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mafiozo [28]
3 years ago
12

Write an equation in slope-intercept form for the line with the slope -1/5 and y-intercept 9

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0

Answer:

y=-\frac{1}{5}x+9

Step-by-step explanation:

y=mx+b

m = slope

b = y-intercept

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True or false to halve a number you divide it by four
Sphinxa [80]
False; halving is dividing a number by two, not four.

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3 years ago
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how many pounds of candy worth $12 per pound should be mixed with candy costing $19 per pound to produce a 70 pound mixture that
sweet-ann [11.9K]

Answer:

40 pounds

Step-by-step explanation:

Given: Cost of a candy (c_1)= \$ 12 per pound

           Cost of candy (c_2) = \$ 19\ per\ pound

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           Selling price of mixture = \$ 15 \ per\ pound

Let´s x be the amount of c_1 to be mixed in the mixture.

∴ Cost of c_1 in the mixture = 12x

Next, Cost of c_2 in the mixture = (70 - x)\times 19

And we know the cost of final mixture = 70 \times 15 = 1050

Now, putting all the value in the equation

⇒ 12x + 19 \times (70 - x) = 1050

⇒ 1330 - 7x = 1050

⇒ -7x = -280

∴ x = 40\ pound

∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.

6 0
3 years ago
How do I solve it. I don't understand where I should start the problem I have the formulas
anzhelika [568]
Fist you have to find the volume which is 24 x 18 x 5= 2160 feet. 
Then the dump truck can only take 8 cubic yards so then you have to make the 2160 feet into yards. 
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so now there are 720 yards and since the dump truck can only take 8 yards a trip then it would take 90 trips/dumps to empty out the area for the pool.
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Hope this helps
5 0
3 years ago
. Kelly works two jobs. She usually works at a retail store for 7 hours
stira [4]

Answer:

so 7x12=84  5x20=100  100+84=184 a day

Step-by-step explanation:

3 0
3 years ago
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We know that

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therefore
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5 0
4 years ago
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