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serious [3.7K]
3 years ago
8

Please help I’ll mark brain thingy

Mathematics
2 answers:
Alex17521 [72]3 years ago
8 0

Answer:

60

Step-by-step explanation:

y = 8

8y - 4

8(8) - 4

  = 64 - 4

  = 60

adell [148]3 years ago
5 0

Answer: 60

Step-by-step explanation:

8y-4 and y = 8

Plug in 8

8(8) - 4

64 - 4

60

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You purchased concentrated cleaner that must be diluted (watered down)
abruzzese [7]

Answer:

The volume of the concentrated 80 gallons mixture is 20 gallons

The volume of water in the 80 gallons mixture is 60 gallons

Step-by-step explanation:

The given parameters are;

The content of Container A = The cleaner

The concentration of the cleaner = 20% solution

The content of Container B = Pure water

The concentration of the desired solution = 5%

The volume of the required solution = 80 gallons

Let x represent the volume of the concentrated solution and y represent the volume of water in the 80 gallons mixture

Therefore, we have;

20/100 × x + y×0 = 5/100×80

x + y = 80

y = 80 - x

20/100 × x + (80 - x)×0 = 5/100×80

0.2·x = 4

x = 4/0.2 = 20

x = 20 gallons

y = 80 - x = 80 - 20 = 60

y = 60 gallons

The volume of the concentrated solution (80 gallons mixture) = x = 20 gallons

The volume of water in the 80 gallons mixture = y = 60 gallons.

8 0
2 years ago
A cake recipe calls for 1 cup of oil. Jean needs to make 12 cakes for her school bake sale. How many quarts of oil will Jean nee
kipiarov [429]
Hey there,

Each cake recipe would call for \boxed{1} cup of oil.

So if she is going to make 12 cakes, this would include that she
would need to use 12 cups of oil.

\boxed{12} would be your answer!

Hope this helps.
~Jurgen
7 0
3 years ago
Read 2 more answers
Karen wanted to measure the height of her school's flagpole. She placed a mirror on the ground 44 ft from the flagpole, and then
Shalnov [3]

Answer:140

Step-by-step explanation:

4 0
3 years ago
Help me with my last question plz
fomenos

Answer:

57

Step-by-step explanation:

Angle IHK and JKH are alternate angles.

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3 0
3 years ago
HELP The minute hand of a clock is 5 inches long. to the the nearest tenth of an inch, how far does the tip of the minute hand t
faltersainse [42]

Answer:

18.326 inches

Step-by-step explanation:

The question is basically asking us to find the arc length that the tip of the minute hand travels. The formula for an arc length is S=θr. So we need th find the angle that the minute hand passes through. We know that there is 360 degrees in a cicle and there is 12 stops around a clock, so divide 360 by 12 to find the degrees the minute hand travels every 5 minutes. We ge that every 5 minutes the hand travels 30 degrees, and 35 minutes is 7*5 so we multiple 30*7 to find the angular displacement, and we get 210 degrees. This equation uses radians though so we have to convert, which can be done doing \frac{210}{1} *\frac{\pi }{180}, and we ge that θ is \frac{7\pi }{6} so (\frac{7\pi }{6})(5)= 18.326 inches

3 0
2 years ago
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