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sweet-ann [11.9K]
3 years ago
9

Solve system by addition. 3x=2y+10 9y=3x-7

Mathematics
1 answer:
Elden [556K]3 years ago
3 0
 for a fraction I got 3/7
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Help me with this please​
Eduardwww [97]

Answer:

A baseball diamond is a square with sides of 90 feet. What is the distance to the nearest tenth of a foot between home and second base?

Step-by-step explanation:

127.3 feet This problem requires the use of pythagoras theorem. Ignore the face that it's a baseball diamond. All you're concerned with is that you have a square that's 90 feet per side and you want to know what the length of the diagonal. So you have a right triangle with 2 sides of 90 feet each and you want to know the length of the hypotenuse. The formula is C^2 = A^2 + B^2 Both A and B are 90, so plugging them into the formula gives C^2 = 90^2 + 90^2 = 8100 + 8100 = 16200 So C^2 = 16200 Take the square root of both sides C = 127.2792 Round to the nearest tenth, giving C = 127.3

6 0
2 years ago
How do you factor trinomials?
gogolik [260]
1. identify the abc... ax^2+bx+c
2. write down all the factor pairs of C
3. identify which factor pairs from the previous step sums up to letter B
4.subsitute factor pairs in 2 binomials :)
5 0
3 years ago
The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many
laiz [17]

Answer:

4565 cm

Step-by-step explanation:

55 * 83

5 0
2 years ago
The Spanish Club has 78 members, 42 girls and 36 boys. What is the ratio of
elena-14-01-66 [18.8K]

Answer:

C. 7:6

Step-by-step explanation:

Take your ratio 42 (G): 36 (B) and divide both numbers by six. This comes out to 7 (G): 6 (B) which is the simplest form of this ratio.

5 0
2 years ago
Read 2 more answers
HELP PLS GIVING BRAINLIEST
Setler79 [48]

For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

y = mx+b

Where:

m: It's the slope

b: It is the cutoff point with the y axis

We need two points through which the line passes to find the slope:

(0,1)\\(1, -2)

We found the slope:

m = \frac {y2-y1} {x2-x1}\\m = \frac {-2-1} {1-0} = \frac {-3} {1} = - 3

So, the equation is of the form:

y = -3x + b

We substitute a point to find "b":

1 = -3 (0) + b\\1 = b

Finally, the equation is:

y = -3x+1

Answer:

Option C

8 0
3 years ago
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