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3 years ago

Today you jogged 1/3 of a mile

Mathematics

1 answer:

MakcuM [25]3 years ago

5 0

You jogged 2/3 of a mile. 1/3 plus 1/3 equals 2/3.

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PLEASE HELP!!!

Inessa [10]

Answer:

Step-by-step explanation:

3 0

2 years ago

Solve the proportion below. 7/x=19

alexgriva [62]

Answer:

The value of x is approximately 0.3684.

Step-by-step explanation:

Given:

$\frac{7}x}=19$

We need to solve the proportion.

Solution:

Now we can see that;

In given equation one number is fraction and other number is whole number.

Now To make whole number into fraction we will divide by 1.

hence the whole number will be equal to;

$19=\frac{19}{1}$

Now the new equation will be;

$\frac{7}{x}=\frac{19}{1}$

Now by cross multiplication we get;

$7\times1=19\times x\\\\7=19x$

Now dividing both side by 19 we get;

$\frac{7}{19}=\frac{19x}{19}\\\\x\approx0.3684$

Hence the value of x is approximately 0.3684.

6 0

3 years ago

Sally has 6 boxes of colored pencils only three of the boxes contain 12 colored pencils each .the remaining boxes each contain 2

Sonja [21]

3 times 12 then 3 times 20
3 x 12 = 36
3 x 20 = 60
60 + 36 = 96
96 ÷ 8

3 0

2 years ago

Solve the inequality.

Murljashka [212]

R/6<= 3
Multiply 6 on both sides
Final Answer: r<= 18

5 0

3 years ago

Read 2 more answers

A hypothetical square grows so that the length of it's diagonals are increasing at a rate of 8 m/min. How fast is the area of th

guapka [62]

Answer:

32 $m^{2}/min$

Step-by-step explanation:

We let the length of the square be l, the diagonal be z and the area be A.

Then by Pythagoras theorem;

$l^{2}+l^{2}=z^{2}\\2l^{2}=z^{2}$

The are of a square of length l is given as;

$A=l^{2}$

Combining these two equations yields;

$z^{2}=2A$

$A=\frac{z^{2} }{2}$

Next, we have been given;

$\frac{dz}{dt}=8$

We are required to find;

$\frac{dA}{dt}$ when z = 4

By chain rule;

$\frac{dA}{dt}=\frac{dA}{dz}*\frac{dz}{dt}$

Differentiating $A=\frac{z^{2} }{2}$ with respect to z yields;

$\frac{dA}{dz}=z$

Therefore,

$\frac{dA}{dt}=\frac{dA}{dz}*\frac{dz}{dt}$ = 8z

When z is 4m the area of the square will be increasing at a rate of;

8m/min * 4m = 32 $m^{2}/min$

5 0

3 years ago