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dem82 [27]
3 years ago
13

HELP ASAP-2x+5y=-15 5x+2y=-6 How would you solve this system using elimination?

Mathematics
2 answers:
ale4655 [162]3 years ago
8 0

Answer:

2 and 3

Step-by-step explanation:

Marianna [84]3 years ago
6 0
Do the second one or the third one and then eliminate
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HELP!!!
AfilCa [17]
<span>1.
-x = 2 - 3x + 6
-x + 3x = 8
2x = 8
x = 8/2
x = 4

2.
</span><span>Step 1: 2(3x − 4) = 8 + 2x + 4
Step 2: 5x − 6 = 12 + 2x   </span>←  wrong
The correct step: <span>Step 2: 6x − 8 = 12 + 2x

3.
</span>The next step is <span>2m = 8</span>
3 0
3 years ago
Read 2 more answers
One equation in a system of equations is y= 3/4x -1. For which second equation would the system have exactly one solution? Choos
musickatia [10]

Answer:

2iiej

Step-by-step explanation:

1kejes191828wusnalao

3 0
3 years ago
When simplifying an expression using order of operations addition MUST
Rama09 [41]

Answer:

The answer is False,

Step-by-step explanation:

The answer is False because in some expressions if there are parentheses and there is a subtraction problem in the parentheses but there is an addition problem in front of the parentheses that does not exactly mean that you do the addition first, this is because the subtraction is inside the parentheses and so since the subtraction is in parentheses it is done fist.

4 0
3 years ago
A culture starts with 4000 bacteria after 5 hours it has 4800 how many bacteria after 15 hours
iogann1982 [59]

Answer:

6400

Step-by-step explanation:

so every 5 hours it gains 800 bacteria so 4800+800=5600 (hour 10)

and 5600+800=6400 (hour 15)

8 0
3 years ago
Read 2 more answers
Choose the equation you would use to find the altitude of the airplane. tan70 = 0 tan70 = sin70 =
KonstantinChe [14]
The situation is represented by a drawing with a right triangle where an airplane is at the top corner, the elevation angle (opposite to the airplane) is 70°, the height (vertical leg) is x, and the adjacent leg (horizontal leg) to the 70° angle is 800.

Then, to find the height x, which is the opposite leg to the angle,  you can use the tangent ratio, which is opposite leg divided by adjacent leg:

tan(x) = opposite leg / adjacent leg => tan(70°) = x / 800

Answer: tan(70°) = x / 800
7 0
3 years ago
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