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Veronika [31]
2 years ago
13

Rafiq is given a 10% pay increase.

Mathematics
1 answer:
Artemon [7]2 years ago
8 0
$270 (i think i could be completely wrong though)
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A collection of dimes and quarters is worth $10.45. There are 70 coins in all. Find how many of each there are
Advocard [28]

There are 47 dimes and 23 quarters.

Step-by-step explanation:

Total amount = $10.45 = 10.45*100 = 1045 cents

Total coins = 70

1 dime = 10 cents

1 quarter = 25 cents

Let,

Dimes = x

Quarters = y

According to given statement;

x+y=70   Eqn 1

10x+25y=1045   Eqn 2

Multiplying Eqn 1 by 10;

10(x+y=70)\\10x+10y=700\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(10x+25y)-(10x+10y)=1045-700\\10x+25y-10x-10y=345\\15y=345

Dividing both sides by 15;

\frac{15y}{15}=\frac{345}{15}\\y=23

Putting y=23 in Eqn 1

x+23=70\\x=70-23\\x=47

There are 47 dimes and 23 quarters.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/12954015
  • brainly.com/question/13018923

#LearnwithBrainly

6 0
3 years ago
Basic math for 20 points + brainliest!
kkurt [141]

Answer:

Look at photo

Step-by-step explanation:

4 0
3 years ago
iven: KLMN is a trapezoid m∠N = m∠KML ME ⊥ KN , ME = 3 sqrt 5 , KE = 8, LM KN = 3/5 Find: KM, LM, KN, Area of KLMN
Vsevolod [243]
Hello,
Please, see the attached file.
Thanks.

4 0
3 years ago
Define the following terms in your own words:
N76 [4]

Answer:

1.    polynomial is a kind of mathematical expression

2.  degree of a polynomial is the highest of the degrees of its monomials (individual terms) with non-zero coefficients

3.  a coefficient is a number used to multiply a variable.

4.   A exponent refers to the number of times a number is multiplied by itself

5.     a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number

8 0
3 years ago
Do the following lengths form a right triangle?
evablogger [386]

Answer:

2 3 4 do, 1 does not

Step-by-step explanation:

Using the Pythagorean Theorem, we can see that the square of the 2 smaller sides, when added together, is equal to the square of the longer side of each of the example triangles.

8 0
3 years ago
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