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
AnnZ [28]
2 years ago
14

Find the mistake: two-step equations

Mathematics
2 answers:
kirill [66]2 years ago
8 0

Answer:

Ling did not make a mistake.

Step-by-step explanation:

\bf -2q+11=-32

\bf -2q=-43 (Step 1)

\bf q=21.5 (Step 2)

First step, Ling subtracted 11 from both sides which's correct.

Then she divided each side of the equation by -2. correct*

Hence, Ling didn't make a mistake.

_____________________

Bezzdna [24]2 years ago
6 0
Ling did not make a mistake
You might be interested in
Cindy selects a sample of college students. She finds a relationship between the students' scores on an impulsivity scale and th
Degger [83]

Answer:

just let me have the points im just vibin

Step-by-step explanation:

7 0
3 years ago
After stepping into a room with unusual lighting, Michelle's pupil has a diameter of 8 millimeters. What is the pupil's circumfe
RideAnS [48]
2 x Pi x Radius I think?
8 0
3 years ago
Given that p=9i+12j and q=-6i-8j. Evaluate |p-q|-{|p|-|q|}
krok68 [10]

Answer:

|p-q|-(|p|-|q|) = 20

Step-by-step explanation:

First let's find the value of 'p-q':

p - q = 9i + 12j - (-6i - 8j)\\p - q = 9i + 12j + 6i + 8j\\p - q = 15i + 20j\\

To find |p-q| (module of 'p-q'), we can use the formula:

|ai + bj| = \sqrt{a^{2}+b^{2}}

Where 'a' is the coefficient of 'i' and 'b' is the coefficient of 'j'

So we have:

|p - q| = |15i + 20j| = \sqrt{15^{2}+20^{2}} = 25

Now, we need to find the module of p and the module of q:|p| = |9i + 12j| = \sqrt{9^{2}+12^{2}} = 15

|q| = |-6i - 8j| = \sqrt{(-6)^{2}+(-8)^{2}} = 10

Then, evaluating |p-q|-{|p|-|q|}, we have:

|p-q|-(|p|-|q|) = 25 - (15 - 10) = 25 - 5 = 20

7 0
3 years ago
A coach of a baseball team orders hats for the 12 players on his team. Each hat costs $9.95. The shipping charge for the entire
Ronch [10]

Answer:

124.4

Step-by-step explanation:

12 x 9.95 = 119.4 dollars

119.4+5.00=124.4

The total cost is $124.40.

6 0
3 years ago
In matrix theory, many of the familiar properties of the real number system are not valid. If a and b are real numbers, then ab
kozerog [31]

Answer:

B=\left[\begin{array}{ccc}0&0\\0&1\\\end{array}\right]

Step-by-step explanation:

Let's do the multiplication AB.

If A=\left[\begin{array}{ccc}1&0\\0&0\\\end{array}\right]

then the first row of A is= (1 0) by the first column of B= (0 0) is equal to zero.

the first row of A is= (1 0) by the second column of B= (0 1) is equal to zero too because 1.0+0.1=0.

the second row of A is= (0 0) by any colum of B is equal to zero too.

So we have found an example that works!

7 0
4 years ago
Other questions:
  • These two scalene triangles are similar with a scale of 7:47:4. What is true about these figures?
    14·1 answer
  • Working alone at its constant rate, machine A produces x boxes in 10 minutes and working alone at its constant rate, machine B p
    15·1 answer
  • New York State has found that 30 % of all consumer complaints are valid. If the State received 6000 complaints last year, about
    15·1 answer
  • What's the solution of -2+2/5
    5·1 answer
  • In the same scenario as 4.4, what is the lowest number of IceCream-type small monsters that a collector must capture to make cap
    13·1 answer
  • Tori spent 9 minutes on the phone while routing 3 phone calls. In all, how many phone calls does Tori have to route to spend a t
    13·1 answer
  • 8 minus the quotient of 15 and Y equals a product of Y and 13
    7·1 answer
  • Mean of Frequency Tables
    11·1 answer
  • I need help can you pls help
    8·1 answer
  • HELP ME BEFORE I GET IN TROUBLE
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!