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Komok [63]
3 years ago
9

6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers?

Mathematics
1 answer:
nevsk [136]3 years ago
6 0

Answer:

the answer is D

Step-by-step explanation:

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If there is are 95 g of fat in 16 oz of ground beef, how much fat is in 3 oz of beef?
Furkat [3]
95\ g\ of\ fat\ in\ 16\ oz\ of\ ground\ beef\\\\
x\ g\ of\ fat\ in\ 3\ oz\ of\ ground\ beef\\\\ making\ proportion\\\\
95-16\\x-3\\\\ cross\ multiplication\\\\
95*3=16x\\\\ 285=16x\ \ \ | divide\ by\ 16\\\\ x= 17,8125\\\\
17,8125\ g\ of\ fat\ are\ in\ 3\ oz\ of\ beef.


5 0
4 years ago
determine if the given point is a solution of the given system of linear equations y=3× + 6 y= -2× + 9 (3,3) ​
Anna11 [10]

Answer:

The point (3, 3) is not a solution of the first equation, therefore is not a solution of the given system of equations.

Step-by-step explanation:

y=3x+6\ and\ y=-2x+9

(3,\ 3)\to\text{put x = 3 and y = 3 to the equations of the functions}\\\text{and  check the equality.}\\\\y=3x+6\\\\3=3(3)+6\\3=9+6\\3=15\qquad\text{FALSE!}

3 0
3 years ago
Molly is baking oatmeal raisin cookies and chocolate chip cookies. She has no more than 10 cups of flour. A batch of oatmeal rai
IrinaVladis [17]

Answer:

  d.  3/2r+2c ≤ 10

Step-by-step explanation:

The amount of flour Molly needs for r batches of oatmeal raisin cookies is ...

  3/2r

The amount of flour Molly needs for c batches of chocolate chip cookies is ...

  2c

The total amount of flour Molly can use for cookies cannot exceed the amount available, so ...

  3/2r + 2c ≤ 10

_____

<em>Comment on the question</em>

The wording is a bit odd. It asks for the amount of flour available—after it tells you the amount available is 10 cups. (I might write that as <em>f ≤ 10</em>.) The answer choices clearly suggest that what is wanted is a representation of the possible mix of batches of cookies for which Molly could use the available flour. IMO, this is another instance of poor editing of math problem wording.

3 0
3 years ago
Solve for x:<br> 2(5 – 3x) &lt; x - 4(3 - x)
Setler [38]

Answer: x > 2

Step-by-step explanation: PLEASE GIVE BRAINLIEST HELPS A LOT

6 0
3 years ago
PLEASE HELP ME OUT!!
Zielflug [23.3K]

Answer:

  (d)  1/√(s³)

Step-by-step explanation:

The expression can be simplified by making use of the rules of exponents.

<h3>Rules of exponents</h3>

The relevant rules are ...

  a^b\cdot a^c=a^{b+c}\\\\(a^b)^c=a^{bc}\\\\\left(\dfrac{a}{b}\right)^c=\dfrac{a^c}{b^c}\\\\a^{b/c}=\sqrt[c]{a^b}

<h3>Application</h3>

The given expression can be simplified by applying these rules.

  \left(\dfrac{1}{s^{-1}\cdot s^8}\right)^{3/14}=\dfrac{1}{(s^{-1+8})^{3/14}}=\dfrac{1}{s^{7\cdot3/14}}=\dfrac{1}{s^{3/2}}=\boxed{\dfrac{1}{\sqrt{s^3}}}

3 0
2 years ago
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