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Ganezh [65]
3 years ago
14

PLEASE HELP!!!!!!!!! Solve the system using elimination method.

Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

The answer is (6,12)

107x= 642

x=6

7•6 +2y=66

y= 12

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10. Which inverse operation would be used to verify the following equation? 54 ÷ 9 = 6 A. 9 − 6 = 3 B. 9 + 6 = 15 C. 54 ÷ 6 = 9
Lana71 [14]
The first thing we have is the following equation:
 54 ÷ 9 = 6
 Let's multiply both sides by 9 to not alter the equality:
 (54 ÷ 9) * 9 = 6 * 9
 Rewriting we have:
 54 = 6 * 9
 Answer:
 
An inverse operation that would be used to verify the equation is:
 
D. 9 × 6 = 54
4 0
3 years ago
Read 2 more answers
Factorise xsquared+13x+12
tatiyna

Answer:

Ok

Step-by-step explanation:

5 0
4 years ago
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There is a total of 63 bikes if the ratio of blue to black bikes is 4 to 5 how many are blue
DedPeter [7]
<span>Since the given ratio is blue:black is 4:5
4+5=9

4/9= 0.44 ~ 44%
5/9= 0.56 ~ 56%

Since there are a total of 63 bikes and 44% of these bikes are blue we just multiply 44% with the total number of bikes.

Solution:
1. 0.44 x 63 = 28
2. 0.56 x 63 = 35

Conclusively, there are 28 bikes that are colored blue.</span>
4 0
3 years ago
What minus 1/2 equals 3/4
dimaraw [331]

Answer:

W =1 1/4Step-by-step explanation:

Let W = what

W - 1/2 = 3/4

Add 1/2 to each side

W -1/2 +1/2 = 3/4+1/2

W = 3/4+1/2

Getting a common denominator of 4

W =3/4+1/2*2/2

W =3/4 +2/4

W = 5/4

Changing to a mixed number

W = 4/4 +1/4

W = 1 +1/4

W =1 1/4

6 0
4 years ago
HELP!!!! 3. Find the x-intercept of the graph of the linear equation y = 2x + 4.
Naily [24]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

(-2, 0)

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

\text{Substitute in \textbf{0} for } y \text{ and solve for } x\text{.}\\-------------------\\y = 2x+4\\-------------------\\\rightarrow 0 = 2x +4\\\\\rightarrow 2x + 4 = 0\\\\\rightarrow 2x +4 - 4 = 0 - 4\\\\\rightarrow 2x = -4\\\\\rightarrow\frac{2x=-4}{2}\\\\\rightarrow \boxed{x=-2}

⸻⸻⸻⸻

\text{The \textbf{x-intercept} of the given equation is: } (-2, 0)

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

6 0
3 years ago
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