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bixtya [17]
3 years ago
7

A chemist has 200mL of a 10% sucrose solution. She adds x mL of a 40% sucrose solution. The chemist needs the concentration of t

he final mixture to be 30% how many milliliters of the 40% solution should she add to the 10% solution to get this concentration ?
Mathematics
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

566

Step-by-step explanation:

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Is 1.2 less than or higher than 1.5
Olenka [21]

1.2 is less than 1.5

If you cancel out 1 from both numbers you're left with .2 and .5

Multiply both by 10 and get 2 and 5.

Obviously 2 is less than 5.

4 0
3 years ago
Determine the intercepts of the line that passes through the following points (10,20) (15,12) (20,4)
Novay_Z [31]

Answer:

x intercept is (45/2,0)

y intercept is (0,-36)

Step-by-step explanation:

Slope intercept form of equation of line is

y=mx+b where m is the slope and b is the y intercept

use any two points to find the slope

(10,20) (15,12)

slope = \frac{y_2-y_1}{x_2-x_1} =\frac{12-20}{15- 10} = \frac{-8}{5}

m = -8/5

now we find out b using (10,20)

20 = \frac{-8}{5} (10)+b

20 = -16 + b

add 16 on both sides , so b = 36

b is the y intercept , so y intercept is (0,-36)

Now we find x  intercept

equation of line is y=mx+b that is y = \frac{-8}{5}x+36

To find x intercept plug in 0 for y

0= \frac{-8}{5}x+36

subtract 36 on both sides

-36= \frac{-8}{5}x

Multiply by -5/8 on both sides

-36*\frac{-5}{8}=x

\frac{45}{2}=x

x intercept is (45/2,0)


5 0
4 years ago
2.2.4 quiz exterior and remote interior angles PLEASEEEE
Sloan [31]

Answer:

Option (A)

Step-by-step explanation:

By applying the theorem angle theorem in the given triangle,

Sum of exterior angle of a triangle is equal to the sum of opposite interior angles of the triangle.

Therefore, 130° = y° + y°

130° = 2y°

y = \frac{130}{2}

y = 65°

Therefore, measure of interior angles 'y' of the given triangle will be 65°.

Option (A) will be the answer.

8 0
4 years ago
Numbers that are divisible by 2,4,6,8,10 have to be.
hram777 [196]
The answer is two...
7 0
4 years ago
Read 2 more answers
Solve for x if x = -3. 2x+3
umka21 [38]

Answer:

-3

Step-by-step explanation:

  1. Plug in the value of x: 2(-3) + 3
  2. 2(-3) = 2 × -3 = -6
  3. Plug -6 in: -6 + 3
  4. -6 + 3 = -3

I hope this helps!

8 0
3 years ago
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