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Mila [183]
2 years ago
13

joe has a handful of dimes and quarters that values to $5.30. He has one fewer than twice as many dimes than quarters. How many

of each coin does he have?
Mathematics
1 answer:
OlgaM077 [116]2 years ago
5 0

Answer:

12 quarters 23 dimes

Step-by-step explanation:

x(0.25)+(2x-1)(0.10)=5.30

0.25x+0.2x-0.10=5.30

0.45x=5.40

x=12

12 quarters

12(2)=24-1=23 dimes

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A couch and coffee table cost a total of $1272. The cost of the couch is two times the cost of the coffee table. Find the cost o
Lunna [17]

Answer:

318+954

Step-by-step explanation:

divide 1272 by 2 to get what they would cost if they were the same amount then divide that by 2 to get 318 times that by 3 to get 954 and add 318 to get 1272

5 0
3 years ago
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Joan and Jane are sisters. Jean is Joan's daughter and 12 years younger than her aunt. Joan is twice as old as Jean. Four years
enot [183]
Jane is 16 twices as old as joan
8 0
3 years ago
Ten times the sum of half a number and 6 is 8.
Anna [14]

Answer: 10(x/2+6)=8

x/2 can also be 1/2x

4 0
4 years ago
What is the parent function for the following<br><br> f(x) = (x-2) (x-1)
Taya2010 [7]

Answer:

The parent function of  f(x) = (x-2) (x-1) is  P(x) = x^2- 3 x + 2.

Step-by-step explanation:

Here, f(x) = (x-2) (x-1)

Now, parent function of a given function is the function, which is PRODUCT OF ALL IT S FACTORS.

Now, here, f(x) has two factors ( x- 2) and ( x-1)

So, the parent function p(x) of f(x) is given as the product of both the factors.

So, we get:

P(x)  = (x-2) (x-1) \\=  x( x-1) -2(x-1)\\=x^2 - x -2x + 2\\= x^2- 3 x + 2\\\implies P(x) = x^2- 3 x + 2

Hence, here the parent function of  f(x) = (x-2) (x-1) is  P(x) = x^2- 3 x + 2.

6 0
3 years ago
PLEASSSSSSE HELLOOPpppppppppp
liraira [26]
Volume of a rectangular prism is length * width * height. 

The figure can be broken into 3 different prisms. Left to right, I'd label them 1st tower, connecting base, 2nd tower. 

I'll do the 2nd tower first since it has the most measurements. 5 * 5 * 12 = 25 * 12 = 300

The first and second towers are congruent so they have the same measurements; we just do 300 + 300 to find their volumes. It's 600. 

Now, to find the connecting piece. The whole bottom length of this "U" shaped figure is 18 but the two towers have lengths of 5. To find the base of the portion we're looking for, we do 18 - 2(5) = 18 - 10 = 8. To find the height, we take away the top part of the second tower (7 m) from the whole height (12 m). 12 - 7 = 5. The width is given by the towers so we have what we need to solve. 

8 * 5 * 5 = 40 * 5 = 200

Now add the volumes all together. 

600 + 200 = 800

The figure has a volume of 800 cubic meters or 800 m³.
8 0
3 years ago
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