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2 years ago

Mike’s car averages 21 miles per gallon of gas. About how many gallons of gas will Mike use for a trip of 400 miles?

Mathematics

1 answer:

Oduvanchick [21]2 years ago

3 0

Answer:

19gallons

Step-by-step explanation:

Given parameters:

Mike's car rate = 21miles per gallon

Distance = 400 miles

Unknown:

Number of gallons of gas = ?

Solution:

The rate of fuel consumption by Mikes car is given as;

Rate = $\frac{distance traveled }{number of gallons}$

Number of gallons = $\frac{distance traveled }{rate}$

Number of gallons = $\frac{400}{21}$ = 19gallons

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Determine the product (4.2×10^-1)+(5.7+10^-1)

Alenkasestr [34]

Answer: (D) 2.394 * 10^-1

Step-by-step explanation:

(4.2 * 10^-1) (5.7 * 10^-1)

= 2.394 * 10^-1

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2 years ago

12x - 2/3 = 83 1/3 12x=? x=?

Serjik [45]

Answer:

12x = 84

x = 7

Step-by-step explanation:

12x = 83 1/3 + 2/3

12x = 84

x = 84/12

x = 7

Hope that helps!

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2 years ago

The sum of two consecutive odd integers is 20 less than four times the smaller of the two integers. Which of the following equat

erik [133]

Mmmmmdghdjebbdghsjbdjbf

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2 years ago

What is the piecewise-defined function that expresses the cost of the order, C(x), in terms of the number of photos ordered, x?

Murljashka [212]

Answer:

See below

Step-by-step explanation:

The values in the table change by $3.80 from one line to the next. Since each change from line to line changes in number of photos by 20, the average cost per photo is $3.80/20 = $0.19. There is apparently a $5.80 -3.80 = $2.00 shipping charge for numbers of photos in the range shown in the table.

Thus, the piecewise function has 3 pieces:

for x < 100: $2.00 + 0.19x

for x < 200: $4.50 + 0.17x

for x ≥ 200: $0.15x

This could be written as ...

$C(x)=\left\{\begin{array}{rcl}\$2.00+0.19x&\text{for}&0\le x$

8 0

2 years ago

How do I solve for the missing angle?! And please include explanations on how you got the answer

Nadusha1986 [10]

Answer:

75°

Step-by-step explanation:

In triangle FBG, one angle is 36. That means the other two must total 180-36=144. Assigning each one 72, their supplementary angle on the interior of the pentagon would be 108.

In triangle JDI, one angle is 39. That means the other two must total 180-39=141. Assigning each one 70.5, their supplementary angle on the interior of the pentagon would be 109.5

We now have 4 of the interior angles. Pentagons have an interior total of 540. 540-108-108-109.5-109.5=105

x is the supplement of 105. 180-105=75

5 0

2 years ago