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Harman [31]
3 years ago
14

Tammy has a ten dollar bill. She purchases an unknown number of magazines for $3.00 each and gets $4.00 change back. Which equat

ion represents this?
a) 10 – 3x = 4
b) 6 – 3x = 10
c) 2 + 3x = 10
d) 4 – 3x = 10
Mathematics
2 answers:
hammer [34]3 years ago
7 0

Answer:

a

have a good day give thanks and brainliest plz

wel3 years ago
3 0

Answer:

its A

Step-by-step explanation:

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24÷4=6
Multiply 6 by 3 because the numerator is 3.
6×3=18
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Rectangle FGHJ is transformed according to the rule T(–3, –2)ry = x. What is the y-coordinate of J”?
irga5000 [103]
We have that
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therefore
J (10,-6)----------------- > (10-3,-6-2)--------> (7,-8)

the answer is 
<span>the y-coordinate of J” is -8</span>
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Which is the slope of the line y=−3x+2?
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3 years ago
Find the surface area of a cylinder with a height of 7 m and a base radius of 6 m.
weqwewe [10]

Answer:

489.84 m²

Step-by-step explanation:

Area of one 2d circle: πr² ⇒ π6² ⇒ 36π ≈ 113.04 (using 3.14 for pi)

Area of both 2d circles: 113.04 + 113.04 =226.08 m²

Now we have to find the width of the rectangle, which is equal to the circumference of either circle:

Width of rectangle: 2πr ⇒ 2π6 = 12π ≈ 37.68 (using 3.14 for pi)

We can find the area of the rectangle now, since the length was given

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Surface Area: 263.76+226.08= 489.84m²

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6 0
3 years ago
The length of a rectangle is five times it’s width if the area of the rectangle is 320m^2 find its perimeter
BlackZzzverrR [31]

Answer:

Perimeter of the rectangle = 96 meters.

Step-by-step explanation:

Let the width of the rectangle = K

So, the length of the rectangle = 5K

Area  = 320 sq meters

Now, Area of a Rectangle  = Length x Width

⇒  320  = K x  5K

or,5K^{2} = 320\\or, K^{2}  = \frac{320}{5}   = 64

So, the vlue of K = 8 or, K = -8

But as K represents a length hence, K ≠ -8

So, the <u>width of the rectangle = 8 meters</u>

and the<u> length  of the rectangle = 8 x 5 = 40 meters</u>

Now, Perimeter = 2(length + width)

                            = 2(8 + 40) = 96 meters.

So, the perimeter of the rectangle = 96 meters.

6 0
3 years ago
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