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mr_godi [17]
3 years ago
7

What should be the first step in adding these equations to eliminate y? 8x+3y=2+4×-6y=-7​

Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0
Solve by substitution : Solve for x or y in one equation and substitute it into the other equation in place of the variable that corresponds to it .

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What is the radius of a circular swimming pool with a diameter of 20 feet?
Wewaii [24]

Answer:

10

Step-by-step explanation:

the radius is half of the diameter

3 0
3 years ago
Read 2 more answers
4/5 rational or irrational​
matrenka [14]

Answer: 4/5 IS RATIONAL

Step-by-step explanation: A RATIONAL NUMBER IS A NUMBER THAT CAN BE EXPRESSED AS A FRACTION. IT IS ALREADY A FRACTION SOOOO SÍ POLLO

HOPE THIS HELPS. HAVE A NICE DAY. YOU ARE AMAZING :)

8 0
3 years ago
Find the vertex of the function if x=1<br><br> options:<br> (1,24)<br> (1,30)<br> (1,32)<br> (1,41)
Vikentia [17]

Answer:

<h2>          (1, 41)</h2>

Step-by-step explanation:

h = 1

k = p(h) = 4·1² + 24·1 + 13 = 4 + 24 + 13 = 41

8 0
3 years ago
Subtract: (4x3 + 9xy + 8y) – (3x3 + 5xy – 8y)
Nikitich [7]

(4x³ + 9xy + 8y) - (3x³ + 5xy - 8y) =

= 4x³ + 9xy + 8y - 3x³ - 5xy + 8y =

= 4x³ - 3x³ + 9xy - 5xy + 8y + 8y =

= x³ + 4xy + 16y ← the end answer

3 0
3 years ago
Read 2 more answers
It was estimated that because of people switching to Metro trains about 33000 of CNG 3300 tons of diesel and 21000 tons of petro
Simora [160]

The question is incomplete. Here is the complete question

It was estimated that because of people switching to Metro trains about 33000 of CNG 3300 tons of diesel and 21000 tons of petrol was saved by the end of year 2007 (I) find a fraction of the quantity of diesel saved to the quantity of petrol saved (ii) find the quantity of cng to the quantity of diesel saved

Answer:

(I) 11/70

(II) 1/10

Step-by-step explanation:

Metro trains contain 330,000 tons of CNG

3300 tons of diesel was saved

21000 tons of petrol was saved at the end of 2007

(I) The fraction of the quantity of diesel saved to the quantity of petrol saved can be calculated as follows

= 3300/21000

= 11/70

(II) The fraction of the quantity of CNG saved to the quantity of diesel can be calculated as follows

= 3300/33000

= 1/10

5 0
4 years ago
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