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WARRIOR [948]
3 years ago
13

Help! btw, they are 2 different questions.

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

4x - 3y = 18 (1)

8x - 6y = 34 (2)

Divide equation b by 2

4x - 3y = 17

So now you have

4x - 3y = 18

4x - 3y = 17

--------------------subtract

0 - 0 = 1

0 ≠ 1

No solution

Answer is the last option

4x - 3y = 18

8x - 6y = 34

------------------------------

3x + 6y = 22 (1)

6x + 12y = 44 (2)

Divide equation 2 by 2

3x + 6y = 22 -------------same as equation 1

Subtract equation 2 from 1

0 = 0

Infinitely many solutions

Answer is the second option

3x + 6y = 22

6x + 12y = 44

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GREYUIT [131]

Answer:

<h3>The answer is </h3><h3 /><h3>1125 Kg</h3>

Step-by-step explanation:

To find the mass in kg we must first convert the density from g/cm³ to kg/m³

That's 7.5 g/cm³ = 7500kg/m³

Density = mass / volume

Volume of block = 1.5 × 0.4 × 0.25

= 0.15m³

mass = Density × volume

= 7500 × 0.15

<h3>= 1125 Kg</h3>

Hope this helps you

7 0
3 years ago
What is the best approximation of the area of a circle with a diameter of 17 meters? Use 3.14 to approximate pi. 53.4 m² 106.8 m
Arte-miy333 [17]
R = 17/2 =8.5 m
A = 3.14 x (8.5)^2
A = 3.14 x 72.25
A = 226.865

answer <span>226.9 m² (third choice)</span>

8 0
3 years ago
Can u plz help me in this plz?
Yanka [14]
There isn’t a picture what do you need help with
7 0
3 years ago
Heya ~
arsen [322]

Answer:

y = -3

Step-by-step explanation:

y = x - 7

when x = 4

y = 4 - 7

y = -3

8 0
2 years ago
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one bag of pretzels cost three dollars. five bags of pretzels cost $10.which has the lower unit price
Karo-lina-s [1.5K]
5 bags is cheaper because one bag is $3 and 5 bags for ten so to find the unit price the amount (10/ ) the amount of bags (5) so therefore 10/5= $2 which is smaller than the price of an individual bag
7 0
3 years ago
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