1. y+5=-x-5
2. y=-x-5-5
3.y=-x-10
4. y=x-10
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1. distribute negative sign
2. move the constant to the right and change the sign
3. -5-5 equals -10, bring everything down
4. change the sign of the x to positive, the equation is in standard form
Answer:
Jessica is 14 years old.
Step-by-step explanation:
Let equal Olivia's age, let equal Jessica's age, and let equal Daniel's age. With this lets write out what we know:
Answer:
You would want to draw the middle (not shaded part) of the graph.
Red is x-y=0
Blue is x+y=8
1. Since 12 took both, subtract 12 from 20 and 25.
Now we have 8 taking only chemistry, 13 taking only biology, and 12 taking both. Add all those together to get 33.
Subtract 33 from 50 to get 17, which is the number of students taking neither.
2. He had 3 nickels, 1 quarter, and 6 dimes.
This is an equation that represented his coins:
3n + 1q + 6d = 1.00
3 x .5 = .15 1 x .25 = .25 6 x .10 = .60 .60 + .25 = .85 .85 + .15 = 1.00
3. Add together 7 and 11 to get the 5th and 6th graders: 18 students.
The remaining 4th graders make up 1/3 of the team, so 18 is 2/3 of the team.
Find 1/3 by dividing 18 by 2 to get 9.
There are 9 4th graders.
Hope this helps!
Answer:
Equation A) is the correct equation:
13 + t = 17
t = 17 -13
t = 4
Step-by-step explanation: