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8_murik_8 [283]
3 years ago
15

- 4x + 8y = 20 ----4x + 2y = -30

Mathematics
1 answer:
snow_tiger [21]3 years ago
5 0

Answer:

40

Step-by-step explanation:

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Which equations support the fact that rational numbers are closed under addition?
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3 0
3 years ago
Can you solve this problem plz?
Andre45 [30]

Answer:

First, we are going to find the sum of their age. To do that we are going to add the age of Eli, the age Freda, and the age of Geoff:


The combined age of Eli, Freda, and Geoff is 40, so the denominator of each ratio will be 40.


Next, we are going to multiply the ratio between the age of the person and their combined age by £800:

For Eli: 

For Freda: 

For Geoff: 


We can conclude that Eli will get £180, Freda will get £260, and Geoff will get £360.

Step-by-step explanation:


6 0
3 years ago
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Help with this question
Marat540 [252]
Lxwxh using your numbers its 3x3x3 or 3³ so your answer is 27
4 0
3 years ago
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You are told that having a college education increases a person's earnings by 30% over their lifetime. A non-college graduate ea
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Earnings for 40 years without college are $30,000*40=$1,200,000
With college education you will earn $1,200,000*0.3=$360,000 more.
Answer: d)
6 0
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