All categories

3 years ago

How many times does 12 go into 78

Mathematics

2 answers:

nirvana33 [79]3 years ago

7 0

Answer: 6.5? I think this is the answer but not sure.

andrew-mc [135]3 years ago

4 0

Answer:

Step-by-step explanation:

You might be interested in

A cell phone company produces 40 defective phones out of every 5000 phones. Another cell phone company produces 30 defective pho

ratelena [41]

Answer:

Step-by-step explanation:

Given that:

Company A:

40 defective out of every 5000

Company B :

30 out of every 6000

To obtain the highest number of defective phones both companies can produce in common :

Factors of :

40 : 2, 4, 5, 8, 10, 20, 40

30 : 2, 3, 5, 6, 10, 15, 30

Hence, highest number of defective phones both companies can produce in common is 10

6 0

3 years ago

What is the value of the expression when a=18 and b=14 ?

Ivenika [448]

Answer:

1) 1/2 (18+14) - (18-14)^2

2) 1/2 (32) - (4)^2

2) 16 - 16

3) 0

Therefore, the answer is D

Step-by-step explanation:

Hope this helps :D

5 0

3 years ago

[20points][Precal] Find the cross product of -(3/4)V and (1/2)w if v = <-2, 12, -3> and w = <-7, 4, -6>

Lana71 [14]

$\mathbf v=\langle-2,12,-3\rangle=-2\,\vec i+12\,\vec j-3\,\vec k$
$-\dfrac34\mathbf v=\dfrac32\,\vec i-9\,\vec j+\dfrac94\,\vec k$

$\mathbf w=\langle-7,4,-6\rangle=-7\,\vec i+4\,\vec j-6\,\vec k$
$\dfrac12\mathbf w=-\dfrac72\,\vec i+2\,\vec j-3\,\vec k$

$-\dfrac34\mathbf v\times\dfrac12\mathbf w=\begin{vmatrix}\vec i&\vec j&\vec k\\\frac32&-9&\frac94\\-\frac72&2&-3\end{vmatrix}$
$=\left((-9)\times(-3)-\dfrac94\times2\right)\,\vec i-\left(\dfrac32\times(-3)-\dfrac94\times\left(-\dfrac72\right)\right)\,\vec j+\left(\dfrac32\times2-(-9)\times\left(-\dfrac72\right)\right)\,\vec k$
$=\dfrac{45}2\,\vec i-\dfrac{27}8\,\vec j-\dfrac{57}2\,\vec k=\left\langle\dfrac{45}2,-\dfrac{27}8,-\dfrac{57}2\right\rangle$

6 0

3 years ago

$17.00. If the CD is 20% off, and sales tax is 8%, what is the total price of the CD, including tax?

Over [174]

Divide 17 by .2 and multiply by .8

4 0

3 years ago

How many solutions does the following system of equations have?<br> v=3x +2<br> 2v=5x+8

Alja [10]

Answer:

The answer is C, zero solutions.

Step-by-step explanation:

y = 5/2x + 2

2y = 5x + 8

Multiply 2 to the first equation.

2y = 5x + 4

Compare it with the other equation

2y = 5x + 4

2y = 5x + 8

Cancel 2y and 5x on both sides.

Remaining:

4 = 8

4 ≠ 8. Therefore, the answer is C, zero solutions.

4 0

3 years ago