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Nastasia [14]
2 years ago
12

Susanna can work 10 math problems in 15 minutes. How many can she work in an hour and a half?

Mathematics
2 answers:
shusha [124]2 years ago
7 0
Well this one is easy!
10 ~ 15
20 ~ 30
30 ~ 45
40 ~ 60
50 ~ 75
60 ~ 90
90 = 1 hour and 30 minutes! < 60 math problems.
docker41 [41]2 years ago
4 0
She can work 60 in an hour and a half. We find this by figuring out how many minutes are in an hour and a half (there are 90 minutes), dividing that number by 15 (which equals 6), and multiplying that number by 10 (which equals 60). 60 problems is the answer.
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F(1)=6;f(n)=f(n−1)−2
ch4aika [34]

Answer: f(7) = f(4) + 3(3) = 15 + 9 = 24

Step by Step Explanation:

f(1) = 6

f(n) = f(n-1) + 3

 

f(2) = f(1) + 3 = 6+3 = 9

f(3) = f(2) + 3 = 12

f(4) = f(3) + 3 = 15

 

Each term is 3 more than the previous one  

Therefore to get from the 4th term to the 7th term you will add 3

For a total of 3 more times.

 

f(7) = f(4) + 3(3) = 15 + 9 = 24

Hope this helps

5 0
3 years ago
W+2/3=2 5/6 what is w
Oduvanchick [21]

Answer:

13/6

Step-by-step explanation:

2 5/6=17/6

w+2/3=17/6

w=17/6-2/3

w=17/6-4/6

w=13/6

6 0
3 years ago
The slope of the line below is 2/5 and the y-intercept is 4 . What is the slope intercept equation of the line ?
Grace [21]
Y=2/5X+4 is the slope-intercept form. 

4 0
3 years ago
Read 2 more answers
Joan took her three children to the zoo. Admission is $7 each. The snack bar sells water for $2 per bottle and chips for $3 per
lys-0071 [83]

The expression for the total cost of their trip is 7 + 2x + 3y.

As per the question, assuming the number of bottles to be x and number of bags to be y. The equation will have one time fee of admission, product of cost of bottles and number of bottles and product of cost of bags and number of chips bags.

The one time fee and two products will be added to form the expression. Forming the equation now -

Expression = 7 + 2x + 3y

Therefore, the expression of trip when x bottles of water were bought during the visit is 7 + 2x + 3y.

Learn more about expression -

brainly.com/question/723406

#SPJ9

8 0
7 months ago
Please answer the question
Lunna [17]
A since 19 x 29= 551 and 551/375 is around 1.5
4 0
3 years ago
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