raquelrios0622 raquelrios0622

03-04-2020
Mathematics

contestada

John saved 65 coins. He saved nickels and dimes only. If he had totally $4.90, how many nickels did he have?

Respuesta :

johnsong14306 johnsong14306

03-04-2020

Answer:

Step-by-step explanation:

Let n = nickels and d = dimes

n+d = 65

5n+10d = 490

Solve for n:

n = 65 - d

Substitute the equation:

325 + 5d = 490

5d = 165

d = 33

Answer Link

Otras preguntas

5. During the night, a child hide himself at the corner from his mother who wanted to bit him. The mother came with a torch calling him, but the child could onl

what % of food in the grocery store contains added sugars?

(If a=b^x, b=c^u and c=a^z, then what is the value of xyz?)

Almost all the helium in the universe was formed between 2-15 minutes after the Big Bang. True or False?

Calculate the area of the regular pentagon shown below. Give your answer to 1 d.p. 16.2 cm is one side of the pentagon

PLEASE HELP! HOW DO YOU SOLVE THIS?

After world war ii left a terrible toll on the people and property of europe, which staple goods were in short supply?

I NEED HELPPO NOWWW PLEASEEE!!

As a lifeguard, Kaia has received training in CPR. She sees a small child fighting a rip current in the ocean. Kaia swims out to retrieve the girl, trying to ho

Insert the correct symbol 5 _ 4