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Scorpion4ik [409]
3 years ago
6

Sebastian received 200 in holiday presents.He deposited 70% of that money in his bank account. How much did he put his bank acco

unt?
Mathematics
1 answer:
VashaNatasha [74]3 years ago
7 0

Answer:

$140 in the bank account

Step-by-step explanation:

0.70 (or 70%) of $200 = 140

70% of 100 = $70

$70 x 2 = $140

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(a)It takes 29 pounds of seed to completely plant a 4 -acre field. How many acres can be planted per pound of seed?
asambeis [7]
(a) You can plant 7 1/4 acres per pound of seed
(b) Isabel takes 7 minutes to run a mile
5 0
3 years ago
A hot air balloon is descending at a rate of 287 feet per minute.
faust18 [17]

Answer:

Please check the explanation.

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the rate of change or slope
  • b is the y-intercept

A hot air balloon is descending at a rate of 287 feet per minute.

Thus, the rate of change m = -287

The negative sign indicates that a hot air balloon is descending.

Let y be elevation.

Let x be the time (in minutes)

As there is no mentioning of the initial height.

Thus, the y-intercept b = 0

now substituting m = -287 and b = 0

y = mx + b

y = -287x + 0

y = -287x

In order to determine the total change in elevation of the balloon in 4 minutes, we need to substitute x = 4 in the equation y = -287x.

Thus, the total change in elevation of the balloon in 4 minutes will be:

y = -287x

y = -287(4)

y = -1148 feet

The negative sign indicates that that the elevation is decreasing.

8 0
3 years ago
The table below shows the number of students in th
Sphinxa [80]
The answer is c 8 in each row
6 0
2 years ago
In an experiment Tom drops 12 drawing pins onto a hard floor. He does the experiment 10 times and counts how many pins land 'poi
Phoenix [80]

Answer:

a) 0.35

b) 420 drawing pins

Step-by-step explanation:

a) The question relates to the relative frequency of the pins pointing up which is found by the formula as follows;

Relative \ frequency = \dfrac{Number \ of \ successful \ trials }{Total \ number \ of \ trials}

The total number of pins land 'point up' = 3 + 5 + 6 + 2 + 4  + 7 + 3 + 3 + 4  + 5

The total number of pins land 'point up' = 42 successful trials

Total number of trials = 12 × 10 = 120 trials

Relative \ frequency = \dfrac{42 }{120}=  \dfrac{7}{20}

Due to the large number of trials, the relative frequency ≈ Probability and the probability that a single pin will land point up = 7/20 = 0.35

b) Given that the number of trials now = 12 × 100 = 1200, we have;

The expected number of drawing pins in total that would land point up = 0.35×1200 = 420 pins.

7 0
3 years ago
I don’t get the kind of math that’s called averages
nignag [31]

Answer:

it's known as statistics

mean - The mean is what most people mean when they say 'average'. ...

mode - The mode is the number in a set of numbers which occurs the most. ...

median - The median of a group of numbers is the number in the middle, when the numbers are in order of magnitude.

Step-by-step explanation:

8 0
2 years ago
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