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2 years ago

OMG SUPER HARD QUESTION I DONT KNOW

Mathematics

1 answer:

zubka84 [21]2 years ago

6 0

Answer:

1 apple

Step-by-step explanation:

unless you are a psycho who counts the one he ate as still in his possession,

therefore 2 - 1 = 1

hope this helps:)

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A chemist mixes a 25 % acid solution with a 45% acid solution to make 600 ml of a 30% acid solution. How much of each type of so

PilotLPTM [1.2K]

Answer:

25 % acid solution = 450ml

45% acid solution = 150ml

Step-by-step explanation:

Let

x = 25 % acid solution

y = 45% acid solution

x + y = 600

.25x + .45y = .30(600)

x + y = 600 (1)

.25x + .45y = 180 (2)

From (1)

x = 600 - y

Substitute x = 600 - y into (2)

.25x + .45y = 180

.25(600 - y) + .45y = 180

150 - .25y + .45y = 180

150 + .20y = 180

.20y = 180 - 150

.20y = 30

Divide both sides by .20

y = 30/0.20

= 150

y = 150ml

Substitute y = 150 into

x + y = 600

x + 150 = 600

x = 600 - 150

= 450

x = 450ml

25 % acid solution = 450ml

45% acid solution = 150ml

6 0

2 years ago

The perimeter of a rhombus is 180 cm and one of its diagonals is 72 cm. Find the length of the other diagonal and area of the rh

rewona [7]

Hi there! :)

Answer:

Length of the second diagonal: 54 cm

Area of the rhombus: 1,944 cm²

Step-by-step explanation:

1) To find the value of the second diagonal, you first need to know some important properties of rhombuses:

Since the perimeter is 180, and by definition a rhombus has four congruent sides (of equal length), each side length of the rhombus is equal to 45.

The diagonals of rhombuses also form four right triangles, with hypotenuses equal to the side length of the rhombus and legs equal to half the lengths of the diagonals. In this case one hypotenuse would be equal to 45 and one leg would be equal to 36 (72 ÷ 2 = 36).

We can therefore use the Pythagorean Theorem to solve for one-half of the unknown diagonal:

c² = a² + b² → Where "c" is the hypotenus & "a" and "b" are the two other sides.

45² = 36² + b² → Where "b" is the half of the unknown diagonal.

We can now solve this equation for "b":

45² = 36² + b²

45² = 2,025

36² = 1,296

2,025 = 1,296 + b²

Subtract "1,296" from each side of the equation → 2,025 - 1,296 = 729

729 = b²

Square root on each side of the equation → √729 = 27

27 = b

Since "b" represents half of the unknown diagonal, we need to multiply by 2 to find the full length of the diagonal:

27 × 2 = 54 ⇒ Length of the other diagonal.

2) To find the area of the rhombus, you need to multiply the length of the 2 diagonals and divide the answer by 2:

(72 × 54) ÷ 2 = A

Multiply "72" & "54" together → 72 × 54 = 3,888

3,888 ÷ 2 = A

1,944 = A

There you go! I really hope this helped, if there's anything just let me know! :)

3 0

3 years ago

Henry draws an obtuse triangle how many obtuse angles does Henry's triangle have?

drek231 [11]

it would only have 1 obtuse angle

4 0

3 years ago

Read 2 more answers

What is 67 x 578 divide by 5?

MA_775_DIABLO [31]

Answer:

7745.2

Step-by-step explanation:

you need to multiply 67 by 578 which is 38726. then you divide it by 5. In short, you can just use calculator or you can use scratch paper.\

3 0

3 years ago

Read 2 more answers

Hat is the solution to the system of equations?

Dima020 [189]

Answer:

(–19, 55)

Step-by-step explanation:

y = –3x – 2 equation 1

5x + 2y = 15 equation 2

using equation 1 in equation 2 we have:

5x + 2(–3x – 2) = 15

5x –6x – 4 = 15

-x = 15+4

x=-19

using equation 1:

y = -3(-19)- 2

y= 57-2

y= 55

5 0

3 years ago