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Liono4ka [1.6K]
3 years ago
7

56+-4

dle" class="latex-formula">
​
Mathematics
1 answer:
Rashid [163]3 years ago
6 0

Answer:

52

Step-by-step explanation:

56+-4=56-4=52

adding negatives is equal to subtracting the number

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a submarine is moving at a 35 km/h. It can say underwater for another 4.5 hours. If it speeds a steady, how long will it take a
dedylja [7]

Answer:

1 hour 24 minutes

Step-by-step explanation:

49/35=1.4

8 0
4 years ago
An average person in the country needs 2,450 kilocalories(kcal) / day of food to meet their full nutritional needs. The average
OlgaM077 [116]

Answer:

The answer to your question is 0.057 ha

Step-by-step explanation:

Data

Kilocalories needed for a person per day = 2450

Kilocalories produced per hectare = 15737000

Process

1.- Calculate the number of kcal needed per a person for a year

                     2450 kcal ----------------- 1 day

                         x            ----------------- 365 days

                              x = (365 x 2450) / 1

                             x = 894250 kcal

2.- Calculate the amount of land needed

                    15737000 kcal ------------- 1 ha

                        894250 kcal ------------  x

                          x = (894250 x 1) / 15737000

                          x = 0.057 ha

7 0
3 years ago
Find the value of x in the following system of equations: 2x−3y=9x=4+y
Klio2033 [76]

Answer:

x = 4 - 1 = 3

Step-by-step explanation:

2(4 - y) + 3y = 9

8 - 2y + 3y =9

8 + y = 9

y = 1

3 0
3 years ago
For which function is f(x) not equal to f-1(x)?
kobusy [5.1K]
Are there aby answer choices?
3 0
3 years ago
Log10(2x+1)-log10(3x+2)=1​
SIZIF [17.4K]

Answer:

x= -2

Step-by-step explanation:

If you are asking for the subtraction of the equations, then I have given the correct answer. If this is not what you are looking for, please state clearly what you are looking for and I will be happy to help!!

4 0
4 years ago
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