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4 years ago

Irene buys a talking doll for $10.66 and

Mathematics

2 answers:

Basile [38]4 years ago

7 0

Answer:

$5.10

Step-by-step explanation:

Irene pays with a $20 bill

Subtract all other values from $20

$20 - $10.66 - $4.22

$5.12

Round to the nearest dime, which is every $0.10

2 rounds down, so the final answer is $5.10

Hope this helps :)

jok3333 [9.3K]4 years ago

3 0

Answer:

$ 5.10

Step-by-step explanation:

10.66 would turn into 10.70

4.22 would trun into 4.20

10.70 plus 4.20 = 14.90

20 minus 14.90 = 5.10

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Juan roller skated for 2 hours 40 minutes with a constant speed of 18 m/h and then for another 1 hour 50 minutes with a constant

Nikolay [14]

Answer: 136 m

Step-by-step explanation:

For first interval,

Time = 2 hours 40 minutes = $2+\dfrac{40}{60}\text{ hours}\ [\text{1 hour = 60 minutes}]$

$=2+\dfrac{2}{3}=\dfrac{8}{3}\ \text{hours}$

Speed = 18 m/h

Distance = $\dfrac{8}{3}\times18=48\ m$ [Formula : Distance=Speed x time]

For second interval,

Time = 1 hour 50 minutes = $1+\dfrac{50}{60}\text{ hours}\ [\text{1 hour = 60 minutes}]$

$=1+\dfrac{5}{6}=\dfrac{11}{3}\ \text{hours}$

Speed = 24 m/h

Distance = $\dfrac{11}{3}\times24=88\ m$

Total distance = 48 m +88 m = 136 m

Hence, he went 136 m.

8 0

3 years ago

A very large bag contains more coins than you are willing to count. Instead, you draw a random sample of coins from the bag and

Pie

Missing Details

Quarters ≡ Dimes ≡ Nickels ≡ Pennies

23 ≡ 29 ≡ 17 ≡ 38

Answer:

$P(Q\ or\ P) = 0.5701$

Step-by-step explanation:

Given

$Quarters = 23$

$Dimes = 29$

$Nickels = 17$

$Pennies = 38$

First, we calculate total number of coins

$Total = 23 + 29 + 17 + 38$

$Total = 107$

The probability of obtaining quarter (Q) of penny (P) is:

$P(Q\ or\ P) = P(Quarters) + P(Pennies)$

$P(Q\ or\ P) = \frac{n(Quarters)}{Total} + \frac{n(Pennies)}{Total}$

Take LCM

$P(Q\ or\ P) = \frac{n(Quarters) + n(Pennies)}{Total}$

$P(Q\ or\ P) = \frac{23 + 38}{107}$

$P(Q\ or\ P) = \frac{61}{107}$

$P(Q\ or\ P) = 0.5701$

6 0

3 years ago

The cookies in sarah's cookie jar decrease by 5 cookies every 2 days. which rational number does not describes the scenario?

babymother [125]

A is the only one that ones not decrease using a negative sign

6 0

3 years ago

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How can you tell if a set of bivariate data shows a linear relationship?

Anastasy [175]

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5 0

3 years ago

Suppose you have a standard deck of 52 cards. What is the probability that if you select a card at random that it does not have

mr Goodwill [35]

0.92

Step-by-step explanation:

There are 4 cards in a deck of 52 cards that has a face value of 3. That means that the other 48 cards don't have a face value of 3. Therefore, the probability of picking a card of this deck that doesn't have a face value of 3 is

$P =\dfrac{48}{52} = 0.92$

4 0

3 years ago