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SSSSS [86.1K]
3 years ago
8

Gabriel is making a mixture of compost and soil to use for a special plant. He wants his final mix to be 2 parts compost to 6 pa

rts potting soil. He wants to end up with 10 kilograms of mix.
how many kilograms of compost should Gabriel use?
​
Mathematics
2 answers:
nata0808 [166]3 years ago
8 0

Answer:

5/2 kg

Step-by-step explanation:

The ratio here is 2:6.  2 plus 6 is 8.

Then (2/8) times 10 kg represents the amount of compost needed; that comes to 20/8 kg, or 10/4 kg, or 5/2 kg.

FromTheMoon [43]3 years ago
6 0

Answer:

The answer is 1

c=the amount of compost and 10-c= the amount of potting soil.

Step-by-step explanation:

2/10=c/6-c

10c=2(6-c)

10c=12-2c

12c=12

C=1

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What is 8 3/4 as a decimal? Please I need some help real quick !!!
Rus_ich [418]

Answer:

8.75

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
4. A map of an amusement park is shown on a coordinate plane, where each square
Zielflug [23.3K]

Using cartesian coordinates concepts such as midpoint and distance between two points, it is found that:

  • The location point of the Ferris wheel is (15,24).
  • They need to walk 20 units.
  • The coordinates of the hotdog stand are (23,8).

  • Water ride is at point (3,8).
  • Roller coaster is at point (27,40).
  • The Ferris wheel is at the midpoint of the water ride and the roller coaster, thus it's coordinates are the <u>mean of their coordinates.</u>

x = \frac{3 + 27}{2} = 15

y = \frac{8 + 40}{2} = 24

The location point of the Ferris wheel is (15,24).

The distance between two points, (x_1,y_1) and (x_2,y_2) is given by:

D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Here, Tiffany and her sister are at (15,24) while their parents are at (3,8). Thus, their distance is:

D = \sqrt{(15 - 3)^2 + (24 - 8)^2} = 20

They need to walk 20 units.

  • Hotdog stand is directly east of the water ride, thus, it has the <u>same y-coordinate, while the x-coordinate is increased</u>.
  • The distance is of 20 units, thus:

(3 + 20, 8) = (23,8)

The coordinates of the hotdog stand are (23,8).

A similar problem is given at brainly.com/question/24352869

6 0
3 years ago
2) Evaluate the given numerical expression.<br><br> A) 9<br> B) 12<br> C) 14<br> D) 21
eduard

Answer:

  • \boxed{\sf{14}}

Step-by-step explanation:

\boxed{\underline{\text{ORDER OF OPERATIONS:}}}

Use the order of operations.

Note: PEMDAS or BODMAS stands for:

<u>PEMDAS</u>

  • <u>Parentheses</u>
  • <u>Exponents</u>
  • <u>Multiply</u>
  • <u>Divide</u>
  • <u>Add</u>
  • <u>Subtract</u>

<u>BODMAS</u>

  • <u>Brackets</u>
  • <u>Order</u>
  • <u>Divide</u>
  • <u>Add</u>
  • <u>Subtract</u>

<u>First, do parentheses.</u>

3+6*(5+4)÷3-7

(5+4)=9

\Longrightarrow: \sf{3+6* 9\div 3-7}

<u>Do multiply and divide.</u>

6*9=54

54/3=18

<u>Then, rewrite the problem down.</u>

\Longrightarrow: \sf{3+18-7}

<u>Add.</u>

\sf{3+18=21}

\sf{21-7=\boxed{\sf{14}}

\Longrightarrow: \boxed{\sf{14}}

  • <u>Therefore, the correct answer is "C. 14".</u>

I hope this helps, let me know if you have any questions.

8 0
2 years ago
Combine the like terms to create an equivalent expression: \large{-k-(-8k)}−k−(−8k)minus, k, minus, (, minus, 8, k, )
PIT_PIT [208]

Answer:

7k

Step-by-step explanation:

The given expression is

-k-(-8k)

We need to find the simplified form of the given expression.

Like terms: The terms which have same variables of same degree and known as like terms. For example: 2x and 4x are like terms.

The given expression can be rewritten as

-k+8k

On combining like terms we get

(-1+8)k

7k

Therefore, the equivalent expression of the given expression is 7k.

3 0
4 years ago
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