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Margaret [11]
2 years ago
9

Marci, Bobby, and Max began their homework at the same time. Marci finished her homework in 60 minutes. Bobby finished his homew

ork in 50% of the time it to Marci to finish. Max finished his homework in 150% of Marci's time. How long did each of them work?
Mathematics
2 answers:
NeX [460]2 years ago
5 0

Answer: Marci: 60 minutes

Bobby: 30 minutes

Max: 90 minutes

Step-by-step explanation:

50% of 60 is 30.

100% of 60 is 60, plus 50% is 60+30, which gets you 90.

Irina-Kira [14]2 years ago
5 0

Answer:

bobby finished in 30mins because 50% is 1/2 and 1/2 of 60 is 30

max finished in 90 mins because 150% is 1.5 and 1 whole of 60 is 60 had half of 60 to that it equals 90

Step-by-step explanation:

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The difference between two integers is 32.The ratio of these integers is 1:3.Find these integers​
shutvik [7]

Answer:

16 and 48

Step-by-step explanation:

let the 2 integers be x and 3x ← ratio 1 : 3

Then

3x - x = 32 ← difference between the integers

2x = 32 ( divide both sides by  2 )

x =  16

and 3x = 3 ×  16 =  48

Since magnitude of difference is 32

We can also express the difference as

x - 3x = 32

- 2x = 32 ( divide both sides by - 2 )

x = - 16

and 3x = 3 × - 16 = - 48

The 2 integers are 16 and 48 or - 16 and - 48

7 0
3 years ago
Read 2 more answers
Ken read 30 pages of a book on monday and 1/8 of the book on tuesday, he completed the remaining 1/4od the book on wednesday.how
dlinn [17]
Let the total amount of pages be t
t=30+1/8t+2/8t
now simplify
t=30+3/8t
5/8t=30
divide 30 by 5
1/8=6
now you know 1/8 of the book is 6 pages which means the whole book has 48 pages.

7 0
3 years ago
Which of the following is equivalent to log50^7 rounded to three decimal places
Vitek1552 [10]

Answer:

11.886

Step-by-step explanation:

Given :

log 50^7

Applying formula

log a^m=m log a

So,

7 log 50\\=7(1.698)\\=11.886

Answer will be 11.886

3 0
3 years ago
Why do you divide by 60 after calculating the area of the trapezoid (to calculate the distance)? I got 900 but I don’t know why
Free_Kalibri [48]

Answer:

Step-by-step explanation:

What you are trying to do is a nice way to solve this problem. Without knowing any physics, you are using what math you know to get the answer. You are actually very close to being correct, and you are right. You do have to divide by 60.

Here's why and it is the one bit of physics you have to know.

The speed is km/hour. That word hour is the culprit. Your time is in minutes and you have to get it into hours. In physics, the units have to be consistent.

So ...

b1 = 19 minutes which is 19 min [1 hour / 60 minutes] = 19/60 = 0.31667 hour

b2 = 26 minutes which is 26 min [ 1 hour/60 minutes] =  26/60 = 0.4333 hour

h = 40 km/hour

Area = (0.31667 hour + 0.4333 hour)*40 km/hour /2

Area = 0.75 hour * 40 km/hr //2

Area = 15 km

6 0
3 years ago
suppose there is a 1.9 Fahrenheit drop in the temperature for every thousand feet that an airplane climbs into the sky if the te
matrenka [14]

Answer:

47.6° F

Step-by-step explanation:

8 0
2 years ago
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