Answers
Answer:
Step-by-step explanation:
[tex]\left \{ {{a+c=123} \atop {7a+5c=829}} \right.[/tex]
7a + 7c = 861 ...... (1)
7a + 5c = 829 ..... (2)
(1) - (2)
2c = 32
c = 16
a = 123 - 16 = 107
Answer:
16 Children, 107 Adults
Step-by-step explanation:
a + c = 123
7a + 5c = 829
a + c = 123
a = 123 - c
7a + 5c = 829
7(123 - c) + 5c = 829
861 - 7c + 5c = 829
861 - 2c = 829
-2c = 829 - 861
-2c = -32
-2c/-2 = -32/-2
c = 16
a + c = 123
a + 16 = 123
a = 123 - 16
a = 107
Related Questions
write the first 5 terms of the recursive sequence defined below. a1=0 an=2(an-1)²-1, for n>1
Answers
Answer:
0, -1, 1, 1, 1Step-by-step explanation:
Given recursive formula
a₁ = 0 aₙ = 2(aₙ₋₁)² - 1, for n>1The first 5 terms are:
a₁ = 0a₂ = 2(0)² - 1 = 0 - 1 = -1a₃ = 2(-1)² - 1 = 2 - 1 = 1a₄ = 2(1)² - 1 = 2 - 1 = 1a₅ = 2(1)² - 1 = 2 - 1 = 1write the equation for the parabola that has x-intercepts (2,0) and (3,0) and y intercept (0,-1.2)
Answers
Answer:
i think its y=-0.2x^2+x-1.2
Step-by-step explanation:
i could be wrong tho ngl
The equation of the parabola with x-intercepts (2,0) and (3,0) and y-intercept (0,-1.2) will be y = (-1/5)(x - 2)(x - 3).
What is a graph?A graph is a diametrical representation of any function between the dependent and independent variables.
The graph is easy to understand the behavior of the graph.
For example y = x² form a parabola now by looking at only the graph we can predict that it has only a positive value irrespective of the interval of x.
The equation of a parabola is written as,
y = a(x - b)(x - c) here b and c are two x-intercepts while (a,y) is the y-intercept.
As per the given,
x-intercept = (2,0) and (3,0)
y-intercept = (0,-1.2)
y = a(x - 2)(x - 3)
-1.2 = a(0 - 2(0 - 3)
a = -1/5
Thus,
y = (-1/5)(x - 2)(x - 3)
Hence "The equation of the parabola with x-intercepts (2,0) and (3,0) and y-intercept (0,-1.2) will be y = (-1/5)(x - 2)(x - 3)".
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Sunita is buying five posters that are all the same price the store has a sale that takes $3 off the regular price of each poster she pays a total of $63 she wants to know the regular price of one poster
Answers
Answer:5(p-3)=63
Step-by-step explanation:
-3/7 times -4/5 its a fraction also help to simpfly!!
Answers
Answer:
The answer to the question provided is [tex] \frac{12}{35} [/tex]
Answer:
12/35 or 0.3428571
Four bags of dry dog food plus 9.5 pounds of dry cat food weigh pounds in all. How many pounds does each bag of dog food weigh?
Answers
Answer:
Each bag of dog food weighs 2 pounds
Step-by-step explanation:
Here is the complete question:
Four bags of dry dog food plus 9.5 pounds of dry cat food weigh 17.5 pounds in all. How many pounds does each bag of dog food weigh?
Step-by-step explanation:
From the question,
Four bags of dry dog food plus 9.5 pounds of dry cat food weigh 17.5 pounds in all.
Let the weight of one bag of dry dog food be x.
Then we can write that
4x + 9.5 pounds = 17.5 pounds
To determine x, subtract 9.5 pounds from both sides
4x + 9.5 pounds - 9.5 pounds = 17.5 pounds - 9.5 pounds
4x + 0 = 8 pounds
4x = 8 pounds
Divide both sides by 4
4x/4 = 8 pounds/4
x = 2 pounds
∴ The weight of one bag of dry dog food is 2 pounds.
Hence, each bag of dog food weighs 2 pounds.
Grace cut 3 pieces of ribbon; each piece was 25 of a foot long. How many feet of ribbon does she have in all? Express your answer as a mixed number
Answers
Answer:
1 1/5
Step-by-step explanation:
3 x 2/5 = 6/5 = 1 1/5
John buys a Seahawks beanie that cost $18, but is on sale for 20% off. Jane
buys a Seahawk scarf that costs$25, but is on sale for 25% off. Find the
difference in the amount John and Jane paid, after the discounts. Write
and solve proportions to find the answer, round your answer to the nearest
cent, and include units. *
Answers
Answer:
18/100 X 80 =14.40
25/100 X 75 =18.75
18.75 - 14.40 = 4.35
Joanne interpreted the solution to mean that Shirts For All sold 300 tie-dye shirts and 200 white shirts. Is she correct? If not, what is her mistake? Yes, Joanne is correct. No, she did not use the point of intersection. No, she put the values with the wrong variables. No, she needs to use the intercepts for the values.
Answers
Answer: C
Step-by-step explanation:
Answer:
C)No, she put the values with the wrong variables.
Step-by-step explanation:
Rapid rental car charges a $40 rental fee, $15 for gas, and $0.25 per mile driven. For the same car, Capital Cars charges $45 for rental and gas and $0.35 per mile. For how many miles is the rental cost at both companies the same
Answers
Answer:
The cost would be the same for 100 miles & Total cost would be $80.
7. Jan ran 4750 m, Mo ran 3.35 km, and Hal was 50 m short of 6 km. How
many kilometres did they run in total? *
Answers
Mae Ling earns a weekly salary of $335 plus a 8.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,500 worth of merchandise? She would makes
Answers
Answer:
$695
Step-by-step explanation:
Her salary can be shown through the following linear equation
salary=.08x+335
Where x is the amount of sales
To find her salary if she sells 4500 worth of merchandise you just simply need to plug 4500 in for x this means that
salary=.08*4500+335
I get $695
what is the solution to the given system of equations. y = 4x - 3
y = -X- 13
Answers
y = -x - 13
Since both equations equal y, we will just substitute both equations to equal each other.
4x - 3 = -x - 13
+x on both sides
5x - 3 = -13
+3 on both sides
5x = -10
/5 on both sides
x = -2
Substitute x = -2 into one of the equations.
y = -x - 13
y = -(-2) - 13
y = 2 - 13
y = -11
To check answer, plug in both x and y values into one of the equations.
y = -x -13
-11 = -(-2) - 13
-11 = 2 - 13
-11 = -11
Answer:
x = -2
y = -11
If annie has 8 apples and eren has 927 ore apples then annie, how much apples does eren have?
Answers
Answer:
935 apples
Step-by-step explanation:
927 plus 8 equal 935
The answer is 935
because remove the 92 from 927 you have 8+7
so the equals 15 then add 1 to the 2 and then you have 3 then you have the remaining 5 where you leave in the ones place then you have 935
The set of cards shown contains both red and black cards. How many cards must be red so the probability of drawing a red card at random is 2/5?
Answers
Answer:
H, 4 cards
Step-by-step explanation:
There are ten cards in the deck so you convert the fraction into tenths.
2/5 = 4/10 therefor its 4 cards
I dont really understand it HELP :/
Answers
Answer:
help
/hɛlp/
Learn to pronounce
verb
1.
make it easier or possible for (someone) to do something by offering one's services or resources.
"they helped her with domestic chores"
Similar:
assist
aid
help out
lend a hand to
lend a helping hand to
give assistance to
come to the aid of
succour
aid and abet
be of service to
be of use to
be useful to
do someone a favour
do someone a service
do someone a good turn
bail/bale someone out
come to someone's rescue
give someone a leg up
cooperate with
do one's bit for
rally round
pitch in
chip in
save someone's bacon
save someone's skin
muck in with
get stuck in with
Opposite:
hinder
2.
serve someone with (food or drink).
"may I help you to some more meat?"
noun
the action of helping someone to do something.
"I asked for help from my neighbours"
Similar:
assistance
aid
a helping hand
support
succour
advice
guidance
solution
benefit
use
advantage
service
comfort
avail
cooperation
collaboration
backing
encouragement
a shot in the arm
Opposite:
hindrance
exclamation
used as an appeal for urgent assistance.
"Help! I'm drowning!"
Definitions from Oxford Languages
Feedback
Translations and more definitions
People also ask
What is a fancy word for help?
Step-by-step explanation:
What is the mean absolute deviation of Evelyn's
scores?
5
125
137
138
145
145
O 5.1
O 5.6
O 5.8
13
1
0
7
7
07
Answers
Answer:
Step-by-step explanation:
5.6
Answer:
5.6 on edge
Step-by-step explanation:
ur welcome :)
A coordinate plane. Use the coordinate plane to plot the points (6, 0) and (0, 5). Which statement is true? (0, 5) is located on the x-axis. (0, 5) is located at the origin. (6, 0) is located on the x-axis. (6, 0) is located at the origin.
Answers
Hi!
Answer:
C, (6,0) is located on the x-axis.
Step-by-step explanation:
A. is wrong because (0,5) is located on the y-axis because it is going 5 points up, not right
B. and D. are wrong because none of them are located on the origin
That leaves C. and it is right because (6,0) is located on the x-axis
Want proof?
I have some:
Hope this helps anybody!
Answer:
c
Step-by-step explanation:
A bag contains 8 yellow marbles and 6 blue marbles. What number of
yellow marbles can you add to the bag so that the ratio of yellow to blue marbles is 2 : 1?
Answers
calmi goes scuba diving she descends 18-ft in 3 minutes which expression represents the average rate at which cami position changes in feet per minute
Answers
Rectangle ABCD was dilated to create rectangle A'B'C'D. Triangle A B C D is dilated to form triangle A prime B prime C prime D. Side B C is 3.8 units. Side A prime B prime is 15 units and side B prime C prime is 9.5 units. What is AB? 6 units 7.6 units 9.5 units 12 units
Answers
Answer:
[tex]AB = 6[/tex]
Step-by-step explanation:
Given
[tex]BC = 3.8[/tex]
[tex]A'B' = 15[/tex]
[tex]B'C' = 9.5[/tex]
Required
Determine the length of AB
Because A'B'C'D is a dilation of ABCD, then the following relationship must exist:
[tex]A'B' : AB = B'C' : BC[/tex]
Substitute values for A'B', B'C' and BC
[tex]15 : AB = 9.5 : 3.8[/tex]
Express the ratio as fractions:
[tex]\frac{AB}{15} = \frac{3.8}{9.5}[/tex]
Multiply through by 14
[tex]15 * \frac{AB}{15} = \frac{3.8}{9.5} * 15[/tex]
[tex]AB = \frac{3.8}{9.5} * 15[/tex]
[tex]AB = \frac{3.8* 15}{9.5}[/tex]
[tex]AB = \frac{57}{9.5}[/tex]
[tex]AB = 6[/tex]
Answer:
A. 6 units
Step-by-step explanation:
I got it right on edge.
At a club fundraiser a group of students washed 84 cars in one weekend. The next weekend, they washed 112 cars. What was the percent increase in the nunbers of cars washed?
Answers
Answer:
33.33%
Step-by-step explanation:
The computation of the percentage increase in the number of car washed is as follows;
= (Number of cars washed in next weekend - number of cars washed in one weekend) ÷ (number of cars washed in one weekend)
= (112 cars - 84 cars) ÷ (84 cars)
= 28 cars ÷ 84 cars
= 33.33%
Write the equation of the line in point slope form , explain thanks !
Answers
the answer is ( 6,19) ......
What is the y-intercept?
(0, –5)
(0, –2)
(0, 2)
(0, 4)
Answers
Answer:
Step-by-step explanation:
Think it’s - 1/3 not sure tho
Answer:
(0, –5)
i got it right on edge
Step-by-step explanation:
2-4 savas quiz 8th grade
Answers
Answer: -2
Step-by-step explanation:
2-4=-2
8. A grocery store is offering 10% off all purchases if
you bring your own bag to carry your groceries. If the
total bill is $150.48 how much will be the discount?
a.$135.43
b.$14.05
c.$125.43
d.$15.05
Answers
Ryan has 48 baseball cards. If Ryan gives 2/6 of his 48 cards to Max, how many cards does he give Max?
Answers
Answer:
16 baseball cards
Step-by-step explanation:
Since Ryan has 48 baseball cards
If he gives 2/6 of his 48 baseball cards to Max
= 2/6 × 48
= 16
It means that Ryan gives 16 of his baseball cards to Max
What is the slope for y= -8x + 3
A) -8
B) -5
C) 3
D) 8
Answers
Segment AB falls on line 6x + 3y = 12. Segment CD falls on line 4x + 2y = 8. What is true about segments AB and CD? They are parallel because they have the same slope of −2. They are parallel because they have the same slope of one half. They are lines that lie exactly on top of one another because they have the same slope and the same y-intercept. They are lines that lie exactly on top of one another because they have the same slope and a different y-intercept.
Answers
The lines 6x + 3y = 12 and 4x + 2y = 8 lie exactly on top of one another because they have same slope and same y intercept.
What are the coincident lines?The lines which coincide or lie on the top of each other are called coincident lines.
When the two lines coincide to each other?Two lines coincide to each other when they have same slope and same y intercept.
According to the given question.
We have two equation of lines.
[tex]6x + 3y = 12...(i)[/tex]
And, [tex]4x + 2y = 8...(ii)[/tex]
The equation (i) can be written as
[tex]2x + y = 4[/tex]
And equation (ii) can be written as
[tex]2x + y = 4[/tex]
Since, both the lines have same slope and same y intercept. Therefore, the given two lines coincide to each other.
Hence, the lines 6x + 3y = 12 and 4x + 2y = 8 lie exactly on top of one another because they have same slope and same y intercept.
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find the probability of drawing a diamond 8 through 10 on the first draw, replacing it, and drawing a black card on the second draw?
Answers
Drawing an 8, 9 or 10 of diamonds would be 3/52 ( cards out of 52 total cards)
Drawing a black card would be 1/2 ( half the deck is black)
The probability of both happening is 3/52 x 1/2 = 3/104
1
Find the value of the variables.
b
30°
a
12
60°
a-
b =
Answers
Answer:
a=6
b=10.39
Step-by-step explanation:
a=sin 30x12 or a=cos60x12
a=6
b=cos 30x12 or b=sin60x12
b=10.39
