Answer:
5.2307 %
Step-by-step explanation:
(acutal mass- estimated mass) / ( estimated mass)
Answer:
1. a²-b²
2.4b² + 5ab/2
Step-by-step explanation:
1:. it's a formula of a²-b² so, it can be solved like this and
2: I'm not sure about 2nd one
Interest = PRT/100
Compound interest = P(1 + (R/100))^T
Where P = Principle ( amount )
R = Rate
T = Time
Since the time is only 1 year, the answer will be the same for both interest and compound interest formulae.
∴ 4000(2)(1)/100 =$80 (This is the interest value)
Note if question ask you what is the total amount after x years, be sure to add the interest with the principle.
Answer:
$12
Explanation: 60 x .2= 12 + 60= $72
The right answer is Option D.
Step-by-step explanation:
Let,
Kyle's money = x
Hayden's money = y
Jeremy's money = z
According to statements;
Kyle has three times as much money in his savings account as Hayden.
x = 3y Eqn 1
Hayden has twice as much money in his savings account as Jeremy.
z = 2y Eqn 2
Combined Kyle, Hayden, and Jeremy have a total of $612.
x+y+z=612 Eqn 3
Putting value of x and z from Eqn 1 and 2 in Eqn 3

Dividing both sides by 6

Putting in Eqn 1;

Kyle has $306 in his account.
The right answer is Option D.
Keywords: Linear equations, division
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