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Crank
3 years ago
11

Oliver has music lessons on Monday, Wednesday, and Friday. Each lesson is 3/4 of an hour. Oliver says he will have lessons for 3

1/2 hours this week. Without multiplying, explain how you know Oliver is incorrect.
Mathematics
2 answers:
daser333 [38]3 years ago
8 0
3/4 of an hour is 45min so 45min x 3 equal 2h15 not 3h30 ! I hope I helped you
sergey [27]3 years ago
5 0
Automatically we know that he is wrong  because even if we round it to make it a friendly number (lets say 1)  it will still not equal 3 1/2
he has them for 3 1/2 days

even 1+1+1= 3  it still isnt enough and you arent even supposed to round

That is why he is wrong :) hope this helped
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Write a translation rule that maps point D(7, −3) onto point D'(2, 5).
12345 [234]

Answer:

The translation rule is described by D'(x,y) =(x-5,y+8).

Step-by-step explanation:

According to Linear Algebra, a translation consists in sum a given vector (original point in this case) with another vector (translation vector). We can define translation as follows:

D'(x,y) = D(x,y) +U(x,y) (Eq. 1)

Where:

D(x,y) - Original vector with respect to origin, dimensionless.

D'(x,y) - Translated vector with respect to origin, dimensionless.

U(x,y) - Translation vector with respect to original vector, dimensionless.

From (Eq. 1) we get that translation vector is:

U(x,y) = D'(x,y)-D(x,y)

If we know that D(x,y) = (7,-3) and D'(x,y) =(2,5), then the translation vector is:

U(x,y) = (2,5)-(7,-3)

U(x,y) = (-5,8)

And we find the translation rule by assuming that D(x,y) = (x,y) and U(x,y) = (-5,8) in (Eq. 1):

D'(x,y) = (x,y)+(-5,8)

D'(x,y) =(x-5,y+8)

The translation rule is described by D'(x,y) =(x-5,y+8).

5 0
3 years ago
A lady is 5 years younger to her husband and he is 5 times as old as his daughter. If the daughter was 5 years old 3 years back,
adoni [48]

Answer:

35

Step-by-step explanation:

5x (5+3)=40-5=35

3 0
3 years ago
Which of these frequency counts would be represented by the smallest number of dots on a dot plot?
xeze [42]

ANSWER

a. 6

EXPLANATION

On a dot plot , we use dots to represent frequencies.

The frequency 6, is represented by 6 dots.

The frequency 7, is represented by 7 dots.

The frequency 9, is represented by 9 dots.

The frequency 8, is represented by 8 dots.

The smallest number of dots is represented by 6.

5 0
4 years ago
Read 2 more answers
A lady bought plates and bowls, 24 items in all. The price of each bowl was 60 cents; the price of each plate was 75 cents. The
vova2212 [387]
Plate    bowl         total
.60          .75          1.35
8.4(14)     7.5(10)    15.9
7.8(13)      8.25(11)  16.05
9.6(16)      6(8)          15.6
9(15)         6.75(9)     15.75
13.8(23)   .75           14.55
13.2(22)    1.5(2)     14.7
12.6(21)     2.25(3)  14.85
12(20)      3(4)         15



answer: 4
 
6 0
3 years ago
1. Find the number of ways of arranging 8 men and 4 women around a circular table.
sattari [20]

Answer:

it's difficult

Step-by-step explanation:

i hope if i know it

7 0
3 years ago
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