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4 years ago

Will give brainliest for BEST answer!

Mathematics

1 answer:

Nataliya [291]4 years ago

8 0

Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4

Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.

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Patricia, Luca and Dauda shared an amount of money such that, Patricia had twice as much

inn [45]

Answer:

GH 1533

Step-by-step explanation:

Let Dauda's share of the money=x

Patricia had twice as much as Dauda, therefore:

Patricia's share=2x

Luca had GH 600.00 more than Dauda, therefore:

Luca's Share =x+600

If Patricia had GH 2,000.00

Then: 2x=2000

x=1000

Therefore:

Dauda's Share=GH 1000
Patricia's share=GH 2000
Luca's Share =1000+600=GH 1,600

Next, we determine the average share.

$\text{Average Share=}\dfrac{1000+2000+1600}{3}\\=\dfrac{4600}{3}\\\\=$GH 1533.33\\\text{Average Share} \approx $GH 1533 (to the nearest GH)$

5 0

3 years ago

Anyone know this one?

Shalnov [3]

Answer:

B) 2(3x^2+10x+15

Step-by-step explanation:

5 0

3 years ago

Pyramid A has a volume of 60 mm cubed and pyramid B has a volume of 937.5 mm cubed. What is the ratio of their heights?

Norma-Jean [14]

We know that
volume pyramid A=[scale factor]³*volume pyramid B
so
scale factor=∛[volume pyramid A/volume pyramid B]
scale factor=∛[60/937.5]----> scale factor=0.4

<span>the ratio of their heights is equal to the scale factor
hA/hB=0.4</span>

3 0

3 years ago

4 2/3+1 3/4 give your anwser as a mixed number

Evgesh-ka [11]

Answer:

5 6/12 or 5 1/2

Step-by-step explanation:

7 0

3 years ago

The diagram shows a rectangular yard. Each small block is

valina [46]

Answer:

Step-by-step explanation:

5 0

3 years ago

Will give brainliest for *BEST* answer!

Will give brainliest for BEST answer!