All categories

3 years ago

Decide whether the rates are equivalent. 17 heartbeats in 15 seconds or 68 heartbeats in 60 seconds. I don't get it.

1 answer:

4 0

Well start off by simplifying each rate:

17/15 --> can't be further simplified
68/60 = 34/30 = 17/15

So then, yes these rates are equivalent.

Also, you can divide 17/15 and 68/60 and compare the quotients.

You might be interested in

Find the annual rate of interest. Principal = 4600 rupees Period = 5 years Total amount = 6440 rupees Annual rate of interest =

Semmy [17]

Answer:

The rate of interest for compounded annually is 6.96 % .

Step-by-step explanation:

Given as :

The principal amount = Rs 4600

The time period = 5 years

The amount after 5 years = Rs 6440

Let The rate of interest = R %

<u>From compounded method</u>

Amount = Principal × $(1+\dfrac{\textrm rate}{100})^{\textrm Time}$

or, Rs 6440 = Rs 4600 × $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

Or, $\frac{6440}{4600}$ = $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

or, 1.4 = $(1+\dfrac{\textrm R}{100})^{\textrm 5}$

Or, $(1.4)^{\frac{1}{5}}$ = 1 + $\dfrac{R}{100}$

or, 1.0696 = 1 + $\dfrac{R}{100}$

or, $\dfrac{R}{100}$ = 1.0696 - 1

Or, $\dfrac{R}{100}$ = 0.0696

∴ R = 0.0696 × 100

I.e R = 6.96

Hence The rate of interest for compounded annually is 6.96 % . Answer

5 0

3 years ago

There are 30 calories in cup of red seedless grapes. How many calories are consumed if a person eats between and 1 cups of grape

EastWind [94]

Answer:

the first one is 90, the second is 150, the third is option d

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

Whats the answer giving brainliest answer

stiks02 [169]

Answer:

C because its the only one that fits the question its asking. 12-6 8-4 4-2

Step-by-step explanation:

4 0

3 years ago

I don’t know how to solve this problem

miss Akunina [59]

The draws are independent, so

$P(\text{red then blue})=P(\text{red})\cdot P(\text{blue})$

There is a total of 11 marbles in the bag, so

$P(\text{red})=\dfrac3{11}$

and

$P(\text{blue})=\dfrac5{11}$

$P(\text{red then blue})=\dfrac{15}{121}$

7 0

3 years ago

Melinda earns 10 minutes to play video games for every hour she spends on homework.

Naily [24]

Answer:

30 minutes

Step-by-step explanation:

if she earns 10 minutes per hour and there are 3 hours, 10 times 3 is 30

6 0

3 years ago

Read 2 more answers