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Ratling [72]
3 years ago
12

Help me please with this

Mathematics
1 answer:
Sphinxa [80]3 years ago
8 0
They're all $15.99 each
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Dominic is driving on a long road trip. He currently has 10 gallons of gas in his car. Each hour that he drives, his car uses up
Nostrana [21]

Answer:

(a) Equation: T_n = 11.25 - 1.25n

(b) 7.5 gallons

Step-by-step explanation:

Given

Current Gas = 10 gallon

Every Hour = -1.25 gallon

Solving for (a): An equation for the scenario

This question represents an Arithmetic Progression and will be solved using the following formula:

T_n = a + (n - 1)d

Where

a = 10

d = -1.25

Substitute these values in the formula

T_n = 10 + (n - 1) * -1.25

T_n = 10 -1.25n +1.25

Collect Like Terms

T_n = 10 + 1.25 - 1.25n

T_n = 11.25 - 1.25n

Solving for (b): In this case, n - 3

Substitute 3 for n in T_n = 11.25 - 1.25n

T_3 = 11.25 - 1.25 * 3

T_3 = 11.25 - 3.75

T_3 = 7.5

<em>7.5 gallon of gas left</em>

6 0
3 years ago
Anybody know the answer to this question?
arlik [135]
Answer a ka gim tul hd shi kdi
4 0
1 year ago
The coordinates A(2, 1), B(7, 1), C(2, 4) form what type of polygon?
Digiron [165]

Step-by-step explanation:

Slope \:  of \:  AB =  \frac{1 - 1}{7 - 2}  =  \frac{0}{5}  = 0 \\  \\ Slope \:  of \:  BC =  \frac{4 - 1}{2 -  7}  =  \frac{3}{ - 5}  =  - \frac{3}{ 5}   \\  \\  \because \: Slope \:  of \:  AB \neq \: Slope \:  of \:  BC \\  \\  \therefore \: given \: points \: are \: non - collinear. \\

Hence, coordinates A(2, 1), B(7, 1), C(2, 4) form a triangle.

6 0
3 years ago
Read 2 more answers
Mike observed that 75% of the students of a school liked skating. If 35 students of the school did not like skating, the number
N76 [4]

we are given that 35 students do not like skating and that 75 % of the students like skating otherwise. This means 25 % of the students dont like skating. Hence the total number of students is 35/0.25 equal to 140 students. 75 percent of 140 students is the answer equal to 105 students
8 0
3 years ago
Read 2 more answers
Experts/ace/geniuses helpp
Alex Ar [27]
Square root 144 =  12 so this is the rational number
8 0
4 years ago
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