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Mkey [24]
3 years ago
14

How you solve this ?

Mathematics
1 answer:
jonny [76]3 years ago
3 0
You have to use Pythagorean theorem

12^2+20^2 = x^2

sqrt(144*400) = x^2
sqrt(544) = x

X = 4  sqrt(34)

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Jane used $68 more than two-fifths of her last paycheck to purchase a new surfboard. If the surfboard cost $289, find the amount
garri49 [273]

Answer:

552.5

Step-by-step explanation:

2/5x + 68 = 289

2/5 x = 289 - 68

2/5x       = 221

x = 221  * 5/2 = 552.5

I hope im right!!!

4 0
3 years ago
By selling an article for 3600$, a man takes profit of 20%. What would his gain % be if he sold the article for 4,000$
ddd [48]

Answer:

28%

Step-by-step explanation:

3600$ × 20%

=3600 ×(20/100)

=3600 × 0.2

= 720

Actual Price = 3600 - 720

= 2880

Profit is at 4000$ = 4000 - 2880

= 1120$

%profit = (1120/4000) × 100

profit = 28%

3 0
4 years ago
Read 2 more answers
Given the graph of a line y=−x. Write an equation of a line which is parallel and goes through the point (8,2).
serious [3.7K]

The slope of y = -x is m = -1.  Thus, starting with the slope-intercept form y = mx + b, we substitute -1 for m, 8 for x and 2 for y, to determine the vaue of b:

2 = -1(8) + b, or 10 = b.  Then the equation of the line parallel to y = -x and passing thru (8,2) is:

y = -x + 10.

3 0
4 years ago
The second of two numbers is 8 less than twice the first. their sum is 19. Find the two numbers
Radda [10]
The first number is 9 and the second number is 10. 10+9=10. 9*2=18 and 10 is 8 less than 18. All the requirements of the numbers are met.
3 0
3 years ago
Which cylinders have the same volume as the cylinder below? Check all that apply. A cylinder with height of 32 meters and diamet
Vladimir79 [104]

Answer:

10054.4m^3

Step-by-step explanation:

Given data

Height= 32m

Diameter= 20m

Radius= 10m

The expression for the volume of a cylinder is given as

V= πr^2h

Substitute

V= 3.142*10^2*32

V= 3.142*100*32m^3

Hence the volume is 10054.4m^3

6 0
3 years ago
Read 2 more answers
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