Need help....ASAP on both 7 AND 8

Mathematics

1 answer:

Kitty [74]4 years ago

6 0

Answer:

7)Amount of calories Ethan would burn running for 5 hours in one week= $650\times5=3250$ calories

8)Erosion caused by wave for 8 years would be= $3\times8=24$ cm

Step-by-step explanation:

7) Ethan burns 650 calories on running for an hour.

Amount of calories he would burn running for 5 hours in one week= $650\times5=3250$ calories

8) Erosion caused by wave per year =3 cm

Erosion caused by wave for 8 years would be= $3\times8=24$ cm

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Jacks mother gave him 50 chocolates to give to his friends for his birthday party. He gave 3 chocolates to each of his friends a

labwork [276]

Answer:

$3x+2=50$

There are 16 friends at Jack's party.

Step-by-step explanation:

Please consider the complete question.

Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends and still had 2 chocolates left. Write an equation to determine the number of friends (x) at Jack's party. Find the number of friends at Jack's party.

Since there are x friends at party, so chocolate given to x friends would be 3 times x $(3x)$ because Jack gave 3 chocolates to each friend.