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
Yuliya22 [10]
3 years ago
11

A student’s work is shown below.

Mathematics
2 answers:
omeli [17]3 years ago
8 0

Answer:  Choice C

The student solved the problem incorrectly. The student should add 12.7 to both sides of the equation to isolate the variable, y.

================================================

Explanation:

We add 12.7 to both sides to undo the "minus 12.7"

We apply the inverse operation to whatever is happening to x.

As another example, solving x-2 = 10 leads to x = 12 after adding 2 to both sides to undo the "minus 2".

------------

The student's steps should look like this

y - 12.7 = 32.75

y-12.7+12.7 = 32.75+12.7

y = 45.45

Notice on the left side of the second step, we have the -12.7+12.7 become 0 and go away.

olga55 [171]3 years ago
7 0

Answer:

the correct answer is

D the student solved the problem. correctly

You might be interested in
The cars (seats) of a Ferris wheel are positioned 74 feet from its center. If the Ferris wheel makes 4 revolutions every 4 minut
Nataliya [291]

The linear speed of one of the cars is 7.75 feet per second

The cars (seats) of a Ferris wheel are positioned 74 feet from its center.

The radius, r = 74 feet

The Ferris wheel makes 4 revolutions every 4 minutes

Number of revolutions per minute = 1

Angular speed, w = 1 rev/min

Angular speed, w = 0.10472 rad/sec

The relationship between the linear speed (v), and the angular speed (w) is:

v  =  wr

Substitute w = 0.10472  and r = 74 feet into the formula:

v  =  0.10472  x  74

v  =  7.75 feet per second

The linear speed of one of the cars is 7.75 feet per second

Learn more on linear speed here: brainly.com/question/4357151

7 0
3 years ago
Jane has 14 times as many blue beads as she does red. The combined number of blue beads and red beads is 675. How many blue bead
makkiz [27]
She has 630 blue beads and 45 red beads. Equation is x + 14x = 675
5 0
4 years ago
Read 2 more answers
write three ratios that are equivalent to the one given: The ratio of right-handed students to left-handed students is 18;4.
Ainat [17]
9 : 2 = 18 : 4

As: 9 x 2 : 2 x 2 = 18 : 4

--------------------

36 : 8 = 18 : 4

As: 18 x 2 : 4 x 2 = 36 : 8

--------------------

72 : 16 = 18 : 4

As: 18 x 4 : 4 x 4 = 72 : 16
6 0
3 years ago
E and F are complementary. If m E = 9x - 38 and mF = 2x + 40, find m F pls I need help
larisa86 [58]

Answer:

<h2>m\angleF = 34°</h2>

Step-by-step explanation:

If E and F are complementary I means that the sum of their angles add up to 90° since all complementary angles have the sum of their angles equal to 90°

To find m\angleF add m\angleE and m\angle F and equate it to 90 to find x then substitute it into the expression for m\angleF

Thats

m\angleE + m\angleF = 90

\rarr 9x - 38 + 2x + 40 = 90

\rarr 11x + 2 = 90

\rarr 11x = 90 - 2

\rarr 11x = 88

Divide both sides by 11

x = 8

Now we have

if m \angleF = 9x - 38

m\angle F = 9( 8) - 38

m\angleF = 72 - 38

We have the final answer as

<h3>m\angleF = 34°</h3>

Hope this helps you

4 0
3 years ago
If a plane traveled 610 miles in 1 hour, how fast is it going?
GalinKa [24]

Answer:

very fast

Step-by-step explanation:

10.2 miles per minute :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • 4x+3y how to solve this question and why is it such a small question
    5·1 answer
  • Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same
    12·1 answer
  • How to solve this problem
    11·1 answer
  • 1 7/11 X 2 5/6 find the product
    8·2 answers
  • The area of a circle with a diameter of 240 mm is?
    7·2 answers
  • What values of x and y satisfy x − 3y = 4 and 2x + y = 7 simultaneously?
    8·1 answer
  • Which equation is equivalent to<br><br> f(x) = 16x4 – 81 = 0?
    10·2 answers
  • The distance between Chicago and Cleveland is
    8·1 answer
  • 3. FACTOR f(x) = x3 + 2x2 – 51x + 108 completely given x + 9 is a factor.
    9·1 answer
  • F (x) = 7x Find f^-1 (x)​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!