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Gnoma [55]
3 years ago
8

Food bill:$55 sales tax:8 tip:10%

Mathematics
1 answer:
Romashka [77]3 years ago
4 0

Answer:

$65.34

Step-by-step explanation:

Multiply $55 by 0.08. Then multiply $55 by 0.1. Then add the two.

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Find the area ratio of a cube with volume 125 m to a cube with volume 64 m.
Viefleur [7K]
V=s^3
SA=6s^2
so

125=v
125=s^3
cube root both sides
5=s
A=6(5)^2=6(25)=150 m^2


64=v
64=s^3
cube root both sides
4=s

A=6(4)^2=6(16)=96 m^2

ratio is

150:96=25:16
5 0
3 years ago
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Find the number of palindromes between 10,000 and 99,999 that are divisible by 25
Cerrena [4.2K]

<u><em>20</em> palindromes exist that qualify this criteria rigorously</u>

Examples:

52025, 52125, 52225, 52325, 52425, 52525, 52625, 52725, 52825, 57975 etc.

3 0
2 years ago
Find the range of the following piecewise function.
mash [69]

Answer:

\huge\boxed{[-5;\ -2)\ \cup\ [3;\ 13)}

Step-by-step explanation:

The following piecewise functions are linear functions. The graph of any of them is a line segment.

We just need to calculate the value of the function at each end specified in the brace.

y=3x-2\ \text{if}\ -1\leq x

Substitute x =-1 and x = 0:

x=-1\\y=3(-1)-2=-3-2=-5\\\\x=0\\y=3(0)-2=0-2=-2

Range of this piece is [-5; -2)

y=2x+3\ \text{if}\ 0\leq x

Substitute x =0and x = 5:

x=0\\y=2(0)+3=0+3=3\\\\x=5\\y=2(5)+3=10+3=13

Range of this piece is [3; 13)

Therefore the range of the following piecewise function is:

[-5;\ -2)\ \cup\ [3;\ 13)

Look at the picture.

6 0
3 years ago
How do I place 2/3 times 7 into a whole number?
lorasvet [3.4K]

Answer: round it up to 5

Step-by-step explanation:

2/3 time 7 = 14/3

14/3= 4.6

if the number after the decimal is above 5 you may round up

6 0
3 years ago
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Amy, Doug, and Ginger took a math test. Amy scored 12 points higher than Doug, and Ginger scored twice as many points as Doug. T
lakkis [162]
Amy(A): D + 12
Doug(D):D
Ginger(G):2D
SumOfAll(S)=208 : Total points / sum of all three friends

(D+12)+D+2D=208
D+12+3D=208 - transpose 12 to the right side
4D=208-12 
4D = 196   - divide both sides by 4
D=49
Therefore, Doug scored 49

7 0
3 years ago
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