The solution to the linear expressions are:
- a. $36.26
- b. -$19.35
- c. $70.38
<h3>Solving linear expressions:</h3>
The solution to linear expression is determined by taking into consideration the arithmetic operations used in each linear expression.
From the information given:
a. $18.79 + $2.11 + ‐$1.92 + $17.28
By rearrangement:
= $18.79 + $2.11 + $17.28 ‐$1.92
= $36.26
b. $7.45 + ‐$24.45 + $74.17 + ‐$76.52
By rearrangement:
= $7.45 + $74.17 ‐ $24.45 ‐ $76.52
= -$19.35
c. $98.45 − $10.63 + $2.82 − $20.26
By rearrangement:
= $98.45 + $2.82 − $10.63 − $20.26
= $70.38
Learn more about solving linear expressions here:
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Answer:
letter b
Step-by-step explanation:
Answer:
Economics and political science but not Geography
is right answer i think
9514 404 393
Answer:
proportional
Step-by-step explanation:
The equation ...
y = kx
expresses a proportional relationship for any constant of proportionality k.
Your equation with k = -4 expresses a proportional relationship.
Answer:
Step-by-step explanation: Let x represents Sara's age, since Ralph is 3 times as old, the Ralph's age will be 3x.
In 4 years time, Sara will be x+ 4 , Ralph will also be 3x + 4
It was said that Ralph will be as twice as Sara's age in 4 years
⇒ 3x + 4 = 2 ( x+4)
⇒ 3x + 4 = 2x + 8
collecting the like terms
3x - 2x = 8 - 4
x = 4
Since x represents Sara's age, then Sara is 4 years and since Ralph is presently 3 times Sara's age, then Ralph's age is 3 x 4 = 12 years
