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masya89 [10]
3 years ago
6

How do I solve systems of equations by sub substitution?

Mathematics
1 answer:
Maksim231197 [3]3 years ago
7 0
Help me solve this problem - x + 3x/(x + 3)^x(x + 3)
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What goes in the table?
Vlada [557]
Well a chicken has 2 legs so do 2 times however many chickens there are to get the total of chicken legs. a pig has 4 legs so do 4 times however many pigs there are to get the total of pig legs. once u have those answers, do the total of pig legs plus the total of chicken legs to get your total of legs. for the number of heads, do the number of chickens plus the number of pigs.
4 0
3 years ago
2. The variable expressions represent the angle measures of a triangle. Find the measure of each angle. Then classify the triang
Umnica [9.8K]

Answer:

Step-by-step explanation:

The triangle KLM is shown in the attached photo. The sum of the angles in a triangle is 180 degrees. It means that

angle K + angle L + angle M = 180 degrees. Since

m angle K=(10x+10). m angle L=(9x-3). m angle M=(7x-9), then

10x + 10 + 9x - 3 + 7x - 9 = 180

10x + 9x + 7x = 180 + 9 + 3 - 10

26x = 182

x = 182/26

x = 7

m angle K=(10x+10) = 10×7 + 10 = 80 degrees

m angle L=(9x-3) = 9×7 - 3 = 60 degrees

m angle M=(7x-9) = 7×7 - 9 = 40 degrees.

The triangle is an acute triangle because each angle is lesser than 90 degrees

The triangle is scalene triangle because non of the sides are equal.

8 0
3 years ago
Look at the equation below <br> a=7b <br> If b=5, what is a?
Lynna [10]

Answer:

D, 35

Step-by-step explanation:

7b, if b=5, is the same as 7(5), or 7*5, which equals 35.

8 0
3 years ago
Read 2 more answers
Need helppp pleasee I have no clue how to solve this
grigory [225]

Answer:

Solve all four

Step-by-step explanation:

8 0
3 years ago
Amb les condicions anteriors els ha faltat pressupost per a 5 bolígrafs. Com no tenenn prou per a tot l'alumnat de 1r d'ESO, han
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6 0
3 years ago
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