3 years ago

Explain the error .help me plll

Mathematics

1 answer:

dmitriy555 [2]3 years ago

3 0

Answer:

<u>Correct solution in steps</u>

5 - 2(a + 7) + 10a = The first operation is parenthesis
5 - 2(a) - 2(7) + 10a = The second operation is simplification
5 - 2a - 14 + 10a = Next operation is collecting like terms
(10a - 2a) + (5 - 14) = Next operation is simplification
8a + (-9) =
8a - 9

The error in the given solution was the first step: (5 - 2)

You might be interested in

If x^2 = 16(5), then x =

Bogdan [553]

Answer:

$4\sqrt{5}$ or 8.944

Step-by-step explanation:

$x^{2} = 16(5)$

Simplify

$x^{2} =80$

Square root both sides to get x by itself

$\sqrt{x^{2} } =\sqrt{80}$

$4\sqrt{5}$ or 8.944

6 0

3 years ago

Mia has 3/4 pound of butter. a muffin recipe calls for 1/8 pound of butter for each batch how many batches of muffins can Mia ma

svet-max [94.6K]

3/4 put into eighths would be 6/8. So Mia would be able to make 6 batches with the butter that she has.

4 0

3 years ago

Hanna walks 1 2/3 miles to school. After school she walks 1 1/2 mikes to work. How many miles does she walk before and after sch

allsm [11]

She walks 3.167 miles in total

5 0

3 years ago

Read 2 more answers

Select ALL the expressions that are equivalent to 1/2z

kicyunya [14]

The only expressions are letters B and D

3 0

4 years ago

MSolve the following equation using the quadratic formula.

Oliga [24]

Answer:

the answer is C

Step-by-step explanation:

it it can be calculated by using simple quadratic formula

4 0

3 years ago

Explain the error .help me plll​

Explain the error .help me plll