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3 years ago

Anyone need help with a subject mark me brainlist

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

5 0

Answer:

people cant mark you brainlest but you can mark people who answer your questions brainliest

Step-by-step explanation:

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How many pounds of chocolate worth $1.5 a pound must be mixed with 10 pounds of chocolate worth 60 cents a pound to produce a mi

Mashcka [7]

Answer:

$8\ pounds$

Step-by-step explanation:

Let

x-----> amount of pounds of chocolate worth $1.5

we know that

$1.5x+0.60(10)=1(x+10)$

$1.5x+6=x+10$

$1.5x-x=10-6$

$0.5x=4$

$x=8\ pounds$

8 0

3 years ago

Read 2 more answers

Matrix question help needed

kramer

The required matrix is:

$\left[\begin{array}{ccc}-25&17&0\\8&-1&3\\\end{array}\right]$

Step-by-step explanation:

We need to apply elementary row operation -2R₂+3R₁ tothe matrix:

$A=\left[\begin{array}{ccc}-3&5&2\\8&-1&3\\\end{array}\right]$

Multiplying Row 2 with -2 and Row1 with 3 and adding,

-9 15 6

-16 2 -6

----------

-25 17 0

After applying this operation, Row 1 will be changed while Row 2 will remain same because we get -2R₂+3R₁ -> R₁

The required matrix is:

$\left[\begin{array}{ccc}-25&17&0\\8&-1&3\\\end{array}\right]$

Keywords: Matrices, elementary row operation

Learn more about matrices at:

#learnwithBrainly

6 0

3 years ago

Jackson drove 1,080 miles<br> in 20 hours. What was his<br> speed in miles per hour?

Darina [25.2K]

Answer:

54mph

Step-by-step explanation:

To find the speed in "miles per hour" or miles/hour, divide the number of miles by number of hours.

1080 miles/20 hours

= 54miles/hour

His speed is 54 miles per hour.

4 0

3 years ago

Reduce each fraction as much as possible<br> Ex) 10/40

GaryK [48]

1/4. You would divide both numbers but they’re largest common denominator, which is 10

6 0

3 years ago

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24 times 57 times 34 plus 50

Dima020 [189]

Answer:

46,562 :) Brainliest pleaseeee

8 0

3 years ago

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