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3 years ago

6

PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 answer:

Ratling [72]3 years ago

3 0

Yours is 50 an your friends is 30

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- QUIZ DUE TODAY -

Elena L [17]

Answer:

Step-by-step explanation:

$19.50

-$15.50=

$4.00

1slice of pizza and 1soda is $4

so 2slices of pizza and 2 sodas is $8

$15.50-$8=$7.50

Now you have 3 slices of pizza left

$7.50/3slices=$2.50

1slice of pizza is $2.50

6 0

3 years ago

Read 2 more answers

To begin a bacteria study, a petri dish had 1800 bacteria cells. Each hour since, the number of cells has increased by 15%.

rodikova [14]

Answer:

The exponential function is $C(t)=y(b)^t\ Or\ C(t)=1800(1.15)^1$

Step-by-step explanation:

Given

$t$ be the number of hours.

$y$ number of bacteria cells.

And we know that an exponential function is $C(t)=y(b)^t$ ,where $b$ is a positive real number, and in which the argument $t$ occurs as an exponent

The petri dish has $1800$ bacteria cells we can say that $y=1800$

In the equation as $C$ is function of time and $(t)$ will vary as $1,2,3$ for respective hours.

To find the value of $b$ we have to understand that it is dependent on percent increase if there is increment of $15\%$ then $b=1+15\%=1+\frac{15}{100}=1+0.15=1.15$

So the exponential function will be $C(t)=y(b)^t$ ,plugging the values it will be equivalent to $C(t)=1800(1+0.15)^1$

Check:

$15\% of 1800 =0.15\times 1800=270$

So in first hour the cells will increased by a quantity of $270$ cells.

The number of cells after an hour in the petri dish $=(1800+270)=2070$

That can also be from the formula.

$C(t)=1800(1.15)^1=2070$

So the exponential function is $C(t)=y(b)^t\ Or\ C(t)=1800(1.15)^1$

$y$ will increase exponentially as the value of $t$ increase.

5 0

3 years ago

33.90 divided by 10.2

Amanda [17]

Answer:

3.32352941176

Step-by-step explanation:

I used it in a calculator

6 0

3 years ago

Read 2 more answers

Find the mode if any of the list of data 13, 13, 15, 15, 14, 15,13

mylen [45]

Answer: 13 and 15
The mode is what appears most. So, 13 and 15 appear the most.

8 0

2 years ago

What expression gives the distance between the points 5,1 and 9,-6

notka56 [123]

<u>Answer:</u>

Distance between the points 5,1 and 9,-6 is 8.0622

<u>Explanation:</u>

Given points = (5,1) and (9,-6)

The square root of this is the distance between the points Distance can be calculated

from the expression= $\sqrt{(x 2-x 1)^{2}+(y 2-y 1)^{2}}$

= $\sqrt{(9-5)^{2}+(-6-1)^{2}}$

= $\sqrt{(4)^{2}+(-7)^{2}}$

= $\sqrt{16+49}=\sqrt{65}=8.0622$

Distance (d) from given points = (5,1) and (9,-6) is 8.0622.

3 0

3 years ago