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grin007 [14]
3 years ago
7

IF YOU DO IT THEN YOU WILL GET BRAINLIEST! −9x+4y=6 9x+5y=−33 ​ SOLVE FOR X AND Y

Mathematics
1 answer:
BigorU [14]3 years ago
7 0

Answer:

x = 2  y = 3

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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4: A school has 314 boys & 310 girls. If they are to be grouped into equal classes of 26 each , how many classes will there
kherson [118]

4: A school has 314 boys & 310 girls. If they are to be grouped into equal classes of 26 each , how many classes will there be?

314 boys + 310 girls = 624

If they are grouped into classes of 26 students each, how many class will there be?

130 students = 5 classes

Therefore

260 students = 10 classes

260 x 2 = 520 = 20 classes

26 x 24 = 624

Number of classes = 24

Question 5).

Jim worked 48 weeks last year. Each week he worked 38 hours. If he worked an additional 240 hours of overtime, how many hours did he work in all?

Solution:

48 weeks

24hrs × 7 = 168hrs

168 x 48 = 8,064

Additional 240hrs

= 168hrs = 7 days (a week)

240hrs - 168 = 72 (3days)

168 + 72

= 240hrs + 8, 064

= 8, 304 hrs

6 0
3 years ago
Calculate the distance between (0,3) and (3,10) to 1 decimal place
Artemon [7]
Alright, so the distance formula is sqrt((x1-x2)^2+(y1-y2)^2), and plugging that in, we get sqrt((0-3)^2+(3-10)^2)=sqrt((-3)^2+(-7)^2)=sqrt(9+49)=sqrt(58)=around 7.6
5 0
3 years ago
What is a isoscelecs triangle
poizon [28]
A isosceles triangle is a triangle who has two sides of the same length
7 0
3 years ago
The sum of three numbers is 21. Three times the smallest is 3 less than the largest, while the sum of the largest and smallest i
Lynna [10]
3, 6, 12
I guessed and checked. So if 3 is the smallest number, I would, multiply it by 3, which is 9. 9 is 3 less than the largest number which would be 12. 12 + 3 is 15. To find the third number, subtract 21 and 15 which is 6
7 0
3 years ago
Read 2 more answers
What do I do on this?
stiks02 [169]
All you do is measure it with a ruler and for every 1 cm you get multiply it by 8.5ft. 
so for example if you got 6cm then you would multiply it by 8.5ft and your answer would be 51ft.
4 0
3 years ago
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