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2 years ago

on july 20th 2018, 1 U.S. dollar (1$) war worth 0.87 euros (0.87) how much $150 was worth in euros on that day

Mathematics

2 answers:

Vlad [161]2 years ago

7 0

Answer:

130.5 euros

Step-by-step explanation:

We can use ratios to solve

1 dollar 150 dollars

----------- = -------------

.87 euros x euros

Using cross products

1x = .87* 150

x =130.5

Alchen [17]2 years ago

3 0

Answer:

130.5 euros

Step-by-step explanation:

$150 x .87

130.5

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Find the explicit formula for the sequence? -1,4,-16,64......

Ede4ka [16]

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Step-by-step explanation:

Given sequence is:

-1,4,-16,64.....

We can see that there is no same difference between consecutive terms so we will find common ratio to see if it is a geometric sequence.

Here

$a_1 = -1\\a_2 = 4\\a_3 = -16\\a_4 = 64\\r = \frac{a_2}{a_1} = \frac{4}{-1} = -4\\r = \frac{a_3}{a_2} = \frac{-16}{4} = -4$

The explicit formula for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the values of r and a1

$a_n = -1 . (-4)^{n-1}$

Hence

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Keywords: Geometric sequence, common ratio

Learn more about geometric sequence at:

#learnwithBrainly

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3 years ago

Arianna runs up 4 flights of stairs then runs down 4 flights of stairs. Does this situation represent additive inverses

dexar [7]

Answer:

Yes because she ends up back at zero

8 0

2 years ago

3 - (2x - 5) < -4(x + 2)

DIA [1.3K]

Answer:

x < -8

Step-by-step explanation:

3 - (2x - 5) < -4(x + 2)

-2x + 8 < -4x - 8

-2x < -4x - 16

2x < -16

x < -8

Best of Luck!

7 0

3 years ago

john scored 15 points his first game. In his last game he scored 20 points. What was his percent of increase?

iVinArrow [24]

$\huge\mathrm{ \it{Answer࿐}}$

Increase = 20 - 15 = 5 points

$\boxed{ \% \: increase \: = \frac{5}{15} \times 100 }$

$\% \: \:increase = \frac{100}{3}$

$\% \: \:increase = 33.33$

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6 0

2 years ago

Find the sum. Include all calculations in your answer.

Andreas93 [3]

Answer:

- 2 2/7

Step-by-step explanation:

First, do the conversion:

[-(6*7)+3]/7 = -39/7

[(3*7)+2]/7 = 23/7

Then calculate the result:

23/7 - 39/7 = -16/7 or - 2 2/7

6 0

3 years ago