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zlopas [31]
3 years ago
5

for homework a student have to complete 15 problems total if she finished 6 problems in class what is the ratio of problem she's

still needs to complete two problems that she already finished
Mathematics
1 answer:
kvv77 [185]3 years ago
8 0
9:6 I think. Because if you subtract 6 from 15 you get 9 and that is how many she needs to finish and she has already finished 6
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Which of the following describes an example of mutually exclusive outcomes A and B for throwing a single 6-sided
swat32
Answer:
A=the outcome is odd, B=the outcome is even
Is mutually exclusive because you can't have a number that is even and odd at the same time.
Hope this helps :)
5 0
2 years ago
A lock has two digit numeric code, with the numbers 1 through 7 available for each digit of the code. Note that numbers can be r
lubasha [3.4K]
If there is 2 digits and 7 numbers the combos would be:
1,1 2,1 3,1 4,1 5,1 6,1 7,1
1,2 2,2 3,2 4,2 5,2 6,2 7,2
1,3 2,3 3,3 4,3 5,3 6,3 7,3
1,4 2,4 3,4 4,4 5,4 6,4 7,4
1,5 2,5 3,5 4,5 5,5 6,5 7,5
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7 0
2 years ago
Element X is a radioactive isotope such that every 26 years, its mass decreases by half. Given that the initial mass of a sample
SSSSS [86.1K]

Answer:

It will take 15.029 years for element X to reach mass of 260 grams

Step-by-step explanation:

The half life period of radioactive element X is 26 years

The initial mass of radioactive element X is 260 grams

Elapsed time = half life * log (beginning amount /ending amount)/log 2

Substituting the given values, we get

Elapsed time = 26 * log (390/260)/log 2

=  15.209 years

8 0
2 years ago
Peter is trying to buy fencing for the perimeter of his garden. His garden is in the shape of a rectangle with a length of 2(x+6
RideAnS [48]

Given dimensions of a rectangular garden are:

length = 2(x+6) feet

width = 3.5x feet

using the distributive property on length we get, length = 2x+12

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So, P = 2(2x+12+3.5x)

Solving it we get,

P = 2(5.5x +12)   ..............adding like terms

P = (2\times5.5)+(2\times12) .............multiplying and adding

P = 11x+24

So, perimeter is 11x+24 feet. This value of fencing will be needed.

4 0
3 years ago
I need to know what y is equal to. <br> 3/4 = 5/6 + y
irina1246 [14]
Well let’s make it a decimal.

.75 = .84 + Y

So if .84 is more than .75 then subtract
.75 from .84 and you have your answer then convert to fraction
7 0
3 years ago
Read 2 more answers
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