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MA_775_DIABLO [31]
3 years ago
14

Susie bought 3 pies all for the same price and a snickers bar for $1 Emma bought one of same pies and spent $9 on flowers, they

both spent the same amount, how much did each pie cost
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0
Let x be the price of one pie.

3x + 1 = x + 9
3x + 1 - 1 = x + 9 - 1
3x - x = x - x + 8
2/2x = 8/2
x = 4
The pies cost $4
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For how many values of x: (4.9 cm < x < infinity) is it true that ex = 0?
RUDIKE [14]
E^x is not zero for any finite value of x.

The number of values for which e^x is zero is zero.
5 0
3 years ago
in the six grade 54% of the are boys. there are 189 boys in the sixth grade. what is the total number of the students in sixth g
notka56 [123]

<h2>189 boys is 54%</h2><h2>x is 46%(100-54)</h2><h2>Cross multiply:</h2><h2>189*46%=54%*x</h2><h2>86.94=0.54x</h2><h2>x=161</h2><h2>189 boys 161 girls</h2><h2>350 altogether</h2><h2>Hope this helps plz hit the crown :D</h2>
6 0
2 years ago
Read 2 more answers
Help please with these:
liq [111]

Answer:

18/36 in simplest form is 1/2.

1 5/8 to an improper fraction is 13/8

19/5 to mixed fraction is 3 4/5 in simplest form

Step-by-step explanation:

18 and 36 in share a common denominator of 18. 18 divided on 18 is 1. 36 divided on 18 is 2. so 1/2 is equivalent to 18/36.

1 5/8 equals one whole (8) plus 5. 8 + 5= 13. 13/5 is your answer

19 divided on 5 is 3.8. 3.8 converted to a fraction is 3 and 0.75. 0.75 in fraction form is 4/5. your answer is 19/5 = 3 4/5 or 3 and 8/10.

If this was correct then mark as brainliest.

3 0
3 years ago
Fill in the blank. A​ _______ probability of an event is a probability obtained with knowledge that some other event has already
motikmotik

Answer:

A​ conditional probability of an event is a probability obtained with knowledge that some other event has already occurred.

Step-by-step explanation:

Conditional probability of an event (A) is a probability obtained with knowledge that some other event (B) has already occurred and is denoted as P(A|B).

It satisfies the following equation:

  • P(A|B)=P(A and B) / P(B)

where P(A and B) is the probability of A and B occurring together.

Conditional probability is applied in many areas of Bayesian statistics and machine learning.

3 0
3 years ago
A population of penguins is given by Pt=P0⋅3t5 where t is the time in years, t≥0. How long does it take for the population to tr
PolarNik [594]

Answer:

5 years

Step-by-step explanation:

If the population of penguins is given by the function:

P(t)=P_0\cdot 3^{t/5}

Initial Size =P_0

Triple its Initial Size, P(t)=3P_0

Therefore:

3P_0=P_0\cdot 3^{t/5}\\$Divide both sides by P_0\\3=3^{t/5}\\$Since they have the same base\\1=t/5\\Cross multiply\\t=5

It therefore takes 5 years for the penguin population to triple in size.

5 0
3 years ago
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