3 years ago

What is the standard unit of measurement in the metric system

1 answer:

5 0

Which measurement?
To measure distance, the base unit is meter
To measure mass, the base unit is gram
To measure volume, the base unit is liter

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If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s

ELEN [110]

Let
x-----------> <span>uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x</span>²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
x=2 in

the answer is
2 inches

4 0

3 years ago

A map that was created using a scale of 1 inch : 3 miles shows a lake with an area of 18 square inches. what is the actual area

Dmitrij [34]

Answer: The area of the lake is actually 182 square miles 1 inch represents one side 3 miles long the other side is also 3 miles. 3×3=9 square miles. 1 Square Inch on the map represents 9 Square Miles.

Step-by-step explanation: If the area on the map is 18 square inches, and each square inch represents 9 square miles, multiply 18×9=182 to get the area of that big lake.

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3 years ago

Read 2 more answers

Which inequalities are true?

valentina_108 [34]

B is correct as -4 is smaller than 7
d is correct as -30 is smaller than -18
e is correct as -3 is bigger than -8

6 0

3 years ago

What is 20% of $45.00?

Gnoma [55]

It is 9$ :)

45*0,2=9

YW

4 0