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2 years ago

Prove that 3:8 is equivalent to 12:32.

1 answer:

7 0

3:8 can also be written as 3/8

<span>12:32 can also be written as 12/32

</span> $\frac{12}{32} = \frac{3\times 4}{8\times 4} = \frac{3}{8}$

<span>So thus 3:8 is equivalent to 12:32</span>

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-2x^2+4x-1 from 6x^2+3x-9

kirza4 [7]

Answer:

$8{x}^{2} - x - 8$

Step-by-step explanation:

We want to subtract

$- 2 {x}^{2} + 4x - 1$

from

$6 {x}^{2} + 3x - 9$

We set up the subtracttion problem to get:

$6 {x}^{2} + 3x - 9 - ( - 2 {x}^{2} + 4x - 1)$

We expand the parenthesis to get:

$6 {x}^{2} + 3x - 9 + 2 {x}^{2} - 4x + 1$

Group similar terms:

$6 {x}^{2} + 2 {x}^{2} + 3x- 4x + 1 - 9$

We simplify to get:

$8{x}^{2} - x - 8$

4 0

2 years ago

What is the coefficient of the variable in the expression 6-4x-8x+2

Daniel [21]

I think the trick is to add the two middle terms together. (And the 2 end terms).

8 - 12x

The variable is x. The coefficient is - 12.

8 is a constant.

The coefficient always goes with a variable.

3x^2 + 2x + 5

Nothing can be combined. The leading coefficient is 3 (which goes with the greatest power of the variable x^2 in this case) and the other coefficient is 2. 5 is a constant.

6 0

2 years ago

Plzz anwser ill give brainlest simplify 16- 8/15

Anton [14]

Answer:

232/15 [as an improper fraction] or 15 7/15 [as a mixed fraction]

Explanation:

16 - 8 / 15 =

(16) - (8 / 15) =

((16 × 15) / 15) - ((8) / 15) =

((240) / 15) - ((8) / 15) =

(240 - 8) / 15 =

232 / 15 =

15 7/15

7 0

1 year ago

If you buy five of the XYZ bonds with $8 commission for each how much will it cost?

Tema [17]

Answer:

B) 5065

Step-by-step explanation:

100.5 times 5 = 502.5

502.5 times 100

+ 8 times 5 (commission)

3 0

2 years ago

kinata goes for swimming lessons every 5 days while wayo goes every 6 days. if both kinata and wayo had lessons together at the

Yakvenalex [24]

Answer:
30th day
Step-by-step explanation:
5*6=30
and 6*5=30
basically we have to take Lcm of 5 and 6=30
30th day they both will be together

3 0

2 years ago