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notsponge [240]
3 years ago
10

A student solved the equation 2x+2=10 using algebra tiles. She incorrectly says the solution is 6 . Solve the equation. What mis

take might the student have​ made?

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
7 0

Answer:

she added 2 instead of subtracting it. the answer is x=4

Step-by-step explanation:

10+2=12

12/2=6

enot [183]3 years ago
3 0

Answer:

Step-by-step explanation:

2x+2=10 subtract 2 from each side

2x=8 divide each side by 2

x=4 is the correct solution.

Her error was most likely subtracting 2 from the left and adding 2 to the right

2x+2=10

2x=12

x=6

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The formula for finding the number of bacteria present is given by P=P0(10)t where P is the final population, P0 is the initial
frozen [14]

Answer:

5.45 hours.

Step-by-step explanation:

The formula =

P = P0(10)t

In this circumstance, P0 = 275, P = 15,000 and t = ?

Applying the values into the formula:

P = P0(10)t

15,000 = 275 × (10) × t

15,000 = 2750t

t = 15,000/2750

t = 5.45 hours

3 0
3 years ago
Please help!
photoshop1234 [79]
PART A
rectangle : circle
              5:13
PART B
5x3 : 13x3
  15 : 39
Hope this helped! :)
5 0
3 years ago
Can someone help with this please!!
Ksenya-84 [330]

Answer:

D) L+S=9 ; 6L+3S=9

Step-by-step explanation:

Given this information, we know that the total number of large and small Ubers must be 9, so we can eliminate choices A and C as the first part of the system of equations is L+S=9

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Therefore, the only correct choice is D

5 0
3 years ago
Name:
Vlad [161]

Answer:

115

Step-by-step explanation:

59.50-30

=29.5

29.5/0.25=115

4 0
3 years ago
What is the answer for -390=26c+52<br><br> Choices:<br> 1: C=17<br> 2: C=-13<br> 3: C=13<br> 4: C=17
just olya [345]

Answer:

C=-17

Step-by-step explanation:

-390-52=-442

-442/26=-17

-17

8 0
3 years ago
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