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tatiyna
3 years ago
8

Jane is making a healthy snack of trail mix to sell as part of a fundraiser for the school hiking club. The mixture will have 2.

5 times as many kilograms of raisins as of sunflower seeds. Sunflower seeds cost $12/kg and raisins cost $6/kg. If Jane has $108 dollars to spend, what mass of sunflower seeds and of raisins should she buy?
I have one formula, which is 12s + 6r = 108 but I need one more equation, plus how to solve it. Thank you!!!!
Mathematics
1 answer:
Ede4ka [16]3 years ago
5 0
So the other equation is
2.5 times as many kilos of rasins than sunflower seeds or
rasin kilos=2.5 times sunflower seed kilos
r=2.5s


the 2 equations are
12s+6r=108 and
r=2.5s
you can simplify the first equation (that sometimes helps)
undistribute the 6 from both left side
6(2s+r)=108
divide both sides by 6
2s+r=18

now use r=2.5s and subsitute 2.5s for r in first equation
2s+2.5s=18
4.5s=18
divide both sides by 4.5
s=4
subsitute
r=2.5 times s
s=4
r=2.5 times 4
r=10


rasins=10 kilos
sunflower seeds=4 kilos
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Help me on this please
steposvetlana [31]
I got you hun!

27= 3x is the equation you will need

27 is the total the coach needs making it the total. Since each pack comes with 3 you will mutiply the amount of pack, or x, by 3. 

X=9 

we know this because if you divide 3 by 27 to get it on the other side we get 9. This means the coach needs to buy 9 packs of baseballs for the team.

27=3(9) 

Hope this helps!


5 0
3 years ago
3. Find two possible lengths for CD if C, D, and E
Kaylis [27]

Given :

C, D, and E  are col-linear, CE = 15.8 centimetres, and DE=  3.5 centimetres.

To Find :

Two possible lengths for CD.

Solution :

Their are two cases :

1)

When D is in between C and E .

.                   .           .

C                  D          E

Here, CD = CE - DE

CD = 15.8 - 3.5 cm

CD = 12.3 cm

2)

When E is in between D and C.

.       .                .

D      E              C

Here, CD = CE + DE

CD = 15.8 + 3.5 cm

CD = 19.3 cm

Hence, this is the required solution.

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3 years ago
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andre [41]

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Step-by-step explanation: hope this helps!!

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2 years ago
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using the ' factor theorem '

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6 0
3 years ago
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