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Xelga [282]
2 years ago
8

Lauren and Kristi are practicing for a track meet. Lauren runs 4 more than twice as many laps as Kristi.

Mathematics
1 answer:
Jlenok [28]2 years ago
6 0
Lauren runs 14 laps. 2(5) + 4 = 14. Kristi runs 5. 5 x 2 = 10 , 10 + 4 = 14.
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0.25q+0.10d=4.95<br> D=3q
lorasvet [3.4K]
0.25q + 0.1d = 4.95
d = 3q

0.25q + 0.1(3q) = 4.95
    0.25q + 0.3q = 4.95
               <u>0.55q</u> = <u>4.95</u>
                0.55     0.55
                      q = 9
0.25(9) + 0.1d = 4.95
    2.25 + 0.1d = 4.95
  <u>- 2.25             - 2.25</u>
               <u>0.1d</u> = <u>2.7</u>
                0.1     0.1
                    d = 27
5 0
3 years ago
(-3,0),(5,-2) find the slope
Mashcka [7]

Answer:

-4

Step-by-step explanation:

Point slope form: y - y = m (x - x)

5 - (-3) = m (-2 - 0)

5 + 3 = m (-2)

8 = m (-2)

m = 8/(-2)

m=4

3 0
3 years ago
The probability of it snowing in Eastern Canada tomorrow is 0.4. The probability of it snowing in Western Canada tomorrow is 2/5
Viktor [21]

Answer:

Neither

Step-by-step explanation:

They both have the same probability because 2/5 and 0.4 have the same value.

6 0
3 years ago
What is the value of b2 - 4ac for the following equation? 2x 2 - 2x - 1 = 0
Orlov [11]
For you to make an equation a quadratic equation, you need everything to be on one side, so you add one to both sides. 

<span>2x^2 + 3x + 0=0 </span>

<span>a=2, b=3, c=0 </span>

<span>b^2-4ac (In the next step just plug in your variables) </span>

<span>3^2 - 4(2)(0) </span>

<span>9 - 8(0) </span>

<span>9 - 0 </span>

<span>Your answer=9</span>
6 0
3 years ago
Use the distributive property and gather the like terms in the equation below.
user100 [1]

Answer:

-8x - 10

Step-by-step explanation:

To use the distributive property, distribute what is outside the parenthesis to each term in the parenthesis. When you do this, you multiply each term by what's outside the parenthesis.

-2(4x) + (-2)(5)

= -8x - 10

hope this helps :)

3 0
2 years ago
Read 2 more answers
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