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daser333 [38]
3 years ago
9

HELP worth 20 pts :Which are equations? Select all that apply

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0

Answer:

12 = 3/4x, x - 4.8 = 9, and x - 3.1x = 14.7 + 12

Step-by-step explanation:

xeze [42]3 years ago
4 0

Answer:

12 = 3/4x, x - 4.8 = 9, and x - 3.1x = 14.7 + 12 are all equations because you have an equal sign that has you solve for each side and you can solve for the variable, unlike with the other ones you can't solve for the variable.

Step-by-step explanation:

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The base of the pyramid is a regular hexagon. Find the volume of the pyramid. Round your answer to the nearest tenth.
alexandr402 [8]

Answer:

216.5

Step-by-step explanation:

Pyramid volume=(area of the base)*(height)/3

Pyramid volume=(area of hexagon with side 5)*(height)/3

Area of hexagon is 3*sqrt(3)*(side)^2/2=75*sqrt(3)/2

Pyramid volume=10*(75*sqrt(3))/(2*3)=216.5

7 0
3 years ago
how many pounds of candy worth $12 per pound should be mixed with candy costing $19 per pound to produce a 70 pound mixture that
sweet-ann [11.9K]

Answer:

40 pounds

Step-by-step explanation:

Given: Cost of a candy (c_1)= \$ 12 per pound

           Cost of candy (c_2) = \$ 19\ per\ pound

           Total amount of mixture of be produced = 70\ pound

           Selling price of mixture = \$ 15 \ per\ pound

Let´s x be the amount of c_1 to be mixed in the mixture.

∴ Cost of c_1 in the mixture = 12x

Next, Cost of c_2 in the mixture = (70 - x)\times 19

And we know the cost of final mixture = 70 \times 15 = 1050

Now, putting all the value in the equation

⇒ 12x + 19 \times (70 - x) = 1050

⇒ 1330 - 7x = 1050

⇒ -7x = -280

∴ x = 40\ pound

∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.

6 0
3 years ago
Which measurement is most accurate to describe the amount a coffee cup could hold 350 mL 2.4 L 25 mL or 0.8 L
katrin [286]
The answer would probably be 25mL
4 0
3 years ago
Read 2 more answers
maria purchased a new jacket for 78.12. the orginal price of the jacket was discounted 20% and Maria had to pay 5% sales tax. wh
prohojiy [21]
20 percent of the discount minus 5 percent sales tax equals to 15 percent.
know calculate the 15 percentage out of 78,12 so x on 78,12 equals to 20 on 100 so 78,12 equals to 100 percent and x equals to 15 percent so 78,12 times 15 divided by 100 is 15 percent or the number you found discount and and sales tax combined know you substact 15 percent out of your original price.


7 0
3 years ago
WILL GIVE BRAINLIEST AND 20 POINTS!<br> Find m∠AOC given x = 167° and y = 20°.
pentagon [3]

Answer:

187*

Step-by-step explanation:

167 plus 20 is 187

hope this helps

6 0
3 years ago
Read 2 more answers
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