Question

help :)

Answer 1

what's your question? :)

Answer 2

@Michele_Laino

Answer 3

we have:
3/2= 1.5, and 3/4 = 0.75

Answer 4

so c!

Answer 5

correct!

Answer 6

next!

Answer 7

Peter earned $180 working at a store during the summer months. He bought 4 books worth $12 each from his earnings at the store. How much money was left after he bought the books?

$33
$42
$132
$228

Answer 8

the remaining money is: \(180-48=...?\)

Answer 9

since he spent \(12 \cdot 4=48$\)

Answer 10

132

Answer 11

ok!

Answer 12

c?

Answer 13

of course!

Answer 14

ok next! :)

Answer 15

Ada is showing her work in simplifying (5.9 – 1.8) – 6.2 + 4.1. In which step did Ada make an error?

Step 1: (5.9 – 1.8) – 6.2 + 4.1

Step 2: 5.9 + (–1.8 – 6.2) + 4.1 (associative property)

Step 3: 5.9 – 8 + 4.1

Step 4: 5.9 + 4.1 – 8 (associative property)

Step 5: 10 – 8 = 2

Step 2; she wrote associative instead of commutative
Step 2; she wrote associative instead of distributive
Step 4; she wrote associative instead of commutative
Step 4; she wrote associative instead of distributive

Answer 16

when I swap two operands, I'm applying the commutative property

Answer 17

A?

Answer 18

I think A is a wrong option

Answer 19

c?

Answer 20

correct!

Answer 21

next!

Answer 22

next please

Answer 23

A?

Answer 24

please wait a moment, I have to answer to my phone

Answer 25

ok :)

Answer 26

ok! I'm here

Answer 27

we can write this:
\[2\frac{1}{9} - \left( { - 4\frac{1}{3}} \right) = - \frac{{19}}{9} + \frac{{13}}{3} = \frac{{ - 19 + 39}}{9} = ...?\]

Answer 28

20

Answer 29

20 / 9 ?

Answer 30

oops...
\[ - 2\frac{1}{9} - \left( { - 4\frac{1}{3}} \right) = - \frac{{19}}{9} + \frac{{13}}{3} = \frac{{ - 19 + 39}}{9} = ...?\]

Answer 31

correct!

Answer 32

now, we have:
\[20:9 = 2 \cdot 9 + 2\]

Answer 33

20

Answer 34

being:
\[20:9 = 2 \cdot 9 + 2\]
what is the right option?

Answer 35

A?

Answer 36

correct!

Answer 37

oops.. I have made an error, the right expression is:
\[20 = 2 \cdot 9 + 2\]

Answer 38

right A?

Answer 39

yes!

Answer 40

ok next! :)

Answer 41

What is the sign of the product (–5)(–3)(–8)(–6)?

Positive, because the products (–5)(–3) and (–8)(–6) are negative, and the product of two negative numbers is positive
Positive, because the products (–5)(–3) and (–8)(–6) are positive, and the product of two positive numbers is positive
Negative, because the products (–5)(–3) and (–8)(–6) are negative, and the product of two negative numbers is negative
Negative, because the products (–5)(–3) and (–8)(–6) are positive, and the product of two positive numbers is negative

Answer 42

hint:
you have to apply the sign rule:
\(- \cdot -=+\)

Answer 43

and:
\( + \cdot +=+\)

Answer 44

b?

Answer 45

correct!

Answer 46

Sally swam a total distance of 3 and 1 over 2 miles during the months of November and December. If Sally only swam 1 over 4 of a mile every day, which expression shows the number of days she went swimming?

3 and 1 over 2 ⋅ 1 over 4
3 and 1 over 2 ÷ 1 over 4
3 and 1 over 2 + 1 over 4
3 and 1 over 2 – 1 over 4

Answer 47

we have to divide the total distance by the unit distance

Answer 48

b?

Answer 49

correct!

Answer 50

Michelle bought 2 tickets to a zoo. After she bought the tickets, her account balance showed a change of –$33.04. What would have been the change to Michelle's account balance had she only bought 1 ticket to the zoo?

–$16.52
$16.52
$16.50
–$16.50

Answer 51

since two ticket cost 33.04$ then one ticket costs: \(33.04: 2=...?\)

Answer 52

tickets*

Answer 53

16.52

Answer 54

correct!

Answer 55

next!

Answer 56

wait is it A?

Answer 57

yes!

Answer 58

oh ok next! :)

Answer 59

Which of the following describes a situation in which the total distance a hockey player travels is 0 meter from his starting point?

The player skates 0 meter forward and then skates 8 meters in the opposite direction.
The player skates 9 meters forward and then skates 8 meters in the opposite direction.
The player skates 12 meters forward and then skates 0 meter in the opposite direction.
The player skates 12 meters forward and then skates 12 meters in the opposite direction.

Answer 60

d?

Answer 61

yes!

Answer 62

Which of the following correctly uses absolute value to show the distance between –60 and 11?

|–60 – 11| = |–71| = –71 units
|–60 + 11| = |–49| = 49 units
|–60 + 11| = |–49| = –49 units
|–60 – 11| = |–71| = 71 units

Answer 63

total distance is given by the absolute value of the difference between your values

Answer 64

d?

Answer 65

yes!

Answer 66

Jinni opened a bank account. She deposited $87.60 into her account every month for 10 months. She used $25.60 every month to pay for music classes. After 10 months, she used 1 over 4 of the total money left in her account to go to a summer camp for musicians. What is the total amount of money Jinni spent to go to the summer camp?

$64.00
$88.00
$155.00
$620.00

Answer 67

deposited money is \(87.60 \cdot 10=...?\)

Answer 68

876

Answer 69

the spent money is: \(25.6 \cdot 10 =...? \)

Answer 70

256

Answer 71

the remaining money is: \(876-256=...? \)

Answer 72

620

Answer 73

and 1 over 4 of 620 is: \(620:4=...?\)

Answer 74

ok so d?

Answer 75

please what is \(620 :4 =...? \)

Answer 76

620

Answer 77

I got \(620 :4 = 155 \), am I right?

Answer 78

yes

Answer 79

so, what is the right option?

Answer 80

c?

Answer 81

correct!

Answer 82

next! :)

Answer 83

what is:
\[\frac{{36}}{2} = ...?\]

Answer 84

\(36:2=...?\)

Answer 85

18

Answer 86

and \(54:3=...?\)

Answer 87

18

Answer 88

and \(90:5=...?\)

Answer 89

every single one is 18 :)

Answer 90

yes!

Answer 91

The regular price of a hooded jacket is $25.75. During a sale, the jacket was marked as 20% off. What was the approximate price of the jacket during the sale?

$5.15
$20.60
$21.62
$23.75

Answer 92

the discount is: \(25.75 \cdot 0.2=...?\)

Answer 93

A?