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sergiy2304 [10]
3 years ago
13

Deshaun's gas tank is 1/3 full. After he buys 3 gallons of gas, it is 1/2 full. How many gallons can Deshaun's tank hold?

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:7 gallons

Step-by-step explanation:

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Please help, really don’t know
Rama09 [41]

Answer:

2 hours and 45 minutes

Step-by-step explanation:

5 0
3 years ago
A large open meadow near your city is shrinking in size because developers have started building new homes there.
valentinak56 [21]

Answer:

    t=-10\log 0.32

Explanation:

<u>Equation:</u>

         A=1,562.5\times 10^{(-0.1t)}

This is a decaying exponential function, because the exponent is negative.

Then, the larger the value of t (number of months), the smaller A (the number of hectares).

The factor 1,562.5 is the initial number of hecares, when t = 0.

You must find the value of t when A equals 500, thus solve the equation:

     500=1,562.5\times 10^{(-0.1t)

Divide both sides by 1,562.5

     \dfrac{500}{1,562.5}=10^{(-0.1t)}

    0.32=10^{(-0.1t)}

Take base-10 logarithms on both sides:

    \log 0.32=-0.1t

    t=-\dfrac{\log 0.32}{0.1}\\\\\\t=-10\log 0.32

Note that the logarithm of a number decimal number is negative number, thus t will be positive. When you compute that, it is about 4.9 months.

8 0
3 years ago
A pool at a park takes up an area of 540 square yards. The lengthier 1 2/3 times as long as the width. What are the dimensions o
yarga [219]
Xy= 540
y= 5x/3
x(5x/3)=540
5x^2/3=540
1630=5x^2
x=sqrt(1620/5) = sqrt(324)= 18
x= 18yd
y=30yd

answer: 18 x 30 yards
6 0
3 years ago
Jonas purchased a new car for $18,000. Each year the value of the car depreciates by 40% of its value the previous year. How muc
Pavlova-9 [17]

Answer:

$5,040

Step-by-step explanation:

First you multiply 40 times 7. Then turn it to a percent, .280. Finally multiply it by 18,000 and get 5,040.

6 0
3 years ago
Find the area of a triangle with a base length of 4 units and a height of 5 units.
miskamm [114]

Answer:

The area of the triangle is 10 square units.

Step-by-step explanation:

The formula for area of a triangle is A = \frac{1}{2}bh.  

The problem gives us this information:

b = 4 units

h = 5 units

You can use the formula and plug the numbers into the equation to find your answer of 10 square units.

5 0
3 years ago
Read 2 more answers
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