75/4 is 18.75.
I wasn't quite sure what you were asking here but I gave it my best shot
Answer:
Step-by-step explanation:
<u>Given inequality:</u>
<u>Verify if (-1, 1) is correct:</u>
- 7(-1) + 2(1) > - 5
- - 7 + 2 > - 5
- - 5 > - 5
False inequality, it is not the solution
The table is:
Number of washes denoted by x: 0, 8, 12
Amount left on card denoted by y: 30, 18, 12
a. Write an equation that shows the amount of dollars left on the card
Solution:
18 – 30 divided by 8 – 0 = -12/8
On simplest form is -3/2
The equation is y = -3/2x + 30
b. Explain the meaning of the negative slope above.
As the number of car washes increase, the dollars left on the card decreases.
c. What is the maximum value of x?
0 = -3/2x + 30
2/3 x 3/2 x = 30/1 x 2/3
Cancel 2/3 x 3/2 and reduce 30 by 3 we get 10, 10 x 2
x = 20
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Answer:
⅖
Step-by-step explanation:
In 27.43,
There are 2 tens, 7 units, 4 tenths and 2 hundredths
4/10
2/5
The two angles are 155 degrees and 25 degrees
<h3><u>
Solution:</u></h3>
Given that two supplementary angles are in ratio 31 : 5
Let the first angle be 31a
Let the second angle be 5a
Two Angles are Supplementary when they add up to 180 degrees.
Therefore,
first angle + second angle = 180 degrees
<em><u>Therefore the angles are:</u></em>
first angle = 31a = 31(5) = 155 degrees
second angle = 5a = 5(5) = 25 degrees
Thus the two angles are 155 degrees and 25 degrees
