Ask question

Ask question

All categories

2 years ago

12

Robert used 34 grams of iron filings in his second experiment. This is 16 grams more than twice the number of grams he used in h

is first experiment. How many grams of iton filings did he usein his experiment.

1 answer:

sweet-ann [11.9K]2 years ago

3 0

34=2x + 16

18=2x

x=9

Robert used 9 grams of iron filings in his first experiment.

You might be interested in

2 FOR 2.20 UNIT RATE

dlinn [17]

Answer: (if your asking for the unit rate of that)

the unit rate is 1.10

5 0

1 year ago

If a soccer team played 160 games and won 65% of them, how many games did they win?

Sindrei [870]

The correct answer is 104 games.

You get that number by dividing 160 with a 100, to find out how large 1% is, and then you multiply it with 65 to find out how much 65% is, and the answer is 104 games.

4 0

2 years ago

Eight times a number increased by 9 exceeds 7 times the number by 15. Find the number.

Alborosie

Turn it into math terms bit by bit. let x be "a number"

8 times a number is 8×x

increased by 9 is +9

7 times a number is 7×x

exceeds is minus

by 15 is =15

now we put it together.

$8 \times x + 9 - 7 \times x = 15$
solve
$8x + 9 - 7x = 15 \\ x + 9 = 15 \\ x = 6$

5 0

2 years ago

Read 2 more answers

How to answer the question

bulgar [2K]

That is sudoku, a game that I am really good at. first off the square on the left in the middle is messed up, because on the square above it there is a 5 where it would make the 5 in the middle left square incorrect. So you have to erase the 5 in the square on the middle left. Then if you can do sudoku, you could do the rest.

hope I helped!

5 0

3 years ago

Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. q^2+7q

viva [34]

Stay in school q^2*7q cuh

8 0

2 years ago