Need help on this mathematical equation I have been assigned by my college teacher

Answer:

-12u+8w+16

Step-by-step explanation:

to get rid of the parenthesis you multiply everything that is inside of the parenthesis by -4

-4x3u=-12u

-4x-2w=8w

-4x-4=16

then we just add everything together and end with

-12u+8w+16

hope this helps (;

Answer:

Weight of empty bottle = 0.8 kg

Weight of water = 1.6 kg

Step-by-step explanation:

As given , A bottle weighs 1.2 kg when it is 1/4 full of water. It weighs 2.4 kg when it is full.

Let us assume

Weight of empty bottle = x

Weight of water = y

Now,

when the bottle is 1/4 full of water

then,

weight of water = [tex]\frac{1}{4}[/tex]×y

As given , Bottle weight = 1.2 , when it is 1/4 full of water

⇒ Weight of water + weight of bottle = 1.2

⇒ [tex]\frac{1}{4}[/tex]×y + x = 1.2

⇒ y + 4x = 4.8      .......(1)

Also given, A bottle weight = 2.4 , when it is full of water

⇒ Weight of water + weight of bottle = 2.4

⇒ y + x = 2.4        ......(2)

Subtract equation (2) from equation (1) , we get

y + 4x - ( y+ x) = 4.8 - 2.4

⇒ y + 4x - y - x = 2.4

⇒3x = 2.4

⇒x = [tex]\frac{2.4}{3}[/tex] = 0.8 kg

and y = 2.4 - x = 2.4 - 0.8 = 1.6 kg

∴ we get

Weight of empty bottle = x = 0.8 kg

Weight of water = y = 1.6 kg

Answer:

y=-2x-4

Step-by-step explanation:

The slope has a Y-intercept at the -4, which narrows the choices down to 2. Since the slope is leaning left, it's a negative, which will make the answer to this y=-2x-4

Answer:

i don't know

Step-by-step explanation:

Answer:

10/3

Step-by-step explanation:

Answer:

28/3

Step-by-step explanation:

Answer:

3 degrees.

Step-by-step explanation:

-6 + 9 is 3, giving you were answer.

Answer: 3 degrees F

Step-by-step explanation:

-6+9=3

rise=positive or +

Answer:

Step-by-step explanation:

whats the question

Answer:

wheres the question?? huhh

Answer:

72

Step-by-step explanation:

If 36% of 200 is the number of juniors, you can do

36% of 200

0.36 * 200

72

Answer:

[tex]A_4 = 170\ in^2[/tex]

Step-by-step explanation:

Given

[tex]Diameter = 18\ in[/tex]

[tex]Slices = 6[/tex]

[tex]Eaten = 2[/tex]

Required

Determine the area of the discarded part

First, calculate the area of the pizza.

[tex]Area = \frac{\pi D^2}{4}[/tex]

Substitute 18 for D and 3.14 for [tex]\pi[/tex]

[tex]Area = \frac{3.14 *18^2}{4}[/tex]

[tex]Area = \frac{1017.36}{4}[/tex]

[tex]Area = 254.34[/tex]

If he eats 2 out of the 6 slices, then it means he discarded 4 out of the 6.

So, the area of the 4 is:

[tex]A_4 =\frac{4}{6} * Area[/tex]

[tex]A_4 =\frac{4}{6} * 254.34[/tex]

[tex]A_4 =\frac{4* 254.34}{6}[/tex]

[tex]A_4 =\frac{1017.36}{6}[/tex]

[tex]A_4 =169.56in^2[/tex]

[tex]A_4 = 170\ in^2[/tex] -- approximated

The area of the discarded is 170 square inches

Answer:

its d

Step-by-step explanation:

8% of 20 is 1.6 so 20 + 1.6

Answer:

-5/8

Step-by-step explanation:

The line goes down 5 for every 8 spaces to the right.

Answer: -5/8 is the slope or m

Step-by-step explanation:that is an algebra calculator that can help you :)

Answer:

12 units

Step-by-step explanation:

notice that the y coordinate (-8) is the same for both points. you can ignore it and just look at the x coordinates. To calculate the distance, you use point a minus point b, so in this case it is 10-(-2). two negatives make positive, so the answer is 12 units.

Answer:

1/4

Step-by-step explanation:

1/8  /  2  x  4

1/8 / 2 = 1/16

4 x 1/16 = 4/16

4/16 = 1/4

Given:

A storekeeper put 840 cans of milk in packages with 5 cans each.

She sold each package for Php 42.00.

To find:

The total amount received by the storekeeper.

Solution:

We have,

Total number of cans = 840

Cans in one package = 5

Number of packages = [tex]\dfrac{\text{Total number of cans}}{\text{Cans in one package}}[/tex]

                                   = [tex]\dfrac{840}{5}[/tex]

                                   = [tex]168[/tex]

Selling price of each package = Php 42

Selling price of 168 package = Php (168×42)

                                                = Php 7056

The total amount received by the storekeeper is Php 7056.

Therefore, the correct option is C.

Answer:

Carlota is not correct

Step-by-step explanation:

A ratio represents relationship between of two or more things.

Ratio of minutes to gallons of water flowing through a garden hose [tex]=2:12[/tex]

Here,

[tex]2:12=1:6[/tex]

Also,

It's given that an equivalent ratio of minutes to gallons is [tex]6:1[/tex]

Now,

[tex]1:6\neq 6:1[/tex]

Therefore,

Carlota is not correct

Answer:

-20x

Step-by-step explanation:

remove parentheses: -4*5x

multiply the numbers: -4*5x

answer: -20x

[tex]tan = \frac{opp}{adj} = \frac{x}{24} [/tex]

[tex] \tan(62) = \frac{x}{24} [/tex]

[tex]x = 24 \tan(62) [/tex]

[tex]x = 45.1374351683[/tex]

[tex]x = 45.14[/tex]

Answer:

x ≤ 7

Step-by-step explanation:

1. add 4 to both sides x-4+4 ≤ 3+4

2. simplify x ≤ 7

Answer:

x≤7

Step-by-step explanation:

You want to isolate the variable to one side to get the answer. This is a one step inequality. You need to add 4 to both sides. x-4 +4 is x. 3+4 is 7. the Answer is x≤7

Answer:

[tex]\frac{10x}{7}[/tex]

Step-by-step explanation:

The quotient is the answer of a division problem. So, we get

[tex]\frac{10x}{7}[/tex]

Answer:

y=8

Step-by-step explanation:

Answer:

9/4

Step-by-step explanation:

you can use photomath for questions like these :P

Answer:

2 1/4

Step-by-step explanation:

3/4 x 3 = 9/4 = 2 1/4

Hope that helps!

Answer:

4.51389

Step-by-step explanation:

6*2=12 yd³/min

12*60= 720 yd³/hour

3250÷ 720 yd³/hour = 4.51389 hours

4.51389

Answer:

17

Step-by-step explanation:

51÷3 = 17

k=17

not sure what else to add but my answer had to be longer

Answer:

Answer:

The principal, real, root of:

9–√2

=3

All roots:

3

−3

9 is a perfect square

Answer:

The principal, real, root of:

25−−√2

=5

All roots:

5

−5

25 is a perfect square

Step-by-step explanation:

the first one is for the 9 and the second one is for the 50

Answer:

32

Step-by-step explanation:

1/4y is greater than or equal to 8.

Plug 32 in the y place.

1/4(32) is greater than or equal to 8.

8 is greater than or equal to 8. Since the inequality sign has the equal sign too, this makes the sentence true. Hope this helps, thank you !!

Answer:

6/13

Step-by-step explanation:

if u use the highest common factor 4,U get 6 when u divide 24 by 4 and 13 when you divide 52 by 4.

I hope this helps in any way :)

Answer:

18+45m

Step-by-step explanation:

9x2= 18

9x5m= 45m

18+45m

Answer:

oh i is this 6th grade math im in 5th sorry

Step-by-step explanation:

Answer:

ROC=4

Step-by-step explanation:

ROC=change in y/change in x

=ROC=8/2=4