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Sindrei [870]
3 years ago
13

79 x 52 = 46 x 34 =28 x 70 =59 x 31 =62 x 45 =87 x 16 =39 x 20 =​

Mathematics
1 answer:
romanna [79]3 years ago
8 0

Answer:

79×52=4,108

46×34=1,564

28×70=1,960

59×31=1,829

62×45=2,790

87×16=1,392

39×20=780

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Which pair shows equivalent expressions?
DENIUS [597]

2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 4 which is the second option is the equivalent expression.

Explanation:

First,  we need to calculate the value of two-fifths of x. It means 2 portions out of the five portions of x which equates to \frac{2}{5}x.

Now we calculate the values of the two expresssions on the LHS.

1) 2 (two-fifths x + 2) = 2 (\frac{2}{5}x + 2) = \frac{4}{5}x + 4.

2)  (two-fifths x + 4) = 2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 8.

Now we determine values of the four expressions on the RHS.

1) Two and two-fifths x + 1 = 2\frac{2}{5}x + 1

2) Four-fifths x + 4 = \frac{4}{5}x + 4

3) Four-fifths x + 2 = \frac{4}{5}x + 2

4) Two and two-fifths x + 8 = 2\frac{2}{5}x + 8.

Out of the various LHS and RHS values, the 1^{st} LHS value and 2^{nd} RHS value is the same. So option 2 is the answer.

7 0
3 years ago
Read 2 more answers
Write an expression for the perimeter of each regtangle in terms of its width?​
ELEN [110]

Answer:

a (the length is twice the width)

Step-by-step explanation:

a(the length is twice the width)

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How many solutions does y=15x+1 and y=15x+2 have
Eddi Din [679]

Answer:

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Step-by-step explanation:

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3 years ago
How do you use elimination in 4x-3y=8 and 5x-2y=-11
adelina 88 [10]
4x - 3y =   8  ⇒   8x - 6y = 16
5x - 2y = -11 ⇒ 15x - 6y = -33
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                                    x = -7
                           4x - 3y = 8
                       4(-7) - 3y = 8
                         -28 - 3y = 8
                       + 28      + 28
                               -3y = 36
                                -3     -3
                                  y = -12
                            (x, y) = (-7, -12)

To use elimination you have to multiply the first graph by 2 and the second graph by 3 so that the two y-axis can be equal to -6. Then you do the rest to find the answer of the x-axis and the y-axis.
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