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3 years ago

11

Alex thinks of a number. he squares it, then takes away five .Next multiplies it by 4 ,takes away seven, divides it by three ,an

d finally adds six his answer is nine what number did he start with

2 answers:

ICE Princess25 [194]3 years ago

6 0

Answer:

3

Step-by-step explanation:

start with the ending answer and go backwards

kykrilka [37]3 years ago

5 0

Answer:

3.

Step-by-step explanation:

.

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Select the outlier in the data set.

Katarina [22]

Answer:

86

Step-by-step explanation:

21 <u>3</u>6

<em>5</em>2 <em>4</em>0

<u>3</u>2 <em><u>86</u></em>

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3 years ago

Jack charges $40 initial fee plus $30 an hour to work on vehicles. Mark charges $25 an hour with a $50 initial fee. to work on v

Nostrana [21]

Answer:

Step-by-step explanation:

Let the equal number of hours be represented by variable H;

The two equations will be as follows;

Jack; 40 +30H

Mark; 50 +25H

Next, equate them;

40 + 30H = 50 + 25H

30H - 25H = 50 - 40

5H = 10

H =10/5

H = 2hrs

Therefore, they charge the same amount at 2 hrs.

B.) The amount charged;

Replace the variable H in any of the two equations above with 2 to solve for the amount.

Equation 40+30H = 40 + (30*2)

=40 + 60

= $100

4 0

3 years ago

Oliver plans to purchase a $1500 certificate of deposit (cd) at his bank. The CD will earn 2.3% interest, compounded semi-annual

vekshin1

Answer:

Step-by-step explanation:

Weren't there more instructions? Please, share everything about each problem you post here.

Use the compound amount formula: A = P(1 + r/n)^(nt).

Here we have

A = $1500(1 + 0.023/2)^(2t), where t is the number of years.

3 0

3 years ago

The price of a pedicure decreases by 4.2% from £36 on promotion.

maria [59]

A) 95.8 % of £36 will be the new price

B) The answer to part A as a decimal is £34.488

C) The new price is £34.488

<h3><u>Solution:</u></h3>

Given that the price of a pedicure decreases by 4.2% from £36 on promotion

<em><u>A) What percentage of £36 will the new price be ?</u></em>

Given that £36 is decreased by 4.2 %

New price = 36 – 4.2% of 36

$\begin{array}{l}{\text { New price }=36-\frac{4.2}{100} \times 36} \\\\ {\text { New price }=36-1.512} \\\\ {\text { New price }=34.488}\end{array}$

Now we have to find what percentage of £36 will the new price be

x % of 36 = 34.488

$\frac{x}{100} \times 36 = 34.488\\\\x = \frac{34.488 \times 100}{36} = 95.8 \%$

<em><u>B) Write your answer to part a as a decimal.</u></em>

Now, we have to find the new price in decimal form.

$\begin{array}{l}{95.8 \% \times 36 \rightarrow \frac{95.8}{100} \times 36} \\\\ {\rightarrow 0.958 \times 36=34.488}\end{array}$

<em><u>C) Work out the new price.</u></em>

As we calculated, the new price is £34.488

6 0

3 years ago

HELPPP, please:) super easy

LUCKY_DIMON [66]

Answer:

6.8

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers