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Akimi4 [234]
3 years ago
11

In a school, 25% of the teachers teach basic math. If there are 50 basic math teachers, how many teachers are there in a school?

Mathematics
2 answers:
Harman [31]3 years ago
7 0

Answer:

Total teachers = 200

Step-by-step explanation:

Let x be the total teachers in school

Basic Maths teachers = 25 % of x

Basic Maths Teachers = 50

=> 25% of x = 50

=> \frac{25}{100} x = 50

=> \frac{x}{4} = 50

Multiplying both sides by 4

=> x = 200

Juli2301 [7.4K]3 years ago
4 0

Answer:

200 teachers

Step-by-step explanation:

If 25% is a fourth of the teacher staff, and this value is fifty, to find out how many teachers there are you just have to multiply by 4 to find out the 100%. So this means that 50*4= 200

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Is y = 3/2x +5/4 and -2x+8y=-25 a solution
nekit [7.7K]

Answer: x=-35/10

              y=-4

Step-by-step explanation:

y = 3/2x +5/4

-2x+8y=-25

--------------------

replace y in second equation with: y = 3/2x +5/4

-2x+8(3/2x+5/4)= -25

-2x+12x+10= -25

10x=-35

x=-35/10

x=-3.5

7+8y= -25

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y=-4

7 0
3 years ago
Plllsss answer! I don't understand this question.
Softa [21]

Answer:

  C and D

Step-by-step explanation:

Population density is the ratio of population to area. Its units are persons per square mile. Here, you're being asked to compare the population densities of several countries to the average population density in several US states.

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<h3>average</h3>

The idea of "average population density of the 10 states listed" is somewhat ambiguous. It could mean either of (a) the ratio of the total of the states' population to the total of their land area, or (b) the average of the population densities of the states. (In the attached, we computed both, but the answer remains the same using either number.)

When there are numerous identical calculations to be performed, it is convenient to let a spreadsheet do them. The attached spreadsheet shows the population densities for the 10 states and 5 countries listed.

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<h3>countries</h3>

The 5 countries have population densities ranging from about 7.7 to 236 people per square mile. Two of the countries have density below 10.5, so are the answers to the question asked.

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4 0
2 years ago
Equation for $.10 times 30 equals three dollars
sukhopar [10]

Answer:

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or you could do

30×.1=3

you could use either one but I dont know what the person your turning the work in requires the equation to look like

6 0
3 years ago
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How do you add with decimals step by step?
astra-53 [7]

Answer:

https://www.mathsisfun.com/adding-decimals.html

This has an explanation.

5 0
3 years ago
ABC is a dilation image of DEF. What is the scale factor?
GrogVix [38]
The complete question in the attached figure

we know that
length side AB=8 units
length side DE=4 units


[ABC]=[DEF]*[scale factor]
then
[scale factor ]=[ABC]/[DEF]---------> 8/4--------> 2

the answer is
the scale factor for a dilation image of DEF to obtain ABC is 2

4 0
3 years ago
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