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Dovator [93]
3 years ago
11

What is the answer to -7(k-8)+2k

Mathematics
2 answers:
Vlad [161]3 years ago
8 0

Answer:

k=56/5 or 11.2

Step-by-step explanation:

-7(k-8)+2k

distribute -7 into the parentheses

-7k+56+2k

add the similar variables together

-5k+56

add -5k onto the other side

56=5k

divide by 5

56/5

(you can divide with a calculator to get a decimal if you would like)

Nataly [62]3 years ago
6 0
-5k+56


Distribute -7 through the parentheses
-7k+56+2k

Collect like terms
-5k+56

Solution
-5k+56
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Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12. The next week, Sarah bought 2 loaves o
sergejj [24]

Answer:

Here, b represents one loaf of bread and m represents the one gallon of milk.

As per the statement:

Arah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12.

⇒4b+m = 12  

It is also given that the next week, Sarah bought 2 loaves of bread and 3 gallons of milk for $13.50.

⇒2b+3m = 13.50

Then; system of equation :

4b+m = 12                   .....[1]

2b+3m = 13.50           .....[2]

Solve for b and m using above system of equations.

Multiply equation [2] by 2 we get;

4b+6m = 27              .....[3]

Subtract equation [1] from [3] we get;

4b+6m - 4b -m= 27-12

Combine like terms;

5m= 15

Divide both sides by 5 we get;

m = $3

Substitute the value of m in equation [1] we get;

4b+3 = 12

Subtract 3 from both sides we get;

4b=9

Divide both sides by 4 we get;

b = $2.25

Therefore, cost of one loaf of bread (b) and one gallon of milk (m) are:

$2.25 ad $3



3 0
3 years ago
Which word phrase represents the variable expression? 2(n + 4) 
Cerrena [4.2K]

Answer:

D. please mark me brainliest

Step-by-step explanation:

So thie equation basically means 2 times a number and 4 times 2 and the sum of that so as a equation it is 2*n+8 so it is n+4 times 2 so twice the sum of a number and 4

7 0
3 years ago
The graph below could be the graph of which exponential function?
IgorLugansk [536]
B is the answer your welcome
8 0
3 years ago
Help! For solving the compound inequality
MrRa [10]

Click on the second choice, the 3x one

7 0
3 years ago
50% of 30, hurry &lt;3<br> its saying my question is too short so ignore what im saying rn
9966 [12]

Answer:

The answer is 15

Step-by-step explanation:

50% of 30

30 × 50 ÷ 100 = 1500/100 = 15

Thus, The answer is 15

<u>-TheUnknownScientist</u><u> 72</u>

3 0
3 years ago
Read 2 more answers
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