All categories

3 years ago

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)...

You might be interested in

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

3 0

2 years ago

Write down a pair of integer whose sum is -6

Wittaler [7]

0 , -6
6 , -12
4 , -10
-3 , -3
These are the ones i could think of now

8 0

3 years ago

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

Effectus [21]

Answer:

The average length of a ladybug is . 3 to . 4 inches.

7 0

2 years ago

Please help! This is timed

gulaghasi [49]

I think the answer is C 1 2/3

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:

#LearnwithBrainly

5 0

2 years ago