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myrzilka [38]
2 years ago
13

Which expression gives the best estimate of 45 percent of 76?

Mathematics
2 answers:
zaharov [31]2 years ago
6 0
45 percent of 76= 34.2
Igoryamba2 years ago
6 0

Answer:The answer is 1/2(80)

Step-by-step explanation:I took the test!!

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Keiko surveyed people with cell phones. Ages in years = a Texts they send per day = t He drew a best-fit line and determined its
tigry1 [53]

Answer:

  68 texts per day

Step-by-step explanation:

The description of the variables in the equation tells you that you want to find t (texts sent per day) for the given value of 'a' (age in years).

__

Substitute the number (15) for the variable (a) and do the arithmetic:

  t = -1.63a +92.14

  t = -1.63(15) +92.14 = -24.45 +92.14

  t = 67.69

Keiko's trend line estimates a 15-year-old would send about 68 texts per day.

7 0
2 years ago
A thearte ticket costs £63 plus a booking fee of 3%<br> what is the total price of the ticket
ira [324]

Answer:

the total price is 64.89

Step-by-step explanation:

63 / 100 =

0.63 * 103 = 64.89

3 0
3 years ago
Read 2 more answers
An elevator starts on the 100th floor. It descends 4 floors every 10 seconds. At what floor will the elevator be 60 seconds afte
Artyom0805 [142]
So is 4 floors / 10 seconds
If you have 60 seconds you can multiple 10 by 6 because 10×6=60
so you also have to multiple 4 by 6
4×6=24
and because it's descending it's 100-24= 76
8 0
3 years ago
Read 2 more answers
Solve for x: 6(4x+5)=3(x+8)+3 round to nearest hundredth
Hitman42 [59]
Solve for x by simplifying both sides of the equation then isolating teh varible.
your answer = - 1/7
3 0
3 years ago
Solve the quadratic by factoring 4x2+x=-7x-3
DedPeter [7]

Answer:

x = -3/2

x = -1/2

Step-by-step explanation:

4x^2 + 8x + 3

4x^2 + 2x + 6x + 3

2x(2x+1) + 3(2x+1)

(2x + 3) (2x + 1)

x = -3/2

x = -1/2

4 0
2 years ago
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