Answer: x = 7
`Step-by-step explanation:
Because the figure shows two triangles that are similar. we can write and solve an equation of ratios:
9 cm 72 cm
----------- = -----------
3x - 20 56 cm
Cross-multiplying, we get (3x - 20)(72 cm) = (9 cm)(56 cm) = 504 cm²
Dividing both sides by 72 cm, we get:
3x - 20 = (504 cm²) / (72 cm) = 7
Then 3x - 20 = 7, and 3x = 27. Then x must be 9.
Speed = slope of the line = 20 / 0.5 = 40 km / hr
Second part will be a line with downward slope from the end of the horizontal line Slop = 20 / 1/3 (=60 km/h) So it will pass through the 65 on horizontal axis.
Answer:
Based on your line, what is the likely test score of a student who does not study for the test? 45
Complete Question
The complete question is shown on the first uploaded image
Answer:
1
2
3
4
Step-by-step explanation:
Generally the area of a sector is mathematically represented as
Now at and
Now at in and
Now at and
Now at and
For 1
Twice a number means
A number used two times
Is that number was x
What do we do to x