Find the surface area of the right rectangular prism is 15cm 9cm 20cm

Mathematics

1 answer:

butalik [34]3 years ago

6 0

Your answer to the question is 2,700cm

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During the first year Sherry worked as a lifeguard, she was paid at a rate of $12.75 per hour.

lara [203]

Answer:

Step-by-step explanation:

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3 years ago

I have to find the length of the angle indicated for the trapezoid

Stels [109]

That is not a trapezoid, it is a general quadrilateral. All 2-dimensional, 4-sided figures have an internal angle sum of 360 (triangles are 180). So if you assume angles P and Q are right, they are each equal to 90 degrees, for a total of 180.
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3 years ago

Julio bought 4 pencils and 3 erasers for $0.37 and David paid $0.33 for 3 pencils and 4 erasers. What is the cost of one pencil?

grigory [225]

cost of pencil = x = 0.07

and cost of eraser = y = 0.03

Step-by-step explanation:

let cost of pencil = x

and cost of eraser = y

So, we have equations:

$4x+3y=0.37\\3x+4y=0.33$