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2 years ago

Which ratio is larger, 6:9 or 5:6?

Mathematics

2 answers:

Anna11 [10]2 years ago

7 0

Answer:

5:6

<em>Hope this helps! </em>:)

ozzi2 years ago

5 0

Answer:

5:6 is larger

Step-by-step explanation:

6:9 = 6/9 = 2/3 = 0.6666...

5:6 = 5/6 = 0.8333...

5:6 is larger

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6 miles is approximately to 9 km.How many km Are equal to 54 miles.How many miles are equal to 12km

Ghella [55]

54 miles = 81 km

Work miles over km
6/9= 54/X
Cross multiply
6x= 486
Divide by 6
X= 81

6 miles/9 km= X miles / 12 km
9x=72
X= 8 miles

6 0

3 years ago

Find the maximum rate of change of f at the given point and the direction in which it occurs. f(x, y) = 5 sin(xy), (0, 2) maximu

Ahat [919]

Answer with Step-by-step explanation:

We are given that

$f(x,y)=5 sinxy$

Point=(x,y)=(0,2)

We have to find the maximum rate of change of f at given point.

$f_x(x,y)=5ycos(xy)$

$f_x(0,2)=5(2)cos0=10$

$f_y(x,y)=5xcosxy$

$f_y(0,2)=5(0)cos0=0$

$\Delta f(0,2)=f_x(0,2)+f_y(0,2)=10i+0j$

Maximum rate of change of f at point (0,2)= $\mid \Delta f(0,2)\mid=\sqrt{x^2+y^2}$

Where x=Coefficient of i

y=Coefficient of j

By using the formula

Maximum rate of change of f at point (0,2)= $\sqrt{(10)^2+0}=10$

Direction of maximum rate of change of f= $\Delta\har{f}=\frac{\Delta f(0,2)}{\mid\Delta f(0,2)\mid}=\frac{10i}{10}=i$

7 0

3 years ago

-5x+7y=-34<br> -5x+3y=-6

lisov135 [29]

Answer:

Step-by-step explanation:

-5x + 7y = -34 ⇒ -5x = -34 - 7y

-5x + 3y = -6

-34 - 7y + 3y = -6

-34 - 4y = -6 {add 34 to both sides}

-4y = 28 {divide both sides by (-4)}

y = - 7

-5x + 3y = -6

-5x + 3(-7) = -6

-5x - 21 = -6 {add 21 to both sides}

-5x = 15 {divide both sides by (-5)}

x = -3

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2 years ago

If a person is born every 5 seconds and a person dies every 12 seconds, then how many seconds does it take for the population to

harina [27]

Solution:

As per the problem

A person is born every 5 seconds and a person dies every 12 seconds.

Here the LCD of 5 and 12 is 60.

The number of person born in 60 seconds $=\frac{60}{5}=12\\$

The Number of person died in 12 seconds $=\frac{60}{12}=5$

Hence Population increase in 60 seconds is $=12-5=7\\$

Hence time required to increase the population by one $=\frac{60}{7} \ \ seconds\\$

5 0

2 years ago

A perfect square is a number that has an integer square root<br><br> True or false

Sati [7]

This is true.
These are perfect squares: 4, 9, 25. These are not: 7, 8, 11

8 0

3 years ago

Read 2 more answers