3 years ago

Judy left 4/5 of stew for Dan.Dan ate 2/5 of what she left

Mathematics

1 answer:

Darya [45]3 years ago

7 0

Subtract 4/5 by 2/5,

4/5-2/5=2/5

answer= 2/5
hope this helps.......<span />

You might be interested in

Write the fraction or mixed number as a decimal. Use bar notation if the decimal is a repeating decimal: 4 1/2

enyata [817]

4.5 because 1/2 equals .5 and 4 equals for

4 0

3 years ago

The circumstance of a circle is 16 ft<br><br> The radius is_____ ft

kari74 [83]

Answer:

8ft

Step-by-step explanation:

Circumference of a circle equation; πd or2πr

16π = 2πr you can then divide both sides by π

16 = 2r then you can divide both sides by 2

8 = r

5 0

3 years ago

Pls help me

gizmo_the_mogwai [7]

Answer:

yes yes

Step-by-step explanation:

not 100% but it should be right

3 0

3 years ago

Marsha has some math exercises to do for homework. She did one half during study period and two thirds of those remaining while

Paha777 [63]

Answer: She has 1 5/6 exercises for homework.

Step-by-step explanation:

1/2 + 2/3 = 1 1/6

2 * 3 = 6 3 * 2 = 6

1 * 3 = 3 2 * 2 = 4

4 + 3/ 3 + 3

7/6 = 1 1/6

So, she finished 1 1/6 of her problems.

3 - 1 1/6 = 1 5/6

3 - 1 = 2

2 - 1/6 = 1 5/6

8 0

3 years ago

Read 2 more answers

If a=i+7j+k and b=i+11j+k, find a unit vector with positive first coordinate orthogonal to both a and

Scilla [17]

Take the cross product, then normalize the result.

$\mathbf a\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&7&1\\1&11&1\end{vmatrix}=-4\,\mathbf i+4\,\mathbf k$

This has norm

$\|\mathbf a\times\mathbf b\|=\sqrt{(-4)^2+4^2}=4\sqrt2$

and so a unit vector orthogonal to both given vectors is

$\dfrac{\mathbf a\times\mathbf b}{\|\mathbf a\times\mathbf b\|}=-\dfrac1{\sqrt2}\,\mathbf i+\dfrac1{\sqrt2}\,\mathbf k$

An equally correct answer would be the negative of this vector, since $\mathbf b\times\mathbf a=-\mathbf a\times\mathbf b$ .

5 0

3 years ago