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sergiy2304 [10]
3 years ago
13

Maria takes 25% of $26.50 and subtracts that amount from the normal price. She takes 10% of the discounted selling price and add

s it back to find the purchase amount
Mathematics
1 answer:
Irina18 [472]3 years ago
6 0
I got 1.9875. Just do exactly what the problem says. 26.50*25%=6.625 26.50-6.625=19.875 19.875*10%=1.9875
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Two stores carry a similar stereo for the same original price of $573. One store offers a 16% discount and the second store sell
nevsk [136]

Answer:

The second store price is cheaper beacuse 16% of 573 gives off $91.68 and when u do that u get $481.32 so 458.40 is cheaper.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Parallelogram ABCD has area 144, with AB = 16 and BC = 12. Find the length of segment DX.
liberstina [14]

Answer:

12

Step-by-step explanation:

The area of a parallelogram is equal to its base times its height. Segment DX is a height relative to the base BC, so (area of ABCD) = BC times DX,

144 = 12 times DX.

So, DX is 12. :)

8 0
3 years ago
Please help!! 10 points.
TiliK225 [7]

Answer:

\boxed{ \text{1. 59.44 in}^{2} \text{;  2. 352.7 in}^{2} \text{; 3. 471.6 in}^{2}}

Step-by-step explanation:

1. Area of base

The radius given is that of the circumcircle.

The general formula for the edge length a  of a regular polygon is

a = 2Rsin(π/n)

So,

a = 2 × 5 × sin(π/5) = 10sin0.6283 = 10 × 0.5878 = 5.878 in

The general formula for the area of a regular polygon is

A = ¼na²cot(π/n)

So,

A = ¼ × 5 × 5.878²cot(π/5) = ¼ × 5 × 5.878² × 1.376 = 59.44 in²

2. Lateral area

The general formula for the lateral area L of regular prism is

L = nah

So,

L = 5 × 5.878 × 12 = 352.7 in²

3. Total area

Total surface area = lateral area + 2×base area

S = L + 2B = 352.7 + 2 × 59.44 = 471.6 in²

\boxed{ \text{B = 59.44 in}^{2} \text{; L = 352.7 in}^{2} \text{; S = 471.6 in}^{2}}

3 0
4 years ago
Isabel baked 54 cookies. Her family ate x of them. Using x, write an expression for the number of cookies that remained.
gladu [14]

Answer:

54 - x = cookies that remain

Step-by-step explanation:

8 0
3 years ago
Instructions:Write the equation of the line with a slope of 3/4 and a y-intercept of -7 in Slope-Intercept and Point-Slope Form.
harkovskaia [24]

Answer:

slope form = y= 3/4x -7

point slope= y-(-3) = 3/4(x-3) or y-(-4)= 3/4(x-4)

Step-by-step explanation:

slope form = y= mx + b

y = 3/4x - 7

point-slope form = y - y1 = m(x - x1)

step 1. Substitute a convenient value of x into your equation and solve for y (You're doing this to get the point x1,y1). Let's choose x=3. Yes, you could choose x=4.

y= 3/4x - 7

if you choose x = 3

y=3/4(3) - 7

y = 4 -7

y = -3

(x1,y1) = (3,-3)

if you choose x = 4l

y= 3/4(4) - 7

y = 3 - 7

y = -4

(x1,y1)= (4, -4)

step 2. Substitute the point you found , (x1, y1) , into the point slope formula.

if you choose x=3

y-y1=m(x-x1)

y-(-3) = 3/4(x- 3)

if you choose x = 4

y- y1 = m(x-x1)

y - (-4) = 3/4(x-4)

brainliest is appreciated

7 0
3 years ago
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