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3 years ago

9

This is my sisters homework please help

1 answer:

tankabanditka [31]3 years ago

3 0

Answer: 12n crisp

Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n

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By what percent will a fraction decrease if its numerator is decreased by 85% and its denominator is decreased by 25%??

belka [17]

Answer:

106.67%

Step-by-step explanation:

85% as a fraction is 4/5

25% as a fraction is 3/4

<h2> $\frac{4}{5}$ / $\frac{3}{4}$ = $\frac{16}{15}$ </h2>

Convert 16/15 to a decimal: 1.067

Multiply: 1.067 · 100= 106.67%

4 0

4 years ago

Carla is a waitress at Daybreak Diner and she earns $5 for each hour she works. Last week she earned 148 total including $68 tip

Zigmanuir [339]

Answer: 16 hours

Step-by-step explanation:

Given

Carla earns $\$5$ for each hour she works

Last week she earned $148 total including $\$68$ tip

So, the sum of hourly income and must be equal to the total money earned

Suppose she works for $x$ hours

$\Rightarrow 5x+68=148$

$\Rightarrow 5x=148-68\\\Rightarrow 5x=80\\\Rightarrow x=16\ \text{hours}$

Thus, she works 16 hours last week

5 0

3 years ago

Evaluate 0.53n+5 when n=3

Alex777 [14]

0.53(3) + 5 = <span>6.59
</span><span>6.59 is the answer.
</span>

6 0

3 years ago

Patricia pays $1.19 each to download songs to her MP3 player,if n is the number of downloaded songs, which equation represents t

nikklg [1K]

$1.19 each to download songs
n = number of downloaded songs
C = 1.19n

The answer would be A. C = 1.19n. Hope this helps!

5 0

4 years ago

bryan has some 3 cent stamps and some 4 cent stamps. what is the least number of stamps he can combine so the value of the stamp

SashulF [63]

Answer:

The least number of stamps required is $9$

Step-by-step explanation:

Let the number of $3$ cent stamps be $x$ and $4$ cent stamps be $y$

We have

$3x+4y=33$

The minimum number is obtained when more $4$ cent stamps are used

Here $y$ cannot be greater than $8$ since $\frac{33}{4}$

Substitute $y=8$

$3x+4\times 8=33\\\\3x=1\\\\x=\frac{1}{3}$

Not possible since $x$ is not a fraction

Substitute $y=7$

$3x+4\times 7=33\\\\3x=5\\\\x=\frac{5}{3}$

Not possible since $x$ is not a fraction

Substitute $y=6$

$3x+4\times 6=33\\\\3x=9\\\\x=\frac{9}{3}\\\\=3$

Possible

Hence minimum number of stamps is

$=x+y\\\\=3+6\\\\=9$

5 0

3 years ago