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3 years ago

Please help me with number five write an inequality thank you :)

Mathematics

1 answer:

Igoryamba3 years ago

3 0

Esecially the problem is 3x +x < 160

To find this out we first need to combine like terms

4x<160

Then get rid of the coefficient. In this problem, we divide by 4

x<40

So Rachel has to be less then 40, and Stephanie has to be less than 120.

Any questions?

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Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

-Dominant- [34]

Let

x--------> the number of children

y------> the number of teenagers

z------> the number of adults

we know that

$2x+3y+5z=1,950$ ------> equation A

$x+y+z=570$ -----> equation B

$y=\frac{3}{4}x$

$x=\frac{4}{3}y$ -------> equation C

Substitute equation C in equation A and equation B

$2[\frac{4}{3}y]+3y+5z=1,950$

$\frac{17}{3}y+5z=1,950$ --------> equation D

$[\frac{4}{3}y]+y+z=570$

$\frac{7}{3}y+z=570$ --------> equation E

Multiply equation E by $-5$

$-\frac{35}{3}y-5z=-2,850$ --------> equation F

Adds equation D and equation F

$\frac{17}{3}y+5z=1,950\\\\-\frac{35}{3}y-5z=-2,850\\\\---------\\\\-\frac{18}{3}y=-900\\\\y=3*900/18\\\\y=150\ teenagers$

therefore

<u>the answer is the option</u>

$150\ teenagers$

4 0

2 years ago

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Please help! 5/20, will give brainliest. I do not tolerate spam answers!

notka56 [123]

This one can be factored.

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3 years ago

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A payday loan company charges a $35 fee for a $350 payday loan that will be repaid in 19 days. Treating the fee as interest paid

Naily [24]

Answer:

192.1%

Step-by-step explanation:

The formula for the amount of interest is ...

i = Prt . . . . . where i is the interest amount, P is the principal, r is the annual rate, and t is the number of years. (Here, we have a fraction of a year.)

Solving for the rate, we have ...

r = i/(Pt)

For "exact" interest, we use 365 days in the year. So, for a time of 19 days of 365, the interest rate is ...

r = $35/($350·19/365) ≈ 1.921 = 192.1%

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2 years ago

T is your daughter's birthday and you are preparing a family meal. The joint of meat needs to be cooked for 30 minutes per 500 g

Basile [38]

2.5kg is 2,500g
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170 minutes

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2 years ago

Is the graph a linear function , nonlinear , function , or relation

Irina-Kira [14]

It is a linear function , Option A is the right answer.

The missing graph is attached with the image

<h3>What is a Linear Function ?</h3>

A linear function is a function that can be represented by the equation

y = mx +c

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From the graph it can be seen that it is following a straight line pattern and therefore it can be represented by y = mx +c and

Therefore it is a linear function , Option A is the right answer.

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