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
WITCHER [35]
3 years ago
7

Look at Karen's attempt to solve the equation for y: y + 8 = 15, y = 15 + 8, y = 23.Describe the mistake that Karen made.

Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

The mistake that Karen made was that in order to get the 8 to switch sides, it should have been subtracted rather than added. This is because it is positive on the left side and therefore must be negative when we switch it to the right side. A proper version of this problem would be below.


y + 8 = 15

y = 15 - 8

y = 7

You might be interested in
Simplify the following question
fiasKO [112]

Answer:

<em>−  2sin(b) / cos(2b)</em>

​

Step-by-step explanation:

DIFFERENTIATE W.R.T. B is a different method entirely

We simply add together the numerators and set with 2cos

then keep this number and add to sinb and square it.

then repeat initial 2 + cosb ^2 but instead of multiplying its add.

Then set the whole division to -sin (2b) squared then +1

<em> −  2cos(b)(3(sin(b))^2+(cos(b))^2)  /  −(sin(2b)) ^2 +1  </em>

​

 

5 0
2 years ago
9. John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for th
kirza4 [7]

Answer:

11.111111111111111...%

6 0
3 years ago
Allison bought some shirts for he clothing store for $15 each. She received $50 off her entire purchase and spent a total of $40
k0ka [10]

The $50 off was like a coupon after you brought all your merchandise to the counter, so we have to add it back in to determine the number of shirts.

$400+$50=$450 original price of shirts

Original price ÷ price per shirt= quantity purchased

$450 ÷ $15/shirt= 30 shirts purchased

Allison bought 30 shirts.

Hope this helps! :)


6 0
3 years ago
Convert 23 miles to feet. (1 mile -= 5280 feet)
Makovka662 [10]

Answer:

121, 440 ft

Step-by-step explanation:

5280*23= 121, 440 ft

4 0
3 years ago
(-3√ -81)(-5+√ -9)+9i
AnnyKZ [126]

Answer:

144i + 81

Step-by-step explanation:

(-3*9i)(-5 + 3i) + 9i

-27i (-5 + 3i) + 9i

FOIL

135i + 81 + 9i

144i + 81

5 0
3 years ago
Other questions:
  • What is 1 gallon into liters
    11·2 answers
  • What is the simplified form of -(x-4)
    8·1 answer
  • Martin can type 240 work in 4 minutes. At this rate,how many words can he type in 10 minutes?
    6·2 answers
  • Define the type of sequence below.
    9·2 answers
  • Children of mothers who smoked during pregnancy scored nine points lower on intelligence tests at ages three and four than child
    12·1 answer
  • Solve -4r + 18= 6 I need this equation
    6·2 answers
  • Hi i need help on letters:
    5·1 answer
  • How do I find the measure of angle 1 and 2
    8·1 answer
  • Convert 11 yards to feet
    8·2 answers
  • M∠ABD = 6x-1, m∠DBC = 11x+7, and m∠ABC = 148°, find x, m∠ABD and m∠DBC.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!