Answer:
54
Step-by-step explanation:
Given f(c)=6(1-x)what is the value of f(-8)
You plug the value in. f(-8)=6(1--8)
f(-8)=6(9)
=54
Please mark Brainliest!
9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?
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[tex]f(x) = 5x - 4[/tex]
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[tex]f(2a) = 5(2a) - 4[/tex]
[tex]f(2a) = 10a - 4[/tex]
[tex]156 = 10a - 4[/tex]
[tex]10a - 4 = 156[/tex]
Add sides 4
[tex]10a - 4 + 4 = 156 + 4[/tex]
[tex]10a = 160[/tex]
Divide sides by 10
[tex] \frac{10a}{10} = \frac{160}{10} \\ [/tex]
[tex]a = 16[/tex]
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It costs $20 for 4 t shirts. Find the cost of 1 t shirt.
Consider the line 4x+2y=-7.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Answer:
To find slop from the given equation,
Slope (m) =
[tex] \frac{ - \: cofficients \: of \: x }{cofficient \: of \: y} [/tex]
So, slope of this equation is - 2
For perpendicular case,
M1 . M2 = - 1
Thus, m2 = 2 ( for this equation)
Similarly,
For parallel case,
M1 = m2
Thus, m2 = - 2 ( for this equation)
Keep asking sir/maamPeyton is collecting data on the lunch habits of students at Hyattsville Middle School. In one class, 14 students bring lunch from home, and 20 buy a school lunch. Hyattsville Middle School has 1700 students. From the data collected, how many students would Peyton predict would buy a school lunch? *
Answer:
Answer: Around 1000 students would buy a school lunch.
Step-by-step explanation:
We know that in one class, 14 students bring lunch from home, and 20 buy lunch in the school. This will be our sample.
In total we have 20 + 14 = 34 students, this will be our 100%.
The percentage of students that bring lunch from home can be estimated as the quotient between the number of students that bring lunch from home and the total number of students, times 100%.
p1 = (14/34)*100% = 41.18%
And the percentage of students that buy lunch at school can be computed in the same way:
p2= (20/34)*100% = 58.82%
Then, out of the 1700 students in middle school, we can estimate that around 58.82% of them will buy lunch in the school.
Then the exact number will be:
N = (58.82%/100%)*1700 = 1000
Around 1000 students would buy a school lunch.
You have a 20% off coupon to use at the store. Your total was $80 before the discount. H
ow much do you need to pay?
A) $16.
B) $60.
C) $64.
D) $100
Answer:
C) $64
Step-by-step explanation:
(80 x 20)/100 = $16.00
Final Price:
80 - 16.00 = $64.00
plz help asap!!!!!!!
Answer:
A
move the numbers around and you'll get it
CAN SOMEONE PLEASE HELP ME
Find the equation of the following set of points. Then give the slope of a line
Perpendicular to the found equation.
{(1, 6), (3,-4)}
Sam has started mowing lawns to save money for a new bike that costs $190. He charges $20 per hour for mowing lawns, and $35 per hour for gardening. However, he has to pay his dad $120 for the use of his lawnmower. Which of the following equations could be used to find the number of hours Sam has to work to buy his bike if m represents the number of hours he mows lawns, and g represents the number of hours he spends gardening? Group of answer choices
Answer:
310 = 20m + 35gStep-by-step explanation:
As per give we have
Earning = 20m + 35gSpending =$120Target amount = $190The equation to consider all is
190 = 20m + 35g - 120 ⇒ 310 = 20m + 35gSo correct option is the second one
Answer:
310=20m+35g
Step-by-step explanation:
i just took the test and got it right.
Which is the graph of x298.6? ?
十十十十十十十一
95 6 97 98 9 100 101 102 103
0
十十十十十十十十
5 96 97 8 9 100 01 102 103
||||-+十十一
95 6 7 8 9 100 100 10 103
|||| + ++ +++
95 6 7 8 9 100 101 102 103
Answer:
A
Step-by-step explanation:
because I remember this question in the quiz I had a while ago
Answer:
The first one
Step-by-step explanation:
Bcs when u have a closed circle is when is less or equal to, and an open circle means greater/less to. And you have a closed bcs is less or equal to. So u look in the answers, you can already take two answers out which are the 2 and the 3 bcs they are open circle. Then x ≥ 98.6, then x is bigger than the 98.6 so the arrow would go to the right. And the answer would be first one
(How to do that in an easier way, Look at this ≥, the pointy side is aiming in the right so the arrow will go always to the right, THIS ONLY WORKS WHEN THE LETTER IS IN THE LEFT {EX. y ≤ 19, the arrow will be pointing in the left.)
PLS IF IT HELPED GIVE ME BRAINLIEST
HAVE A GOOD DAY
Can someone help me with this math problem
Answer:
$14.00 per pound for A and $12.50 per pound for B and B is offering the better one since it has a lower cost per pound
Step-by-step explanation:
Answer:
Brand A is $14
Brand B is $12.5
Brand B is offering the better value. I know this because when you get the unit rate for Brand A it is $14. When you get the unit rate for Brand B you get $12.5. So You pay less money for Brand B then Brand A.
Step-by-step explanation:
For brand A you need to first divide 70 by 5 which equals to 14
Then you divide 105 by 12 which equals 12.5
The Last problem i gave to you in the answer box.
Hopefully you understood everything.
Have a good day
If the point (2,3) lies on the line 4y = ax +5 , then a -
(a) 7/2
(b) 1
(o) -2
(d) none of these
Answer:
B
Step-by-step explanation:
Determine the slope of the line that passes through the points M(-3,5) and N(1,8). Represent the slope in decimal form.
Answer:
0.75
Step-by-step explanation:
y²-y¹/x²-x¹
8-5/1-(-3)
3/4
=0.75
Brainlest to whoever can tell me what pi stands for
Hi!
Pi: The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159.
Hope this Helps!
Yours Truly,
~~~PicklePoppers~~~Can ya help me
PLEASE EXPLAIN
Answer: D
Step-by-step explanation:
The point in the grid if you divide by 2 will give you the prime points. Also it flips over the y axis.
How can we create equations in two variables to represent relationships between quantities
Answer:
Create equations in two or more variables to represent relationships between quantities (linear functions) Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.
Step-by-step explanation:
HELP ME PLEASE 40 POINTS
Answer: abd=50
Step-by-step explanation: bc angel 3 is 80 that means angel 2 is one hundred and abc is the same as angel tow because the two lines are so ABC is 100 and line segment BC is bisecting ABC so you divide ABC by two and get 50
[tex]\pi - 1[/tex]
rational or irrational
The table shows a linear function.
Which equation represents the function?
Pls help me answer this quick!!
Answer:
line 1 and 2 I think sorry if I'm wrong
-5x - 5y = 10 ???
6x + 3y = -30 ????
4x + y = -2 ??
x + y = 1 ???
what is X and Y !!
What is the percent gain ???
Answer:
70%
Step-by-step explanation:
The answer also is whatever the bears tell you because they are always rite.
who walks at a faster rate: someone who walks 60ft in 10sec or someone who walks 42ft in 6sec
Answer:
42 ft in 6 seconds
Step-by-step explanation:
The person whom walks a greater distance in lees time is faster
If water flows through a pipe at a rate of 6 milliliters per hour, how wil I express this rate of flow in pints per day?
Answer:
0.304 pints per day
Step-by-step explanation:
Here, we want convert
if 6 milliliters flow in an hour , then in a day which is 24 hours, the amount that will flow is 24 * 6 = 144 milliliters in a day
so we need to convert this to pint
mathematically;
1 pints= 473.176 ml
x pints = 144 ml
x =
144/473.16 = 0.304 pints per day
PLEASE HELP LINEAR EQUATIONS!!
3(2x-5)=-15
Answer:
x=0
Step-by-step explanation:
Divide both sides by the numeric factor on the left side, then solve.
3(2x−5)=−15
Step 1: Simplify both sides of the equation.
3(2x−5)=−15
(3)(2x)+(3)(−5)=−15(Distribute)
6x+−15=−15
6x−15=−15
Step 2: Add 15 to both sides.
6x−15+15=−15+15
6x=0
Step 3: Divide both sides by 6.
6x/6 = 0/6
x=0
Hope this helps :)
Answer:
2x-5= -3x times(x) 3 is -9
Step-by-step explanation:
PEMDAS
Find the area of the figure. (Sides meet at right angles.)
3 in
s in
5 in
9 in
8 in
Answer:
Area is 69 in^2
Step-by-step explanation:
the big square is 9*9=81
the small rectangle is 4*3=12
81- 12= 69 in^2
5.
As shown in the diagram below, lines m and n are
cut by transversal p.
р
m
n
7
2
If mZ1 = 4x + 14 and mZ2 = 8x + 10, lines m
and n are parallel when x equals
A. 1
B. 6
C. 13
D. 17
The value of x is 13 if lines m and n are parallel and lines m and n are cut by transversal p.
What is linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
As we can see in the figure, the lines m and n are cut by transversal p.
Then the sum of angles mZ1 and mZ2 is equal to 180 degree.
4x + 14 +8x + 10 = 180
12x + 24 = 180
12x = 156
x = 13
Thus, the value of x is 13 if lines m and n are parallel and lines m and n are cut by transversal p.
Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ2
Solve the equation below for a
Answer:
imcomplete question
Step-by-step explanation:
NEED HELP ASAP
FIND X AND Y
WILL GIVE BRAINLEST
Answer:
X=3 Y=12
Step-by-step explanation:
sorry if i got it wrong xp
. A person weighing 120 pounds has about 20 pints of blood in their body. Which equation below represents the relationship between pints of blood, b, to a person's weight, w?
Answer:
[tex]w = 6b[/tex]
Step-by-step explanation:
Given
[tex]b = blood[/tex]
[tex]w = weight[/tex]
[tex]b = 20; when\ w = 120[/tex]
Required
Determine the equation that binds both parameters
First, we need to determine the constant of proportionality using:
[tex]w = k * b[/tex]
Where k represents the constant.
Substitute 120 for w and 20 for b
[tex]120 = k * 20[/tex]
Divide both sides by 20
[tex]6 = k[/tex]
[tex]k = 6[/tex]
Using the same formula, substitute 6 for k
[tex]w = 6 * b[/tex]
[tex]w = 6b[/tex]
Hence:
The equation is represented as [tex]w = 6b[/tex]