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4 years ago

2 (k - 3) + 21 = -3 solve for K

Mathematics

1 answer:

Travka [436]4 years ago

8 0

Answer:

2(k-3)+21=-3

We move all terms to the left:

2(k-3)+21-(-3)=0

We add all the numbers together, and all the variables

2(k-3)+24=0

We multiply parentheses

2k-6+24=0

We add all the numbers together, and all the variables

2k+18=0

We move all terms containing k to the left, all other terms to the right

2k=-18

k=-18/2

k=-9

Hope this helped :)

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0.441 to its standard form

vlada-n [284]

Answer:

erm

Step-by-step explanation:

4.41 times 10^-1

8 0

3 years ago

A chef got 7 bags of onions. The red onions came in bags of 8 and the yellow onions came in bags of 3. If the chef got a total o

frutty [35]

Answer:

$\#\text{ of 8-onion bags: }4,\\\#\text{ of 3-onion bags: }3$

Step-by-step explanation:

Let $a$ be the number of bags with 8 onions and let $b$ be the number of bags with 3 onions. We have the following system of equations:

$\begin{cases}a+b=7,\\8a+3b=41\end{cases}$

Subtracting $b$ from both sides of the first equation, we get $a=7-b$ . Substitute this into the second equation:

$8(7-b)+3b=41,\\56-8b+3b=41,\\56-5b=41,\\-5b=-15,\\b=\boxed{3}$

Therefore, the number of 8-onion bags is:

$a=7-b,\\a=7-3,\\a=\boxed{4}$

Thus, the chef got 4 8-onion bags and 3 3-onion bags.

5 0

3 years ago

I had 1/4 lasagna left i want to split that equally into 3 days how much would i eat each day?

Triss [41]

1/4 divided by 3
3/1 would become 1/3 because you changed from division to multiplication
1/4 times 1/3= 1/12
Hope this helped

6 0

3 years ago

Read 2 more answers

Plz help me with thisss

Lana71 [14]

Answer:

I'm pretty sure it's only B and D

6 0

3 years ago

Instructions:

satela [25.4K]

Answer:

The volume of a container is the amount of space in it.

The number of cubes on the edges are: 15, 12 and 13

The number of fish cubes in the box is: 2340

From the complete question (see attachment), we have the following parameters

Fish cubes

Shipping box

(a) The number of cubes on the edges

To do this, we simply the dimensions of the boxes, by the length of the fish cube

So, we have:

Hence, the number of cubes on the edges are: 15, 12 and 13

(b) The total number of cubes in the shipping box

To do this, we multiply the results of the computation in (a)

So, we have:

Hence, the number of fish cubes in the box is: 2340

Step-by-step explanation:

5 0

3 years ago