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arsen [322]
3 years ago
13

Please provide step by step explanation thanks

Mathematics
2 answers:
Romashka [77]3 years ago
6 0

Answer:

504

Step-by-step explanation:80/100 multiplied by 630

shepuryov [24]3 years ago
3 0

Answer:

Step-by-step explanation:

No. of students who can swim = 80% of 630

=\frac{80}{100}*630=8*63=504

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Evaluate 3^2 + (5-2) X 4 - 6/3
muminat

Answer:

The result is 19

Step-by-step explanation:

3^{2}  + (5-2)x4 - 6/3

Step 1: Parenthesizing (5-2)=3

3^{2}  + 3x4 - 6/3

Step 2: Exponentiation 3^{2}=9

9  + 3x4 - 6/3

Step 3: Multiplication and division 3x4=12 and 6/3=2

9  + 12 - 2

Step 4: Addition and subtraction 9+12=21, and 21-2=19

21-2

19

The operations are ordered from highest to lowest in the order:

1. Parenthesizing,

2. Factorial,

3. Exponentiation,

4. Multiplication and division,

5. Addition and subtraction.

Hope this helps!

6 0
3 years ago
Read 2 more answers
A carpenter is refinishing two cupboards. She must add the areas of the cupboards to determine the amount of plywood she needs.
Vesna [10]

You are given the area of both cupboards.

The total area would be found by adding the two areas together:

3a^2 − 5y + 15 + 4a^2 + 5y + 5

Combine like terms:

3a^2 + 4a^2 = 7a^2

-5y + 5y = 0y

15 +5 = 20

The area of both cupboards would be 7a^2+20

5 0
4 years ago
Help!? 20 points!!
SVETLANKA909090 [29]

Answer:

value of x = 20°

Step-by-step explanation:

the given pair of angles are pair of co - interior angles

So, their sum = 180°

=》3x - 10° + 5x + 30° = 180°

=》8x + 20° = 180°

=》8x = 180° - 20°

=》8x = 160°

=》x = 20°

8 0
3 years ago
The band members marched in 8 rows. There were 6 band members in each row. Explain how the fact that 5x6=30 can help you find 8x
Andrej [43]
If you know that 5*6=30 then you know that the answer will be more than 30. So now you have to just add 6 to the number 30 three more times to get the answer that 8*6=48
6 0
3 years ago
Jimmy was 12 years old in 2014 and now in 2016 he is 15 how did he grow 3 years in 2 years?
mr_godi [17]
D. He was born on January 20th
If he was born on January 20th, he would be the oldest in his school classes. Right when the new year starts, his birthday comes up.
4 0
3 years ago
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