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Deffense [45]
3 years ago
11

Help please !!!!!!!!!!

Mathematics
1 answer:
vichka [17]3 years ago
5 0

Answer:

6 hours

Step-by-step explanation:

70 ÷ 4 = 17.5 ----- divide to find out how many miles she travels per hour.

Samantha is driving at 17.5 mph

105 ÷ 17.5 = 6 ----- divide to find out how long it will take to travel that distance.

distance ÷ time = speed

distance ÷ speed = time

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777dan777 [17]
Need more detail to solve
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5) Answer the following questions :
uysha [10]

Answer:

a)9:7 b) 9:16 c) 7:16

Step-by-step explanation:

the no of girls (320-180)=140

a) ratio of no of boys and girls=180/140=9/7=9:7

b)ratio of boys and total pupil=180/320=9/16=9:16

c) ratio of the girls and pupils=140/320=7/16=7:16

6 0
3 years ago
Read 2 more answers
What is the explicit formula for the arithmetic sequence –7.5, –9, –10.5, –12...
natita [175]

Answer:

= - 1.5n - 6

Step-by-step explanation:

Given that the sequence is arithmetic with n th term ( explicit formula

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 7.5 and d = - 9 - (- 7.5) = - 9 + 7.5 = - 1.5

= - 7.5 - 1.5(n - 1) = - 7.5 - 1.5n + 1.5 = - 1.5n - 6

Step-by-step explanation:

3 0
3 years ago
The temperature falls from 10°F to -15° F. What is the difference in these<br> temperatures?
nadya68 [22]

Answer:

the difference is 25

Step-by-step explanation:

to get from 10 to 0 is 10 units and from 0 to -15 is 15

10+15 = 25

8 0
2 years ago
2) (-10) + (-7) shoe work
Sladkaya [172]
A negative plus a negative equals a negative so it's just -17
7 0
2 years ago
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