5+2=7
Multiply each side by 3.
7(9x + 3) = 30
Expand the brackets
63x + 21 = 30
Subtract both sides by 21
63x = 9
Divide both sides by 63
X = 1/7
( always sub answers back in to question to make sure it’s right )
Answer:
20 i think
Step-by-step explanation:
Answer:
2.4
Step-by-step explanation:
Answer:
30m/sec
Step-by-step explanation:
v=s/t
given s= 10m
t=1/3 sec
v= 10/(1/3)=10×3/1= 30 m/s
Identify the legs and the hypotenuse<span> of the </span>triangle<span>. You know that the </span>triangle<span> is a right </span>triangle<span> since the ground and the raised portion of the porch are perpendicular—this means you can use the Pythagorean Theorem to solve this problem. Identify a, b, and c. Use the Pythagorean Theorem to find the length of c.</span>