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Sliva [168]
2 years ago
5

MATH HELP PLS!!! MARKING BRAINLIESTT!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
kow [346]2 years ago
8 0

The function would be y = 0.45x, x being the number of seconds, y being the items he can ring up.

For example (this is an example only to show how this equation works), if we were looking at how many items the cashier can ring in 5 seconds, we would make the equation y = 0.45(5), and with multiplication, we can find that they would ring 2.25 items ( y = 2.25 )

If I misunderstood this question or got something wrong, please leave a comment and I can help further.

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Solve 12x-5>-2 please
Stells [14]

Answer:

x >  \frac{1}{4}

Step-by-step explanation:

12x - 5 >  - 2

Lets add +5 in both the sides.

=  > 12x - 5 + 5 >  - 2 + 5

=  > 12x > 3

Now lets divide 12 on both the sides.

=  >  \frac{12x}{12}  >  \frac{3}{12}

=  > x >  \frac{1}{4}

8 0
3 years ago
The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the followin
harina [27]
<span>Yes; eating vegetables reduces blood pressure, so the opposite is also true

That is your correct answer
</span>
3 0
2 years ago
A. y = |x - 4| - 2
professor190 [17]
The is C
Hope this help!
7 0
3 years ago
Solve the system by substitution. Check your solution. <br> a-1.2b=-3 <br> 0.2b+0.6a=12
velikii [3]
A - 1.2b = - 3         ⇒ eq. 1
0.2b + 0.6a = 12   ⇒ eq. 2

a - 1.2b = - 3  
a = 1.2b - 3           ⇒ eq. 3

Substitute eq. 3 to eq. 2
0.2b + 0.6(1.2b - 3) = 12
0.2b + .72b - 1.8 = 12
Combine like terms
0.92b = 12 + 1.8
0.92b = 13.8   ⇒ divide both sides by 0.92 to get the value of b
<span>b = 15

</span>Substitute the value of b to eq. 3
a = 1.2b - 3
a = 1.2(15) - 3 
<span>a = 15

</span>to check: substitute the values of a and b to:
eq. 1
a - 1.2b = - 3 
15 - (1.2)(15) = -3 
15 - 18 = - 3 
- 3 = -3    ⇒ correct!

eq. 2 
0.2b + 0.6a = 12 
(0.2)(15) + (0.6)(15) = 12
3 + 9 = 12
12 = 12   ⇒ correct!
7 0
3 years ago
Read 2 more answers
What is the MAD of this data set? <br> 2, 3, 5, 7, 8, 8, 9
Tasya [4]

Answer:

do you mean the mode cause that would be 8 and the mean would be 6 and median would be 7 and the range would also be 7

the mad would be 2.2857 idk what your rounding to but i hope this helps

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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