1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna [14]
2 years ago
5

Describe and correct any error a student may have made when solving the equation

Mathematics
1 answer:
Lady_Fox [76]2 years ago
6 0

Answer:

The student made an error during the distributive property in the second step where they multiplied 0.15 by -0.2 to equal -0.3 when it should have been -0.03.

Step-by-step explanation:

0.15(y-0.2)=2-0.5(1-y)\\0.15y-0.03=2-0.5+0.5y\\0.15y-0.03=1.5+0.5y\\100(0.15y-0.03)=100(1.5+0.5y)\\15y-3=150+50y\\15y-3-15y-150=150+50y-15y-150\\-153=35y\\-\frac{153}{35}=y

You might be interested in
What is the Slope of these two points (6,2) and (9,5)
Daniel [21]

Answer: 1

Step-by-step explanation:

You would use the slope formula which is (y2-y1)/(x2-x1) where x1 and y1 correspond to the first point and x2 and y2 correspond to the second point. This would be (5-2)/(9-6) which equals 1. Hope this helps!

7 0
2 years ago
Read 2 more answers
M is the midpoint of segment CD. A is a point not on CD. If m
Neko [114]

Answer:

x = 27.42

Step-by-step explanation:

To find the value of x

a segment will be 180 degrees so now we can easily find the value of x

2x + 1 + 5x - 13 = 180   (line segment is 180 degrees)

7x  - 12 = 180

7x = 180 +12

7x = 192

x = 192/7

x = 27.42

5 0
2 years ago
A cone has a volume of 2560π cm cubed and a heigh of 30 cm.
Korolek [52]

Answer:

r = 16 cm

g = 34 cm

LA = 1708.16 cm^2

Step-by-step explanation:

We have that for the cone, the formula is as follows:

v = pi / 3 * r ^ 2 * h

the first thing they ask is to calculate the radius, therefore we solve for r

r ^ 2 = 3 * v / (pi * h)

replacing the volume and height, it remains:

r ^ 2 = 3 * 2560 * pi / (pi * 30)

r ^ 2 = 3 * 2560/30 = 256

r = 16

Now, to calculate the slant height, that is to say g, we can calculate it knowing the height and the radius:

g ^ 2 = r ^ 2 + h ^ 2

g ^ 2 = 16 ^ 2 + 30 ^ 2

g ^ 2 = 1156

g = 34

The lateral area of the cone is given by the following equation:

LA = pi * r * g

replacing

LA = 3.14 * 16 * 34

LA = 1708.16 cm ^ 2

the lateral area is 1708.16 cm ^ 2

8 0
3 years ago
Please please help please please ASAP
laiz [17]
X=7
They are the same angle so they are equal

8 0
3 years ago
Read 2 more answers
Find the missing side round to the nearest tenth.
garik1379 [7]

Answer:

X is 12.58 which rounds to 12.6

Step-by-step explanation:

Kono Dio Da!!

8 0
3 years ago
Other questions:
  • 44 is 55% of what number?
    6·2 answers
  • The height (h) in feet of a baseball on Earth after t seconds can be modeled by the function h(t) = -16(t – 1.5)2 + 36, where -1
    6·1 answer
  • Find the surface area of the triangular prism
    10·1 answer
  • A researcher wants to test if the rate of smoking among adults in Chicago is greater than the national rate of 18%. A random sam
    10·1 answer
  • A 2011 Gallup Poll found that 76% of Americans believe that high achieving high school students should be recruited to become te
    8·1 answer
  • What number is 65% of 140
    10·2 answers
  • What is d/5>4? inequalities
    15·1 answer
  • How much is: 4(2c+3) =28
    12·2 answers
  • Chris ran three times last week. Here are the distances he ran (in kilometers).
    10·1 answer
  • 1. What does the mark of the angles and sides of the triangle indicate?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!