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WINSTONCH [101]
3 years ago
14

Plz help it’s 7th grade math

Mathematics
1 answer:
Anna71 [15]3 years ago
6 0
Divide the miles already drove by 7 cause thats every 15 minutes what would be drove so mutiply that by 4 and get 68.57 >> 68.6 miles per hour !
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Sean is a bookworm. On average, he reads pages in minutes. Sean's average unit rate for reading is pages per minute.
Kay [80]
Not enough information to answer
3 0
3 years ago
Read 2 more answers
BRAINLIEST!!! I need help ASAP how do I find the percent change from 1960 to 2000
SVEN [57.7K]

Answer:

percentage change  from 1960 to 1970 =( 0.11 ÷0.25 ) × 100

                                 = 44 %  

Percentage change from 1970 to 1980 =( 0.83 ÷ 0.36) × 100

                                                                 = 230.55%

 percentage change from 1980 to 1990 = ( 0.16 ÷ 1.19) × 100

                                               = 13.44%

percentage change from 1990 to 2000 = (- 0.09 ÷ 1.35) × 100

                                             = -6.667%                                              

Step-by-step explanation:

Item : 1960      1970          1980           1990             2000

gallon: $0.25  $0.36        $1.19    $1.35                 $1.26

change : 0.36 - 0.25 = 0.11

percentage change  from 1960 to 1970 =( 0.11 ÷0.25 ) × 100

                                 = 44 %

 Percentage change from 1970 to 1980 =( 0.83 ÷ 0.36) × 100

                                                                 = 230.55%

 percentage change from 1980 to 1990 = ( 0.16 ÷ 1.19) × 100

                                               = 13.44%

percentage change from 1990 to 2000 = (- 0.09 ÷ 1.35) × 100

                                             = -6.667%                                              

4 0
3 years ago
Select the correct answer.
Marina CMI [18]

Answer:

Step-by-step explanation:

D

8 0
3 years ago
Read 2 more answers
Find the measure of each marked angle!!
tamaranim1 [39]

Answer:

60 is the answer

Step-by-step explanation:

10x - 20 = 7x + 4 (Corresponding angles)

10x - 7x = 20 + 4

3x = 24

x = 8

substituting the values,

10(8) - 20

80 - 20

60

similarly the other angle is 60 since they are corresponding angles.

8 0
3 years ago
Subjects for the next presidential election poll are contacted using telephone numbers in which the last four digits are randoml
sammy [17]

Answer:

probability at least one zero is 0.3439

Step-by-step explanation:

given data

last four digits = randomly selected​

to find out

probability that for one such phone​ number the last four digits include at least one 0.

solution

we know there are total 10 digit

so we first find probability of non zero digit i.e.

Probability  ( non zero ) = 9 /10 = 0.9

and now we find probability of none of digit zero  only event happen n= 4 time in a row by multiplication rules i.e

Probability ( none zero in 4 digit ) = 0.9^{n}

Probability ( none zero in 4 digit ) = 0.9^{4}

Probability ( none zero in 4 digit ) = 0.6561

so we can say probability at least one zero = 1 - Probability ( none zero in 4 digit )  

probability at least one zero = 1 - 0.6561

probability at least one zero is 0.3439

3 0
3 years ago
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