noeliaortiz3677 noeliaortiz3677

03-07-2021
Mathematics

contestada

Ben has twenty-six coins in her pocket are all dollars(1$ coins) and quarters, and they add up to seventeen dollars in value. How many of each coin does he have

Respuesta :

04-07-2021

Answer:

14 $1 coin

12 quarter coin

Step-by-step explanation:

Let :

x = $1 dollar coin

y = $0.25 (1 quarter) coin

x + y = 26 - - - (1)

1x + 0.25y = 17 - - - - (2)

From (1) :

x = 26 - y

Put x = 26 - y in (2)

1(26 - y) + 0.25y = 17

26 - y + 0.25y = 17

-y + 0.25y = 17 - 26

-0.75y = - 9

Divide both sides by - 0.75

-0.75y /- 0.75 = - 9 / - 0.75

y = 12

Put y = 12 in (1)

x = 26 - 12

x = 14

Answer Link

Otras preguntas

i need help on this. can someone help me

I need some story ideas for language paper 1

PLEASE HELP! 30 POINTS. A metallic paperweight in the shape of a rectangular prism measures 9 centimeters by 4 centimeters by 4 centimeters and has a mass of 12

Why did the Chinese require the Portuguese to pay for goods in gold and silver when trading? Portuguese goods were less valuable than Chinese goods. The Chine

Explain the steps that you take to complete an integer long division problem. Then explain the steps in completing a polynomial long division problem. How are t

Find the value of the following expression: (2^8 ⋅ 5^−5 ⋅ 19^0)^−2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 Writ

Solve x2 + 1/2x +1/16=4/9

20 elements of the periodic table

25POINTS In the future days, which we seek to make secure, we look forward to a world founded upon four essential human freedoms. The first is freedom of speech

Find the first five terms of the described sequence: Start with 6 and add 7 repeatedly. State whether the sequence is arithmetic, geometric, both, or neither.