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BARSIC [14]
3 years ago
12

LuAnn is playing a math game. She chooses three cards. The value of each of her cards is shown. First card: -12, Second card: 3,

Thirds card: -5. What is the sum of the values of LuAnn's three cards?
Mathematics
1 answer:
sertanlavr [38]3 years ago
8 0

Answer: -14

Step-by-step explanation:

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The average height of 8 adults is 1.8 m. What is the sum of their heights? How do I work this out without a calculator?
Katen [24]
Well, the average of a sum of number is found by adding each given number and dividing that number by the amount of given numbers. 
Example: 5+4+3+8=20 
                and 20/4 = 5, the average of the numbers
Multiply 1.8 by 8.0 using this format:

1.8
x8.0
--------


Hope this helped
5 0
3 years ago
Please help i am giving away brainliest
emmasim [6.3K]

Answer:

6,480in.3

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
What is 2x - 4 if 12=x
Marina CMI [18]
2(12)-4
=24-4
=20
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6 0
3 years ago
Write a real-world problem to represent 7x-18 < 32
Ilia_Sergeevich [38]
There are seven students and have (x) amount of Pokemon cards, but a bully comes and takes 18. It is less then 32. ( I think its a less then sign)
8 0
3 years ago
A farmer grows crops with an average height of 5 feet. He breeds his tallest plants, which are each 8 feet tall. They produce of
irinina [24]

Answer:

Qa: The heritability for tallness in these crops is 0.08, while Qb: Genes slightly influence the trait for height.

Step-by-step explanation:

Qa: The average height of regular crops grown by the farmer was 5 feet. The amazingly tall breeds have a 3feet increment than the usual crops. This progeny of the farmer's choice breeds has a 0.25 feet increment in height than what is expected in other normal breeds. Therefore, the heritability of the tall trait by these progeny was 0.25/3, which is 0.08333.....Approximately 0.08.

Qb: This low heritability index showed that the trait for tallness is slightly influenced by gene, because if otherwise, the index would have been a far way higher than this. However, we cannot conclude that it is the environment that determines the tall phenotype to be expected in the crops; this renders other options wrong.

7 0
3 years ago
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