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Airida [17]
3 years ago
11

A.70 B.40 C.140 D.20

Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0
The question says that KN bisects JKL. This means that the angles are exactly equal. Thus, we can set the angles equal to each other to solve for x:

x + 30 = 3x - 50
30 = 2x - 50
80 = 2x
x = 40

Your answer is B. 40.
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A softball team won 95% of 120 games. How many games did they win
dmitriy555 [2]

Answer:

114 games

Step-by-step explanation:

0.95 x 120=114

they won 114 games

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3 years ago
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Jeff hikes 1/2 mile every 15 minutes, or 1/4 hour. Lisa hikes 1/3 mile every 10 minutes, or 1/6 hour. How far do they each hike
inessss [21]

Answer:

they each hike 2 miles

Step-by-step explanation:

Jeff: 15=1/2

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6 0
3 years ago
Jackie deposited $315 into a bank account that earned 1.5% simple interest each year.
Brrunno [24]

Answer:

copied from InesWalston expert

Money in the bank account after 3 years will be  $329.18

Step-by-step explanation:

Jackie deposited $315 into a bank account that earned 1.5% simple interest each year for 3 year, while no money was deposited into or withdrawn from the account.

We know that,

i = p.r.t / 100

Where,

i = interest

P = Principal = $315

r = Rate of interest = 1.5% annual

t = time period = 3 years

Putting the values,

i = 315 × 1.5 × 3 / 100 = $14.18

Total money in bank account = Principal + interest = 315 + 14.18 = $329.18

3 0
2 years ago
You drink a beverage with 120 mg of caffeine. Each hour, the caffeine in your system decreases by about 12%. How long until you
uysha [10]

Answer:

  19.44 hours, about 19 hours 26 minutes

Step-by-step explanation:

The exponential equation that describes your caffeine level can be written as ...

  c(t) = 120·(1 -0.12)^t . . . . where t is in hours and c(t) is in mg

We want to find t for c(t) = 10, so ...

  10 = 120(0.88^t)

  10/120 = 0.88^t . . . . . . . divide by 120

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  t = log(1/12)/log(0.88) ≈ 19.4386

It will take about 19.44 hours, or 19 hours 26 minutes, for the caffeine level in your system to decrease to 10 mg.

3 0
3 years ago
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