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lina2011 [118]
3 years ago
11

Mark has 15 coins in dimes and quarters valuing $2.10 how many dimes does he have?

Mathematics
1 answer:
Slav-nsk [51]3 years ago
7 0
The answer is c I think
You might be interested in
Question:
prohojiy [21]

Answer:

x = 3/2 + sqrt(17)/2 or x = 3/2 - sqrt(17)/2

Step-by-step explanation:

Solve for x over the real numbers:

x/x - 1 = x - 3 - 2/x

x/x - 1 = 0:

0 = x - 3 - 2/x

0 = x - 3 - 2/x is equivalent to x - 3 - 2/x = 0:

x - 3 - 2/x = 0

Bring x - 3 - 2/x together using the common denominator x:

(x^2 - 3 x - 2)/x = 0

Multiply both sides by x:

x^2 - 3 x - 2 = 0

Add 2 to both sides:

x^2 - 3 x = 2

Add 9/4 to both sides:

x^2 - 3 x + 9/4 = 17/4

Write the left hand side as a square:

(x - 3/2)^2 = 17/4

Take the square root of both sides:

x - 3/2 = sqrt(17)/2 or x - 3/2 = -sqrt(17)/2

Add 3/2 to both sides:

x = 3/2 + sqrt(17)/2 or x - 3/2 = -sqrt(17)/2

Add 3/2 to both sides:

Answer: x = 3/2 + sqrt(17)/2 or x = 3/2 - sqrt(17)/2

3 0
3 years ago
PLS HELP ILL GIVE BRAINLEIST HELP PLSSSSS HURRRRRRYYYY
Monica [59]

Answer:

Are you asking for the pattern?

Step-by-step explanation:

If yes, then -

1st one = -2

2nd one = -3

3rd one = -4

4th one = -5

So, in each step in which we are moving forward, - 1 is being added to the equation

Please mark me as brainliest

6 0
3 years ago
HELP PLEASE ASAP!!!!!
JulsSmile [24]
Keep the base and add the powers.
25^(1/2)= 5
4 0
3 years ago
Read 2 more answers
Help help help please
Archy [21]
 that makes the  equation of the line perpendicular to it to be -1 / (1/6) = -6 

the general equation in point slope form is 

y-y1 = m(x-x1)    where m=slope and (x1,y1) = point on the line

so here we have:-

y - 23 = 6(x -(-3)

y - 23 = 6x + 18

y = 6x + 41    

thats the answer
3 0
3 years ago
Help me please will give brainliest <br> (has picture)
Anvisha [2.4K]
To add fractions, find the LCD and then combine.

Exact form:

9/2

Decimal form:

4.5

Mixed number form:

4 1/2

So, answer is

4 1/2

Hope this helps!
6 0
3 years ago
Read 2 more answers
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