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densk [106]
3 years ago
15

ASAP

Mathematics
1 answer:
Ulleksa [173]3 years ago
8 0

Answer:

C. (7, –3)

Step-by-step explanation:

5x+6y=17

-10x-9y=-43

Multiply the first equation by 2

2(5x+6y)=17*2

10x +12y = 34

Add this equation to the second equation to eliminate x

-10x-9y=-43

10x +12y = 34

---------------------

   3y = -9

Divide by 3

3y/3 = -9/3

y = -3

Now we need to find x

5x+6y = 17

5x +6(-3) = 17

5x-18 = 17

Add 18 to each side

5x-18+18 =17+18

5x =35

Divide by 5

5x/5 = 35/5

x =7

(7,-3)

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Jason = 5 hrs

1/3x + 1/5x = 1/x

3x x 5x = 15 —> 3x/15 + 5x/15 = 15/15

3x + 5x = 8x —> 8x/15 = 1.875 = 1 7/8 hrs
7 0
3 years ago
What is 5,384,981 to the nearest ten-thousands place?​
Harlamova29_29 [7]

Answer:

5,380,000

Step-by-step explanation:

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3 years ago
Solve 4(x + 1) = 4x + 4. Would it be No solution? Or all real numbers?
arsen [322]
Pick any number. Write it in place of 'x'. If the result is a true statement, then your number is a solution of the equation. Do it again with a different number. Then do it again. Does it matter what your number is ?
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3 years ago
When simplified, what is the exponential<br>form of the following expression 3⁴.35.36​
matrenka [14]

Answer:

3^4*3^5*3^6 = 3^{15}

Step-by-step explanation:

Given

3^4*3^5*3^6

Required

Simplify

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a^m * a^n = a^{m+n}

So:

3^4*3^5*3^6 = 3^{4+5+6}

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6 0
3 years ago
Does anyone know how to do this?
mr_godi [17]

Answer:

√45

Step-by-step explanation:

We know that according to the Pythagorean theory:

a²+b²=c²

I am pretty sure that a is 3 and b is 6. C remains unknown.

3 squared is nine and 6 squared is thirty six. 36+9 is 45.

Since the question says you should leave the answer in radical form, the answer is

c²=45

√c²=√45

This book will really help in Geometry and you can get it anywhere.

I hope this helps!

~°LampteyJ

8 0
3 years ago
Read 2 more answers
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