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hram777 [196]
3 years ago
14

Evaluate 2xy when x = -1/4 and y = 3

Mathematics
1 answer:
Tcecarenko [31]3 years ago
6 0

Answer:

-1.5

Step-by-step explanation:

2(-1/4)(3)

=-1.5

You replace x with -1/4 and y with 3 inside of parenthesis

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Using row 4: 

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b = -3y </span>

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8 0
3 years ago
HELLPPP <br> I need help asappp
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Answer:

(8,5)

Step-by-step explanation:

x=8

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3 0
2 years ago
Graph the line, two points to graph Y=4/3x-y
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4 0
3 years ago
Pineapples cost $2.50 each and mangos cost $1.50 each. Tim purchased 15 pieces of fruit for $29.50. How many pineapples and how
kotykmax [81]
We can create equations to solve this.

2.50p + 1.50m = 29.50
p + m = 15

Solve for a variable in the 2nd equation and use the substitution method to solve.

p + m = 15

Subtract p to both sides:

m = -p + 15

Plug in -p + 15 for m in the first equation.

2.50p + 1.50(-p + 15) = 29.50

Distribute:

2.50p - 1.50p + 22.50 = 29.50

Combine like terms:

p + 22.50 = 29.50

Subtract 22.50 to both sides:

p = 7

Now plug this into any of the two equations and solve for the other variable.

p + m = 15

7 + m = 15

Subtract 7 to both sides:

m = 8

So he purchased 7 pineapples and 8 mangos.
4 0
3 years ago
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If the sum of their lengths is 5,520 miles then River D is 2360 and River C is 3160
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