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topjm [15]
3 years ago
5

I need help please :)

Mathematics
1 answer:
givi [52]3 years ago
5 0
11x9=99
11x7=77
7x5/2=35/2
99+99+77+35/2+35/2= 310

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Will give brainliest 100 points Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.
gulaghasi [49]

Answer:

-3m-4n+14 (D)

Step-by-step explanation:

R-S+T=

<em>Substitute the Values given</em>

(11-2m)-(n+5)+(-m-3n+8)=

<em>Open Parenthesis</em>

11-2m-n-5-m-3n+8=

<em>Combine Like Terms</em>

-3m-4n+14

6 0
3 years ago
6.5 x 1/9 please help
hjlf

Answer:

13/18

Step-by-step explanation:

  • 6.5 · 1/9 = 6 5/10 · 1/9
  • 6 5/10 · 1/9 = 6 1/2 · 1/9
  • 6 1/2 · 1/9 = 13/2 · 1/9
  • 13/2 · 1/9 = 13/18

Therefore, 6.5 · 1/9 = 13/18.

7 0
2 years ago
What is the value of y?
VikaD [51]

The answer is 57 because using remote angles theorem you get the largest angle equals to 66 degrees but you are not done yet you have to subtract 66 from 180 because of sum of angles in a triangle so you get 114 degrees and since you have an isosceles triangle you have to divide by two to get y so y = 57 degrees

5 0
3 years ago
I need help with this badddddddddd
tiny-mole [99]

Answer:

She forgot to add the zero when she multiplied 27 x 50

Step-by-step explanation:

If you need one ask me I can try my best to explain

5 0
3 years ago
Find what equals to x and what equals to y
Nuetrik [128]

Answer:

x=15√2  y=90 degrees.

Step-by-step explanation:

Thanks to the Pythagorean Theorem we know that with any right triangle, A^2+B^2=C^2. In this case we can use 15^2+15^2=sqrt of 450. The square root of 450 is 15 times the square root of 2. Thus x=15√2. Now we need to find y. All angles in a triangle add up to 180 so if we have 45+45+y=180 then y=90.

3 0
2 years ago
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