Your friend used the proportion 25/100 = 50/? to find 25% of 50 and says that the answer is 200. Explain why your friend is incorrect and find the correct answer.
Factorising an equation is putting it into bracket form. This has square numbers and so needs double brackets
(5x - y) (5x+y) If you then check this by multiplying the brackets out again you will get: 5x^2 - 5xy + 5xy - y^2
The positive and negative 5xy's cancel each other out and you are left with its original form. Your answer is (5x - y) (5x+y)
What is the opposite of the rational number -7.8
Answers
The opposite of the number -7.8 is 7.8
Opposite numbers are the numbers with the same magnitude but different signs. so the opposite of the -7.8 is 7.8 :))) i hope this is helpful have a nice day
Tim rarely spends more than 30 minutes watching TV in the afternoon if Tim begin watching TV at 4 p.m. would you expect him to still be watching tv at 5:00pm explain
Answers
No because 30 minutes past 4 is 4:30. If he was still watching at 5:00 it would be more than double
Answer:
Yes
Step-by-step explanation:
Four years ago Hakim borrowed 275$ to help pay for tires. He agreed to pay interest to pay at a simple annual interest rate by 4%. how much did Hakim owe at the end of four years? A. 286$ B. 319$ C. 715$ D. 1375$
Answers
Simple interest is I = prt I=275(.04)(4) I= $44 $285+$44=$319 Letter B
Answer:
$319
Step-by-step explanation:
What is the solution to the equation?7(5 + 9) = 7 · x + 7 · 9
A. x = 1
B. x = 5
C. x = 7
D. x = 9
Answers
B. X=5
7(5+9)=7•x+7•9 (7•5)+(7•9)=7x+63 35+63=7x+63
Subtract 63 from both sides and you will be left with 35=7x Divide each side by 7 (you pretty much just divide 35 by 7)
And x=5
To get the answer we have to solve eq. 7(5+9)=7x+7*9 7*5+7*9=7x+63 35+63=7x+63 /-63 35=7x /:7 5=x The correct answer is B.
Can u please show me the work to 67,473 divided by 32
Answers
This is the answer to 67,473 divided by 32. I hoped this helped. I used colors to hopefully help you more.