3 years ago

John took a 5-mile walk to his friend's house.

Mathematics

1 answer:

lianna [129]3 years ago

7 0

Answer:

2 hours

Step-by-step explanation:

add the time before and after adding 30 mins. (1 hour and 45 minutes/ 2 hours and 15 mins.) then divide by 2

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Answer:

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3 years ago

Jen buys 4 tires for $272. What is the price for 1 tire?

slavikrds [6]

Answer:

68 dollars

Step-by-step explanation:

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3 years ago

Read 2 more answers

Ryan has 3/4 cup of pudding. How many 1/6 cup serving of pudding can ryan make?

ale4655 [162]

You need to divide the amount he has by the serving size.

(3/4) / (1/6) =

= 3/4 * 6/1

= 18/4

= 4 1/2

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3 years ago

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]

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

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

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

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

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

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

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

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3 years ago

An athlete eats 60 grams of protein per day while training. How much is this in milligrams?

lyudmila [28]

I believe the answer to be 60000 mg

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