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Contact [7]
3 years ago
7

darnells's car used 8 gallons of gasoline to travel 340 miles.After a mechanic worked on the car it used 7 gallons of gasoline t

o travel 350 miles. If the price of the gasoline was approximately $4.00 a gallon,to the nearest cent per mile,did it cost to run the car after the mechanic worked on it
Mathematics
1 answer:
NemiM [27]3 years ago
4 0
If it is $4.00 per gallon then we need to find the price of 7 gallons.
7 * 4.00 = 28
so it costs $28 to travel 350 miles.
no to find the cost per mile, we need to divide.
350 / 28 = 12.5
so the cost to run the car per mile is $12.50
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The perimeter of this rectangle is 156 cm.
erastova [34]

Answer:

x = 15

Therefore, the length and width are 31 and 47.

Step-by-step explanation:

Perimeter = (2x + 1) + (2x + 1) + (3x + 2) + (3x + 2) = 156

Simplified,

10x + 6 = 156

Subtract 6 from both sides, then divide by 10.

10x = 150

x = 15

To find the length and width, substitute 15 (the value of x) into the individual equations.

2(15) + 1 = 31

3(15) + 2 = 47

5 0
3 years ago
A radio transmission tower is 170 feet tall. How long should a guy wire be if it is attached 15 feet from the top and makes a 27
MatroZZZ [7]
The wire is attached 155 feet off the ground.sine(27) = 155 / hypotenuse hypotenuse = 155 / sine (27)hypotenuse =155 / 0.45399hypotenuse = <span> <span> <span> 341.42
</span></span></span>This means the guy wire is 341.42 feet long.

6 0
3 years ago
32^(x+4) = 64^(2x-1)
Rudik [331]

Answer:

Vamos a resolver la ecuación paso a paso.

32x+4=642x−1

Step-by-step explanation:

Resolver el exponente.

32x+4=642x−1

log(32x+4)=log(642x−1)(Sacar el logaritmo de ambos lados.)

(x+4)*(log(32))=(2x−1)*(log(64))

x+4=(

log(64)

log(32)

)*(2x−1)

x+4=1.2*(2x−1)

x+4=2.4x−1.2(Simplificar ambos lados de la ecuación)

x+4−2.4x=2.4x−1.2−2.4x(Restar 2.4x a ambos lados)

−1.4x+4=−1.2

−1.4x+4−4=−1.2−4(Restar 4 a ambos lados)

−1.4x=−5.2

−1.4x

−1.4

=

−5.2

−1.4

(Dividir ambos lados por -1.4)

x=3.714286

Solución:

x=3.714286

7 0
2 years ago
88/1 in simplest form
Pavlova-9 [17]

Answer:

88

Step-by-step explanation:

Divide the numerator by the denominator.

88 ÷ 1 = 88

5 0
2 years ago
Sally is making a
kogti [31]

Answer:

784

Step-by-step explanation:

you take the 49 and times is by 16

there are 4 sides

7 0
3 years ago
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