His present age is 13 years.
<h3>How to solve words problems ?</h3>
The words problem can be solved as follows:
let
his present age = x
Therefore,
3(x + 5) = 54
Hence,
3(x + 5) = 54
3x + 15 = 54
subtract 15 from both sides
3x + 15 - 15 = 54 - 15
3x = 39
divide both sides by 3
3x / 3 = 39 / 3
x = 13
learn more on words problem here: brainly.com/question/11551965
#SPJ1
1. Obtuse; scalene
2. Acute; equilateral
3. Right; scalene
4. Acute or obtuse; isosceles
Explanation:
Obtuse is an angle >90 degrees
Acute is an angle <90 degrees
Right is an angle equal to 90 degrees
Equilateral means all sides are equal
Isosceles means two sides are equal
Scalene means no sides are equal
Answer:
144
Step-by-step explanation:
The difference between the amounts of interest Marcus and Gianna paid for their car loan is $50
<h3>The amount and simple interest</h3>
The formula for calculating the amount on simple interest is given as:
A = P + I
I = PRT
A = PRT + P
Given the following paramteers
A = 10000(0.047)(5) + 100000
A = 2350 + 10000
A = 12350
For Gianna
A = 10000(0.045)(5) + 100000
A = 2250 + 10000
A = 12250
Difference = 12350 - 12250 = $50
Hence the difference between the amounts of interest Marcus and Gianna paid for their car loan is $50
Learn more on simple interest here: brainly.com/question/25793394
493k is correct B was the one that I think is right