We know that the puppy weights 56 ounces and it tells us that 1 pound = 16 ounces so every 16 ounces we have a pound. It wants to know how many pounds does the puppy weights. 56 / 16 = number of pounds. So 56 divided by 16 = pounds. The puppy weights 3.5 pounds
ANSWER
<span>A. x + 30 = 10 and x + 30 = –10
EXPLANATION
</span><span>If x represents the depth of Laurie at a given moment, then the distance between his current depth and -30 feet is given by
| x - (-30) |
which can be simplifed into
| x + 30 |
We use absolute value because distance cannot be negative.
Laurie must stay within 10 feet. Therefore, the distance x is from -30 feet has to be equal to 10 to find the maximum and minimum depths that Laurie can stay between:
| x + 30 | = 10
When we solve this absolute value equation, we work with two cases.
Case 1: When x + 30 is positive, then |x+30| = x+30 (no change) and we have the equation
x + 30 = 10
</span>Case 2: When x + 30 is negative, then |x+30| = -(x+30) so as to force the distance into a positive number. Then this gives us the equation
<span> -(x+30) = 10
which we can multiply both sides by -1 to get
x + 30 = -10</span>
You could make the numbers have a common denominator.
-3/7 --> -9/21
-2/3 --> -14/21
|-14/21| - |-9/21| = 5/21 difference.
5/21 is the distance.
Answer:
4(-5z+2)+(-6)=2(-10z+1) = True
Step-by-step explanation:
Suppose Tom has d dimes and q quarters.
total number of coins: d+q=23
total amount of money: 10d+25q=425
multiply the first equation by 10: 10d+10q=230
subtract the new equation from the second equation: 25q-10q=425-230,
15q=195
q=13
d=23-13=10
Tom has 10 dimes and 13 quarters.