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ki77a [65]
3 years ago
10

Describe how estimating would help you check if your answer is reasonable for problem 4.​

Mathematics
2 answers:
ira [324]3 years ago
4 0

Answer:

You can use estimation to check for reasonableness when you have math problems with all numbers. When you do use estimation, it won't tell you whether you actually have the correct answer, but it will tell you if you're close and your answer is probably right.

Step-by-step explanation:

Elena-2011 [213]3 years ago
4 0
For problem 4? I don’t see where that is but how that can work is you get the closest POSSIBLE number, or the exact number for the answer through all the calculations and formulas you follow, and the rules for shapes and angles.
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Total Price: The sales tax rate is 5%. If the sales tax on a 10-speed bicycle is $9, what is the purchase price?
Lesechka [4]

Answer:

The purchase price is $180

The total price is: $189

Step-by-step explanation:

Sales tax rate = 5\%

Sales tax on bike = $9

We need to find the purchase price.

Let purchase price = x

We know that Sales tax = 5% of x

and Total price = Purchase Price + Sales tax

So, we can write:

Sales tax = 5% of x

Putting values and finding x

9 =5\% \:of\: x\\9=\frac{5}{100}\:of\:x \\x= \frac{9*100}{5}\\x=180

So, the value of x i.e Purchase price = $180

The purchase price is $180

Now finding the total price of bicycle

Total price = Purchase Price + Sales tax

Total price = 180 + 9

Total price = $189

So, The total price is: $189

6 0
3 years ago
Whats (4.2×10^6)+(2.25 × 10^5) in scientific form
lys-0071 [83]
We are going to rewrite both numbers:
 (4.2 × 10 ^ 6) = 4200000
 (2.25 × 10 ^ 5) = 225000
 Adding we have:
 4200000 + 225000 = 4425000
 Rewriting in exponential notation we have:
 4425000 = 4,425 * 10 ^ 6
 Answer:
 
(4.2 × 10 ^ 6) + (2.25 × 10 ^ 5) is equal to:
 
4,425 * 10 ^ 6
8 0
3 years ago
2. Which of the following points lies in the solution set of the inequality y>/=3x+10?
Alex_Xolod [135]
Sorry if I am wrong I am not 100% sure but I think it’s 3
3 0
2 years ago
MMM HEY PLEASE HELP. IM LITERALLY ABOUT TO END MYSELF.
mariarad [96]

Answer:

so

Step-by-step explanation:

i would try C bc it has both 73 degrees and 83 degrees and i dont really know  what SAS is besides it means side angle side??? if its right can i have brainlest

7 0
2 years ago
Can some one help me PLEASEEE
notka56 [123]
3 months, 96 plus 78x3 = 330 (78x3=234+96) 110X3=330 meaning it is 3 months
3 0
3 years ago
Read 2 more answers
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