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topjm [15]
3 years ago
9

given two values with the same number of decimal places and a significant digits, is it possible for an operation performed with

the two values to have a different number of decimal places or significant digits than the original values?
Mathematics
1 answer:
Akimi4 [234]3 years ago
5 0
Need to see more info jk idk what grade u are after that i will know how to help
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Simplify the expression and then substitute the given number for the variable. For expression 8a2+6b+9a2+9b2+3b, find the value
Harlamova29_29 [7]

Answer: 68

Step-by-step explanation:

Simplifying the expression:

= 8a² + 6b + 9a² + 9b² + 3b

Collect like terms

= 8a² + 9a² + 6b + 3b + 9b²

= 17a² + 9b + 9b²

We then substitute a=2,b=−1.

= 17a² + 9b + 9b²

= 17(2)² + 9(-1) + 9(-1)²

= 68 -9 + 9

= 68

8 0
3 years ago
Two numbers are in the ratio 2:3 and their sum id 45 then find both numbers​
iragen [17]

Let the numbers be 2x and 3x.

<u>According to the Question</u>,

⇒ 2x + 3x = 45

⇒ 5x = 45

⇒ x = 45/5

⇒ x = 9

<u>Now finding the values of both the number,</u>

⇒ 2x = 2 × 9

= 18

⇒ 3x = 3 × 9

= 27

<u>Hence, the value of both the number is 18 and 27 respectively.</u>

7 0
3 years ago
Read 2 more answers
At smith lake boat rentals it costs $25 per hour to rent a boat plus one time charge for cleaning. The bengal family rented a bo
vesna_86 [32]

Answer: the Jones family paid $164

Step-by-step explanation:

Let x represent the one time charge that smith lake boat rentals charge for cleaning.

The bengal family rented a boat from 11 am- 6:30pm and paid $226.50. This means that the number of hours for which they rented the boat is

11 - 6:30/= 7.5 hours

Therefore,

25 × 7.5 + x = 226.5

187.5 + x = 226.5

x = 226.5 - 187.5

x = $39

If the jones family rented a boat from 8am-1pm, the number of hours would be 5 hours.

The amount that they paid is

39 + 5 × 25 = 39 + 125

= $164

3 0
2 years ago
HHHHEEEELLLLPPPP!!!!
garri49 [273]

Answer:

28%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
2(x + 4) - 5 = 3x + 3
OverLord2011 [107]

Answer:

x=0

Step-by-step explanation:

2(x+4)- 5 = 3x+3

Distribute

2x+8-5 = 3x+3

Subtract x values

8-5 = x+3

3 = x+3

Final Subtraction

x = 0

3 0
3 years ago
Read 2 more answers
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