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Alekssandra [29.7K]
3 years ago
13

I need help on question 12 asap!! My assignment is due in 20 minutes and I still got other problems to solve.

Mathematics
1 answer:
Lorico [155]3 years ago
4 0
$2.27:) hope this helps!!
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If y varies jointly with x and z, and y = 200 when x = 8 and z = 10, what is x when y = 165 and z = 11?
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Answer:

The answer is 2.5

The next blank is 6

8 0
3 years ago
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Xelga [282]

(2\sqrt7+3\sqrt6)(5\sqrt2+4\sqrt3)\qquad\text{use distributive property}\\\\=(2\sqrt7)(5\sqrt2)+(2\sqrt7)(4\sqrt3)+(3\sqrt6)(5\sqrt2)+(3\sqrt6)(4\sqrt3)\\\\=10\sqrt{14}+8\sqrt{21}+15\sqrt{12}+12\sqrt{18}\\\\=10\sqrt{14}+8\sqrt{21}+15\sqrt{4\cdot3}+12\sqrt{9\cdot2}\\\\=10\sqrt{14}+8\sqrt{21}+15\sqrt4\cdot\sqrt3+12\sqrt9\cdot\sqrt2\\\\=10\sqrt{14}+8\sqrt{21}+(15)(2)\sqrt3+(12)(3)\sqrt2\\\\=\boxed{10\sqrt{14}+8\sqrt{21}+30\sqrt3+36\sqrt2}

5 0
3 years ago
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Jim has received scores of 72 72 and 77 77 on his first two 100 point tests. what score must he get on his third 100 point test
Alisiya [41]
77+72=149 
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162 water bottles in 9 cases
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What is the balance of an investment after 2 years if the starting amount was 543300
PtichkaEL [24]

Answer:

Step-by-step explanation:

Since it is simple interest, you have to use the formula I = Prt.

(I is interest, P is principal (the starting amount), and r is the & rate as a decimal.

So, the interest would be

I = 543,300 (0.048) (2) = $52,156.80

The balance is the total amount.  The balance would be the starting amount plus the interest.

Balance = 543,300 + 52,156.80 = $595,456.80

8 0
3 years ago
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