7x+6x=650
13x= 650
Divide by 13
X= 50
She saves 7(50)= 350
She speeds 6(50)=300
The end time is 7:44. Hope this helps!
9 is the blank.
(a+b)^2 = a^2 + 2ab + b^2
a = x
b = 3
(x+3)^2 = x^2 + 6x + 9
The questions 1, 2, and 5 are already matched in correct order.
<u>Step-by-step explanation:</u>
1. <u>Meter</u> - standard metric unit of length.
2. <u>hypothesis</u> - a proposed explanation for a scientific problem.
3. <u>mass</u> - amount of matter in an object.
4. <u>liter</u> - standard unit of volume.
5. <u>control</u> - a quantity in an experiment that remains unchanged or constant.
6. <u>meniscus</u> - the curved top surface of a liquid column.
