Answer:
210 minutes
Step-by-step explanation:
7(30) = 210
To solve this problem, we just need to change the described expression into a numerical one.
Our answer is 7(y-1).
This is because the difference of y and 1 refers to the operation of subtraction, and this shows us that we need to subtract 1 from the value that is represented by y. The fact that it says 7 times the difference of y and 1 shows us that we must multiply the quantity y-1 and 7 (meaning we must perform the subtraction between y and 1 before the multiplication with 7). This is what indicates to us that we need parentheses, which allow us to perform this operation first, outlined by the rules of PEMDAS referring to the order of operations.
Hope this helps!
Answer:
D C B
Step-by-step explanation:
The correct answer is A. <span>The independent variable is the temperature of the water, and the dependent variable is the amount of sugar dissolved. The independent variable is the one that isn't affected by any of the other variables. The dependent variable is the one being studied, measured, and affected in the experiment. Obviously, Eman wants to measure the amount of sugar that dissolves in water.</span>
Set the ones digit to x. 2x+1=7, so 2x=6, so x=3.
x+1 is the tens digit, so the tens digit is 4 and the number is 43.
