Answer:
-60
Step-by-step explanation:
43 - 103
Identify the domain, range and x-intercept of the function below.
What is the value of the expression 3x+9 if x=6
Answer:
27
Step-by-step explanation:
3(6)=18
18+9=27
Answer:
27
Step-by-step explanation:
You would use PEMDAS to solve this equation, P (parenthesis) E (exponates) M (multiply) D (divide) A (add) S (subtract). The way you use this is by following the steps in the order that you would spell PEMDAS, so 3x+9 would be 3•6+9. So look at the equation 3•6+9, so what would we use first? do we have parenthesis? No, Do we have exponents? No, Do we have multiplication? Yes, so multiply 3 and 6 = 18. Now the equation will look like this 18+9 = 27.
Hope this helps!
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Sunita is buying some fabric. The total yardage of the fabrics is about 13 yards. Which sum is about 13?
Answer:
13*3=39ft (if thats what ur looking for)
Step-by-step explanation:
I need help with solving systems of linear equations through elimination.
1.) 8x = 3y + 38
24= 6y + 9x
a. all real numbers
b. (4,-2)
c. (4,-4)
d. (6,3)
2.) 6 = 2x + y
7x = 3 - 3y
a. (15,-36)
b. (-5,6)
c. (0,0)
d. (-15,36)
3.) 11x = 5 + 10y
7y = -2x +45
a. (-5,10)
b. (5,5)
c. (14, -4)
d. No solution
Answer:
See explanation
Step-by-step explanation:
8x = 3y + 38
24= 6y + 9x
Rearrange;
3y - 8x = -38 * 2 -------(1)
6y + 9x = 24 * 1 -------(2)
6y - 16x = -76 -------(3)
6y + 9y = 24 -------(4)
Subtract (4) from (3)
-25y = -100
y= 100/25
y = 4
Substitute y =4 into(1)
3y - 8x = -38
3(4) - 8x = -38
12 -8x = -38
-8x = -38 - 12
x = 50/8 = 6 2/8
2) 6 = 2x + y
7x = 3 - 3y
Rearrange;
2x + y = 6 * 3 --------(1)
7x + 3y = -3 * 1 --------(2)
6x + 3y = 18 ---------(3)
7x + 3y = -3 ---------(4)
Subtract (4) from (3)
-x = 21
x = -21
Substitute x = -21 into (1)
2x + y = 6
2(-21) + y = 6
-42 + y = 6
y = 6 + 42
y = 48
3)
11x = 5 + 10y
7y = -2x +45
Rearrange
11x - 10y = 5 * 2 ---------(1)
2x + 7y = 45 * 11 ---------(2)
22x - 20y = 10 --------(3)
22x + 77y = 495 --------(4)
Subtract (4) from (3)
-97y = -485
y = 5
Substitute y =5 into (1)
11x - 10y = 5
11x - 10(5) = 5
11x - 50 = 5
11x = 5 + 50
11x = 55
x = 55/11
x = 5
greg wants to buy a video game.the game is 50% off and the original price is $40.00how much will greg have to pay for this video game
Answer:
its 4.00%
Step-by-step explanation:
-4 > -2n
What could n be??
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
n>2
Interval Notation:
(2,∞)
What value of y makes this true?
25 - y< 15
Answer:
Anything that is 11 or greater
Step-by-step explanation:
please make brainliest
Answer:
y is greater than 10
Step-by-step explanation:
(10, undefined)
What does modal,median and mean, mean
Answer:
Mode is the number that occurs the most in the data
the median is when you line up all the numbers in order and the median is the middle one
mean is the average: add all the numbers in the data together and then divide it by the amount of numbers
There are 38 students in Mr. Reynolds math class and 20 are boys.If a student is selected at random what is the probability that a girl is selected?Give the answer as a fraction in simplest form.
Answer:
9/19
Step-by-step explanation:
if 20 students are boys, then the remaining students are girls. 38-20 = 18
There are 18 girl students.
18/38 can be simplified to 9/19
Answer:
9/20
Step-by-step explanation:
Please Answer 1 and 2. Giving a lot of points!
Answer:
Option B871.5 feetStep-by-step explanation:
Q1
∠PTQ + ∠QTS = ∠PTS, angle addition postulate
∠PTS is a straight line, therefore equals to 180°
Correct choice is:
B. The angles add to 180°Q2
1 inch → 83 feet ⇒10.5 inches → 10.5*83 feet = 871.5 feetHOWDY;)
1.Option B
2.871.5 feet
Q 1
PTQ + QTS =PTS,angle addition postulate
PTS is a straight line,therefore equals to 180°
Correct choce is:
B angles add to 180Q2
1 inch > 83 feet >
10.5 inches > 10.5*83 feet = 871.5 feetla potencia de un motor Mercedes Benz es de 120 Hp,(1Hp= 746 w) ¿ que fuerza realiza el motor para que el auto alcance una velocidad de 30m/s.
prrr favor ayudame
Answer:
3627181992838(1331)323-242_4224$78
HELP PLEASE
Gina has saved $385 for music lessons. She plans to spend $35 per month 5 points
on lessons. This can be represented by the equation y = 385-35x where y
is the amount of money she has left and x is the number of months she
has been taking music lessons. What is the x-intercept? What does the x-
intercept of this function mean in the context of this situation?
Answer:
11, the amount of time it'll take for her to run out of money for music lessons
Step-by-step explanation:
THe x intercept is where y=0
to solve this we can just plug in 0 for y and solve for x
we have
0= 385-35x
35x=385
x=11
Answer:
x- intercept is when y = 0
y = 385 - 35x0 = 385 - 35x35x = 385x = 385/35x = 11This is the point (11, 0), this is the indication that after 11 months Gina will have spent all money saved.
I WILL MARK U BRAINLIEST 5TH GRADE MATH PLEASE! HEPL!!!!
Answer:
volume of contaber= 4*4*5
=80cm cube
volume of box=4*2*1
=8cm cube
she can pack box in contaner= volume of continer/ volume of box
=80/8
=10 box
Answer:
10
Step-by-step explanation:
Is a+b+0=0+a+b commutative property of addition?
(97 - 16) (3x + 11) (7x - 5)
Answer:
1701x^2+5022x−4455
Step-by-step explanation:
Find the midpoint of the segment with the following endpoints.
(8, 7) { and } (4, 3)
Answer:
(6, 5)
Step-by-step explanation:
midpoint ={ (8+4)/2, (7+3)/2}
(12/2, 10/2) = (6,5)
D 5/3
Couldn’t fit in pic
Answer:
B
Step-by-step explanation:
You can just move upper y equation and it will be:
6x+3(3x-5)=15
6x+9x-15=15
15x-15=15
15x=30
x=2
Answer:
Try the website, MATH
WAY
type in your equations
complete the exponent chart
I'll do the first 6 rows to get you started.
===========================================
In row 1, we have the number [tex]2^3[/tex] which is the same as writing 2^3
The base is 2 and the exponent is 3. Think of "base" as in "basement" to remember that the base is under the exponent. The exponent tells us how many copies of the base to multiply out. In this case, we have three copies of the base "2" multiplied to get 2*2*2 = 8
============================================
In row 2, we have the number 3^2. The base is 3 and the exponent is 2.
We can say 3^2 = 3*3 = 9. We have two copies of the base multiplied. Think of a 3 inch by 3 inch square that has area of 9 square inches.
============================================
Row 3:
The number 5^4 means 5^4 = 5*5*5*5 = (5*5)*(5*5) = 25*25 = 625
The base is 5 and the exponent 4 tells us how many copies of the base to multiply.
============================================
Row 4:
We aren't given the number like in the earlier rows. But we can see that the base is 6 and the exponent is 2. So the number to fill in that first blank is 6^2
The expanded notation would be 6*6 because the exponent tells us how many copies of the base to multiply out.
The standard notation is 36 because 6*6 = 36.
============================================
Row 5:
This time we don't have an exponent, but we have the base and we have the expanded notation.
The expanded notation of 8*8*8 means the base is 8 and the exponent is 3
So 8^3 = 8*8*8 = 512
We'll have 8^3 to fill in the first blank of row five, 3 fill in the next blank, and finally 512 fill in the last blank.
============================================
Row 6:
We have six copies of '9' multiplied together
This tells us we have the number 9^6. The base is 9 and the exponent is 6
Use your calculator to determine that 9^6 = 9*9*9*9*9*9 = 531441
============================================
I'll let you do the rest of the remaining rows.
Determine whether each pair of figures is similar. If so, write the similarity statement and scale factor. If not, explain why. Number 1 and 2 on the second part.
9514 1404 393
Answer:
JKLM ~ QRSP, scale factor 0.6ΔABC ~ ΔUVT, scale factor 1.5Step-by-step explanation:
We can write the similarity statements by naming vertices in order of increasing numbers of arcs, starting with the one having a single arc. Then we can express the side lengths as a reduced ratio, in the same order.
1. JKLM ~ QRSP
JK : KL : LM : MJ = 20 : 15 : 24 : 25
QR : RS : SP : PQ = 12 : 9 : 14.4 : 15 = 20 : 15 : 24 : 25 (same ratios)
The scale factor is 12/20 = 0.6.
__
2. ΔABC ~ ΔUVT
AB : BC : CA = 16 : 14 : 12 = 8 : 7 : 6
UV : VT : TU = 24 : 21 : 18 = 8 : 7 : 6 (same ratios)
The scale factor is 24/16 = 1.5.
What value of x will make the equation below true?
8x=4x+16
Answer:
x=-2
Step-by-step explanation:
Find x. (The picture has the info)
Answer:
X=5
Step-by-step explanation:
3x+9 is twice of 12 (24). 24-9=15, and 3*5=15, so x=5.
Explain your answer !
( WILL GIVE BRAINLST)
Answer:
Its A
Step-by-step explanation:
12 x 25 + 2-10 what’s is the answer bishesss
Answer:
292
Step-by-step explanation:
Answer:
292
Step-by-step explanation:
12X25=300
300+2=302
302-10=292
PEMDAS
also used calculator
look it up on internet
8 1/5-2 7/8 Fractions math
Answer:
5 13 /40
Step-by-step explanation:
hope this helps :))
Write two decimals with a product close to 6.3
Two decimals with a product close to 6.3 are, 2.5 and 2.52
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
To find Two decimals with a product close to 6.3.
Now, Let one decimal number is, 2.5
Hence, Second number is,
⇒ 6.3 / 2.5
⇒ 2.52
Hence, Two decimals with a product close to 6.3 are, 2.5 and 2.52
Learn more about the multiplication visit:
https://brainly.com/question/10873737
#SPJ3
what is x + 10 - (2x +5)
Answer:
−x+5
Step-by-step explanation:
Answer:
-x + 5
Step-by-step explanation:
-2x + x = -x
10 -5 = 5
if lana bought cigarettes for $3.00/pack X 7 packs/week X 52 weeks/year X 10 years, how much would it be?
EASY QUESTION OF THE DAY (whoever answers first gets brainly!)
Answer:
she would be spening over a thousand dollars
Step-by-step explanation:
Asnwer:
10,920$
Step-by-step explanation:
So if 3.00$ is for one pack and she wants 7 packs then it would be 21$.
But if we also multiply it by 52 weeks then that would be 1,092$.
Then if she's buying that for 10 years then we multiply 10 x 1,092$ which would equal 10,920$
(I'm not completely sure if I did the math right but I'm 90% sure I did because that's what the question is asking.)
Write an equation in standard form that has a slope of - and a y-intercept of -2.
Y +
Review progress
Question 2
of 12
Answer:
y= 3x-2
Step-by-step explanation:
standard form
y= mx + c
c represents y intercept
m represents slope or gradient
y= 3x-2
The slope is 3 and the y intercept in -2
Ryan is studying. The number of minutes he has studied varies directly with the number of calories he has burned. See the
graph below.
How many minutes does ryan study per calorie burned?
What is the slope of this graph?
Answer:
0.1 minute per calorie burned. Slope is up 0.1 , right 1. or 0.1/1
Step-by-step explanation:
You find a point such as (10,100) or (20,200) then you divide the number of minutes by calorie burned to get minutes per calorie burned.