Answer:
4 years old
Step-by-step explanation:
Tracy's age = x
Tracy's mother's age = 6x
x + 6x = 28
7x = 28
x = 4
Tracy is 4 years old
The value of the first 5 is 5 ten thousands and the second 5 i 5
thousands while the value of the first 2 is 2 hundreds and the second 2
is 2 tens.
<h2>
Answer:</h2>
y = 5
<h2>
Step-by-step explanation:</h2>
<em>Solution:</em>
7y = 5y + 10
7y - 5y = 10
2y = 10
= 
y = 5
<em>Checking:</em>
7y - 5y = 10
7(5) - 5(5) = 10
35 - 25 = 10 ✓
<h2>#Brainliest</h2><h2>#CarryOnLearning</h2>
Answer:
The digit '0' is in the ones place.
Answer:
y = 650·0.922^t
Step-by-step explanation:
At the end of each year, 92.2% of the amount at the beginning of the year remains. That is, the beginning amount is multiplied by 0.922. The exponent t in 0.922^t tells how many times (years) that multiplication has taken place. At the end of t years, the amount remaining in milligrams (y) is ...
y = 650·0.922^t
