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Bingel [31]
2 years ago
14

URGENT!! PLEASE BE ACCURATE I ONLY HAVE ONE MORE ATTEMPT!!

Mathematics
2 answers:
Rasek [7]2 years ago
7 0
15/10 I’m 98% sure also is that delta math? I’m doing scale factor currently at school and using delta the format looks like it
professor190 [17]2 years ago
4 0

Answer:

scale factor 1.5 or 1 1/2

Step-by-step explanation:

15/2 is the same as 15÷2 and 15÷2=7.5

now we need to turn 5 into 7.5

to do that lets multiply by 5(1.5) or 5(1+0.5) (the 5 on the outside of the parenthesis means to multiply it by all on the inside)

and we get 5+2.5 or 7.5

so the scale factor is 1.5 or 1 1/2

You might be interested in
A number , x,rounded to 1 decimal place is 3.7 what is the error interval for x
Phantasy [73]
<h2>Answer:</h2>

The error interval for x is:

                  [3.65,3.74]

<h2>Step-by-step explanation:</h2>

The number after rounding off is obtained as:

                          3.7

We know that any of the number below on rounding off the number to the first decimal place will result in 3.7:

   3.65     3.66    3.67    3.68    3.69    3.70    3.71   3.72    3.73    3.74

( Because if we have to round off a number present in decimals to n place then if  there is a  number greater than or equal to 5 at n+1 place then it will result to the one higher digit  at nth place on rounding off and won't change the digit if it less than 5 )

         Hence, the error interval is:

             [3.65,3.74]

     

8 0
3 years ago
An oil tanker can be emptied by the main pump in 5 hours. An auxiliary pump can empty the tanker in 7 hours. If the main pump is
r-ruslan [8.4K]

Answer:

so the answer will be 1

Step-by-step explanation:

An oil tanker can be emptied by the main pump in 5 hours.

An auxilary pump can empty the tanker in 14 hours.

If the main pump is started at 7pm, when should the auxilary pump be started

so that the tanker is emptied by 11pm?

:

Let t = no. of hrs to run the Aux pump

:

The main pump will run 4 hr (7 - 11 pm)

:

Let the completed job = 1; (an empty Tanker)

:

The shared work equation

4%2F5 + t%2F14 = 1

Multiply equation by 70 to get rid of the equation, results:

14(4) + 5t = 70

56 + 5t = 70

5t = 70 - 56

5t = 14

t = 14%2F5

t = 2.8 hrs to run the aux pump

:

2.8 hr = 2 + .8(60) = 2 hrs 48 min

:

Subtract 2:48 from 11:00 = 8:12 PM start the aux pump

;

;

Check solution

4/5 + 2.8/14 =

.8 + .2 = 1

6 0
3 years ago
The beginning balance on the monthly bank statement for ians checking account was $289.37 and the ending balance was $409.28, wh
Vikki [24]
He deposited $119.91
8 0
3 years ago
Read 2 more answers
Solve these and show your work pls!
sertanlavr [38]

Answer :the 1st and 3rd are true

Step-by-step explanation:

you do the math how their set up so just right those and you can get your answer that way. (if your adding a positive and negative your basically subtracting so just write in the order their in; if you subtracting a negative from a positive it equals a positive; if your subtracting a negative from a negative or the answer is positive; if your subtracting a positive from a negative its negative) i hope this helps if u have any more questions just message me and i  will be happy to help you anytime!!! <3

3 0
2 years ago
the five members of the traynor family each buy train tickets during the train ride each family member buys a box one for $6.50
NeX [460]

Answer:

  $43.20

Step-by-step explanation:

If each family member buys one ticket and one lunch, then for ticket price t we have the total expenditure as ...

  5(t +6.50) = 248.50

  t +6.50 = 49.70 . . . . . divide by 5

  t = 43.20 . . . . . . . . . . subtract 6.50

The price of each train ticket is $43.20.

8 0
3 years ago
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