2 years ago

3/5 ÷ 4/5 = ??? A. 3/4 B. 2/5 C. 7/9

Mathematics

2 answers:

Ahat [919]2 years ago

6 0

Answer:

Option A

Step-by-step explanation:

⅗ ÷ ⅘

⅗ × 5/4

= 3/4

<h2>HOPE IT HELPS</h2>

natta225 [31]2 years ago

6 0

Step-by-step explanation:

=3/5÷4/5

=3/5×5/4

=3×5/5×4

=15/20

=3/4

option a is right

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Makir is saving up his money to buy a iPad that costs $475.99. Right now he has $196.00, and can save $45.00 each week. How many

ehidna [41]

Answer:
5 weeks
Step-by-step explanation:
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3 years ago

Read 2 more answers

Given $a \equiv 1 \pmod{7}$, $b \equiv 2 \pmod{7}$, and $c \equiv 6 \pmod{7}$, what is the remainder when $a^{81} b^{91} c^{27}$

Blizzard [7]

$\begin{cases}a\equiv1\pmod7\\b\equiv2\pmod7\\c\equiv6\pmod7\end{cases}$

$a^{81}\equiv1^{81}\equiv1\pmod7$

$b^{91}\equiv2^{91}\pmod7$

$2^{91}\equiv(2^3)^{30}\times2^1\equiv8^{30}\times2\pmod7$
$8\equiv1\pmod7$
$2\equiv2\pmod7$
$\implies2^{91}\equiv1^{30}\times2\equiv2\pmod7$

$c^{27}\equiv6^{27}\pmod7$

$6^{27}\equiv(-1)^{27}\equiv-1\equiv6\pmod7$

$\implies a^{81}b^{91}c^{27}\equiv1\times2\times6\equiv12\equiv5\pmod7$