Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\ dfrac34&\green{\text{Step } 1}\\\\ m&=2&\blue{\text{Step } 2} \end{aligned} 4 3 +m 4 3 +m− 4 3 m = 4 5 = 4 5 + 4 3 =2 Step 1 Step 2 Find Angela's mistake.
1 answer:
Answer:
The mistake she made was ; S he didn 't change the sign when subtracting - 3 / 4 from both sides
She wrote 5 / 4 + 3 / 4 instead of 5 / 4 - 3 / 4
Step-by-step explanation:
Correct solution:
Subt ract - 3 / 4 f rom b oth sides
Simplify
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<span>In order for a function to be one-on-one, no two elements of the domain may be paired with the same value of the range is true 100%</span>
Answer:
Step-by-step explanation:
All angles in a triangle add up to 180º, so we can make this equation.
7x-2+5x-10+4x=180
Combine like terms
16x-12=180
Add 12
16x=168
Divide
x=16.5
Answer:
I think 15
Step-by-step explanation:
Because there are 3 in every 20 and 20 goes into 100 5 times and 5×3=15