Start by moving all terms to left side of equation 4x^2 - 19x - 30 = 0
Multiply 4 x -30 = -120
Now find two factors of 120 that subtract to give 19... 1 x 120, 2 x 60, 3 x 40, 4 x 30, 5 x 24 ✅
[if it had been +120 we would add the factors looking for 19 which in this case don’t exist]
To get -19 we will need 5 + -24
24 is a multiple of 4 so we can use 4 x -6 and 1 x 5
Giving a factored equation of (4x + 5)(x - 6) = 0 [you should check this by expanding to remove the brackets]
One of the brackets must = zero so the solutions are x = -5/4 or x = 6
Some people look at factors of 4 and -30 and then pair then up to find a sum of -19 but this can take longer to finish.
Answer:
well im in 7th sorry i cant help
Step-by-step explanation:
Distribute.
5x+10 = 3x+24
Subtract 3x from both sides
2x+10=24
Subtract 10 from both sides
2x=14
Divide by 2
x=7
Answer:$26.16
Step-by-step explanation:
The School spends $654.36 and gives 34 students and 4 teachers.
The School spends $303.96 on lunch for the 34 students.
The School spends on a pass for each student,
=
= 17.22$
The School spends on a lunch for each student,
= 8.94$
Therefore, total money spent on a pass and lunch for each student
= 17.22+8.94
= $ 26.16
Hope this helps!
Sorry if I explained and made it confusing.
You can copy and paste the math problem and search it up on brainly.
They are a lot of good answers and explanations.
