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Irina-Kira [14]
3 years ago
6

Justin is exchanging dollars for quarters and rolls of dimes each roll of quarters has value of 10$ and each roll of dimes has v

alue of 5$ he exchanges 90$ and gets 11 rolls of coins how many of each type of coins did he get
Mathematics
1 answer:
babymother [125]3 years ago
6 0

Answer:

7 rolls of quarters and 4 rolls of dimes = 11 rolls

Step-by-step explanation:

q=10 and d=5 and the total value is 90.

70 + 20 = 90

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Find the area and the circumference of a circle with radius 6cm.
OLga [1]

Answer:

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = 2πr

Where

r represents the radius of the circle

π is a constant whose value is 3.14

From the information given,

Radius = 6 cm

Therefore,

Circumference = 2 × 3.14 × 6

Circumference = 37.68 cm

The formula for determining the area of a circle is expressed as

Area = πr²

Area = 3.14 × 6² = 113.04 cm²

4 0
4 years ago
2.1 x 10^5 +4.3 x 10^4
Alla [95]

Answer:

253,000

Step-by-step explanation:

  1. 10^{5} = 100000  
  2. 10^{4} = 10000  
  3. Plug the above answers in: 2.1 × 100,000 + 4.3 × 10,000
  4. 2.1 × 100,000 = 210,000
  5. Plug 210,000 in: 210,000 + 4.3 × 10,000
  6. 4.3 × 10,000 = 43,000
  7. Plug 43,000 in: 210,000 + 43,000
  8. 210,000 + 43,000 = 253,000

I hope this helps!

4 0
3 years ago
Select all ratios equivalent to 30:6
Korolek [52]

Answer:

60 : 12

90 : 18

120 : 24

150 : 30

3 0
3 years ago
which of the following angles would from an obtuse isosceles triangle 100,40,40 30,75,75 90,30,60
Vesna [10]

Answer:

100, 40, 40

Step-by-step explanation:

7 0
3 years ago
if a triangle is an equilateral triangle then the triangle has exactly three 60 angles abc is an equilateral triangle​
Artist 52 [7]

Answer:

The statement is always TRUE

Step-by-step explanation:

An equilateral triangle has all angles and all sides equal

The sum of angles in a triangle is 180 degrees.

Let each of the angles be x degrees.

Then we solve the following equation for x.

x+x+x=180\degree

\implies 3x=180

\implies x=\frac{180}{3}=60\degree

7 0
4 years ago
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