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SOVA2 [1]
3 years ago
11

Pls help question on the photo

Mathematics
2 answers:
borishaifa [10]3 years ago
5 0

Answer:

A

Then that gives you -n=2

Than u multiply it by -1 to get rid of the negative n, giving you the final answer of n=-2

Step-by-step explanation:

spin [16.1K]3 years ago
5 0

Answer:

It might be B

Step-by-step explanation:

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Which number sentence is true <br> 4.05=0.45<br> 4.05&lt;0.45<br> 0.45&gt;0.5<br> 0.45&lt;0.5
den301095 [7]

Answer:

0.45<0.5

Step-by-step explanation:

5 0
3 years ago
If a 12-student class averaged 90 on a test, and a 20-student class averaged 80 on the test, then all 32 students averaged
Alexxx [7]
Let the marks of the students in class 1 be

m_1, m_2, ....., m_1_2

the average of these 12 marks is 90, so 

\frac{m_1+ m_2+ .....+ m_1_2}{12}=90

which means

m_1+ m_2+ .....+ m_1_2=90*12=1080


similarly, let n_1, n_2, ....., n_2_0 be the marks of the students in the second class, 

so \frac{n_1+ n_2+ ..... n_2_0}{20}=80

which means n_1+ n_2+ ..... n_2_0=80*20=1600


The 32 students averaged:

\frac{(m_1+ m_2+ .....+ m_1_2)+(n_1+ n_2+ ..... n_2_0)}{12+20}= \frac{1080+1600}{32}= \frac{2680}{32}=   83.75
5 0
4 years ago
Read 2 more answers
2) Divide (8.6 x 108) by (3.2 x 103). Express your answer in scientific notation. <br> A) .26875 x 106 <br> <br> B) 2.6875 x 105
Naddik [55]
The answers B <span>2.6875 x 105 i took the test</span>
7 0
4 years ago
Sweetums finds that the cost of making a certain candy bar .15 per bar and that the fixed rate is 600 per week if each bar sells
PilotLPTM [1.2K]

We know that:

Profit = Revenue - Cost

Let us say x number of candies are made per week.

Finding Cost per week:

Cost of making 1 bar = 0.15

Cost of making x bars = 0.15x

Fixed rate of making candies per week = 600

Total cost of making x candies per week = 600 + 0.15x

Now let us find Revenue:

Selling price of each bar = 1.50

Selling price of x bars = 1.50x

Now we have to find profit,

Profit = Revenue - Cost

In order to have profit Revenue - Cost >0

So plugging values of revenue and cost to get number of candies,

1.50x-(0.15x+600)>0

1.50x-0.15x-600>0

1.35x-600>0

1.35x>600

x>444.44

Rounding off

x>444

Answer: The company must sell greater than 444 candies in order to make profit.

7 0
3 years ago
Writing an inequality for x that would give this rectangle a perimeter of at least 300 ft.
sdas [7]
This is how I did it, I really hope it helped you with your homework

4 0
3 years ago
Read 2 more answers
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