You have been reading your book for about 7 days
7(10) pages each day + 9 left
70+ 9 = 69
X=35/6 i hope i helped :-)
Answer:
1) 24 is <span>40%</span> of 60
<span><span>2) (.4)100x</span>=24</span>
<span><span>3) 25</span>x=24</span>
<span><span>4) 25</span>x⋅5=24⋅5</span>
<span>5) 2x=120</span>
<span><span><span>6) 2x/</span>2</span>=<span>120/2</span></span>
<span>7) x=<span>60</span></span>
The mass of the apple juice needed to increase the initial concentration to 25% is 45 kg
The given parameters;
- <em>Mass of the apple juice, m = 30 kg</em>
- <em>current percentage, = 10%</em>
- <em>final percent after increment = 25%</em>
Let the mass added to increase the percentage to 30% = x
10% ----------------- 30 kg
25% ------------------ ?
![= \frac{25 \times 30}{10} \\\\= 75 \ kg](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B25%20%5Ctimes%2030%7D%7B10%7D%20%5C%5C%5C%5C%3D%2075%20%5C%20kg)
The additional mass is calculated as;
![x+ 30 = 75\\\\x = 75 - 30\\\\x = 45 \ kg](https://tex.z-dn.net/?f=x%2B%2030%20%3D%2075%5C%5C%5C%5Cx%20%3D%2075%20-%2030%5C%5C%5C%5Cx%20%3D%2045%20%5C%20kg)
Thus, the mass of the apple juice needed to increase the initial concentration to 25% is 45 kg.
Learn more about percentage and ratio here: brainly.com/question/11752721
Answer:
B
Step-by-step explanation:
We want to find the equation of a line with a slope of 3 that includes the point (0, 5).
We can use the slope-intercept form, given by:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
Where m is the slope and b is the y-intercept.
Notice that the given point (0, 5) is already the y-intercept. So, b = 5.
By substitution, we acquire:
![y=3x+5](https://tex.z-dn.net/?f=y%3D3x%2B5)
Hence, our answer is B.