MATHEMATICS MIDDLE SCHOOL

If 300% of 0.18 is equivalent to 20% of b, then b is equivalent to what number?

Answers

Answer 1

Answer:

B is equivalent to 270.

What is pencentage?

The calculation of per cent i.e., per 100 is known as percentage.

How to calculate percentage?

Here, 300% of 0.18 is equivalent to 20% of b

or, 300%*0.18=20%*b

or,54=b/5

or, b=270

Learn more about percentage here :

brainly.com/question/2236179

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Answer 2

Answer:

Answer:

2.7

Step-by-step explanation:

3*0.18=0.54

0.54/0.2=2.7

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Answers

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Next week your math teacher is giving a chapter test. The test will consist of 35 questions. some problems r worth 2 point and some r worth 4 points. there are 20 questions worth 2 points. how many problems are worth 4 points. solve by substitution

Answers

20 questions are worth 2 points and 15 questions are worth 4 points.

Let x represent the number of problems worth 2 points and y represent the number of problems worth 4 points.

The test will consist of 35 questions. Hence:

x + y = 35 (1)

There are 20 questions worth 2 points, hence x = 20:

x + y = 35

20 + y = 35

y = 15

Therefore 20 questions are worth 2 points and 15 questions are worth 4 points.

Find out more at: brainly.com/question/21105092

There are 35 total questions. You already know that 20 of the questions are worth 2 points. You subtract 20 from 35. 35-20=15. So 15 questions are worth 4 points.
Total questions~35. Worth 2 points~20. Worth 4 points~15.

Is 50 a multiple of 5

Answers

Yes it is just count by 5's

50 is a multiple of 5 because 5x10=50

last year a state university received 3,560 application from boys of those application 35% were boys who lived in other states how many applications did the university receive from boys who lived in other states

Answers

3560 * 35/100
3560 * 0.35
= 1246 students lived in other states

Please help me solve the equation
3x+10y=48
7x+4y=54

Answers

3x+10y=48
7x+4y=54

multiply the first equation by 2 and the 2nd equation by 5 to remove y
6x+20y=96
35x+20y=270
29x=174
x=6

substitute to any equation
7x+4y=54
42+4y=54
4y=12
y=3

the value of x is 6 and the value of y is 3

Answer: x=36/7

y=9/2

Step-by-step explanation:

1 Solve for yy in 3+10y=483+10y=48.

y=\frac{9}{2}y=

2 Substitute y=\frac{9}{2}y=

into 7x+4y=547x+4y=54.

7x+18=547x+18=54

3 Solve for xx in 7x+18=547x+18=54.

x=\frac{36}{7}x=

4 Therefore,

\begin{aligned}&x=\frac{36}{7}\\&y=\frac{9}{2}\end{aligned}