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3 years ago

Out of 4a>-5 -5<4a -4a<5 5<-4 which ones have the same answer?

Mathematics

1 answer:

diamong [38]3 years ago

7 0

The first two equations are the same. They both mean 4a is greater than -5.

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Julia sells subs for $6 each. How many subs will she need to sell to break even each month based on the costs listed below?

andrey2020 [161]

Answer:

2777.7777... subs

Step-by-step explanation:

11000+400+1300+300=13000

6-1.32=4.68

13,000/4.68

=2777.777777...

3 0

1 year ago

If 2 out of 36 people applaud, and 10 people in a concert hall are applauding, how many people are in the concert hall?

solmaris [256]

46 people are in the concert hall

3 0

3 years ago

Read 2 more answers

A total of 243 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

alina1380 [7]

Answer:

81 adult tickets

Step-by-step explanation:

Step 1:

Set up a system of equations

Since the adult tickets and student tickets add to 243, we can do

$a+s=243$

and the student tickets sold were 2x the adult tickets, we can do

$s=2a$

We can replace s in the first equation adding to 243 with 2a

$a+s(2a)=243\\3a=243\\$

Step 2:

Solve for a. We can divide both sides by 3.

$a=81$

Therefore, there were 81 adult tickets sold.

Step 3:

We can check our work! Since we learned earlier the student tickets are 2x adult tickets, we can multiply 81 by 2 and add that to 81 to see if it equals 243!

$s=2a\\s=2(81)\\s=162$

And...

$162+81=243$

So, 81 must be the answer!

8 0

2 years ago

Read 2 more answers

Keith used the following steps to find the inverse of f, but he thinks he made a error

astra-53 [7]

Answer:

Step-by-step explanation:

$\Large \boldsymbol{} f(x) \ \ inverse \ \ function \ \ (f(x))^{-1} \\\\ y=7x+5 \\\\x=7y+5 \\\\ y=\dfrac{x-5}{7} \ \ or \ \ f(x)^{-1}= \dfrac{x-5}{7}$

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3 years ago

What is a tangent line

Mashutka [201]

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that "just touches" the curve at that point. Leibniz defined it as the line through a pair of infinitely close points on the curve

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3 years ago