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Genrish500 [490]
3 years ago
15

The distance of planet Mercury from the Sun is approximately 5.8 ⋅ 107 kilometers, and the distance of Earth from the Sun is 1.5

⋅ 108 kilometers. About how many more kilometers is the distance of Earth from the Sun than the distance of Mercury from the Sun?
Mathematics
1 answer:
Savatey [412]3 years ago
6 0
You can search it up on the internet and it would be 4.3
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olivia has $180 to buy presents for her 3 sisters and 2 nephews. She wants to spend $15 more on each sister than she spends on e
koban [17]
So
if x is the number she spent on each sister and y is the number she spent on each nephew then
180=3x+2y

she wants to spend 15 dollars more on sisters than nephews
so
x=15+y
solve

we have
180=3x+2y and
x=15+y
subsitute 15+y for x

180=3(15+y)+2y
180=45+3y+2y
180=45+5y
minus 45 both sides
135=5y
divide both sides by 5
27=y

solve for x
x=15+y
x=15+27
x=42

she spent $42 on each sister
6 0
3 years ago
What is the solution to the system of equation y=2/3x+3 x=-2
Leya [2.2K]

Answer

Is x equal to negative 2?

Step-by-step explanation:

7 0
3 years ago
A runner compared how long it took him to run 200 meters to the record time held by a friend. In his first heat, his time was 2.
Rasek [7]

Answer: it took him 0.075 seconds lesser

Step-by-step explanation:

In his first heat, his time was 2.45 seconds greater than his friend's record time. In his second heat, his time was 2 3/8 seconds greater than his friend's record time. Converting 2 3/8 seconds to decimal, it becomes 2.375 seconds

Therefore, he was fastest in the second heat.

The difference between the time he used to run in the second heat than in the first heat is

2.45 - 2.375 = 0.075 seconds

4 0
3 years ago
What is a counterexample for "subtraction of whole numbers is commutative" ??
devlian [24]
The commutatice property for addition says a+b=b+a
If it was for subtraction, then it would be a-b=b-a
Take a=7 and b=5
7-5 is not equal to 5-7
2 is not equal to -2
So subtraction is not commutative for whole numbers.

Hope this helps :)
6 0
3 years ago
HELP PLEASEEEEEEEE TYY
emmasim [6.3K]

Answer:

1. -3

2. 5

Step-by-step explanation:

Hope this helped

Also Toga is my favorite character

4 0
3 years ago
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