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3 years ago

10

The average human heart beats 72 beats per minute. How many times does it beat in 15 seconds?

1 answer:

Brut [27]3 years ago

4 0

It beats 27 times because the sum of 15 and 45 is 60 and

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Can you solve this question for me?

krek1111 [17]

y+2 = 3x

subtract 2 from each side

y = 3x-2

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3 years ago

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21. Andre grew a plant for a science experiment. At the end of his

kotegsom [21]

Answer:

he answer is 140 minutes to plant 14 saplings.

Step-by-step explanation:

30 divided by 3=10

so it takes 10 minutes to plant one sapling.

10x14=140 so this is how you get your answer. im 99% sure

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Assured normally costs £42 if you receive a 15% discount how much change will you get from £50

vesna_86 [32]

5% of £42 = £2.10
10% of £42 = £4.20
15% of £42 = £6.30

£42 - £6.30 = £35.70

£50 - £35.70 = £14.30

the answer is £14.30

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3 years ago

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Arlo invested $4000 in an account that earns 5.5% interest, compounded annually. The formula for compound interest is A(t)=P(1+i

USPshnik [31]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$4000\\ r=rate\to 5.5\%\to \frac{5.5}{100}\dotfill &0.055\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases} \\\\\\ A=4000\left(1+\frac{0.055}{1}\right)^{1\cdot 4}\implies A=4000(1.055)^4\implies A\approx 4955.2986$

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3 years ago

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Convert y - 1 = 2(x - 4)

Dimas [21]

The answer is y=2x-7

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