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Liula [17]
3 years ago
9

Nicolas sold 86 newspapers on Monday 79 on Tuesday and 68 on Wednesday and 83 on Friday how many newspapers did Nicholas sell on

Thursday if he sold a total of 391 in five days?
Define a variable, write an equation, then solve.
Mathematics
2 answers:
natima [27]3 years ago
8 0

Answer:

75

Step-by-step explanation:

86+79+68+83=316

391-316=75

Delicious77 [7]3 years ago
6 0

Answer:

75 newspapers

Step-by-step explanation:

391 is equal to the combination of all the newspapers Nicholas sold over those 5 days. This can be written as an equation:

391 = 86 + 79 + 68 + 83 + x

x represents the number of newspapers Nicholas sold on Thursday.

Now let's solve for x:

First, combine like terms:

391 = 316 + x

now subtract 316 from both sides to isolate x:

391 - 316 = 316 - 316 + x

75 = x

Nicholas sold 75 newspapers on Thursday.

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PLS HELP ASAP!!! <br><br> THANK YOU.
ipn [44]

9514 1404 393

Answer:

  • rectangular prism: 288 ft³
  • triangular prism: 72 ft³
  • total: 360 ft³

Step-by-step explanation:

The volume of a rectangular prism is given by the formula ...

  V = LWH . . . . . the product of length, width, height

This rectangular prism has a volume of ...

  V = (12 ft)(6 ft)(4 ft) = 288 ft³ . . . . rectangular prism volume

__

The volume of a triangular prism is found from the formula ...

  V = Bh

where B is the area of the triangular base, and h is the height of the prism (distance between the triangular bases). The triangular base area is found from ...

  A = 1/2bh . . . . .where b is the base of the triangle, and h is its height.

Here, we have ...

  B = 1/2(6 ft)(4 ft) = 12 ft²

  V = Bh = (12 ft²)(6 ft) = 72 ft³ . . . . triangular prism volume

__

The total volume of the given geometry is the sum of the volumes of the parts:

  aquarium volume = 288 ft³ +72 ft³ = 360 ft³

3 0
3 years ago
If the standard deviation is 7.3kg, what is the variance?
sasho [114]

Answer:

The variance is 53.29 kg²

Step-by-step explanation:

The standard deviation is the square root of the variance.

So

S(X) = \sqrt{V(X)}

In which problem, we have that:

S(X) = 7.3

So

\sqrt{V(X)} = 7.3

\sqrt{V(X)}^{2} = (7.3)^{2}

V(X) = 53.29

The variance is 53.29 kg²

6 0
3 years ago
Which of the h-values satisfy the following inequality 6 ( greater than or equal to sign ) h/2?
Amiraneli [1.4K]

Start from

6 \geq \dfrac{h}{2}

Multiply both sides by 2:

12 \geq h

Which you can rewrite as

h \leq 12

7 0
3 years ago
Tara lives 35000 meters from her grandparests house how many kilometers does tara live from her grandparents
natima [27]
35,000 meters = 35 kilometers
7 0
3 years ago
PLEASE HELP FOR 5,6, and 9!!!! THANK YOU!!
Afina-wow [57]
Use the slope formula which y2-y1 over x2-x1
3 0
3 years ago
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