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MrRa [10]
3 years ago
12

What is the value of y when x = 6? -3x + 9y = 18

Mathematics
1 answer:
solniwko [45]3 years ago
5 0

y equals negative 3 so the answer is -3

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Monica sells lemonade over the summer and uses conical paper cups to serve
Alina [70]

Answer: She would need 206 paper cups.

Step-by-step explanation: First of all, Monica has a 10-gallon container full of lemonade and this translates into 37850 cubic centimetres volume of lemonade. The conversion rate has been provided as one gallon equals 3785 cubic centimetres, therefore ten gallons would be 3785 times ten which gives you 37,850 cubic centimetres of lemonade.

Each cone shaped paper cup has a diameter measuring 8 centimetres and 11 centimetres in height. The radius of the cone shaped cup therefore is 4 centimetres (radius equals diameter divided by two). The volume of each cup therefore is given as;

Volume of a cone = (πr²h)/3

Volume of a cone = (3.14 * 4² * 11)/3

Volume of a cone = 552.64/3

Volume of a cone = 184.2

If each cone could hold 184 cubic centimetres of lemonade, then the entire ten gallons would require the following number of cone shaped cups;

Number of cups = Total volume/Volume of a cup

Number of cups = 37850/184.2

Number of cups = 205.48

Rounded to the nearest whole number, this becomes

Number of cups ≈ 206

Therefore Monica would need 206 cone shaped paper cups to empty the entire 10 gallons of lemonade.

4 0
4 years ago
On 8(x - 2) + 3 = -61?
DochEvi [55]

Answer:

Hey there!

8(x-2)+3=-61

8(x-2)=-64

x-2=-8

x=-6

Let  me know if this helps :)

3 0
3 years ago
Read 2 more answers
Adding proper fractions .. 10/12+6/12=need help
mixas84 [53]
Adding fractions is easy when you get the rules...
10/12 + 6/12...
add the numerator which is the top, and keep the denominator which is the bottom.
10/12 +6/12 = 16/12
change that into a mixed number 
16/12 = 1 4/12 which is simplified to 1 1/3
hope this helps

3 0
3 years ago
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Ashlyn and Brooke went to the arcade with $12. They bought 4 bottles of water, which cost $1.50 each. They each bought a sticker
ANEK [815]

Answer:

not good in maths

Step-by-step explanation:

5 0
3 years ago
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Solve the equation of 4y=20 then find the value of y?
snow_tiger [21]

Answer:

y=5

Step-by-step explanation:

4 0
3 years ago
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