3 years ago

Write and solve a real world problem that involves two digit and a four digit dividend

1 answer:

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Fatima send 24 musically videos to Frida and Frida send Fatima 27 musically videos how many videos Fatima and Frida watched from the musically video

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The quotient, of the product of 25 and an unknown number, and 45 is -65. What is the equation for the statement? What is the val

KIM [24]

If the unknown number is x then the equation is:
25x/45=-65
Solution
5x/9=65
5x=-65*9
5x=-585
5x/5=-585/5
x=-117

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3 years ago

Find the first, fourth, and eighth terms of the sequence.<br><br> A(n) = −2 ∙ 2x − 1

Nutka1998 [239]

$A(n)=-2\cdot2^{n-1}\\\\\text{Find the first, fourth, and eighth terms}\\\text{It means}\ A(1),\ A(4)\ \text{and}\ A(8).\\\\\text{Substitute}\ n=1,\ n=4\ \text{and}\ n=8\ \text{in}\ A(n):\\\\A(1)=-2\cdot2^{1-1}=-2\cdot2^0=-2\cdot1=-2\\\\A(4)=-2\cdot2^{4-1}=-2\cdot2^3=-2\cdot8=-16\\\\A(8)=-2\cdot2^{8-1}=-2\cdot2^7=-2\cdot128=-256\\\\\boxed{Answer:\ -2,\ -16,\ -256}$