All categories

2 years ago

PLEASE HELP WILL BE GIVING BRAINLIEST!!! -13+13r≥-2(11-3r)-7

Mathematics

1 answer:

wlad13 [49]2 years ago

7 0

Answer:

$r$ $\geq$ $\frac{-16}{7}$

Step-by-step explanation:

-13+13r $\geq$ -22+6r-7

bring all r and number one oppsite sides

13r - 6r $\geq$ -22-7+13

7r $\geq$ -16

r $\geq$ $\frac{-16}{7}$

mark me as branliest. ty

You might be interested in

A school.Ordered 16 buses for a school trip. Each bus has 26 seats. There are 32 teachers and 368 students. Each bus needs to ha

Talja [164]

Answer:

There should be 2 teachers and 21 students on each bus.

Step-by-step explanation:

6 0

2 years ago

Max has 3 textbooks and 2

Eduardwww [97]

1 Backpack + 3 Textbooks + 2 Notebooks = 10.5 pounds
His Backpack Weighs 2.5 pounds

3 0

3 years ago

Find NMC triangle's perimeter if BO:BK=1:3 and ABC triangle's perimeter is 96

Citrus2011 [14]

Answer:

Step-by-step explanation:

If we assume the triangles are similar and are isosceles, and that BK is an altitude, then we can work the problem.

Triangle OKN will be similar to triangle BKA, so ...

AN : AK = BO : BK = 1 : 3

Then ...

AN : AK : KC = 1 : 3 : 3

In terms of ratio units, ...

AN = 1

AC = 3+3 = 6

NC = 6-1 = 5

This means NC : AC = 5 : 6. The triangle perimeters will have the same ratio.

perimeter(NMC) = 5/6·perimeter(ABC) = 5/6·96

perimeter(NMC) = 80

3 0

2 years ago

How do you write 0.05 as a fraction, in simplest form?<br><br> (BRAINLIEST)

Mkey [24]

Answer: 1/20

Step-by i hope you have a great day

6 0

3 years ago

Read 2 more answers

Express the situation as a system of two equations in two variables. Be sure to state clearly the meaning of your x- and y-varia

expeople1 [14]

Answer:

9 TV ads and 20 radio ads

Step-by-step explanation:

He has $37,000 to spend. He has to sum that amount of money between the TV and radio ads. Each TV ad costs $3000 while each radio ad costs $500, so the equation that represents that is 37000 = 3000x + 500y

The same happens with the amount of voters he needs to reach, the equation is 130000 = 10000x + 2000y

The system that represents this is

$\left \{ {{3000x+500y=37000} \atop {10000x+2000y=130000}} \right.$

And the augmented matrix is

$\left[\begin{array}{cc|c}3000&500&37000\\10000&2000&130000\end{array}\right]$

First we divide the first row by 3000 and the second by 10000:

$\left[\begin{array}{cc|c}1&1/6&37/3\\1&1/5&13\end{array}\right]$

Then we multiply the second row by (-1) and we add the first row:

$\left[\begin{array}{cc|c}1&1/6&37/3\\0&-1/30&-2/3\end{array}\right]$

Now we multiply the second row by -30:

$\left[\begin{array}{cc|c}1&1/6&37/3\\0&1&20\end{array}\right]$

Finally, to the first row we add the second one multiply by (-1/6):

$\left[\begin{array}{cc|c}1&0&9\\0&1&20\end{array}\right]$

So, x = 9 and y = 20

That means 9 TV and 20 radio ads will contact 130,000 voters using the allocated funds

3 0

3 years ago