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Mnenie [13.5K]
3 years ago
9

In 45 years, Gabriela will be 4 times as old as she is now. How old is she right now

Mathematics
1 answer:
11111nata11111 [884]3 years ago
7 0

Gabriela is 15 years old right now

(15 and 3 months to be exact)

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The bill for a meal at a restaurant before tax is $84.00. the sales tax rate is 7% and you want to leave a 20% tip based on the
Strike441 [17]
The pree tax amount count as 100%, then there's the 7% tax and lastly the 20% tip. therefore, one would pay (100+20+7)% of $84.00.
127% of $84.00
(127/100) * $84.00 = $106.68
4 0
3 years ago
Find the value of k such that lim-->4 (x^2+x-k)/(x-4) exists
7nadin3 [17]

Answer:

k=20

Step-by-step explanation:

when x approaches 4, the denominator x-4 approaches 0

if the denominator is 0, it means that this is invalid

if the function is a number over 0 when x=4, it represents a vertical asymptote, which means no limit

so the only way possible to let there be a limit is to let the function be 0/0 when we plug in x=4

so x^2 + x - k = 0 when x = 4

4^2 + 4 - k = 0 ==> 20 - k = 0 ==> k = 20

6 0
3 years ago
A Cab charges $1.75 for the flat fee and $0.25 for each mile. Write and solve an inequality to determine how many miles Eddies c
NemiM [27]
1.75 + 0.25x ≤ 15
where x is equal the number of miles.

The key to solving an inequality is just temporarily making the ≤ symbol a =. Then solve for x like any other algebraic equation. Once you find the value of x, you will have solved the inequality. Make sure to add back the ≤ when you are done. 

15 - 1.75 = 13.25
13.25/0.25 = x 
x = 53
add back the ≤
x ≤ 53
This means Eddies can travel up to 53 miles with his $15.
4 0
4 years ago
What is the volume in cubic centimeters of a cube that measures 13 cm wide
Andrei [34K]

Answer:

2197 cubic centimeters

Step-by-step explanation:

13^3=2197

8 0
3 years ago
PLEASE HELP
lozanna [386]
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