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emmasim [6.3K]
3 years ago
10

Solve the equation 7x=3^2-1

Mathematics
1 answer:
Deffense [45]3 years ago
3 0

Answer:

15

Step-by-step explanation:

7x+3^2-1

3^2=9-1=8

7x+8

Solution

7x+8

7+8=<u>15</u>

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Solve this<br><br> 3x + 2 = 26
iren [92.7K]

Answer:

x=8

Step-by-step explanation:

3 0
3 years ago
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In 2005 the population of a district was 35.700 with a continuous annual growth rate of approximately 4%, what will the populati
denpristay [2]

Given:

Population is 2005 = 35,700

growth rate = 4% = 0.04

To find:

The population in 2030.

Solution:

The general exponential growth model is

y=a(1+r)^t

where, a is initial value, r is growth rate and t is time in years.

Let the initial year is 2005. So, number of years between 2005 to 2030 is

2030-2005=25

Putting a=35,700, r=0.04 and t=25 in the above model.

y=35,700(1+0.04)^{25}

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y=35,700(2.665836)

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Approximate the value to the nearest whole number.

y\approx 95,170

Therefore, population of the district will be about 95,170.

8 0
3 years ago
Nancy planted 77 daisies 48 roses and 39 tulips about how many roses and tulips did she plant
Svetach [21]
The question says "about" so we will be rounding the numbers.

48 roses = 50 roses
39 tulips = 40

50 + 40 = 90. So she planted about 90 tulips and roses
6 0
3 years ago
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xenn [34]
-4,3 is the answer:)
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Whitney works at an aquarium. She uses hoses of different sizes to fill the fish tanks. Hose A takes 16 min to fill a 160-gal ta
scZoUnD [109]

Answer:

Hose A fills at a rate of 10 gal per min

Hose B fills at a rate of 8 gal per min

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Step-by-step explanation:

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