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2 years ago

How didi the temperature change if at it decreased by 60% then increased by 80%

Mathematics

1 answer:

leonid [27]2 years ago

5 0

Answer:

It decreased

Step-by-step explanation:

It decreased. Assuming that the temperature is 100 and it is now reduced by 60% then the temperature will be at 40 and if it increased by 80% then the final temp is 72. So it is 48% of the original temp.

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2 years ago

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garri49 [273]

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2 years ago

Read 2 more answers

a line with a slope of -1/9 passes through point (9,-1). What is its equation in slope intercept form

Elena L [17]

Answer:

$\huge \orange{y = - \frac{1}{9} x} \\$

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

$y - y_1 = m(x - x_1)$

From the question we have

$y + 1 = - \frac{1}{9} (x - 9) \\ y + 1 = - \frac{1}{9} x + 1 \\ y = - \frac{1}{9} x + 1 - 1$

We have the final answer as

$y = - \frac{1}{9} x \\$

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4 0

2 years ago

Triangle J K L is similar to triangle P Q R ..

drek231 [11]

Answer:

t = 7.5

Step-by-step explanation:

PQ and JK are corresponding sides.

QR and KL are corresponding sides.

$\dfrac{PQ}{JK} = \dfrac{QR}{KL}$

$\dfrac{25}{5} = \dfrac{t}{1.5}$

$5t = 25 \times 1.5$

$t = 5 \times 1.5$

$t = 7.5$

8 0

1 year ago