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Ulleksa [173]
3 years ago
7

3x+2y=4 8x+5y=9Please solve using Cross multiplication method.​

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0

Hello, Please refer the photo attachment for your question's answer. The final answer is :-

<u>x= -2, y= 5</u>

Hope it helps you...

Answered by Benjemin

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Trey is putting up a fence around a 750 foot by 540 foot lot. How many feet of fence dose he need?
anygoal [31]

Given:

The length of the lot l= 750ft

The width of the plot w= 540 ft

Required:

Find the required fence.

Explanation:

The perimeter of the rectangle is given by the formula.

P=2(length+width)

Thus the required fence for the lot

\begin{gathered} =2(750+540) \\ =2(1290) \\ =2580\text{ ft} \end{gathered}

Final answer:

The required fence is 2580 ft.

6 0
1 year ago
Jaina and Tomas compare their compound interest accounts to see how much they will have in the accounts after three years. They
stellarik [79]

Formula for compound interest is

Interest = Amount - Principal

Interest = P(1+r)^{t} - P

Where r = rate in percent

t = time in years

For Jaina,

P = $300

r= 7%

t = 3 yrs

So, Interest = 300(1+0.07)^{3} - 300

For Tomas

P = $400

r= 4%

t = 3 yrs

So, Interest = 400(1+0.04)^{3} - 400

So pair of equations for Jaina and Tomas are

Interest = 300(1+0.07)^{3} - 300

Interest = 400(1+0.04)^{3} - 400

5 0
3 years ago
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A jet files at an altitude of 52,800 feet. what is the height of the hey on miles
Triss [41]
There are 5,280 feet in a mile. so 52,800 feet is 10 miles.
4 0
3 years ago
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The temperature outside dropped 13 degrees in 7 hours.The final temperature was -2 degrees.What was the starting temperature
sp2606 [1]

Answer:

11 degrees

Step-by-step explanation:

-2+13=11

7 0
2 years ago
Please help me I need help right away.
ra1l [238]

Answer:

3 7/16

Step-by-step explanation:

8 0
3 years ago
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