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3 years ago

How do I compare fractions 7/10 and5/12 using benchmark

Mathematics

1 answer:

Bogdan [553]3 years ago

6 0

Answer:

first you have to find a common denominator like 60. to do this you need to multiply the first fraction by 6 and the second fraction by 5. which will give you the fractions 42/60 and 25/60. which will show you that the first fraction is greater than the second.

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Higher Order Thinking The band

dolphi86 [110]

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3 years ago

The fish population in a local stream is decreasing at a rate of 2.5% per year. The original population was 45,000. Write an exp

Julli [10]

Answer:

y=45000(1-0.03)^x

Step-by-step explanation:

1) the exponential decay formula is

y=c(1-r)^x

where c= starting amount

r=rate of change

x=time

y=45000(1-0.03)^x

y=45000-1350x

4 0

3 years ago

Find an ordered pair x-2y=4

Vesnalui [34]

Answer:

Step by Step:
x-2y=4
+2y +2y
x=-2y+4

x-2y=4
-4 -4
x-2y-4=0
+2y +2y
x-4=2y
Divid by 2
1/2x-2= y

x=-2y+4
x=-2(1/2x-2)+4
x=-x+4+4
x=-x+8
+x +x
2x= 8
x=4

y=1/2x-2
y=1/2(4)-2
y=2-2
y=0
(4,0)

5 0

3 years ago

Read 2 more answers

Graph this on a coordinate plane f(x)=2x^2-1

rodikova [14]

Answer:

Step-by-step explanation:

7 0

3 years ago

A cube has volume 216cm find total surface area of cube

Katena32 [7]

Answer:

Answer: 216 cm2 (square centimetres $cm^{2}$ , in your question you had to put cm3, cubic centimetres, it's IMPORTANT )

Step-by-step explanation:

A perfect cube by definition has 3 equal dimensions, as an immediate rule: volume and total surface are equal, only the unit of measure changes (cubic for the volume, square for surface).

But let's calculate it anyway:

Volume = Edge * Edge * Edge = length * width * depth = $Edge^{3}$ (remember: all edges are equal in this case)

so Edge = $\sqrt[3]{Volume}$

in your example Edge = $\sqrt[3]{216}$ = 6cm

So the surface of one side is 6*6 = 36 $cm^{2}$

There are 6 sides in total, so the total surface is 6*36 = 216 $cm^{2}$

Note: I call them "edges" but in case of a cube most say just "length"

3 0

3 years ago