<u>old:</u> $16
<u>new:</u> $20
<u>percent increase</u>
-> formula: (new-old / old) x 100
(20-16 / 16) x 100
4/16 x 100
0.25 x 100
answer: 25% increase
The scientific notation, 6.24 x 10^-4, means that the 6.24 is multiplied to 10 which is raised to exponent -4. 10^-4 has a regular number value of 0.0001. To determine the regular number expression of the given scientific notation, multiply 6.24 by 0.0001 which gives an answer of 0.000624.
Answer:
0
Step-by-step explanation:
-2x+7=3
First you want to get the variable alone. To do that you need to subtract 7 from both sides
-2x+7(-7)=3(-7)
-2x=-4
Next you need to divide -2 on both sides to isolate the variable.
-2x/-2=-4/-2
-2/-2 is 0 and -4/-2 is <em>positive </em>2 because a negative divided by a negative is positive.
x=2
Since x=2 you can plug in 2 into 5x-10 to get the final answer.
5(2)-10
10-10
0
I hope this helps you
1 1/4=1.4+1/4=5/4
6 2/3=6.3+2/3=20/3
5/4×20/3
5×20/4×3
25/3
8 1/3
Answer:
<h2>x =-1 , x=4</h2>
Step-by-step explanation:
