Answer: 7/10 or 0.7
Step-by-step explanation: 77/10 in decimal form is 7.7. To make 7, you would need to subtract that .7 which would translate to 70/10 after it's subtracted, which is 7.
Answer:
the 1st and 4th
Step-by-step explanation:
Always divide by 10 first, for example; if it was 10% of 20 you would divide 20 by 10 to get 2. If it was 20% of 40 you would divide by 10 to get 4 then times by 2 to get 8.
Answer:
Step-by-step explanation:
Cross multiply on both sides
= (x + 1) (21) = 15(x + 3)
= 21x + 21 = 15x + 45
Bringing like terms on one side
21x - 15x = 45 - 21
= 6x = 24
x = 24/6 = 4
Option A is the correct answer
Answer:
What?!
Step-by-step explanation:
sry I dont under stand
