Step-by-step explanation:
Approach: If four numbers a, b, c and d are in proportion then a:b = c:d. The solution is to sort the four numbers and pair up the first 2 together and the last 2 together and check their ratios this is because, in order for them to be in proportion, the product of means has to be equal to the product of extremes.
Answer:
a = 42
Step-by-step explanation:
2a + 16 + 80 = 2a + 96
2a + 96 = 180
2a = 84
a = 42
<h2>
Forming Equations from Word Problems</h2>
To form an equation from a word problem, we can recognize variables and operations from keywords.
<h2>Solving the Question</h2>
Let the number of weeks be <em>a</em>.
We're given:
- Goal amount is $200 at minimum
- Money earned is $15a
- Current amount is $32
Because $200 is the minimum account required, we know that the amount earned must be greater than or equal to 200.

Our current savings and money can be calculated by adding 15a and 32:

<h2>Answer</h2>

according to the chart below, what percentage of ralph’s expenses are items other than taxes?
a. 65%
b. 71%
c. 75%
d. 94%
the answer is A 65%
I don’t know but have a good day