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3 years ago

The new number, 200, is 400 less than the original number. What is the approximate percent change?

Mathematics

2 answers:

wolverine [178]3 years ago

8 0

The percent change is approximately 66%

Ad libitum [116K]3 years ago

3 0

Answer:

66% is the approximate percentage change

Step-by-step explanation:

The original number is 600 and the new number is 200.

200 is a third of 600 which is approximately 66 percent.

Hence, The percent change is approximately 66% is the correct answer.

(Note): A way to remember percent of change is (old number - new number) divided by the old number

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(1.8x10^5)divided by(3x10^6) in standard form?

Softa [21]

Answer:

0.06

Step-by-step explanation:

Given data:

$1.8(10^{5})$ divided by 3× $10^{6}$

Now,

$\frac{(1.8)10^{5} }{3(10^{6}) } \\=0.6(10^{5-6} )\\=0.6(10^{-1} )\\=0.06$

Answer will be 0.06

5 0

3 years ago

Which pair are equal trig values? A) tan 45° and sin 45° Eliminate B) sin 40° and sin 50° C) sin 36° and cos 54° D) cos 65° and

ira [324]

Answer:

Step-by-step explanation:

note that sin x = cos(90 - x ) ← Cofunction identity

If x = 36 then 90 - x = 90 - 36 = 54

Hence sin 36° = cos 54° → C

3 0

3 years ago

The length of a rectangular flower bed is 2ft longer than the width. If the area is 6ft, then what are the exact length and widt

Marizza181 [45]

Answer:

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

Step-by-step explanation:

Let's assume width of rectangle is w ft

The length of a rectangular flower bed is 2ft longer than the width

so,

length =w+2

$L=w+2$

now, we can find area

$A=L\times W$

now, we can plug it

$A=(w+2)\times w$

$A=w^2+2w$

we are given area =6

so, we can set it equal

and then we can solve for w

$w^2+2w=6$

$w^2+2w-6=0$

we can use quadratic formula

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

now, we can compare and find a,b and c

a=1 , b=2 , c=-6

$w=\frac{-2\pm \sqrt{2^2-4\cdot \:1\left(-6\right)}}{2\cdot \:1}$

$w=-1+\sqrt{7},\:w=-1-\sqrt{7}$

we know that dimension can never be negative

so, we will only consider positive value

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

7 0

3 years ago

IMMEDIATELY I NEED THIS DONE IN FIVE MINUTES Match the values with the equivalent percentages.

makkiz [27]

Answer:

35% of 150=52.5

20% of 50=10

10% of 20=2

45% of 200=90

6 0

3 years ago

A basketball player averages 13.5 points per game. Use this rate to find the value of x, the number of points scored in 7 games.

xxTIMURxx [149]

Knowing that a ratio applies to the same situation in just a larger/smaller scale;

(13.5)(7)=x (where x is the predicted number of scores)

94.5=x

Therefore, the player should score 94.5 points in 7 games.

Hope I helped :)

4 0

3 years ago

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