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Anvisha [2.4K]
3 years ago
6

If a+e = 11a²-f=15f+c=6c×a-e=13what is the value of the variables​

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

a=4

c=5

e=7

f=1

Step-by-step explanation:

the simplest method would be to start with a(2)"squared" (being '4' as this will get you closest to 15. So 16 -1 (being 'c') = 15. now plug those into the other equations and work the other numbers out.

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For
sdas [7]
5(x − 4)^2

5(x - 4)(x - 4)

5(x^2 - 8x + 16)

5x^2 - 40x + 80

Did you follow?
6 0
3 years ago
A teacher is four times as old as a student. In 28 years, the student's age will be half of the teacher's age. How old are they
swat32
Here, let the age of student be x and teacher be 4x after 28 years, the teacher is double the age of student. So the age of teacher will be 4x+28 and student will be 2(x+28)
So,
4x+28=2(x+28)
4x+28=2x+56
4x-2x=56-28
2x=28
x=14
Therefore the age of the teacher in present will be
=4x+28
=4*14+28
=84
And age of student will be:
=x+28
=14+28
=42
Hope this helps


7 0
3 years ago
Enter the inequality of the graph below.
aev [14]
The slope is (8-2)/(0-2)=-3
the y intercept is 8
the equation is y=-3x+8
the area to the left is shaded, and the line is solid, so y\leq-3x+8
4 0
3 years ago
Please help me in this question
charle [14.2K]
Number defective=4
number of non-defective=total-defective
=20-4
=16
the questions asked for 1 defective
so we choose only 1 defective from 4 defective items
4C1

and for 1 non-defective
we choose only 1 non-defective from 16 non-defective items
16C1

we choose 2 items from 20 items
so 20C2

answer:
probability= [(4C1) * (16C1)] /(20C2)
=32/95

6 0
3 years ago
Keenan has 28 CDs and 44 DVDs. What is the ratio of DVDs to CDs?
pantera1 [17]
Answer is D.
28:44 is the ratio but you have to simplify it. Divide both by 4. 28 divided by 4 = 7; 44 divided by 4 = 11
4 0
3 years ago
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