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Katen [24]
3 years ago
10

3. It took Ellie 4 hours to paddle her canoe 10 km upstream. After a

Mathematics
1 answer:
Gnoma [55]3 years ago
4 0

Answer: A) 2.5 km/ hour

You divide 10/4 and get 2.5, so 2.5km an hour.

B) 6.25 km/ hour

You have 2.5km/ hour plus 10km/ hour OVER 2. This would equal 12.5 km over 2

You then get 6.25 from doing 12.5/2

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tankabanditka [31]

Answer:

store C is the best with .122 per ounce the others are .129 and .135

6 0
3 years ago
A bottle contains 15 marbles: 9 are white and 6 are green. What is the
sineoko [7]

Answer:    3/5

Step-by-step explanation:

Fist find  out how many whites are there and divide it by the total to find the probability.

9/15   simplify it to  3/5

4 0
3 years ago
Find 3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
IceJOKER [234]
3x²-y³ - y³ - z        if x = 3, y = -2, z = -5

Simply plug in all the values :)

3(3²) - (-2³) - (-2³) - (-5)

Simplify.

3(9) + 2³ + 2³ + 5

Simplify.

27 + 8 + 8 + 5

Simplify.

35 + 13

Simplify.

48

~Hope I helped!~
4 0
4 years ago
How many variable terms are in the expression 3x to the third power Y plus 5X to the second power plus Y +9
andrew-mc [135]

Well, variables are stuff like x and y because they can represent a number. They are variable in an equation. so if you have (3x^3)+(5X^2)+Y+9 then your variables are x X and Y (im assuming the capital X is there and not a typo) if that was a typo and meant to be lowercase, then its just a 2 variable with the x and y

8 0
3 years ago
Amira pulls a 3 pound wagon 4 feet. How much work has she done?
Alex787 [66]

Answer:

12 ft-lbs is your answer

8 0
3 years ago
Read 2 more answers
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