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ivanzaharov [21]
3 years ago
13

What does 15 and 16 mean

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0
Seems like a proportions problem
In 15, you have 3 boxes and your partner has 1. Total 4 boxes. Each represents 12/4=3 hours. So you have 3 boxes = 3*3=9 hours and your friend has 3 hours.

Same method in 16. You have 4 and your friend has 8
You might be interested in
Based on the work shown on the right, check all
STALIN [3.7K]

Answer:

Solution is x = 8.

Step-by-step explanation:

2 is not a solution as √2*2 - 2 is not equal to -4.

6 0
2 years ago
If x equals 5 what is 72+72+18x+9+18x+9
romanna [79]

Answer:

342

Step-by-step explanation:

x=5

72+72+18(5)+9+18 (5)+9=342

7 0
3 years ago
While training for a marathon, Jeff wants to increase the number of miles he runs each day. On the first day of training, Jeff r
user100 [1]

Answer:

The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

Step-by-step explanation:

* Lets revise the arithmetic series

- In the arithmetic series there is a constant difference between

 each two consecutive numbers

- Ex:

# 2  ,  5  ,  8  ,  11  ,  ……………………….  (constant difference is 3)

# 5  ,  10  ,  15  ,  20  ,  …………………………  (constant difference is 5)

# 12  ,  10  ,  8  ,  6  ,  ……………………………  (constant difference is -2)

* General term (nth term) of an Arithmetic series:

- If the first term is a and the common diffidence is d, then

 U1 = a  ,  U2  = a + d  ,  U3  = a + 2d  ,  U4 = a + 3d  ,  U5 = a + 4d

- So the nth term is Un = a + (n – 1)d, where n is the position of the

 number in the series

* Lets solve the problem

- Jeff wants to increase the number of miles he runs each day

∴ He will add the initial value by constant number each day

- He plans on increasing the number of miles he runs a day by 1

∴ The constant value is 1 mile

-  On the first day of training, Jeff runs 5 miles

∴ The first value is 5 miles

∴ The series is arithmetic

∵ a = 5 , d = 1

- He do that for the remainder of the week

∵ The week has 7 days

∴ The series has 7 terms

∵ The rule of the series is Un = a + (n - 1)d

∵ a = 5 and d = 1

∴ Un = 5 + (n - 1)(1)

∴ Un = 5 + n - 1

∴ Un = 4 + n ⇒ n is the position of the number

- Substitute n from 1 to 7 to find the series

∴ The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

6 0
3 years ago
Lucas ate a fraction of a pizza. Hugo ate 5/8 of the same pizza. Now there is 1/8 of the pizza left what fraction of pizza did L
MatroZZZ [7]

Answer:

\frac{2}{8}

Step-by-step explanation:

In order to solve this equation we will need to use what we know in order to find the answer.

1=\frac{8}{8}

H=\frac{5}{8}

R = \frac{1}{8}

If Huge ate 5/8's of the pizza and 8/8's creates a whole pizza then the question is quite simple. There is only 1/8's remaining after the boys finish their meal but 5/8's of the pizza was already eaten by Hugo meaning Lucas has to eat 2/8's of the pizza in order for there to be only 1/8's of the pizza left which means 2/8's is your answer.

Hope this helps.

5 0
2 years ago
Dr. Johnson treated 1134 patients in 63 days.
Alchen [17]

Answer:

D= 18

Step-by-step explanation:

She treated 18 people on the average because 1134 dived by 63 is exactly 18.

:) :)

8 0
3 years ago
Read 2 more answers
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