A hypothesis is only tentative: to make sure it's valid, you have to test it.
30÷25=1.2
she reads 1 page in 1.2 seconds
there fore 1.2×200=240
the answer is 240 seconds
All you do is solve for z. So 8z-13=7. To solve for a variable you have to do the opposite to cancel out the numbers on each side. First you add 13 over to 7 to cancel out 13 on the z side. So 8z=20 is what you have left. Then you divide 8 on both sides to cancel out 8 on the z side. what you are left with is z=2.5. Lastly you plug and check. 8(2.5) - 13 = 7, 20-13=7. And thats correct so z is 2.5.
Answer:
6,000= y
2hrs= x
y=x
6,000y= 2=x
Step-by-step explanation:
Answer:
D 49.1
Step-by-step explanation:
Hope it helps
have a great day