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Aleks04 [339]
2 years ago
12

John works two jobs. As a security guard he earns per hour. As a landscaper he earns per hour. One week John worked a total of h

ours and earned How many hours did he work at each​ job?John works two jobs. As a security guard he earns 7.50c per hour. As a landscaper he earns 12.00 per hour. One week John worked a total of 30 hours and earned 256.50 How many hours did he work at each​ job?
Mathematics
1 answer:
wariber [46]2 years ago
4 0

Answer:

john

Step-by-step explanation:

ku

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One ordered pair (a,b) satisfies the two equations ab^4 = 384 and a^2 b^5 = 4608. What is the value of a in this ordered pair?
Alekssandra [29.7K]

Answer: a = 3∛2

<u>Step-by-step explanation:</u>

ab⁴ = 384     --> a = 384/b⁴

Substitute a = 384/b⁴ into the second equation to solve for "b".

   a²b⁵ = 4608

\bigg(\dfrac{384}{b^4}\bigg)^2\cdot b^5=4608\\\\\\\dfrac{147,456b^5}{b^8}=4608\\\\\\\dfrac{147,456}{b^3}=4608\\\\\\\dfrac{147,456}{4608}=b^3\\\\\\32=b^3\\\\\\\sqrt[3]{32} =b\\\\\\2\sqrt[3]{4} =b

Substitute b = 2∛4 into the first equation to solve for "a".

ab⁴ = 384

a(2∛4)⁴ = 384

        a  = 384/(2∛4)⁴

        a = 24/4∛4

           = 6/∛4

           = 6(∛2)/2

           = 3∛2

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3 years ago
Imagine that the mean height for players in all Division I women's basketball programs is 69 inches with a standard deviation of
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The answer is A I don’t if it’s 100% right thou
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3 years ago
Six friends each use a $2-off coupon to buy themselves a movie ticket. They spend a total of $42. What is the price of one movie
SIZIF [17.4K]

Answer:

The Answer is $9

Step-by-step explanation:

What i did was multiplied 7 times 6 and that equaled 42. They all used 2 dollar off coupons. You asked what was the price of one movie ticket without the coupon, so i added $2 to 7 and got $9

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Does anyone know how to do this question?
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3 years ago
8/7 = 12/k solve for k
Serjik [45]

Answer:

k = 10.5

Step-by-step explanation:

8/7 = 12/k

Using cross products

8k = 7*12

8k = 84

Divide each side by 8

8k/8 = 84/8

k = 10.5

7 0
3 years ago
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