2x+3y=-6
4x+6y=-12
6x + ay=-18
Answers
Answer: -18
Step-by-step explanation: I used a math problem calculator. : /
Related Questions
Bryan earns $5.00 per lawn mowed and $5.00 per car washed. Let m be the number of lawns mowed and let c be the number of cars washed. Select all the expressions that could represent the total earned, E in dollars, by Bryan.
Answers
Answer:
where.... are the expressions?
Step-by-step explanation:
Answer:
The most logical choice for the expression would be 5m + 5c = E
But it could also be 5(m + c) = E
Help my friendddddddddddd
Answers
Answer:
It would be a positive correlation
Step-by-step explanation:
Ryan ordered some books online and spent a total of . Each book cost and he paid a total of for shipping. How many books did he buy?
Answers
Answer: 12 books
Step-by-step explanation:
First you need to remove the cost of shipping from the total amount:
= 75 - 3
= $72
The above is the total amount spent on the books without shipping.
If each book cost $6, the total number of books bought is:
= 72 / 6
= 12 books
3) Select ALL the expressions that are equivalent to 6x + 1 - 4(2x-1).
A) 6X + 1 - 8X - 4
B) 6X + 1 - 8X + 4
C) -2X + 5
D) 6X + 1 + -8X + 4
Answers
the cos c of recycle Tin can varies directly as it's weight w in kilograms .if a junk shop pays 60 pesos per kilo of tin cans how many kilos should a junk shop pay an amount of 390 pesos
Answers
Answer:
Step-by-step explanation:
c = 60w
390 = 60w
w = 6.5 kilograms
Consider the relationship in special right triangles to determine the tangent ratio for a 45 degree angle. Give your answer, as necessary, to the nearest thousandth place (three decimal place values).
Answers
Answer:
1
Step-by-step explanation:
The tangent of a angle is opposite side/ adjacent side
In a rights triangle with a 45° angle we have a special 45-45-90 triangle.
The legs of the triangle are congruent and are the opposite and adjacent sides of the 45° angle. Therefore, the ratio of those two sides is 1.
Therefore, the tangent of 45° = 1
If each of the two equations shown below are graphed in the same xy-coordinate plane, the graphs intersect. What is the x -coordinate of one of these points of intersection? y = 2x−9 y=−(x−1)2−7
Answers
Answer:
The graphs do intersect at two values of x;
x = 1
and
x = -1
Step-by-step explanation:
We have the two equations:
y = 2*x - 9
y = -(x - 1)^2 - 7
We know that when we graph these equations, the graphs do intersect.
if the graphs intersect, then we must have at least one point (x, y) that is a solution for both equations.
because in this point y is the same for both equations, then we can write:
2*x - 9 = y = -(x - 1)^2 - 7
this leads to the equation:
2*x - 9 = -(x - 1)^2 - 7
now we can solve this for x.
2*x - 9 + (x - 1)^2 + 7 = 0
2*x + x^2 - 2*x + 1 + 7 - 9 = 0
x^2 - 1 = 0
x^2 = 1
x = √1
Then we have two possible solutions:
x = 1, and x = -1
The Lakewood Wildcats won 5 of their first 8 games this year. There are 32 games in the season. How many games would you expect the Wildcats to win this season?
Answers
Answer:
x=20
Step-by-step explanation:
Rewrite the equation as
x /32 = 5/ 8
Multiply both sides of the equation by 32
32 ⋅ x /32 = 32 ⋅ 5/8
Simplify both sides of the equation.
Cancel the common factor of
32
Cancel the common factor.
32· x/32 · 5/8Rewrite the expression.
x = 32 ⋅ 5/8
Simplify
32⋅5/8
Cancel the common factor of
8
Factor 8 out of 32
x = 8 ( 4 ) ⋅ 5/8
Cancel the common factor.
Rewrite the expression.
x = 4 ⋅ 5
Multiply 4 by 5
A parking lot has 7 red cars out of a total of 35 cars. What percent of the cars in the parking lot are red? Enter your answer in the box.
Answers
Answer:
20%
Step-by-step explanation:
Answer:
% of Red CARS = 20%Step-by-step explanation:
Total CARS = 35
Red CARS = 7
% of Red CARS = (red cars ÷ total cars)*100
% of Red CARS = (7÷35)*100
% of Red CARS = 20
A football team with a probability of 0.8 of winning a game plays 50 games in a season. What is the probability
of the team losing a game?
Answers
I showed this to my sister and she is a math teacher and she said this is 100 percent right
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Answers
ted wants to buy a skateboard that is 59 dollars but is 30 percent off how much will he save
Answers
Answer:
Step-by-step explanation:
Ted will save $15.
Answer:
He will save $17.7.
Step-by-step explanation:
30% of 59= 41.3
59-41.3= 17.7
True or False
calculator found in cp is better to use than an ordinary calculator in computing the number of seedling needed
paki explain po.
Answers
Answer:
for saken it is better to use ordinary calculator than cp because they have a big difference. That's all I can say
solve for N
what's the rule
Answers
Answer:
n = 8
Step-by-step explanation:
The rule for this table is multiply x by 4 to get y. To solve for n, divide y (32) by 4 to get x (8).
Hope it helps!
About 8 out of 15 homes have a
dog as a pet. On a street with 165
homes, how many would you
expect to have a dog for pets?
with dogs
Answers
In a physics lab, an artifact is dropped from the roof of the school building, 98 feet above the ground. The height ݄ (in feet) of the ball above the ground is given by the function h(t)=-16t^2+98, where t is the time in seconds.
Answers
Answer:
The algebraic expression h = 16 feet.
whitch of the functions below could have created this graph
Answers
Answer:
C
Step-by-step explanation:
2 roots: 1 , -1
f(1) = 0 and f(-1) = 0 only function C fit the condition
Simplify the expression:
-5 – 3 (4x – 9)
Answers
Answer:
Step-by-step explanation:
lets remove the paranthesis and multiply
-5-3(4x-9)=
=-5-12x+27=
=-12x+22
A bag contains 19 cards numbered 1 through 19. A card is randomly chosen from the bag. What is the probability that the card has a multiple of 3 on it
Answers
Answer: 6/19
Step-by-step explanation:
To solve this question, find out the number of multiples of 3 between the numbers 1 - 19.
The multiples of 3 there are:
= 3, 6, 9, 12, 15 and 18
There are 6 multiples.
Probability will therefore be:
= Number of multiples of 3/ Total number of cards
= 6/19
The length of a basketball court is twice its width. The perimeter is 150 feet. Find the length and width of the basketball court. On your worksheet, solve the question and write your answer below. What is length of the basketball court? What is the width of the basketball court?
Answers
Answer: W=25 and L=50
Step-by-step explanation: I first started out with 50, because 50 is half of 100. 50 divided by 2 equals twenty five. Now, I moved on to 100. 100 divided by 2 equals 50. 25+25+50+50=150.
Answer:
The width of the basketball court is 25 feet and the length is 50 feet
Step-by-step explanation:
Equations:
Let's make:
x = width of the basketball court
2x = length of the basketball court
The perimeter of the court is twice the width plus twice the length:
P = 2x + 2(2x)
P = 2x + 4x = 6x
It's known to be 150 feet, thus:
6x = 150
Dividing by 6:
x = 150/6
x = 25 feet
2x = 50 feet
The width of the basketball court is 25 feet and the length is 50 feet
A guitar string vibrates back and forth 88 times in 1 minute. Round your answers to the following questions to the nearest tenth.
How many times does it vibrate per second?
Answers
Answer:
1.5
Step-by-step explanation:
divide 88÷60=1.4666667
simplify to nearest 10th
Solve: -8(x - 3y - 9)
Your answer
Answers
————————-
Answer: −8x+24y+72
-8(x - 3y - 9)
=(-8)(x + -3y + -9)
=(−8)(x)+(−8)(−3y)+(−8)(−9)
=−8x+24y+72
Step-by-step explanation:
im not entirely sure but i hope this helps
:) have a nice day !!
When 20 large rooms are occupied, the total amount of money collected from the large room is $1800. When 10 large rooms and 21 small rooms are occupied, the hotel collects $2370. How much does the hotel charge for each small room?
PLEASE I NEED HELP ITS DUE TODAY!
Answers
i cant explain it right now i have work to do so sorry:)
20L = 1800
L = 90
10L + 21S = 2370
Then substitute what you know L is and solve for S (small room cost)
10(90) + 21 S = 2370
900 + 21 S = 2370
21S = 1470
S = 70
jane cycled 32km, correct to the nearest km.
write the least distance and the greatest distance Jane could have cycled.
least:
greatest:
Answers
Answer:
31.5
and
32,4
Step-by-step explanation:
Which statement is correct?
O A.
The opposite of the opposite of 6 is 6.
OB.
The opposite of the opposite of 1 is 1.
O C.
The opposite of the opposite of 3 is 0.
O D.
The opposite of the opposite of 5 is.
Answers
Answer:
I think its OB but I'm not sure
Step-by-step explanation:
i need help with number 5
Answers
Answer:
the graph is not exponential because exponential is represented as a form of exponenti growth or exponential decay. Exponential function has a slight curve rather than a straight line
Prove that with any natural number n (5n-4)^2-(2n+11)^2 divides by 21
Answers
Answer:
let natural no be 1
(5.1-4)^2-(2.1+11)^2/21
25-16-4-121/21
-5.52
Step-by-step explanation:
plz maje me brainliest
A cheer squad of 8 cheerleaders raised $317.30. They need $622.42 to
pay for the Homecoming dance. If each cheerleader raises the same
amount, how much more does each cheerleader need to raise?
Answers
Answer:
Each cheerleader needs to raise 38.14 more
Step-by-step explanation:
Answer:
They each need to raise $38.14.
Step-by-step explanation:
For this problem, I started off by subtracting 317.30 from 622.42.
(622.42-317.30) This gave us 305.12.
I did this, because we are trying to find the amount of money the cheerleaders have left to make.
Next, we will divide the difference of this equation (305.12) by 8.
We did this because there are 8 cheerleaders, and they all made the same amount of money.
This leaves us with an answer of:
Each cheerleader has exactly $38.14 left to make.
How many tons are equal to 36,000 pounds
Answers
Answer:
18
Step-by-step explanation:
18 US tons are equal to 36,000 pounds
What is the value of x?
Enter your answer in the box.
x = ___
Answers
The value of x from the given diagram using the similarity theorem of a triangle is 7
In order to get the value of x from the given triangle, we will use the similarity theorem of a triangle.
From the given triangle, the following equation is true;
5/40 = 3/2x + 10
Cross mutiply
5(2x + 10) = 3(40)
10x + 50 = 120
10x = 120 - 50
10x = 70
x = 7
Hence the value of x from the given diagram is 7
Learn more here: https://brainly.com/question/23961310