Answer:
1. It means that m equals 7.5
2. It means 4.5 plus s equals m
3. It means n times s equals 6
4. It means m plus n times s equals t
Step-by-step explanation:
Source: Just trust me bro
Answer:
a = -2
Step-by-step explanation:
-3a + 8 = 14
14 - 8
= 6
-3a = 6
6/-3
= -2
a = -2
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Answer:
m = - 7
Step-by-step explanation:
Given
6(m - 1) = 3(3m + 5) ← distribute parenthesis on both sides
6m - 6 = 9m + 15 ( subtract 9m from both sides )
- 3m - 6 = 15 ( add 6 to both sides )
- 3m = 21 ( divide both sides by - 3 )
m = - 7
Answer:
2. y = x + 16; 0.21y = 0.27x + 2.88
Step-by-step explanation:
You have two conditions:
- Volume of 18 % + volume of 27 % = volume of 21 %
- Mass of acid in 18 % + mass of acid in 27% = mass of acid in 21 %
For the first condition,
16 + x = y Transpose
(1) y = x + 16
=====
For the second condition
V₁c₁ + V₂c₂ = V₃c₃
16×0.18 + 0.27x = 0.21y
2.88 + 0.27x = 0.21y Transpose
(2) 0.21y = 0.27x + 2.88
The system of equations is y = x + 16; 0.21y = 0.27x + 2.88
Answer:
D. Mathematical expressions for the relationships
Step-by-step explanation:
Quantitative analysis also called QA for short is the technique that tries to understand behaviour by using mathematical and statistical modeling, measurement and research. A quantitative analyst aims to represent a given reality in terms of numerical value. This can be achieved by using mathematical formulas and expressions to explain the relationships that exists between the variables. The data analyzed are usually gotten from polls and questionnaires or in general, well structured research instruments.
