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____ [38]
2 years ago
5

For each ordered pair, determine whether it is a solution to 4x+5y=-13

Mathematics
2 answers:
Xelga [282]2 years ago
7 0

Answer:

Step-by-step explanation:

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iren2701 [21]2 years ago
6 0

(8,-9) = 4\cdot \:8+5\left(-9\right)=-13\quad :\quad \mathrm{True}

(-2,-1) = 4\left(-2\right)+5\left(-1\right)=-13\quad :\quad \mathrm{True}

(6,3) = 4\cdot \:6+5\cdot \:3=-13\quad :\quad \mathrm{False}

(-7,4) = 4\left(-7\right)+5\cdot \:4=-13\quad :\quad \mathrm{False}

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In this equation, y = 3x+5, the coefficient of x is 3, so that means that the slope of this equation is 3.

Answer is:

3 is the slope

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At what rate of interest will the sum of Rs . 5000 give an interest of Rs . 1450 in 1year ?​
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2 years ago
A package of 3 pairs of insulate gloves costs $22.77. What is the unit price of the pairs of gloves
ArbitrLikvidat [17]

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$7.59

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6 0
3 years ago
Read 2 more answers
Mike earns $6.50 per hour plus 4% of his sales enter an equation for mikes total earnings, e, when he works x hours and has a to
Cerrena [4.2K]
First identify what each variable means. since X is the amount of hours he works, and he makes $6.50 an hour, you know you need to multiply those two numbers together creating the 6.50x. You also know Y is his total sales, and he earns 4% of Y. To find 4% of Y you need to turn the percent into a decimal, and to do this you move the decimal two spaces to the left. Since 4 is a whole number, the decimal is after the 4 so you get .04 as your decimal. Then youd multiply .04 by Y getting .04y. Lastly you add 6.50x + .04y to get E, mikes total earnings. So your final equation is

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Hope this all makes sense 

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3 years ago
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