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katovenus [111]
3 years ago
10

A pile of 42 coins worth $4.90, consisting of nickels and quarters. How many nickels are there?

Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer:14

Step-by-step explanation:

A nickel is 5 cents (20% of dollar)

and a quarter is 25 cents (25% of dollar)

We have given a pile of 42 coins worth of $4.90

Let x be the no nickels and

y be the no of quarter

therefore

x+y=42    -----1

\frac{x}{4}+\frac{y}{20}=4.90 ---2

Solving \left ( 1\right )&\left ( 2\right ) we get

x=14 & y=28

Therefore no of nickels is 14 & no of quarters is 28

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If x=-3, then the solution of the equation 2x+6 is ?
Vlada [557]

Hello!

if x = -3, just substitute it for x (replace the x with -3)

2(-3) + 6 = 0

2 * -3 = -6

-6 + 6 = 0

I hope this helps, and have a nice day!

6 0
3 years ago
mother divided the money among jan, jane and jello , in the ratio 4:9:6. If Jan got $200, find the total amount and money receiv
Kay [80]

Step-by-step explanation:

Let,

  • Money received by Jan = 4x
  • Money received by Jane = 9x
  • Money received by Jello = 6x

According to the question,

→ Money received by Jan = $200

→ 4x = $200

→ x = $200 ÷ 4

→ x = 50 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀… ( 1 )

Now,

→ Money received by Jane = 9x

→ Money received by Jane = 9($50)

→ <u>Money received by Jane = $450</u> [Ans]

And,

→ Money received by Jello = 6x

→ Money received by Jello = 6($50)

→ <u>Money received by Jello = $300</u> [Ans]

6 0
3 years ago
Ms. Warren asked her students to write a sequence of steps to construct a line parallel to a given line MN and passing through a
joja [24]
The answer to this question is A
5 0
3 years ago
What is 32.5% as a fraction and decimal
m_a_m_a [10]
Decimal: 32.5 
Fraction 65/2
5 0
4 years ago
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Parallelogram R S T U is shown. Diagonals are drawn from point R to point T and from point U to point S and intersect at point V
stiv31 [10]

Answer:

Option C.

Step-by-step explanation:

Given information: RSTU is a parallelogram, Digonals RT and SU intersect each other at point V, UV=(x-3) and VS=(3x-13).

According to the properties of a parallelogram, the diagonals of a parallelogram bisect each other.

Using the properties of parallelogram we can say that point V divides the diagonal SU in two equal parts, UV and VS.

VS=UV

3x-13=x-3

Subtract x from both sides.

2x-13=-3

Add 13 on both sides.

2x=10

Divide both sides by 2.

x=5

Therefore, the correct option is C.

3 0
3 years ago
Read 2 more answers
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