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
8090 [49]
3 years ago
5

Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points) −5x − 25

= 78 Step 1: −5x − 25 − 25 = 78 − 25 Step 2: −5x = 53 Step 3:negative five times x over negative five = fifty-three over negative five Step 4: x = negative fifty-three over five Group of answer choices Step 1: She should have added 25 to each side. Step 1: She should have divided both sides by −5. Step 3: She should have divided both sides by −5. Step 3: She should have multiplied both sides by −5.
Mathematics
1 answer:
Fofino [41]3 years ago
5 0

Answer:

x = -20.6

Step-by-step explanation:

Step 1: −5x − 25 − 25 = 78 − 25

Should be

Step 1: -5x-25+25=78+25

Step 2: -5x=103

Step 3: Divide both sides by -5: x = -20.6

You might be interested in
A deep sea diving bell is being lowered at a constant rate. After 10 ​minutes, the bell is at a depth of 600 ft. After 40 minute
Degger [83]
<h2>Average rate of lowering per​ minute = 36.67 ft/min</h2>

Step-by-step explanation:

After 10 ​minutes, the bell is at a depth of 600 ft

After 10 minutes

                   Depth of bell = 600 ft

After 40 minutes the bell is at a depth of 1,700 ft.

After 40 minutes

                   Depth of bell = 1700 ft

Time gap = 40 - 10 = 30 minutes

Depth fallen = 1700 - 600 = 1100 ft

We have

           Depth fallen = Average rate of lowering per​ minute x Time gap

           1100 = Average rate of lowering per​ minute x 30

           Average rate of lowering per​ minute = 36.67 ft/min

7 0
3 years ago
Niko got the jumbo ice cream cone at the Dutchess County Fair. The amount of ice cream can be modeled using a cone whose height
motikmotik
85 over 320 of a cup
6 0
3 years ago
Read 2 more answers
Please help ill give brainliest and follow my insta lol&gt; widowmaker2007
Karo-lina-s [1.5K]
Do u follo back tho lol
7 0
3 years ago
Solve the following Simultaneous equation<br>Using any suitable method<br> x+6y=2, 3x +2y =10​
uranmaximum [27]

Answer:

x = 0.5

y = -1/4 or -0.25

Step-by-step explanation:

x + 6y = 2

3x + 2y = 10

Multiply a number by any of the equations to get numbers of the same variable

3x + 18y = 6

3x + 2y = 10

3x - 3x = 0

NB: subtract evenly if u subtract down from top make sure u subtract down from top throughout

16y = -4

16y/16 = -4/16

y = -1/4 or -0.25

to find the x value, any where you see y u put in the y value(-0.25)

So u'll pick just one of the equations above

x + 6(0.25) = 2

x + 1.5 = 2

x = 1.5 + 2

x = 0.5

5 0
3 years ago
A certain third-degree polynomial function has zeros at-5, -1, and 2. Which could NOT be a factor of the expression that defines
Kitty [74]

Answer:

I am pretty sure it is the second option

Step-by-step explanation:

Hope this helps

8 0
2 years ago
Other questions:
  • Andrea opened a bank account for her daughter Hannah, with a deposit of $ 1,750 . The account will earn 2% simple interest annua
    10·1 answer
  • What is y-10=9(x+8) in standard form
    10·1 answer
  • Bruh I dont get why they need to charge money to use this app basically what if a family cant afford it or there parents just do
    5·2 answers
  • 7÷10p^3 ÷ 2÷ 8p^2 please help
    7·1 answer
  • Use &lt;, &gt;, or = to <br><br> 947 and 479
    15·1 answer
  • One of the two numbers is less than ten.
    6·1 answer
  • The equation of the graphed line is 2x – 3y = 12.
    13·1 answer
  • Select the correct answer from each drop-down menu.
    11·2 answers
  • The coordinates G(7, 3), H(9, 0), I(5, -1) form what type of polygon?
    15·2 answers
  • Kendra Bought p packs of baseball cards there are 14 cards in each pack write an expression that shows how many baseball cards
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!