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kondaur [170]
4 years ago
13

Help please !!!!!!!!!!!!

Mathematics
1 answer:
zhenek [66]4 years ago
8 0
I'm pretty sure it is 20 hundreths
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What is the measure of a? ab=15, bc=15,ac=15
posledela

Answer:

5 or 3

Step-by-step explanation:

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3 years ago
Reflexive property of equality: 3x-1=
kkurt [141]
3x - 1 = 3x -1 because it's reflecting itself
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A car travels a distance of 145 miles in a time of 2.4 hours.
bagirrra123 [75]

Answer:

60.4miles/hr

Step-by-step explanation:

Given parameters:

 Distance covered by the car = 145miles

 Time taken  = 2.4hrs

Unknown:

Average speed of the car  = ?

Solution:

Average speed is the rate of change of distance with time;

   Average speed  = \frac{distance}{time}

Input the parameters and solve;

   Average speed  = \frac{145}{2.4}  = 60.4miles/hr

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3 years ago
Which of the following points is a solution to y ≤ −2x + 3?
Alika [10]

Answer:

d; below; y = −2x + 2

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We check the resulting equation also and see that if we +3 it = 1 and if we +2 it equals 0 so we know +2 in answer format can be less than also. But with questions we are measuring the units and +2 is less than +3.

5 0
3 years ago
Katya tutors and works in the college bookstore to pay for her college tuition. She makes $20 per hour tutoring and $8.50 per ho
strojnjashka [21]

We have to write the equation which represents Katya's earnings while tutoring and working in a book store is given as follows:  

She makes $20 an hour while tutoring. Let's say she tutors for 'x' hours in a day. So, she will make 20 \times x = 20x dollars by tutoring in a day.

She makes $8.50 an hour while working in the bookstore. Let's say she works for 'y' hours in the bookstore in a day. She will make 8.50 \times y = 8.50y dollars by working in the bookstore.

Therefore, the equation representing her total amount of money that she makes from both the places is given by:

$(20x + 8.50 y)

Since, Tution for 16 weeks is $5,736.  So the amount of tuition for each week is =\frac{5736}{16}= 378.5 dollars

So, Katya needs to make 378.50 dollars a week.

Since, She worked for 21 hours in the book store, so she makes  

21 \times 8.50 dollars= 178.50 dollars a week from the bookstore

So, now she needs to make = 378.50 - 178.50 = $180 a week while tutoring

Since she makes 20 dollars an hour from tutoring.  

She needs to tutor =\frac{180}{20} =9 hours a week to make the rest of the tuition.

So, Katya has to work for 9 hours in tutoring.

3 0
3 years ago
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