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laila [671]
3 years ago
9

What is -1/15 + (-3/5) in simplest form. Don't explain.

Mathematics
2 answers:
Stels [109]3 years ago
6 0

Answer:

-10/15 ..................................

creativ13 [48]3 years ago
6 0

Answer: 10/15 = 2/3

Step-by-step explanation: but if you dont have 10/15 pick 2/3

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In 2001 , a youth clubs total income was £1000 the club spent 60% of its total income on renting a hall it further spent £250 on
never [62]

Answer:

12:5

Step-by-step explanation:

To calculate the ratio, we must first find the values of the two expenditures. The amount spent on renting a hall was 60% of £1000. To represent percentages in decimals, we can simply divide the percentage by 100, resulting in 0.6 here. We can then multiply this value by 1000 to get the amount spent on renting a hall, which comes out to £600

The ratio is then 600 : 250,  60 : 25 (divide both sides by 10) , or 12:5 (divide both sides by another 5)

5 0
3 years ago
Lewis checked the balance of his savings
vichka [17]

Answer:

Linear

Step-by-step explanation:

The balances each go up by $110

300 + 110 = 410

410 + 110 = 520

520 + 110 = 630

4 0
3 years ago
The claim is that the standard deviation of the speeds of drivers in Bradford is 8 mph. An experienced driver feels that this is
Irina-Kira [14]

Answer:

Null hypothesis is rejected. Standard deviation is > 8 miles per hour

Step-by-step explanation:

σ [Population standard deviation] = 8 , s [sample standard deviation] = s

n [no of items] = 8

H0 [Null] : σ = 8 ; H1 [Alternate - Right Tail] : σ > 8

χ2 = (n - 1) . s^2 / σ^2

= 49 x (10.5)^2 / 82 = 5402.25 / 64

χ2 = 84.410

df [degree of freedom] = n -1 = 50 - 1 = 49

P value (χ^2 49 > 84.410) = 0.00125

p = 0.0013

p < α ie 0.05

So, H0 is rejected

Hence we state that standard deviation is > 8 miles per hpur

6 0
3 years ago
Ashley is making $500 a week at her job. She receives a 20% pay raise.
tamaranim1 [39]

Answer:

$100 increase

Step-by-step explanation:

500 x 20%

= $100 increase


5 0
3 years ago
Read 2 more answers
What is the value of n in this equation?<br>n+ 134 = 379<br>423<br>245<br>334​
alexira [117]

Answer:

the answer to this question is 245

Step-by-step explanation:

n+134=379

-134 -134

n=245

5 0
3 years ago
Read 2 more answers
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