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3 years ago

CAN SOMEONE SOLVE NUMBER 4 FOR ME? ILL GIVE BRAINLIEST

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

Answer:

MAKE HIM BRAINLIEST

Step-by-step explanation:

kirza4 [7]3 years ago

5 0

Answer:

Ms. sim is not correct

Step-by-step explanation:

Rectangular Prism A

4 x 5 x 6 =

4 x 5 = 20

20 x 6 = 120 cm cubed

Rectangular Prism B

3 x 7 x 6 =

3 x 7 = 21

21 x 6 = 126

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Elimination Method: 6x - 4y = -24 and 4x + 5y = -2

nirvana33 [79]

Answer:

$(-2;-6)$

Step-by-step explanation:

First of all, let's rewrite the first one after dividing both sides by 2.

$\left \{ {{3x-2y=-12\atop {4x+5y=-2}} \right.$

Now, let's pick one you want to eliminate.

Eliminating x: Let's multiply the first one by 4, the second by 3, and subtract one from the other. Rest is simply solving an equation in one variable

$4I-3II : 12x-8y-12x+15y = -48 - (-6)\\7y = -42 \rightarrow y= -6$

Eliminating y: Let's multiply the first by 5, the second by 2, and add them together. Rest is simply solving an equation in one variable

$5I+2II: 15x -10y +8x +10y = -60 +4\\23x = -56 \rightarrow x=-2$

4 0

2 years ago

Raul has 50 coupon books to sell. he must sell at least 10 coupon books to win a prize. the amount of money raul makes from sell

Lana71 [14]

I believe that the answer is: A all integers from 10 to 50 , inclusive

6 0

3 years ago

Find the equation is standard form, of the line passing through he points (2,-3) and (4,2)

Simora [160]

The point slope formula:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

$(2,\ -3)\to x_1=2,\ y_1=-3\\(4,\ 2)\to x_2=4,\ y_2=2$

Substitute:

$m=\dfrac{2-(-3)}{4-2}=\dfrac{5}{2}=2.5\\\\y-(-3)=2.5(x-2)\\\\y+3=2.5x-5\ \ \ \ |+5\\\\y+8=2.5x\ \ \ \ \ \ |-y\\\\2.5x-y=8\ \ \ \ \ |\cdot2\\\\\boxed{5x-2y=16}$

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3 years ago

Six times a number, increased by 3 is is 27. find the number

Mekhanik [1.2K]

Answer : The number is 4.

Step-by-step explanation:

Given : 

six times a number, increased by 3 is is 27.

To Find: 

The number.

Solution : 

Let the number is x

six times a number is 6x

Increased by 3 = 6x+3

According to the given question :

Solving the value x : 

6x+3 =27

6x = 27-3

6x = 24

x = 24/6

x = 4

Hence, the number is 4.

6 0

3 years ago

PLS HELP

LiRa [457]

There is 3600 seconds per hour.
Multiply the speed per second by 3600 to get the speed in miles per hour then convert to kilometer/hour.

4.9 * 3600 = 17,640 miles per hour

17,640 x 1.6 = 28,224 kilometers per hour

8 0

3 years ago