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Semmy [17]
3 years ago
6

Simplify the expression -9x-8+4x+7

Mathematics
2 answers:
seropon [69]3 years ago
7 0

Answer:

-5x-1

Step-by-step explanation:

First combine like terms

-9x-8+4x+7 combine -9 and 4

-5x-8+7 then combine -8 and 7

-5x-1

castortr0y [4]3 years ago
4 0

Answer: 5x - (-1)

Step-by-step explanation:

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A storage pod has a rectangular floor that measures 21 feet by 9 feet and a flat ceiling that is 7 feet above the floor. Find th
mario62 [17]

Answer:

  • area: 189 ft²
  • volume: 1323 ft³

Step-by-step explanation:

The area of the rectangular floor is the product of its length and width:

  A = LW = (21 ft)(9 ft) = 189 ft²

The volume of the pod is the product of that floor area and the height:

  V = Bh = (189 ft²)(7 ft) = 1323 ft³

The area of the floor is 189 ft²; the volume of the pod is 1323 ft³.

4 0
3 years ago
I have 30 coins consisting of nickels, dimes and quarters. The total value of the coins is $4.60. there are two more dimes than
aleksklad [387]

If you have 1 nickle, how many quarters do you have? (3)

If you have 4 nickles, you have 3 times as many quarters (3)(4) = 12

If you have n nickles, then you have 3n quarters so 3n = q, you have  a slightly different equation.

 

If you fix this equation and use substitution like you did, you can get the right answer; you can also try to work in the other information that you have - converting all coin values to cents

    5n + 10d + 25q = 460

8 0
3 years ago
Geometry- Solve the portion. Question#4<br>​
kotykmax [81]

Answer:

d=18

Step-by-step explanation:

<h3>First let's write our equation</h3><h3 /><h3>\frac{6}{d-6} =\frac{4}{8}</h3><h3 /><h3>Reduce</h3>

<em>Definition -  </em><em>reduction refers to the rewriting of an expression into a simpler form</em>

<h3 />

We can reduce \frac{4}{8} to \frac{1}{2}

Our equation is now \frac{6}{d-6} =\frac{1}{2}

Now we can cross multiply

<em>Definition - </em><em>given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.</em>

d-6=12

<h3>Add</h3>

We are adding because we want our variable to be on one side of the equation

d=18

<h3>To check we can show our equation but instead of d we have 18</h3><h3 />

\frac{6}{18-6} =\frac{1}{2}

Subtract and we get

\frac{6}{12} =\frac{1}{2}

Which makes it true

<h3><em>Have a good day!</em></h3>
3 0
3 years ago
Lauren paid $16.74 for sliced turkey at the deli counter. The turkey cost $6.20 per pound. How much turkey did Lauren buy? Round
nirvana33 [79]

Answer:

2.7 pounds

Step-by-step explanation:

16.74/ 6.20= 2.7

7 0
3 years ago
Outdoor Education:<br><br><br> What are the 3 R's when it comes to treestand safety?
vladimir1956 [14]

Answer:

The 3 R in treestand safety is stands for rescue, relief and recover.

Step-by-step explanation:

The 3 R in treestand safety is stands for rescue, relief and recover.

Treesstand safety include following guidelines

1) Do use safety belt to replace a chain; do not use a rope.

2) Read the instructions on the correct use and modification of the belt system extensively.

3) If you wear a harness device, do not leave the ground.

4) Safe belt tied to tree position to avoid you from dropping.

5) Before hunting from it, test your tree stand each year; remove worn parts.

4 0
3 years ago
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