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natali 33 [55]
3 years ago
5

Last one pls help for brainlist

Mathematics
2 answers:
Sladkaya [172]3 years ago
6 0

Answer:

1/10

Step-by-step explanation:

first you find the common denominator.

multiply 1/2 by 5 and 2/5 by 2

now you have 5/10-4/10

now its easy and the answer is 1/10

Sloan [31]3 years ago
5 0

Step-by-step explanation:

answer is 5/10-4/10= 1/10 sorry if im wrong

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Please help me: w+7/8=3/4 Show you're work
KengaRu [80]

Answer:

w = -1/8

Step-by-step explanation:

-1/8 is like taking 1/8 from 7/8 making it 6/8 which = 3/4

8 0
3 years ago
Please solve this problem tnx....​
True [87]

Answer:

27.50

Step-by-step explanation:

Since it is 16.50 each and they bought 5 packets total an easy way to solve this problem would be that you multiply 16.50 × 5 which will give you how much the total cost of the candy would be:

16.50 × 5 = 82.50

Since that is the total amount you would then divide 82.50 by 3 since Mary and her friends all split the cost three ways (since there are three of them):

82.50 ÷ 3 = 27.50

Which will give you your answer.

7 0
3 years ago
Does any body know Jsipes44
olchik [2.2K]

Answer:

No..... who's that's

Step-by-step explanation:

jsjsjdkdhshnskxjxnxbhckdkdkmfjcjcjcjncjcnxmxkxjjxjxjxhchdhjxjxjcjcjjgkfkf

5 0
3 years ago
ranslate the sentence into an equation using n as the unknown number. Then solve the equation for n. Two times a number increase
joja [24]
Hi there!

Let's break this down:
Two times a number = 2n
Increased by 5 = + 5
is 15 - = 15

Total equation:
2n + 5 = 15

Solving:
2n + 5 = 15
2n = 10
n = 5

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
4 0
3 years ago
A? 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense he
masya89 [10]

Answer:

The correct option is option c.

H0: p not equal to 0.5

H1: p equal to 0.5

Step-by-step explanation:

1. H0: p not equal to 0.5

H1: p equal to 0.5

2. P cap = 104/ 260

P cap = 0.4. ( where p cap is the sample proportion)

3. Find the test statistic

Using : Z = ( p cap - p) /√ [(p ×q)/n] where p = 0.5 q= 1-p = 0.5. n=260

Z = -3.23

4. P value = 0.006

5. Since p value is less than the alpha level (0.01) . we reject the null hypothesis and conclude that the touch therapists are not effective.

4 0
3 years ago
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