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2 years ago

Help me baecuase i need help on thios

Mathematics

2 answers:

Len [333]2 years ago

8 0

The answer is 4 2/4 shorter than the brother

Brums [2.3K]2 years ago

3 0

Answer:

41/12

Step-by-step explanation:

4 3/4 = 15/4 x 3 = 45/12 - 4/12 = 41/12

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Work out the percentage change to 2 decimal places when a price of £198 is increased to £209.99.

bija089 [108]

Answer:

The percentage change = 6.05%

Step-by-step explanation:

New value = £209.99

Old value = £198

Percentage change = [New Value - Old Value] / [Old Value] × 100

= [209.99 - 198] / [198] × 100

= [11.99] / [ 198] × 100

= 0.06 × 100

= 6.05%

Therefore, the percentage change = 6.05%

5 0

2 years ago

An apartment complex on Ferenginar with 250 units currently has 223 occupants. The current rent for a unit is 892 slips of Gold-

Triss [41]

Answer:

Step-by-step explanation:

Given data

Total units = 250

Current occupants = 223

Rent per unit = 892 slips of Gold-Pressed latinum

Current rent = 892 x 223 =198,916 slips of Gold-Pressed latinum

After increase in the rent, then the rent function becomes

Let us conside 'y' is increased in amount of rent

Then occupants left will be [223 - y]

Rent = [892 + 2y][223 - y] = R[y]

To maximize rent =

$\frac{dR}{dy}=0\\=2(223-y)-(892+2y)=0\\=446-2y-892-2y=0\\=-446-4y=0\\y=\frac{-446}{4}=-111.5$

Since 'y' comes in negative, the owner must decrease his rent to maximixe profit.

Since there are only 250 units available;

$y=-250+223=-27\\\\maximum \,profit =[892+2(-27)][223+27]\\=838 * 250\\=838\,for\,250\,units$

Optimal rent - 838 slips of Gold-Pressed latinum

8 0

3 years ago

What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

7 0

3 years ago

Alaina is selling wreaths and poinsettias for her chorus fundraiser. Wreaths cost $27 each poinsettias cost $20 each. If she sol

sleet_krkn [62]

Answer:

20$ × 15 = 300

543- 300= 243

243÷ 27= 9

she sold 9 wreaths

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A 3-foot piece of wire costs $0.76. What is the unit price, rounded to the nearest cent?

Vadim26 [7]

divide total cost by length:

0.76 / 3ft = 0.2533 cents per foot

rounded to nearest cent = 0.25 cents per foot

7 0

3 years ago