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Firdavs [7]
3 years ago
14

49 - z^2 / z + 7 for simplified answer

Mathematics
2 answers:
podryga [215]3 years ago
8 0

Answer:

7-z

Step-by-step explanation:

g100num [7]3 years ago
8 0

Answer:

80=2/4 .5(+2)

Step-by-step explanation:

cuz

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5. Friday morning the Matthews family goes to town to buy groceries. The following three
sergij07 [2.7K]

Answer:

Step-by-step explanation:

Hello!

To compare different prices of several brands of a product the best is to express the price for the same quantities of product.

Since the three options are original in 300g, 450g and 600g, I'll express all prices on a base of 100g of product. You can use simple rule of three for this:

Option 1

300g cost $3.89

100g cost \frac{100*3.89}{300} = $1.296

Option 2

450g cost $ 4.77

100g cost \frac{100*4.77}{450}= $1.06

Option 3

600g cost $ 6.59

100g cost \frac{100*6.59}{600}= 1.098

So:

Option 1: $1.296/ 100g

Option 2: $1.06/100g

Option 3: $1.098/100g

The cheapest option is number 2

I hope this helps!

5 0
2 years ago
Carson claims that the opposite of any integer X is always a negative number is he correct explain why or why not
viktelen [127]
I would say he is incorrect because integers are both negative and positive 
8 0
3 years ago
If a survey is selected at random, what is the probability that the student is a girl who chose apple as her favorite fruit
Paladinen [302]

Answer:

0.15

Step-by-step explanation:

Total number of students surveyed = 300

From the table,

(Girl n apple) = 46

P(girl n apple) = 46 / 300 = 0.153

8 0
2 years ago
): How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body? Show your w
Airida [17]
<span>Approximately 25. Of the 5 grades of sand used in the United states, medium sand has particles ranging from 0.25 mm to 0.5 mm. For convenience, I'll use 0.5mm as the diameter of a grain of sand. Human cells range from a volume of 30 cubic micrometers (human sperm cell) up to 4 million micrometers (human egg cell). For the average human cell, I'll use an osteoblast with a volume of 4000 cubic micrometers or a diameter of 2x10^-5 meters. Now just take the diameter of a grain of sand and divide by the diameter of a human cell. 5 x 10^-4 / 2x10^-5 = 5/2 x 10^(-4 - -5) = 2.5x10^1 = 25 So the diameter of a grain of sand at 0.5 mm is approximately 25 times larger than that of a human cell at 0.02mm</span>
4 0
3 years ago
SOLVE FOR X ANSWER IN FRACTION FORM I DONT NEED TO SHOW WORK​
ExtremeBDS [4]

Answer:

x=\frac{27}{2}\:\text{or}\:13.5

Step-by-step explanation:

Both triangles are shown are similar. Therefore, the ratio of their sides will be maintained. We can then set up the following proportion:

\frac{2}{11}=\frac{3}{3+x},\\2(3+x)=33,\\(3+x)=16.5,\\x=\boxed{13.5\text{ or }\frac{27}{2}}

5 0
2 years ago
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