All categories

2 years ago

I need help with this, please!

Mathematics

2 answers:

Karo-lina-s [1.5K]2 years ago

6 0

Answer:

D. x≥3 

Step-by-step explanation:

☜☆☞ given equation..... 3x-1 ≥ 8

–» 3x ≥ 8+1

–» 3x ≥ 9

–» x ≥ 9÷3

–» x ≥ 3

Kruka [31]2 years ago

5 0

Answer:

D x > 3 because you take the 1 from the original equation and add it to the other side so you get 3x > 9. After that you divide both sides by 3 and get x > 3

You might be interested in

Solve in quadratic formula (show work) <img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B5x%2B1%3D0" id="TexFormula1" titl

olga2289 [7]

Answer:

x= −5±√17/4

Step-by-step explanation:

6 0

2 years ago

At the grocery store, you want to get two things. You want a gallon of milk, which costs $2.79. You also want a loaf of bread, w

Olenka [21]

Answer:

this is so easy haha am i missing a picture or smth? anyways just add the two prices together (milk and bread) to get $4.78

4 0

2 years ago

In a restaurant there are 3 choices for appetizers, 6 choices for entrees, and 4 choices for desserts. How many different meal c

Vlad1618 [11]

The correct answer is B. 72 because you can multiply 3*6*4 to represent every combination possible.

5 0

2 years ago

How do i find the slope of a line that passes through a given point and is parallel or perpendicular to another given point?

elena-14-01-66 [18.8K]

There's no such thing as parallel or perpendicular "to a point". A problem like that
will always want the new line to be parallel or perpendicular to another line.

-- If the new line is parallel to the given line, then they have the same slope.

-- If the new line is perpendicular to the the given line, then the slope of the
new line is [ 1 / slope of the given line ].

In either case, you now have the slope of the new line and a point on it.
From there, you should have no trouble finding its equation.

5 0

2 years ago

Read 2 more answers

On a math test, Johnny made a raw score of 95 on a 40 question test. The correct answers were given 5 points each while incorrec

Sidana [21]

X - the number of questions he answered correctly
y - the number of questions he answered incorrectly

There were 40 questions on the test.
$x+y=40 \\ y=40-x$

The correct answers were given 5 points each, the incorrect answers were given -2 points each. He made a score of 95.
$5x-2y=95 \\
-2y=95-5x \\
y=-\frac{95}{2}+\frac{5}{2}x
$

Set 40-x and (-95/2)+(5/2)x equal to each other:
$40-x=-\frac{95}{2}+\frac{5}{2}x \\
-x-\frac{5}{2}x=-\frac{95}{2}-40 \\
-\frac{2}{2}x-\frac{5}{2}x=-\frac{95}{2}-\frac{80}{2} \\
-\frac{7}{2}x=-\frac{175}{2} \\
x=-\frac{175}{2} \times (-\frac{2}{7}) \\
x=\frac{175}{7} \\
x=25$

Johnny answered correctly 25 questions.

8 0

2 years ago