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N76 [4]
4 years ago
6

Two business partners, Alan and Rob, invested money in their business at a ratio of 6 to 7. Bob invested the greater amount. The

amount invested was $390. How much did each partner invest?
Mathematics
1 answer:
Verdich [7]4 years ago
4 0

Answer:

180 Alan, 210 Rob

Step-by-step explanation:

6+7= 13

390÷13= 30

30×6=180 =Alan

30××7=210 =Rob

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11x + 2y = 68 & 5x + y = 13
matrenka [14]

Answer:

i hope its correct

Step-by-step explanation:

11x + 2y=68 ------------1

5x+y=13 ------------2

y= 13-5x. ------------3

put 3 into 1

11x +2(13-5x) =68

11x +26 -10x =68

x=42

put x =42 into 2

5(42) +y =13

210+y=13

y=13-210

y=197

4 0
3 years ago
Workout the length of AB. Give your answers to 3 significant figures.
german

Answer:

AB ≈ 6.71

Step-by-step explanation:

Calculate the length using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = A (- 1, 6) and (x₂, y₂ ) = B (5, 3)

AB = \sqrt{(5-(-1))^2+(3-6)^2}

    = \sqrt{(5+1)^2+(-3)^2}

    = \sqrt{6^2+9}

    = \sqrt{36+9}

    = \sqrt{45}

    ≈ 6.71 ( to 3 significant figures )

8 0
3 years ago
PLEASE ANSWER QUICKLY!
raketka [301]

Answer:

last one

Step-by-step explanation:

when u divide 3 and 4 is 0.75 and the only one the equals to that is 15/20

3 0
3 years ago
Read 2 more answers
At a local print shop, 14 copies can be made for $4. At this rate, how much would it cost to make 63 copies?
Illusion [34]
It would cost 18$ ! hope this helps :)
7 0
3 years ago
Read 2 more answers
Prove that quadrilateral ABCD with the vertices A (2,1), B (1,3), C (-5,0) D (-4,-2) is a rectangle. Graph the rectangle and the
Furkat [3]

Answer:

Just find the distance of the vertices of the quadrilateral ( such as : AB, BC, CD DA )by using distance formula...

Then if opposite sides of quadrilateral is equal then it is rectangle .....

hope you understand...

7 0
3 years ago
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