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scoundrel [369]
3 years ago
5

Barrel A and Barrel B are the same size. Barrel A is filled with a solution that is 12% ethanol. The portion of ethanol in the s

olution that fills Barrel B is 0.3. How many times more ethanol is in Barrel B than Barrel A???? id k
Mathematics
1 answer:
mario62 [17]3 years ago
8 0

Answer:

the answer is 12 because it sythsizes from the other part of the problem

Step-by-step explanation:

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Find the product. 7/10 X 3/6
tiny-mole [99]
7 . 3
--- × ------
10. . 6


= 21
--------
60

= 7/20
4 0
3 years ago
The sets D and J are given below.
sveta [45]
D n J = {7,8} (intersection)

Values that satisfy both sets.

D u J = {-1,1,4,5,7,8} (union)

All values present in both sets.
3 0
4 years ago
40 POINTS<br> Can anyone answer question 8 only e ii and iii please
Nutka1998 [239]

Answer:

ii)  c = 4    iii) c = 8

Step-by-step explanation:

A = x axis intercept = 1/2 c

B = y axis intercept = c

ii)  Area of a triangle = 1/2 x base x height

                               4 = 1/2 x (1/2)c x c

                              c² = 16

                                c = 4

iii)  2√5 will be the hypotenuse of a right-angled triangle with base 1/4 c and height 1/2 c

(2√5)² = (1/4 c)² + (1/2 c)²

      20 = 1/16 c² + 1/4 c²

      20 = 5/16 c²

         c² = 64

          c = 8

6 0
3 years ago
Jenny planned to solve 2/3 of her homework problems on Saturday. However, she got home late and had less time than planned. As a
enyata [817]

Answer:

  • 48 problems

Step-by-step explanation:

Jenny planned to solve 2/3 of homework

On Saturday she solved 28 problems, which is 7/8 of the planned number

<u>Planned number is:</u>

  • 28 : 7/8 = 28 * 8/7 = 32 problems

<u>Jenny's homework was:</u>

  • 32 : 2/3 = 32 * 3/2 = 48 problems
7 0
3 years ago
Read 2 more answers
What is the total surface area of the prism shown below
Westkost [7]
The prism has 6 faces.
Each pair of opposite faces is congruent.

The front and back faces are rectangles that measure 10 cm by 5 cm.
The right and left faces are rectangles that measure 5 cm by 3 cm.
The top and bottom faces are rectangles that measure 10 cm by 3 cm.

Now we find the area of each rectangle.

The front and back faces are rectangles that measure 10 cm by 5 cm.
Each face:
A = 10 cm * 5 cm + 50 cm^2

The right and left faces are rectangles that measure 5 cm by 3 cm.
Each face:
A = 5 cm * 3 cm = 15 cm^2

The top and bottom faces are rectangles that measure 10 cm by 3 cm.
Each face:
A = 10 cm * 3 cm = 30 cm^2

There are two faces shaped like each rectangle above, so we multiply each rectangle's area by 2, and we add them together.

total surface area = 2 * 50 cm^2 + 2 * 15 cm^2 + 2 * 30 cm^2

total surface area = 100 cm^2 + 30 cm^2 + 60 cm^2

total surface area = 190 cm^2
5 0
4 years ago
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