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3 years ago

Evaluate x+2.7 for x=-1.5

Mathematics

1 answer:

jonny [76]3 years ago

3 0

Answer:

1.2

Step-by-step explanation:

First make -1.5 equal to 0.

We'll have to add 1.5, right?

So 1.5 is in 2.7.

So now its 0 + ? = ?

2.7 - 1.5 = 1.2

So 0 + 1.2 = 1.2

Hope this helped.

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3 years ago

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During his trip, sara knits a bright, oranges scarf at the rate of 469 mm every hour. If her trip last 8 days and if sara sleeps

Tpy6a [65]

For this case, the first thing we must do is define variables.

We have then:

x: number of hours

y: Amount of scarf that Sara knits

We then have the following equation that models the problem:

$y = 469 (x - 40)$

The number of hours during the 8 days is given by:

$x = 8 * (24-5)\\x = 152$

Substituting the value of x in the ada equation we have:

$y = 469 (152 - 40)\\y = 52528$

Answer:

she will knitted by the end of the trip about 52528mm of scarf

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3 years ago

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What's the annual percentage yield for money invested at the rate of 3.2% compounded continuously?

Novay_Z [31]

Answer:

The Annual percentage yield is 3.25%.

Step-by-step explanation:

Given : Money invested at the rate of 3.2% compounded continuously.

To find : What's the annual percentage yield?

Solution :

Money invested at the rate of 3.2% compounded continuously.

The compounded continuously formula is

$A=Pe^{rt}$

Where, P is the principal P=1

t is the time t=1

r is the interest rate r=3.2%=0.032

Substitute the value in the formula,

$A=Pe^{rt}$

$A=1\times e^{0.032}$

$A=1.0325$

The Annual percentage yield is

$APY=(A-1)\times 100$

$APY=(1.0325-1)\times 100$

$APY=0.0325\times 100$

$APY=3.25\%$

Therefore, The Annual percentage yield is 3.25%.

6 0

3 years ago