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Zarrin [17]
3 years ago
11

Which expressions are equal to ? Check all that apply.

Mathematics
2 answers:
AlexFokin [52]3 years ago
8 0

Answer:

Second option and fifth option

Step-by-step explanation:

Since they are all with a denominator of 9 we do not need to do anything else except add them up.

The first one is equal to 7/9

Second is 8/9

Third is 6/9

Fourth is 9/9

Fifth is 8/9

Serggg [28]3 years ago
4 0

Answer:

3/9 + 5/9 and 4/9 + 4/9 are both equal to 8/9.

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Taya2010 [7]

Answer:

9/50 im pretty sure

Step-by-step explanation:

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4 0
4 years ago
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Evaluate the expression: 28 + 87 = 3 x 23
TEA [102]

Answer:

I think it's 202

Step-by-step explanation:

28+87 =115

3×2³

2×3=6

28+87=3×2³= 202

8 0
3 years ago
Sophia has 3 jewelry boxes. She puts 8 necklaces in each box. Explain how to use counters to solve for the total number of neckl
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Answer:

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Step-by-step explanation:

4 0
3 years ago
A factory manufactures chairs and tables, each requiring the use of three operations: cutting, assembly, and finishing. The firs
cluponka [151]

Answer:

z(max) = 650 $

x₁ = 10 units

x₂ = 15 units

Step-by-step explanation:

That is a linear programming problem, we will use a simplex method to solve it

Formulation:

Let´s call  x₁  number of chairs   and x₂ number of tables then :

Item              (in hours)     cutting       assembly      finishing        Profit ($)

Chairs (x₁)                              1                   2                     1                      20

Tables (x₂)                              2                   1                      1                      30

Availability                           40                 42                   25

Objective Function

z  =  20*x₁   +  30x₂   ( to maximize) subject to:

x₁  +  2x₂   ≤  40

2x₁  + x₂    ≤  42

x₁ + x₂     ≤    25

x₁  ,   x₂  >= 0

Using excel or any other software we find:

z(max) = 650

x₁ = 10

x₂ = 15

7 0
3 years ago
249,104,330 in expanded form
kumpel [21]
200,000,000+40,000,000+9,000,000+100,000+4,000+300+30

hope I helped :)
6 0
3 years ago
Read 2 more answers
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