2 years ago

Plz help me

Mathematics

1 answer:

statuscvo [17]2 years ago

5 0

Answer: 12+4+4

Step-by-step explanation:

Because if you add those together you get 20 miles per hour

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Calculate the slope of the line that contains the points (-2, -4) and (2, 4).

liubo4ka [24]

Answer:

Slope is 2

Step-by-step explanation:

(-2, -4) and (2, 4)

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m=(y2-y1)/(x2-x1)

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3 years ago

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A rectangle has a length of (x+10) centimeters and a width of x centimeters. If the perimeter is 32 centimeters, what is the len

I am Lyosha [343]

Given:

Length of rectangle = (x+10) cm

Width of the rectangle = x cm

Perimeter = 32 cm

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The length of the rectangle.

Solution:

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$32-20=4x$

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2 years ago

I need help with this TnT

miv72 [106K]

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3 years ago

Paul needs 40 pounds of 48% silver alloy to finish a collection of jewelry. How many pounds each of 45% silver alloy and 60% sil

Salsk061 [2.6K]

<span>Equation:
silver + silver = silver
0.45x + 0.60(40-x) = 0.48*40
----------------
45x + 60*40 - 60x = 48*40

--------
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x = (4/5)40
x = 32 lbs (amt of 45% slloy needed)
40-x = 8 lbs (amt of 60% alloy needed)</span>

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2 years ago