3 years ago

What is the area surface?

Mathematics

1 answer:

Rus_ich [418]3 years ago

6 0

Answer:

The total area of the surface of a three-dimensional object.

Step-by-step explanation:

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A test has 19 questions worth a total 100 points. There are ten-point questions and four-point questions. How many questions of

kramer

X + y = 19

10x + 4y = 100

This is a systems of equations.

Isolate x from the first equation:
x = 19 - y

Now, plug it into the second:

10(19 - y) + 4y = 100
190 - 10y + 4y = 100
-6y + 190 = 100
-6y = -90
y = 15

Plug y in and solve for x:
10x + 4(15) = 100
10x + 60 = 100
10x = 40
x = 4

There are four 10-point questions and fifteen 4-point questions.

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What property does the hour and minute hand of a clock at 3 o’clock show?

VladimirAG [237]

Answer:

Hey I think it is C. Symmetry but im no all the way sure