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dalvyx [7]
4 years ago
11

Jessica and Mary were able to cut the shrubs in 6 hours together. It takes Mary 10 hours to complete the same job alone. Without

help, how long would it take Jessica to complete the same job ?
Mathematics
1 answer:
AysviL [449]4 years ago
3 0

Answer:

12 hours or more

unequal strength

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What is the correct answer to this multiple choice question? Please help!
erik [133]

Answer:

\sqrt[3]{4}

Step-by-step explanation:

To solve this we need to take the square root of both sides with a certain degree.

4^6 = a^{18}

We can take the root of both sides with a degree of 18.

\sqrt[18]{4^6} = \sqrt[18]{a^{18}}  \\(4^6)^{\frac{1}{18} } = a\\a = 4^{\frac{6}{18} } = 4^{\frac{1}{3} } = \sqrt[3]{4}

It's helpful to understand that when a number has its square root taken with some degree n. The square root can be represented as just the value raised to the (1/n) power.

It's also helpful to understand that when you raise something to the power of another power, you can simply multiply the powers together. For instance (2^3)^5 = 2^15

4 0
3 years ago
7x-18 is less than or equal to 32
gavmur [86]
We have
7x - 18 \leqslant 32 \\ 7x - 18 + 18 \leqslant 32 + 18 \\ 7x \leqslant 50 \\ x \leqslant 50  \div 7 \\
we have x is less than or equal 50/7
8 0
4 years ago
Simplify fully 36/120
ahrayia [7]

Answer:

3/10

Step-by-step explanation:

4 0
3 years ago
Do the information on a bag of fertilizer 5 pounds of fertilizer are needed for every two square feet of lawn how many square fe
gregori [183]

Answer:

25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.

Step-by-step explanation:

Given:

5 pounds of fertilizer cover = 2 ft^2 of the lawn

We need to find the 25 lb bag cover.

Solution:

Now we know that;

5 pounds of fertilizer = 2  ft^2 of yard.

1 lb of fertilizer = Number of ft^2 lawn covered by 1 lb fertilizer.

Using Unitary method we get;

Number of ft^2 lawn covered by 1 lb fertilizer = \frac{2}{5}\ ft^2

Now we can say that;

1 lb of fertilizer =  \frac{2}{5}\ ft^2 of the yard

25 lb of fertilizer = Number of ft^2 lawn covered by 25 lb fertilizer.

Again by using Unitary method we get;

Number of ft^2 lawn covered by 25 lb fertilizer. = \frac{2}{5}\times 25 = 10 \ ft^2

Hence 25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.

7 0
3 years ago
Christy drove 135 miles in 2.5 hours.what was her average speed in miles per hour
klio [65]
You divide 2.5 to both the miles and hours to get 1 hour and the miles remain.
The answer is 54 miles 
7 0
3 years ago
Read 2 more answers
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