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mixer [17]
3 years ago
9

Please help!! (please don’t reply if you’re just going to say “ don’t know “ etc please and thank you)

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0

Answer:

a = -1 , b = 4 , c = 3 , d = 1

Step-by-step explanation:

The general rules of exponent:

1) \ a^m * a^n = a^{m+n}\\2) \ a^m / a^n = a^{m-n}\\3) (-1)^m = 1 \ (if \ m \ is \ +) and \ = \ -1 \ (if \ m \ is \ -)

===================================================

Given:

(-xy)^3 (xz) =ax^by^cz^d

The right hand side = (-xy)³ (xz) = (-1)³ x³ y³ x z = (-1) x⁴ y³ z

Comparing the right hand side with the left hand side

∴ a = -1

∴ b = 4

∴ c = 3

∴ d = 1

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OLga [1]

Answer:

3.73 hours

Explanation:

In 1 hour, Lisa does 1/7th of the order while Bill does 1/8th of the order in an hour. To find out how long it will take them to fill the order, we have to:

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Add the rate of both Lisa and Bill together

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Step 2:

Since both denominators of the fractions are different, you have to find the least common multiple of 7 and 8

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Step 3:

Then, you have to multiply the numerator of 1/7 with 8 and the numerator of 1/8 with 7.

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The fractions would now have equal denominators:

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Step 4:

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Step 5:

15/56 is not the final answer as it is the RATE of them working together. To find how long it will take them total to complete the order, you must divide 56 with 15.

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3 years ago
for a field trip, a bus company charges a flat fee plus an additional fee per student. For 40 students, the total cost is $250.0
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Step-by-step explanation:

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