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Andrej [43]
3 years ago
14

Jane is going to fence in her back yard. She has purchased 150 feet of

Mathematics
1 answer:
Alborosie3 years ago
7 0
D. x+ 40 = 150 this is the answer
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How to write 32 in exponential notation using 2 as the base
Kryger [21]
2^x = 32
x = 5

Hope this helps!
3 0
3 years ago
Don’t understand this question
spayn [35]
It's easy you just need to multiply both numbers by 25
5 0
3 years ago
A bus​ averages 8 miles per hour faster than a trolley. If the bus travels 60 miles in the same time it takes the trolley​ to tr
hammer [34]

Answer:

Bus speed:  22 mph; Trolley speed:  14 mph

Step-by-step explanation:

Let rb represent the speed of the bus and rt the speed of the trolley.  Then rb = rt + 8 (mph).

Recall that distance = rate times time.  Two different distances and two different speeds are involved here, but only one time.

Thus,

             60 mi                                                           44 mi

     --------------------- = time (same in both cases) = -------------

          rt + 8 mi/hr                                                        rt

Cross-multiplying, we get   44rt + 8(44) = 60 rt, or

                                                    352 = 16rt.

Solving this for rt, we get    rt = speed of bus = 352/16 = 22 mph

The speed at which the bus travels is 22 mph and that at which the trolley travels is (22 mph - 8 mph) = 14 mph

3 0
3 years ago
, Ohio in 1990, the number of residents has decreased by 5% every 5 years. In 1990, there were 182,000 residents in Dayton, Ohio
Sphinxa [80]

Answer:

133,787 residents

Step-by-step explanation:

First thing we need to do here is calculate the number of 5 years between 2020 and 1990

That would be 2020-1990 = 30/5 = 6

Now to estimate the present population, we will be needing an exponential equation

P = I(1-r)^n

where P is the present population at 2020

I is the population at 1990 which is 182,000

r is the percentage decrease every 5 years which is 5% or simply 5/100 = 0.05

n is the number of 5 years between 1990 and 2020 which is 6

Plugging all these values we have;

P = 182000(1-0.05)^6

P = 182000(0.95)^6

P = 133,786.724

To the nearest whole number, P = 133,787 residents

3 0
3 years ago
There are 138 people seated at the tables in a banquet hall. Each table can seat 12 people. All the tables are full except one.
Inessa [10]
11 tables are full, the other one has six people
8 0
3 years ago
Read 2 more answers
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