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3 years ago

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Mathematics

2 answers:

loris [4]3 years ago

6 0

Answer:

31.41

Step-by-step explanation:

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>

artcher [175]3 years ago

3 0

Answer:

62.38

Step-by-step explanation:

1. decimal with 2 decimal places (.XX)

2. less than 100 (XX.XX)

from here, let's assign variables to our number: AB.CD

C = 1,3,5

A = 3B

D = A + B (must be less than 9)

A = 2C

with these limitations, we can extrapolate that A must be divisible by both 2 and 3. what number less than 9 has these factors? <u>6</u>

A = 6

this means that B = 2 and C = 3

and, now with A and B, D = 8

so, putting them all together: AB.CD = <u>62.38</u>

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Wholly didn't know how to simplify 8/16

NemiM [27]

8/16=1/2
You divide the numerator and denominator by 8
I hope this helps!

6 0

3 years ago

Read 2 more answers

Last month, the daily balance in Joana's credit card account was $1,000 for 9 days, $750 for 10 days, $850 for 4 days, and $900

FrozenT [24]

Answer:

<em /> $Average = \$873$ <em />

<em />

Step-by-step explanation:

Given

$1000 for 9 days

$750 for 10 days

$850 for 4 days

$900 for other days

Required

Compute the daily average

First, we need to compute the number of days her balance is $900

Assuming the billing cycle is 30 days;

$Number\ of\ days = 30 - (9 + 10 + 4)$

$Number\ of\ days = 30 - 23$

$Number\ of\ days = 7$

The Average is then calculates using:

$Average = \frac{\sum fx}{x}$

$Average = \frac{1000 * 9 + 750 * 10 + 850 * 4 + 900 * 7}{9 + 10 + 4+ 7}$

$Average = \frac{26200}{30}$

$Average = 873.333333333$

<em /> $Average = \$873$ <em> --- Approximated</em>

3 0

3 years ago

Carys calculates the total amount E, in dollars, that she earns for working h hh hours using the equation E=10h. How many dollar

Monica [59]

if an hour is able to be split up for payment then it will be 1/10 of an hour

6 0

3 years ago

Read 2 more answers

The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a tot

Aneli [31]

Answer:

In mih's school there are 100 boys

While in Ella's school there are 80 boys

Step-by-step explanation:

X*1/5=20

X=100

X*1/4=20

X=80

4 0

3 years ago

3. How many solutions does the system of equations have? 2x=-10y+ 6 and x+5y=3

ozzi

Answer:

<h2>3. Infinitely many</h2>

Step-by-step explanation:

$\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right\\\\(1)\\\text{if}\ a=d,\ b=e,\ c=f,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=5\end{array}\right\\(2)\\\text{if}\ a=d,\ b=e,\ c\neq f,\ \text{then the system of equations has no solution}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=-5\end{array}\right$

$(3)\\\text{if}\ a\neq d\ \text{or}\ b\neq e,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}x-3y=5\\2x-3y=5\end{array}\right$

$\text{We have:}\\\\\left\{\begin{array}{ccc}2x=-10y+6&\text{add 10y to both sides}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}2x+10y=6&\text{divide both sides by 2}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}x+5y=3\\x+5y=3\end{array}\right$

4 0

4 years ago

Help me #no spams.. ​

Help me #no spams..