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shepuryov [24]
2 years ago
9

Pierce works at a tutoring center on the weekends.

Mathematics
2 answers:
NeX [460]2 years ago
8 0

Answer:

504 millimeters (or 50.4 cm)

Step-by-step explanation:

   Width of key in student calculator = 14 millimeter (1.4 cm)

   Width of key in demonstration calculator = 2.8 cm

Thus, the demonstration calculator's dimensions are twice that of students' (in cm)

Also given, student calculator height as 252 millimeters (25.2 cm)

Thus demonstration calculator height will be twice of that = 50.4 cm (or 504 millimeters)

Arturiano [62]2 years ago
4 0

Answer:

I got 0.494 meter!

Step-by-step explanation:

First, set up a proportion to find the height of the demonstration calculator in centimeters.

Next, convert 49.4 centimeters to meters.

Therefore, the demonstration calculator is 0.494 meter tall.

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5 0
2 years ago
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lora16 [44]
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Now divide both sides by -0.9.
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3 years ago
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Mila [183]

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Not sure if this is right but 2.

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6 0
2 years ago
How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?
tiny-mole [99]
My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution) 
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We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
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8 0
3 years ago
Read 2 more answers
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