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ella [17]
3 years ago
12

Please help. i am screaming my brain out right now

Mathematics
1 answer:
Marina86 [1]3 years ago
3 0

Answer:

B

Step-by-step explanation:

3x - 3 >     42

3x - 3         42

     +3          + 3

3x      >      45

3x / 3         45/3

x         >       15

x can be 16

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Your are part of a team studying an endangered species of land snail in upstate New York. You and your colleagues capture and ma
ELEN [110]

Answer:

720 individuals

Step-by-step explanation:

According to my research, I can say that based on the information provided within the question you can conclude that the population of land snails has about 720 individuals. We can calculate this by using the Rule of Three formula that is attached below.

 x   ⇒   80 marked

45   ⇒   5 marked

\frac{45*80}{5} = x

720= x

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
3 years ago
Read 2 more answers
Alexa bought a pack of 12 cookies for $3.50 from the supermarket. How many packs of cookies can she buy for $17.50
Sonja [21]

Answer:

she can buy 5 packs of cookies

Step-by-step explanation:

17.50/3.50=5

hope this helped ;D

4 0
3 years ago
Express the answer with the proper number of significant digits 18.8998/2.2
Iteru [2.4K]

Answer:

8.6

Step-by-step explanation:

18.8998/2.2 = 8.590818181...

Since 2.2 has 2 significant digits, the answer has to have 2 significant digits.

Answer: 8.6

3 0
4 years ago
a vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made.
timofeeve [1]

Answer:

8,567

Step-by-step explanation:

Given the cost function expressed as C(x)=0.7x^2- 462 x + 84,797

To get the minimum vaklue of the function, we need to get the value of x first.

At minimum value, x = -b/2a

From the equation, a = 0.7 and b = -462

x = -(-462)/2(0.7)

x = 462/1.4

x = 330

To get the minimum cost function, we will substitute x = 330 into the function C(x)

C(x)=0.7x^2- 462 x + 84,797

C(330)=0.7(330)^2- 462 (330)+ 84,797

C(330)= 76230- 152460+ 84,797

C(330) = 8,567

Hence the minimum unit cost is 8,567

7 0
3 years ago
if the artist mixes 10 batches of concrete, how many sculptures combining 1 prism and 1 pyramid could he make?
Lady_Fox [76]

Answer:

Step-by-step explanation:

5 0
3 years ago
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