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Lerok [7]
2 years ago
8

The total weight of samsiah and Julia is twice the weight of Mary. if samsiah weighs 54 kg and Mary weighs 60 kg, find the actua

l weight of julia​
Mathematics
1 answer:
Wewaii [24]2 years ago
4 0

s + j = 2m

s = 54

m = 60

54 + j = 120

j = 120 - 54

j = 66

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15. • Solve the simultaneous equations
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Answer:
B. 1 and -2
Explanation:
First, add up the equations:
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4y=4
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5 0
3 years ago
2x^2+3x+5=0<br> what are all the complex solutions?<br>please i need help!!!
vesna_86 [32]
You'll want to use the quadratic formula:

-b (+/-) sqrt(b^2 - 4ac), all divided by 2a.

Under the square root you'll get:

-11

remember that the square root of -1 is i.

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4 0
3 years ago
Read 2 more answers
there is a loss of 20% by selling a photocopy machine for rs 60000 at what price will the machine be sold to gain 12% find it
notsponge [240]

Answer:

Step-by-step explanation:

Loss is 20%

S.P=Rs60000

C.P=S.P*100/100-loss%

=60000*100/80=Rs75000

So he brought is at Rs75000

Now he wants 12% profit

So

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6 0
4 years ago
Sondra gets $75 a week, plus 10 percent of sales.
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5 0
2 years ago
12 (2 -2)+32 = (x +6) +2
Anestetic [448]

Answer: x = 24

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.

<u>Step 1:</u><u> </u><u><em>Remove parentheses.</em></u>

12 (2 − 2) + 32 = x + 6 + 2

<u>Step 2:</u><u> </u><u><em>Simplify 2 − 2 to 0.</em></u>

12 × 0 + 32 = x  + 6 + 2

<u>Step 3:</u><u> </u><u><em>Simplify 12 × 0 to 0.</em></u>

0 + 32 = x +  6 + 2

<u>Step 4:</u><u> </u><u><em>Simplify 0 + 32 to 32.</em></u><em> </em>

32 = x + 6 + 2

<u>Step 5:</u><u> </u>x<u><em> + 6 + 2 to </em></u>x<u><em> + 8.</em></u>

32 = x + 8

<u>Step 6:</u><u> Subtract 8 from both sides.</u>

32 − 8 = x

<u>Step 7:</u><u> Simplify 32 − 8 to 24.</u>

24 = x

<u>Step 8:</u><u> </u><u><em>Switch sides.</em></u>

x = 24

~I hope I helped you! :)~

8 0
3 years ago
Read 2 more answers
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