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Elena L [17]
3 years ago
6

6x+5y=7 2x-4y=-26 can you solve in steps

Mathematics
2 answers:
MAVERICK [17]3 years ago
5 0
<em>Look At The Picture.







</em>
Good Luck!<em>
</em>

morpeh [17]3 years ago
3 0
6x+5y=7 \\&#10;2x-4y=-26 \ \ \ |\hbox{multiply by (-3)} \\ \\&#10;6x+5y=7 \\&#10;\underline{-6x+12y=78} \ \ \ |\hbox{add the sides} \\&#10;5y+12y=7+78 \\&#10;17y=85 \ \ \ |\hbox{divide by 17} \\&#10;y=5 \\ \\&#10;\hbox{substitute 5 for y:} \\&#10;6x+5y=7 \\&#10;6x+5 \times 5=7 \\&#10;6x+25=7 \ \ \ |\hbox{subtract 25} \\&#10;6x=-18 \ \ \ |\hbox{divide by 6} \\&#10;x=-3 \\ \\&#10;\boxed{(x,y)=(-3,5)}
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A software company keeps a ratio of 2.5 testers to every 10 software developers. If the company hires 20 developer in one year,
pochemuha

Answer:

They will need to hire 5 testers.

Step-by-step explanation:

This question can be solved using a simple rule of three.

For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?

10 developers - 2.5 testers

20 developers - x testes

10x = 20*2.5

10x = 50

x = \frac{50}{10}

x = 5

They will need to hire 5 testers.

6 0
3 years ago
Read 2 more answers
mary bought 12 puonds of blueberries to make 5 pies. She divided the blueberries evenly. How many pounds of blueberries were in
AlexFokin [52]

Answer:

2.4 pounds of blueberries for each pie

Step-by-step explanation:

Mary has 12 pounds of blueberries to make 5 pies.

Divide 12 by 5 to see how much pounds of blueberries each pie will have.

There are 2.4 pounds of blueberries for each pie.

6 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Alborosie

Answer:  tan(V)=2.92

Step-by-step explanation:

For this exercise you need to remember the following Trigonometric Identity:

tan\alpha =\frac{opposite}{adjacent}

You must observe the figure given in the exercise.

You can notice that the given triangle UVW is a Right triangle (because it has an angle that measures 90 degrees).

So, you can identify in the figure that:

\alpha =V\\\\opposite=UW=35\\\\adjacent=VW=12

Knowing these values, you can substitute them into  tan\alpha =\frac{opposite}{adjacent}:

tan(V)=\frac{35}{12}

Now you must evaluate:

tan(V)=2.916

Finally, rounding to the nearest hundreth, you get:

tan(V)=2.92

7 0
4 years ago
when using substitution to solve a system of education, how can you tell when a system has no solution
OLEGan [10]

Answer:

Recognize systems of equations that have no solution or an infinite number of solutions



4 0
4 years ago
Find the square root of 876 and write your answer in index form
cestrela7 [59]

Answer:

2(219)^1/2.

Step-by-step explanation:

876 = 2*2*3*73

√876 = 2*√219

= 2(219)^1/2.

7 0
3 years ago
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