Ask question

Ask question

All categories

2 years ago

11

In a collection of nickels, dimes, andquarters the value of the collection is$12.85. If the number of nickels is 6 lessthan twic

e the number of dimes and thenumber of quarters is 5 more than twicethe number of dimes, how many quartersare there?

1 answer:

Sergio [31]2 years ago

7 0

30 quarters because you times 6 by 5 and that equals 30 than you divine that by 4 and that 7.5

You might be interested in

Which equation represents a linear equation?

AlekseyPX

Answer:

$y - 2 = - 5(x - 2)$

Step-by-step explanation:

$y - 2 = - 5(x - 2) \\ y - 2 = - 5x + 10 \\ y = - 5x + 10 + 2 \\ y = - 5x + 12 \\ y = 12 - 5x \\$

4 0

2 years ago

Rewrite! Write an new and equivalent equation that is easier to solve

Marysya12 [62]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

Given - <u>an </u><u>equation</u><u> </u><u>in </u><u>a </u><u>standard</u><u> </u><u>form</u>

To do - <u>simplify</u><u> </u><u>the </u><u>equation</u><u> </u><u>so </u><u>as </u><u>to </u><u>obtain </u><u>an </u><u>easier </u><u>one</u>

<u>Since </u><u>the </u><u>equation</u><u> </u><u>provided </u><u>isn't</u><u> </u><u>i</u><u>n</u><u> </u><u>it's</u><u> </u><u>general</u><u> </u><u>form </u><u>,</u><u> </u><u>let's</u><u> </u><u>first </u><u>convert </u><u>it </u><u>~</u>

<u>General</u><u> </u><u>form </u><u>of </u><u>a </u><u>Linear</u><u> equation</u><u> </u><u>-</u>

$\bold{ax + b = 0}$

<u>T</u><u>he </u><u>equation</u><u> </u><u>after </u><u>getting</u><u> </u><u>converted</u><u> </u><u>will </u><u>be </u><u>as </u><u>follows</u><u> </u><u>~</u>

$- 7 + ( \frac{4x + 2}{2} ) = 8 \\ \\ \implies \: \frac{ - 14 + 4x + 2}{2} = 8 \\ \\ \implies \: - 14 + 4x + 2 = 16 \\ \\ \implies \: 4x = 16 + 14 - 2 \\ \\ \implies \: 4x = 28 \\ \\\bold{ General \: form \: \dashrightarrow \: 4x - 28 = 0}$

hope helpful ~

6 0

1 year ago

Solve the equation. Then check your solution.

kvasek [131]

Answer:

x-4=2

x=2+4

x=6 is the answer

8 0

2 years ago

Read 2 more answers

425 school children were surveyed about what they want to be when they grow up, out of a choice of five professions. The results

hammer [34]

Given:

425 school children

Teacher : 80
Doctor : 105
Lawyer : 70
Police Officer : 70
Firefighter : 100
Total = 425

After applying Pearson's chi-squared test, it is concluded that this data reflects a real difference in the population.

$x^{2} = summation ((O_i - E_i)^2/E_i)$

6 0

2 years ago

75% as a fraction in simplest form

shepuryov [24]

Answer:

3/4

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers