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solniwko [45]
3 years ago
8

Need help with my math!

Mathematics
1 answer:
kykrilka [37]3 years ago
7 0
12x+7+6x-7=90
12x+6x=90
18x=90
x=5

6(5)-7=
30-7=23

Q=23
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Please help i need to find the constant of proportionality
abruzzese [7]

Answer:

4

Step-by-step explanation:

y = 4*x

y = 4*1.5 = 6

y = 4*2.25 = 9

y = 4* 3.25 = 13

3 0
2 years ago
Identify the 33rd term of the arithmetic sequence 9, 7 and one half, 6...
marta [7]

Answer:

  -39

Step-by-step explanation:

The general term of an arithmetic sequence is ...

  an = a1 +d(n -1)

This sequence has first term a1=9 and common difference d=(7.5-9) = -1.5. Then the 33rd term is ...

  a33 = 9 -1.5(33 -1) = 9 -48 = -39

The 33rd term is -39.

5 0
3 years ago
The length of a rectangle is given by the function l(x)=2x+1, and the width of the rectangle is given by the function w(x)=x+4.
Harlamova29_29 [7]

Answer:

a(x)=2x^2+9x+4

Step-by-step explanation:

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Width: x + 4

A = l * w

A = (2x + 1)(x + 4)

2x^2 + 8x + x + 4

We can add like terms now:

2x^2 + 9x + 4

Our area is 2x^2 + 9x + 4

Our answer would be a(x)=2x^2+9x+4

7 0
3 years ago
Read 2 more answers
5.
cricket20 [7]
The price was reduced by 25%
8 0
3 years ago
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Im throwing tons of points for these questions so please help
Galina-37 [17]

10. x = 4,-4

11.  x = 2,-2

12. Length = 12 yards, Weight = 6 yards

13.  x = -5,2


3 0
3 years ago
Read 2 more answers
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