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2 years ago

Solve for X. 5.4 + 0.2x = 7.09 Enter your answer as a decimal or as a mixed number in simplest form in the box. x =

Mathematics

1 answer:

FromTheMoon [43]2 years ago

3 0

Answer:

x = 8.45

Step-by-step explanation:

5.4 + 0.2x = 7.09

Subtract 5.4 from both sides to leave 0.2x alone

0.2x = 1.69

Divide by 0.2 on both sides to isolate x

x = 1.69/0.2

x = 8.45

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Assume that y varies directly with x then solve y = 2.5 x = .5 when x = 20

velikii [3]

Step-by-step explanation:

y=2.5| ?

x=0.5| 20

It'll be criss-crossed then it'll be:-

2.5×20=50

5 0

2 years ago

Write the explicit rule,

meriva

Answer:

$a_{n}$ = 20n + 12

Step-by-step explanation:

There is a common difference d between consecutive terms, that is

d = 52 - 32 = 72 - 52 = 92 - 72 = 20

This indicates the sequence is arithmetic with explicit formula

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 32 and d = 20, thus

$a_{n}$ = 32 + 20(n - 1) = 32 + 20n - 20 = 20n + 12

7 0

2 years ago

4) Realtor gets 3% commission on sales, sold a $200,000 house, her<br> commission is

sdas [7]

Answer:

6,000

Step-by-step explanation:

200,000 * 0.03 = 6,000

6 0

2 years ago

Read 2 more answers

Please answer this 2 multiple choice questions correctly I needed today please show work

vredina [299]

Answer:

21) 12x + 11

hoped that worked

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2 years ago

2x + y - z = -8

Andreyy89

Answer:

Multiply row 1 by $\frac{1}{2}$ .

Step-by-step explanation:

The augmented matrix of the system of linear equation is described below:

$\left[\begin{array}{cccc}2&1&-1&-8\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]$

Where $a_{11} = 2$ , if we need to create $a_{11} = 1$ , we need to multiply row 1 by $\frac{1}{2}$ , that is to say:

$\left[\begin{array}{cccc}1&\frac{1}{2} &-\frac{1}{2} &-4\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]$

Hence, the correct answer is: Multiply row 1 by $\frac{1}{2}$ .

5 0

2 years ago