Answer:
C. 13 inches
Step-by-step explanation:
using pythagorean theorem
a^2 + b^2 =c^2 where a and b are the legs and c is the hypotenuse
5^2 + 12^2 = c^2
25+144 =c^2
169 = c^2
take the square root of each side
sqrt(169) = sqrt(c^2)
13 = c
5 / 7/8 is the same as doing 5 times the reciprocal of 7/8, or
5 • 8/7.
And since 5 is really 5/1, we can just multiply the two fractions together as you would usually do.
5/1 • 8/7 = 5•8/1•7 = 40/7
Answer is 40/7
Answer :
6. x=28
7.x =6
8. x =9
9. x =9
Step-by-step explanation:


6.
(x+2)/10 = 3
Cross multiply
x+2 = 10 ×3
x+2 =30
Collect like terms and simplify
x =30-2
x = 28
7.


8x +9 -5x= 27
Collect like terms and simplify
8x-5x =27-9
3x =18
Divide both sides of the equation by 3
3x/3 = 18/3
x = 6
8.
10x+8=8x+26
Collect like terms
10x-8x=26-8
2x = 18
Divide both sides of the equation by 2
2x/2 = 18/2
x = 9
9.
2(x-5)+4x=x+35
Use 2 to open the bracket
2 × x =2x
2×(-5) =-10
2x-10+4x =x+35
Collect like terms and simplify
2x+4x-x = 35+10
5x = 45
Divide both sides of the equation by 5
5x/5 = 45/5
x =9
Answer:
y = -14 in simplest form hope this helped
Step-by-step explanation: