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kati45 [8]
3 years ago
13

Neural tube defects are birth defects of the __________ and __________. A. neurons . . . umbilical cord B. brain . . . spinal co

rd C. brain . . . umbilical cord D. spinal cord . . . umbilical cord Please select the best answer from the choices provided
Mathematics
1 answer:
raketka [301]3 years ago
6 0

Answer:

b

Step-by-step explanation:

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I figured out part A each notebook is $2.75 and each pencil is $1.10 but I need some help on part B. I figured out that he can b
tangare [24]

Answer:

2 notebooks

Step-by-step explanation:

I understand you already figured out that it was 3 notebooks, but when I calculated it, I believe he could only buy 2...

Personally, I would show my work by first doing the calculation: 2.75[1 notebook price]+ (3[pens/pencils per notebook]*1.10[pen/pencil cost])= $9.075 per notebook and 3 pens

If you then showed that you multiplied 9.075 by 2... you would get $18.15 which is the closest you could get to his limit of $22 without going over

If we applied your answer of 3 notebooks, then the total would be $27.225 which goes over the money limit.

Hope I helped!

6 0
3 years ago
Read 2 more answers
An inhalation aerosol contains 225 mg of metaproterenol sulfate, which is sufficient for 300 inhalations. How many micrograms of
noname [10]

Answer:

Each inhalation has 750 micrograms of metaproterenol sulfate.

Step-by-step explanation:

First step: How many miligrams are there in each inhalation.This can be solved by a rule of three problem.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

In this step, our measures are:

- The number of inhalations.

- The quantity inhaled.

As the number of inhalations increases, so does the quantity inhaled. This means that this is a direct rule of problem.

300 inhalations contains 225mg of metaproterenol sulfate. How many miligrams are in a inhalation?

300 inhalations - 225mg

1 inhalation - xmg

300x = 225

x = \frac{225}{300}

x = 0.75mg

Each inhalation has 0.75mg of metaproterenol sulfate.

Final step: Conversion of 0.75mg to micrograms.

Each mg has 1000 micrograms. So:

1mg - 1000 micrograms

0.75mg - x micrograms

x = 1000*0.75

x = 750 micrograms

Each inhalation has 750 micrograms of metaproterenol sulfate.

7 0
3 years ago
Can I get some help please
LenaWriter [7]
Dividing integers is the opposite of multiplying integers.
4 0
3 years ago
A square plot of land has an area of 250000 square feet. What's the length of one side of the plot? A. 480 feet B. 525 feet C. 5
Kisachek [45]

Answer:

500 feet

Step-by-step explanation: A square has the same number for its length and width because all sides are equal. What two numbers if you multiply together will give you 250000. 500 * 500 is 250000.

7 0
3 years ago
The perimeter of the obtuse triangle to the right is 7.2 inches. Two of the three sides are labeled. What is the measurement of
stich3 [128]

Answer:

2.1inches

Step-by-step explanation:

3.4+1.7+x=7.2

5.1+x=7.2

x=7.2-5.1

x=2.1

3 0
3 years ago
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