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Nimfa-mama [501]
3 years ago
15

Y = (5 x 9) + 1 X 9) = 54

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0

Answer:

Step-by-step explanation:

1. Given that: y = (5 x 9) + (1 x 9)

                        = 45 + 9

                        = 54

Using repeated reasoning;

y = (5 x 9) + (1 x 9)

factoring 9 in the equation, we have;

y = 9 (5 + 1)

 = 9 (6)

 = 54

2i. 7 x 6 = (5 x 6) + (2 x 6)

           = (5 + 2)6

           = 7 x 6

           = 42

ii. 7 x 9 = (5 x 9) + (2 x 9)

            = (5 + 2)9

            = 7 x 9

            = 63

iii. 7 x 7 = (5 x 7) + (2 x 7)

            = (5 + 2)7

            = 7 x 7

            = 49

Therefore, the factors that Pam used repeatedly are 5 and 2.

3. 7 x 8 = (LX) + (LX)

            = X(L + L)

Representing L and X by a number,

7 x 8 = (4 x 7) + (4 x 7)

        = 7(4 + 4)

        = 7(8)

        = 7 x 8

        = 56

Thus, the generalization is true.

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Answer:

  • Option <u>B </u>is correct i.e. <u>2</u><u>1</u>

Step-by-step explanation:

In the question we're provided with an equation that is :

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And we are asked to find the solution for the equation .

<u>Solution</u><u> </u><u>:</u><u> </u><u>-</u>

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Multiplying by 7 on both sides :

\longrightarrow \: \frac{v}{ \cancel{7} }\times  \cancel{7}  = 3 \times 7

On further calculations , we get :

\longrightarrow \:  \blue{\boxed{v = 21}}

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We are verifying our answer by substituting value of v in the equation given in question :

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Putting value of v :

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\longrightarrow \:3 = 3

\longrightarrow \: L.H.S=R.H.S

\longrightarrow \: Hence , \: Verified.

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Answer:

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Step-by-step explanation:

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