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labwork [276]
3 years ago
7

{y=2x+14 {−4x−y=4 What can I substitute "y" for in both equations?

Mathematics
1 answer:
trapecia [35]3 years ago
8 0

y=2x+14
−4x−y=4 so y = -4x -4

so

2x + 14 = -4x - 4

2x + 4x = -4 - 14

6x = -18

x = -3


y = 2x + 14

y = 2(-3) + 14

y = -6 + 14

y = 8

answer x = -3 and y =8

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If the average mass of a peacock is 4.95 kilograms, what is the average mass of a peacock In grams?
anyanavicka [17]

Answer:

4950g

Step-by-step explanation:

firstly remember the formula for converting from kg to g

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1 kg = 1000g

therefore to convert 4.95 kg to g

is 4.95 * 1000

=<u> 4950g</u>

6 0
3 years ago
What is the value of x?<br> a) 18°<br> b) 36°<br> c) 43°<br> d) 86°
dmitriy555 [2]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Divide $8 in the ratio 2:3​
miss Akunina [59]

Answer:

<h2><u><em>3.2$ and 4.8$</em></u></h2>

Step-by-step explanation:

divide $8 in the ratio 2:3​

8 : (2 + 3) = 1.6 (unity)

1.6 * 2 = 3.2 (ratio2)

1.6 * 3 = 4.8 (ratio 3)

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3.2 + 4.8 = 8

the answer is good

6 0
2 years ago
If onelb of shrimp is 1 5/8 and it costs 16.99 how much do you need to get 5 lb of shrimp
lyudmila [28]

Answer:

If one is 1 5/8 and its cost is 16.99 and you need 5lb.

Step-by-step explanation:Than first you will take the 16.99 x 5 =84.95 dollars. Take that 1 5/8 x 5 =  8  1/8

So it would take 8 1/8 and 84.95$


7 0
2 years ago
What measure of center best represents the data set? Data Set {27, 29, 26, 28, 25} A; mean only B; medium only. C; mode only D;
Alenkinab [10]
Both the median and mean=27 so median or mean would work.
8 0
2 years ago
Read 2 more answers
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