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Crank
3 years ago
8

In Jeopardy, if you answer a question

Mathematics
1 answer:
Nata [24]3 years ago
7 0
-150 points cause 200-350= -150
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When Imani walks to school, it takes her one less minute than five times the amount of time it takes her to ride her bike to sch
zmey [24]

The numerical expression that describes the amount of time it takes Imani to walk to school is x = 5y - 1.

<h3>How do we derive a numerical expression?</h3>

Let:

x = amount of time it takes Imani to walk to school

y = amount of time it takes Imani to ride to school = 3 minutes

The numerical expression that describes the amount of time it takes Imani to walk to school can be written as follows:

x = 5y - 1

Since it takes Imani three minutes to ride her bike to school, we can solve for x by substituting y = 3 as follows:

x = (5 * 3) - 1 = 15 - 1 = 14 minutes

Learn more about a numerical expression here: brainly.com/question/14642484.

#SPJ1

6 0
2 years ago
The ratio 20mins to 1 hour can be written in the form 1:n find the value of n.
Sonbull [250]

Answer:

1:3

n=3

Step-by-step explanation:

1 hour = 60 minutes

20:60

20÷20=1

60÷20=3

1:3

4 0
1 year ago
7(-15-3+5-7)×1 step by step ​
olga_2 [115]

Answer:

jshagabwgsbdydjeudjffj

6 0
3 years ago
Barbara made a bad investment. Rather than earning interest, her money is decreasing in value by 11% each week! After just one w
pochemuha

Answer: She started with $160.

It will take 6 weeks before she has less than half of what she originally invested.

Step-by-step explanation:

If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the investment after t weeks.

t represents the number of weeks.

P represents the initial value of the investment.

r represents rate of depreciation.

From the information given,

A = $142.40

r = 11% = 11/100 = 0.11

t = 1

Therefore

142.40 = P(1 - 0.11)^1

142.40 = P(0.89)

P = 142.4/0.89

P = 160

For her to have half of what she invested originally, then

80 = 160(0.89)^t

80/160 = (0.89)^t

0.5 = (0.89)^t

Taking log of both sides to base 10

Log 0.5 = log0.89^t = tlog0.89

- 0.3010 = - 0.051t

t = - 0.3010/- 0.051

t = 5.9

Approximately 6 weeks

5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST AND THANK 
mr_godi [17]
Well, I wasn't down in Georgia for my 7th grade, but my mom told me before that it helps you to see how your progress is. No need to be worried :) You've got this!
4 0
3 years ago
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