Let 
be the number of liters of the 10% solution she needs to use. She'd end up with a 6% solution with a volume of 
liters. The starting solution contains 0.04*9 = 0.36 liter of salt. Each liter of the 10% solution contributes 0.1 liter of salt, so that
Solve for :
so Mayra needs to add 4.5 liters of the 10% solution.
The errors Emma made are
- She should have used division to represent the quotient of six and x
- She should have used parentheses to show that - 2 is multiplied by (x - 4.5)
<h3>Writing an expression as an equation</h3>
From the question, we are to determine the errors that Emma made
The given statement is
"The quotient of six and a number, x, is the same as negative two times the difference of x and 4.5"
"The quotient of six and a number, x", can be expressed as
6/x
"Two times the difference of x and 4.5", can be expressed as
2(x - 4.5)
Hence, the errors Emma made are
- She should have used division to represent the quotient of six and x
- She should have used parentheses to show that - 2 is multiplied by (x - 4.5)
Learn more on Writing an expression as an equation here: brainly.com/question/13155862
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Answer:
3√10/5
Step-by-step explanation:
Rationalize √15
Answer:
See explanation
Step-by-step explanation:
Connect points A and O and B and O. Consider two right triangles AOE and BOE. In this triangles,
- AO=BO as circle's radii;
- OE is common leg.
By HL theorem, these triangles are congruent, thus, AC=BC.
If m is miles miles driven to stay within budget
given:
(daily budget) - (daily rental fee) =
+92+-+40+=+52+
$52 is left for milage cost
+52+%2F+.2++=+260+ (dollars)/(dollars/mile)
A maximum of 260 miles/day driven will allow you to stay within budget
(so the answer is 260 miles/day)
