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Zina [86]
3 years ago
13

david drove 150 miles and used 8 gallons of gasoline. Rebecca drove 100 miles and used 6 gallons of gasoline.David said they use

d gasoline at the same rate.is he correct ?
Mathematics
1 answer:
Alexxx [7]3 years ago
8 0
NO HE IS NOT CORRECT
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Pls guys help me pls :c​
Vinil7 [7]

Answer: A. x\geq21\dfrac{2}{3} .

Step-by-step explanation:

The given inequation: 81-1\dfrac{1}{5}x\leq55

\Rightarrow\ 81-\dfrac{6}{5}x\leq55

Multiplying 5 on both the sides, we get

5(81-\dfrac{6}{5}x)\leq5\times55\\\\\Rightarrow\ 405-6x\leq275\\\\\Rightarrow\ 6x\geq405-275\\\\\Rightarrow\ 6x\geq130\\\\\Rightarrow\ x\geq\dfrac{130}{6}\\\\\Rightarrow\ x\geq\dfrac{65}{3}\\\\\Rightarrow\ x\geq21\dfrac{2}{3}

Hence, the inequality for x is x\geq21\dfrac{2}{3} .

So, the correct option is A. x\geq21\dfrac{2}{3} ..

8 0
3 years ago
Id.k why they removed my last question so here's a question
kondor19780726 [428]

Answer:

a= 2

Step-by-step explanation:

2 x 2=4

7-4=3

8 0
3 years ago
Read 2 more answers
Michael makes a deposit of $800 in his bank account. Two years later, he had a total of $832 in his account. What is the interes
harina [27]
It is a 2:50 since intrest in a month
6 0
3 years ago
Can't figure out how to set this up
emmainna [20.7K]

Answer: The point values were chosen to give the desired relative weight between a free throw (1 point), a field goal (2 points), and a three-point goal (3 points). Originally, when Dr. James Naismith invented the game of basketball in 1891, goals were worth one point each

Step-by-step explanation:

7 0
3 years ago
Find the lettered angles in each of the following.
trapecia [35]

Answer:

q = 80 degrees

r = 70 degrees

s = 10 degrees

t = 70 degrees

u = 40 degrees

v = 60 degrees

Step-by-step explanation:

starting with the fact that all angles in any triangle always sum up to 180 degrees :

q = 180 - 60 - 40 = 80 degrees

r = 180 - (60+10) - 40 = 180 - 70 - 40 = 70 degrees

the triangle 40-60-q and v-u-blank are similar triangles. your can say the smaller triangle is just a projection of the large triangle through the focal point at angle q.

that means the angles must be equal.

v = 60 degrees

u = 40 degrees

similar for 10-r-blank and t-s-blank.

s = 10 degrees

t = 70 degrees

6 0
3 years ago
Read 2 more answers
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