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3 years ago

The school track is 2/3 of a mile long. how far wuld you run if you took 9 laps around the track?

Mathematics

1 answer:

kakasveta [241]3 years ago

4 0

Step-by-step explanation:

$distance \: run \: in \: one \: lap \\ = \frac{2}{3} \: miles \\ \\ \therefore \:distance \: run \: in \:9 \: laps \: \\ = \frac{2}{3} \times 9 \\ = 2 \times 3 \\ = 6 \: miles$

Hence, in 9 laps you will run 6 miles.

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Decrease 1280 by 67%

blondinia [14]

67% of 1280 is 857.6 substrack it and it's = 422.4

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3 years ago

Alang went to the store to buy some walnuts. The price per pound of the walnuts is $7 per pound and he has a coupon for $2.50 of

MA_775_DIABLO [31]

Answer:

$11.50 is the cost for 2 pounds of walnuts

Expression: 7p - 2.50

Step-by-step explanation:

First, create an expression to represent the cost:

7p will represent the cost, since the walnuts are $7 per pound, and 2.50 needs to be subtracted from this because of the coupon for $2.50 off

So, the expression is 7p - 2.50

Use this expression to find the price for 2 pounds of walnuts:

7p - 2.50

7(2) - 2.50

14 - 2.50

= 11.50

So, the cost with the coupon will be $11.50

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2 years ago

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3 years ago

Read 2 more answers

Write an equation in standard form given: m= -3/4 and b=5.

Dmitry [639]

Answer:

3x+4y=20

Step-by-step explanation:

The slope-intercept equation would be:

y=mx+b

y=-3/4(x)+5

But standard form is

ax+by=c

We can obtain this by moving the -3/4(x) to the left side

$\frac{3x}{4} +y=5$

Multiply both sides by 4 to get rid of the fraction

3x+4y=20

5 0

2 years ago

Solve: -rt - 80 > 30 for r. show your work!

vaieri [72.5K]

<h2>Steps:</h2>

So to solve for a variable, we must isolate it onto 1 side of the inequality. In this case, we must isolate r. Firstly, add 80 to both sides of the inequality:

$-rt>110$

Next, divide both sides by t:

$-r>\frac{110}{t}$

Next, multiply both sides by -1. Since we are multiplying by a <em>negative</em> number, flip the inequality symbol as well:

$r$

<h2>Answer:</h2>

<u>In short, your final answer is $r$ </u>

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3 years ago