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Vaselesa [24]
2 years ago
11

What is the value of x in the equation −6 + x = −5? 1, 11, −1, −11

Mathematics
1 answer:
goldfiish [28.3K]2 years ago
4 0

Answer:

1 exactly iam genius

₩¥₩

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Use the data in the table to find the median mode, and range of the data.
Artist 52 [7]

Answer:

Median: 2

Mode: 0

Range: 10

Step-by-step explanation:

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3 years ago
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The bill at a restaurant came to $136.40.The customer decided to leave a 15% tip.What was the total bill including tip.
hjlf

Answer:

$156.86

Step-by-step explanation:

To calculate tip, you need to multiply the total bill by the percent tip you are going to leave. In this case the bill is $136.40, and the customer is going to leave a 15% tip. So, you would want to move the decimal place over to the left by 1, which you should get 13.64 as your number. Then divide it in half, which should give you 6.82. Now add 13.64 and 6.82 with the original bill price. If you don't add the 13.64 you would've forgotten the 10% part of the tip. At the end you should get $156.86 as your final bill.

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3 years ago
Half-life of Po-210 is 140 days. If the initial mass of the sample is 5
Anna35 [415]

Answer:

0.625kg

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass <u>after</u><u> </u><u>4</u><u>2</u><u>0</u><u> </u><u>days</u><u> </u>

in order to solve so we can consider the half-life formula given by

\displaystyle f(t) = a {0.5}^{t/T}

where:

  • f(t) is the remaining quantity of a substance after time t has elapsed.
  • a is the initial quantity of this substance.
  • T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

\displaystyle f(420)=5\cdot{0.5}^{420/140}

reduce fraction:

\displaystyle f(420)=5\cdot{0.5}^{3}

By using calculator we acquire:

\displaystyle f(420)=0.625

hence, the remaining sample after 420 days is 0.625 kg

4 0
3 years ago
A jacket is advertised to be 85% off the original price. If the sale price is $102 what is the original price ?
Jobisdone [24]
The answer would prob around $188.70 because .85x102=86.7 so add that to 102 and u get 188.70 but I'm prob wrong and I have a test on this tomorrow 


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4 0
3 years ago
About how many meters is a 40-yard race
Varvara68 [4.7K]

Answer:

36.576 meters or 36.58 meters

Step-by-step explanation:


5 0
3 years ago
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