Answer:
x=4
y=3
Step-by-step explanation:
substitute into one of the equations
9x+17=x+49
x=4
y=4+49
y=53
HELPPPPPP FRENNN HELPPP frenss!!! HURRY
Answer:
x=6 y=2
Step-by-step explanation:
y=2
so 6x+9(2)=-24
6x+18=-24
6x=42
x=6
Calculate the sale price on a mobile phone with a marked price of $145, and a
discount of 53%
$68.15
P=Original price=145
D=Discount=53%
Sales=S
S=P-PD
S=145-(145×53%)
Which expression is equivalent to 20 - 35x ? *
Answer:
5[4 - 7x]
Step-by-step explanation:
Given expression:
20 - 35x
To factorize the expression, we need to determine the GCF of the terms.
⇒ 20 - 1, 2, 4, 5, 10, 20⇒ 35x - 1, 5, 7, x, 35Since "5" is the largest factor in both terms, the GCF is 5.
Factorize the expression using the GCF:
⇒ 20 - 35x⇒ 5[(20 ÷ 5) - (35x ÷ 5)]⇒ 5[(4) - (7x)]⇒ 5[4 - 7x]Thus, 5[4 - 7x] is equivalent to 20 - 35x.
What are the approximate dimensions of the rug? round each dimension to the nearest tenth of a foot. 10.4 feet by 7.4 feet 11.1 feet by 8.1 feet 13.4 feet by 10.4 feet 14.1 feet by 11.1 feet
Step-by-step explanation:
10.4feet by 7.4feet11.1 feet by 8.1 feet
Use the method of elimination to solve the pair of simultaneous equation 3a=2b+1,3b=5a-3
Answer:
a = 3
b = 4
Step-by-step explanation:
Simultaneous equation
3a = 2b + 1
3a - 2b = 1 ------------------(I)
3b = 5a - 3
-5a + 3b = -3 --------------(II)
Multiply equation (I) by 3 & equation (II) by 2 and then add. So, now 'b' will be eliminated and we can find the value of 'a'.
(I)*3 9a - 6b = 3
(II)*2 -10a + 6b = -6 {Now add}
-a = -3
a = -3/(-1)
[tex]\sf \boxed{a = 3}[/tex]
Plugin a = 3 in equation (I)
3*3 - 2b = 1
9 - 2b = 1
-2b = 1 - 9 {Subtracting 9 from both sides}
-2b = - 8
b = (-8)/(-2) {Dividing both sides by (-2_}
[tex]\sf \boxed{b = 4}[/tex]
Answer:
(a, b) = (3, 4)
Step-by-step explanation:
In order to eliminate one of the variables in this system of equations, both equations need to be multiplied by different numbers before they are added or subtracted. We can eliminate the 'b' variable by subtracting 3 times the first equation from 2 times the second. (Putting the 'b' terms on the same side of the equal sign makes this easier.)
__
2(3b) -3(2b +1) = 2(5a -3) -3(3a)
6b -6b -3 = 10a -6 -9a
3 = a . . . . . . . add 6 and collect terms
3b = 5(3) -3 . . . . use the second equation to find b from a
b = 4 . . . . . . . divide by 3
The solution is (a, b) = (3, 4).
_____
The multiplier used in each case is the coefficient of the variable in the other equation. The two equations have 'b' coefficients of 2 and 3, so we multiplied the equations by 3 and 2 before subtracting. That makes the 6b terms cancel, leaving only terms with the 'a' variable.
By swapping sides of the equation the way we did, the 'a' terms end up on the same side of the equal sign, which is where we want them. Likewise, the 'b' terms end up on the same side of the equal sign, so their cancellation is easier to see.
Solve the inequality.
7x ≥ –7
A.x ≤ –1
B.x ≥ 14
C.x ≥ –1
D.x > –14
25 76
Step-by-step explanation:
Answer: C ( x ≥ -1 )
Step-by-step explanation:
11. Write down three different whole numbers so that: • the median of the three numbers is 13, the range of the three numbers is 5.
Step-by-step explanation:
Let the numbers be a, b, c in ascending order.
Mean is 7, i.e. (a+b+c)/3 = 7 or a+b+c=21
Median(middle number) is 5, i.e. b=5
Range is 8, i.e. c-a=8 or c=8+a
Solving the above three equations simultaneously, we have
a+5+8+a=21
a=4, hence c=12
Therefore the three numbers are 4, 5 and 12
pls help fast --Solve the addition equation by finding a common multiple. (1 point)
one half plus two thirds plus four sixths equals blank
eleven sixths
seven elevenths
seven sixths
nine sixths
Step-by-step explanation:
11/6 !!
Please make me brainliest if this was helpful
more math !!!!! lol helppp
Answer:
p = 34d * k - 6000d
Step-by-step explanation:
profit equals to the number of skates sold that number - the rent for the building
The school newspaper wants to do an article about DLDs at DHS by interviewing the Dacula Leadership Team. They wish to get quotes from 8 of the 30 seniors on DLT. 18 of the senior DLT members are athletes, while 12 are non-athletes. Determine the probability that the newspaper staff receives quotes from exactly 3 athletes. Round to two decimal places.
The binomial distribution is applicable when only two outcomes are possible. The probability that the newspaper staff receives quotes from exactly 3 athletes is 0.1238.
What is Binomial distribution?A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,
[tex]P(x) = ^nC_x p^xq^{(n-x)}[/tex]
Where,
x is the number of successes needed,
n is the number of trials or sample size,
p is the probability of a single success, and
q is the probability of a single failure.
Given that 18 of the senior DLT members are athletes, therefore, the probability of a DLT member being an athlete is,
[tex]P = \dfrac{18}{30} = \dfrac{6}{10} = 0.6[/tex]
Also, 12 of the senior DLT members are non-athletes, therefore, therefore, the probability of a DLT member being a non-athlete is,
[tex]q = \dfrac{12}{30} = \dfrac{4}{10} = 0.4[/tex]
Now, using the binomial distribution the probability that the newspaper staff receives quotes from exactly 3 athletes can be written as,
[tex]P(x) = ^nC_x p^xq^{(n-x)}\\\\P(x=3) = ^8C_3\cdot (0.6)^3\cdot (0.4)^{(8-3)}\\\\P(x=3) = ^8C_3\cdot (0.6)^3\cdot (0.4)^{(5)}\\\\P(x=3) = 0.1238[/tex]
Hence, the probability that the newspaper staff receives quotes from exactly 3 athletes is 0.1238.
Learn more about Binomial Distribution:
https://brainly.com/question/14565246
#SPJ1
The Dolphins' hockey coach kept track of how many goals the team scored in the first half of their season.
Answer:
the median is 3 for your question
The graph shows the relationship between the distance a bicyclist travels and the time in hours.
100
90
80
70
Distance (mi)
60
50
40
30
20
.
10
Time (h)
Use the Fundamental Counting Principle to find the total number of possible outcomes.
Beverage
Size Small, Medium, Large
Flavor
Orange juice, Apple juice,
Lemonade, Milk
Answer:
There are 12 possible outcomes.
Step-by-step explanation:
For each of the three sizes of beverages, there are four flavors. So there are 3 * 4, or 12, possible outcomes.
The rectangles below have the same perimeter.
AS BASICALLY IF I TELL U THE CORRECT ANSWER OF ORANGE RECTANGLE IS16ML2
Answer:
16 mi squared
Step-by-step explanation:
Gray perimeter :16 (5,5,3,3)
Orange perimeter :16 (4,4,4,4)
Area of Gray :15 (5x3)
Area of Orange :16(4x4)
10m^2n+30mn^2+5mn
factor the polynomial
[tex] \: [/tex]
Explanation :
So, here we are to factor the polynomial :
[tex]\\ \longrightarrow \sf \qquad10m^2n+30mn^2+5mn\\ \\[/tex]
[tex] \longrightarrow \sf \qquad5mn(2m+6n + 1)\\ \\[/tex]
Some points to know :
Factorisation is the reverse process of multiplucation.The Factorisation is the process of finding two or more expressions such that their product is the given expressionAnswer:
[tex]\boxed{5\left(6mn^{2}+mn+2\left(m^{n}\right)^{2}\right)}[/tex]
Step-by-step explanation:
[tex]10m ^ { 2n } +30mn ^ { 2 } +5mn[/tex]
Factor out the common factor: 5
[tex]=5\left(2m^{2n}+6mn^{2}+mn\right) [/tex]
[tex]=5\left(6mn^{2}+mn+2\left(m^{n}\right)^{2}\right)[/tex]
=》This expression cannot be further simplified.
___________
Hope it helps ⚜
What is 79,300 written in scientific notation?
O
A. 7.93 x 104
OB. 7.93 x 105
O Ос C. 79.3 x 104
OD. 79.3 x 105
Answer:
A. 7.93 x 104
Step-by-step explanation:
Alex has two designs to build a chest. In each design, the chest is a rectangular prism. Chest A has dimensions of 5 feet ×3 feet ×214 feet . Chest B has dimensions of 4 feet ×312 feet ×3 feet . Part A How much space does each chest hold? Include units in your answers. Chest A has of space. Chest B has of space. Question 2 Part B How much material is needed to build each chest? Include units in answer. Chest A needs of material. Chest B needs of material.
Answer:
I like turtlesion:
Step-by-step explanation:
the answer is easy you take 2 + 2 + 2 + 2 + 2 + 2 + 2 and then you got8 twos so you kind of want to do that and add another number to the 8th and then got 82 there's a step-by-step explanation and this is not actually not the answer I just want to fool around with some people
Sorry I'm asking again but i need help
On Friday, Keith spent 12 pennies on ice cream. The next day, Keith spent 15 dimes on baseball cards. All in all, how much money did Keith spend?
Answer:
$1.62
Step-by-step explanation:
Penny = 1 cent
Dime = 10 cents
10 x 15 = 150 + 12 = 162
I’ve worked out that the 1st term is -5 but can’t work out the rest. I thought it was -77 but it’s wrong
Answer:
-5, 22, 292
Step-by-step explanation:
Subbsittutoin mehtod
(i) n = 1 , 3n - 8
= 3 x 1 - 8
= -5
(ii) n = 10 , 3n - 8
= 3 x 10 - 8
=22
(iii) n = 100 , 3n - 8
= 3 x 100 - 8
= 300 - 8
= 292
Help if you can
Please no links or false answers
Answer:
1st option
Step-by-step explanation:
given a quadratic function in standard form
f(x) = ax² + bx + c ( a ≠ 0 ) , then
• if a > 0 , the function opens up and has a minimum
• if a < 0 , the function opens down and has a maximum
here a = [tex]\frac{1}{2}[/tex] > 0
then f(x) opens up and has a minimum
Answer:
Option A, open up and have a minimum
Step-by-step explanation:
Step 1: Determine if it opens up or down
Since the value of a is 1/2 which means that it's positive which also means that it opens up. When a parabola opens up, that means that it has a minimum.
The picture attached to this answer shows an example of how a graph would look when using this equation. If a was -1/2 then the parabola would be facing down and would have a maximum.
Answer: Option A, open up and have a minimum
pls help i need answer pls
Answer:
The answer is B.
Step-by-step explanation:
There isn't much to explain.
3/6 people like chocolate ice cream and x/600 where x is the number of people who like chocolate ice cream.
[tex]\frac{3}{6}=\frac{x}{600} \\[/tex]
Cross multiply to solve for x.
6*x = 3*600
6*x = 1800
x = 300
300 people like chocolate ice cream so about half of people like chocolate ice cream compare to 3/6 the same.
Use the regression calculator to compare the teams’ number of runs with their number of wins. a 2-column table with 9 rows. column 1 is labeled r with entries 808, 768, 655, 684, 637, 619, 613, 609, 563. column 2 is labeled w with entries 93, 94, 66, 81, 86, 75, 61, 69, 55. the equation of the trend line is
The equation of the trend line is ŷ = 0.15x - 23.21
How to determine the average rate of change of the trend line?The points are given as:
hr =>808, 768, 655, 684, 637, 619, 613, 609, 563
w => 93, 94, 66, 81, 86, 75, 61, 69, 55.
Using a graphing calculator, we have the following calculation summary:
Sum of X = 5956Sum of Y = 680Mean X = 661.7778Mean Y = 75.5556Sum of squares (SSX) = 50569.5556Sum of products (SP) = 7547.1111The regression equation is represented as:
ŷ = bX + a
Where:
b = SP/SSX
b = 7547.11/50569.56
b = 0.14924
a = MY - bMX
a = 75.56 - (0.15*661.78)
a = -23.20961
This gives
ŷ = 0.14924X - 23.20961
Approximate
ŷ = 0.15x - 23.21
Hence, the equation of the trend line is ŷ = 0.15x - 23.21
Read more about trend lines at:
https://brainly.com/question/2589459
Answer:
D.) y = 0.15 - 23.21
Step-by-step explanation:
I took the assignment
help me, please help, please
Answer:
Maddie has 6 cookies
Step-by-step explanation:
Let a symbolise the sugar cookies
so, Jacob has 3a
And Mary has double of Jacob's cookies
Hence,
3a * 2
= 6 cookies
Here is an expression.
1} :
Which situation could the expression model?
O A. A bag of almonds weighs 13 pounds. When of
the bag of almonds remain, how many pounds do
the almonds weigh?
B. How many cup servings of yogurt are in 1 cups
of yogurt?
o C. A student made 6 bows from 1 yards of ribbon.
How many bows can be made from yard of
ribbon?
OD. A girl has 1 cups of soup. She eats of the soup.
How many cups of soup remain?
Answer:
b
Step-by-step explanation:
is the situation could the expression model.
Which equation could be used to calculate the sum of the geometric series? one-third two-ninths startfraction 4 over 27 endfraction startfraction 8 over 81 endfraction startfraction 16 over 243 endfraction
The equation could be used to calculate the sum of the geometric series is [tex]S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }[/tex]
Sum of geometric sequenceGeometric sequence are sequence that increase expoentially. The formula for calculating the sum of an exponential sequence is expressed as:
[tex]S_n=\frac{a(1-r^n)}{1-r}[/tex]
where
a is the first termn is the number of termsr is the common ratioFrom the given sequence
a= 1/3
r = 2/9 * 3 = 2/3
Substitute into the formula
[tex]S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }[/tex]
Hence the equation could be used to calculate the sum of the geometric series is [tex]S_n=\dfrac{\frac{1}{3} (1-(\frac{2}{3} )^n)}{1-\frac{2}{3} }[/tex]
Learn more on geometric series here; https://brainly.com/question/24643676
Answer:
A
Step-by-step explanation:
edge
solve the system of linear equations by graphing
x+y=18
y=x+12
Answer:
it equals =204 y=12
What is the solution to the inequality |2n +5| > 1?
Answer:
the answer is C
Step-by-step explanation:
If we use a double sided coin and assign heads as females and tails as males, what is the best way to perform
Answer:
D. Keep track of the number of heads flipped in 50 flips. These represent the number of females born today. Repeat this 200 times.
Step-by-step explanation:
Just need a bit off help! 10 points for each question and another 10 for the help so 50 points
Answer:
84, do 252/3
7.5, do 180/24
0.45, do 9/20
1.4, do 11.2/8
The figure below shows a sphere with its center at O. The points A, B, C, and D are on the
surface of the sphere.
How many tangents to the sphere have been shown in the figure?
A. 0
B. 1
C. 2
(D. 3
Answer:
Option. C
Step-by-step explanation:
A and C are the two points of tangencies on sphere
There are two tangents to the sphere in the figure. Option C. is the correct option
Step-by-step explanation:A and C are the two points of tangencies of respective tangents that makes a perpendicular to the centre of the sphere of 'O' point ( lined on a plane circle of sphere ).
Content:- Tangent plane to Sphere.