of x from Eqn 2 in Eqn 1

10(y+14)+20y=470\\10y+140+20y=470\\30y=470-140\\30y=330

Dividing both sides by 30

\frac{30y}{30}=\frac{330}{30}\\y=11

Putting y=11 in Eqn 2

x=11+14\\x=25

There are 25 $10 bills and 11 $20 bills.

Keywords: linear equation, substitution method

Learn more about linear equations at:

  • brainly.com/question/1279756
  • brainly.com/question/1284310

#LearnwithBrainly

5 0
2 years ago
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