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Andrej [43]
3 years ago
7

On friday,3/10 of the students at a school were wearing white shirts and 5/12 of the students were wearing blue shirts.What frac

tion of students were wearing either a white shirt or blue shirt ?
Mathematics
1 answer:
inessss [21]3 years ago
7 0
30 white I think I hope you get it right
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) [7 − 2x + 5y − (x − y)] − (5x + 3y − 7)​
ale4655 [162]

Answer:

[7-2x+5y-(x-y) -[5x+3y-7]

= 7-2x+5y-x+y-5x-3y+7

=7+7-2x-x-5x+5y+y-3y

=14-8x+3y

=-8x+3y+14

Step-by-step explanation:

6 0
3 years ago
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Can someone sub to my youttube channel pls, its called Yakobu, it would really help out :)
mestny [16]

Answer:

yea i will what do u do ther???

Step-by-step explanation:

ohhhh gamer

6 0
3 years ago
Jason decided to look at new trucks. Jason found a used truck for 34,000 dollars. A new truck is 40,000 dollars so what percent
nexus9112 [7]

Answer:

Percent of rise of a new truck on a used truck  = 15%

Step-by-step explanation:

Let x be the percentage of saved money if Jason buying a used truck.

Given:

Price of the used truck = $34,000

Price of the new truck = $40,000

We need to find the percent of rise Jason saves on a used truck rather than buying a new truck

Solution:

Using a percentage formula.

percentage\ cost = \frac{(100-x)}{100}\times Original\ cost

Substitute Percentage cost = 34,000 and Original cost = 40,000 in above formula.

34000 = \frac{(100-x)}{100}\times 40000

34000 = (100-x)\times 400                    (\frac{40000}{100}=400)

Using cross multiplication rule.

(100-x)=\frac{34000}{400}

85=100-x

x = 100-85

x = 15%

Therefore, Jason used 15% rise of a new truck for a used truck.

6 0
4 years ago
Brainliest
Romashka [77]

Answer:

Find the product as follows 9/10 x 2/5= 18/50

Step-by-step explanation:

I had this question and got it right!

6 0
3 years ago
Solve for x and y: 7y−5x=31 & x=4−2y
horrorfan [7]
7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,

y =3, x = -2.

Weird 20 min without answer!
7 0
3 years ago
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