5 t-shirts and a hat costs £1700
2 t-shirts and a hat costs £8.00,
How much does a t-shirt cost?
How much does a hat cost?
©
t-shirt: £
hat: £

t-shirt: £3.00

hat: £2.00

Step-by-step explanation:

Writing equation for both statements. Let x represent number of t-shirts and y represent number of hats

5x+y=17.00

2x+y=8.00

Subtracting the second equation from the first equation we obtain

5x-2x+y-y=17.00-8.00

3x=9.00

X=9.00/3=3.00

Substituting the value of x into the second equation

2x+y=8.00

2(3.00)+y=8.00

y=8.00-6.00=2.00

Therefore, x =3.00 and y=2.00

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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