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katrin [286]
3 years ago
15

Last week Julia ran 30 miles more than Pranav. Julia ran 47 miles how many miles did Pranav run?

Mathematics
1 answer:
Margaret [11]3 years ago
6 0
Pranav ran 17 miles.
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What is the answer plz help
atroni [7]

Answer:

108

Step-by-step explanation:

12/4=3

36 x 3 = 108

3 0
3 years ago
Factorise :x^2y^2-16​
Lyrx [107]

Answer:

(xy - 4)(xy + 4).

Step-by-step explanation:

The is the difference of 2 squares.  

a^2 - b^2 = (a - b)(a + b: so we have:

x^2y^2 - 16​ = (xy - 4)(xy + 4)

5 0
3 years ago
The height of a triangle is 8ft greater than the base. The area of the triangle is 136.5 square ft. Find the length of the base
mixer [17]

Answer:

the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

Step-by-step explanation:

Note that the formula for the area of a triangle is A = (1/2)(base)(height).  Let's abbreviate that to A = (1/2)(b)(h).   We are told that h = b + 8.

Then A = 136.5 = (1/2)(b)(b + 8), or

               (after multiplying both sides by 2)

          A = 273 = b^2 + 8b

                which, when put into standard quadratic form, becomes:

b^2 + 8b - 273 = 0

The coefficients of this quadratic are a = 1, b = 8 and c = -273.

Thus, the discriminant is b^2 - 4ac, or 64 - 4(1)(-273) = 1156 = 17^2.

The roots are then

      -8 ± √1156            -8 ± 17

x = --------------------  =  ------------ = 9/2 and -25/2

              2                          2

Only the root 9/2 makes sense here, because measurements of length are positive.

Thus, the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

3 0
3 years ago
Please hurry !!!!!!!!!!!!!!!!!
Elan Coil [88]

I think it may be: 0.66666666666

I only looked it up on the internet.

7 0
3 years ago
A pound of ground beef costs $5 At this rate, what is the cost of 3 pounds
Nataliya [291]

Answer:

$15

Step-by-step explanation:

if one pound is $5 and we need 3, then we can multiply the price of one pound by 3. (3×$5) This gives $15

8 0
2 years ago
Read 2 more answers
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