Answer:
Step-by-step explanation:
10x + 15y = -90
15y = -10x - 90
y = (-10/15)x - 90/15 = -⅔x - 6
The required equation is -(2/3)x - 6 which is equivalent to the given equation 10x + 15y = −90, which is the correct answer that would be option (A).
What is the equation?The term "equation" refers to mathematical statements that have at least two terms with variables or integers that are equal.
The equation is given in the question
10x + 15y = -90
We have to determine whether the equation is equivalent to 10x+15y=−90 when it is solved for y
As per the given equation,
⇒ 10x + 15y = -90
Rearrange the term of variables and solve for y
⇒ 15y = -10x - 90
Divided by 15 into both sides of the above equation,
⇒ y = (-10/15)x - 90/15 =
Reduce the fraction to the simplest form,
⇒ y = -(2/3)x - 6
Therefore, the required equation is -(2/3)x - 6 which equivalent to given equation 10x + 15y = −90.
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PLEASE SHOW FULL SOLUTIONS !!!!! WILL MARK BRAINLIEST FOR THE BEST ANSWER. THANK YOU AND GOD BLESS.
Here is the Question:
The system y = 4x - 7 and 2y = ax + b has no solution. Determine the value(s) of a and b for which this is true.
Answer:
a = 8
b ≠ 18
Step-by-step explanation:
y = 4x - 7
2y = ax + b
For there to be no solution, the lines (if graphed) should be parallel meaning that their slopes are equal but the y-intercepts are different
y = mx +b is the equation of a line where m is the slope and b is the y-intercept
Multiply the first equation by 2
2y = 8x - 14
2y = ax + b
So a has to equal 8
b can be anything except 14 (otherwise the lines would be the same)
9514 1404 393
Answer:
a = 8b ≠ -14Step-by-step explanation:
Multiply the first equation by 2 and you get ...
2y = 8x -14
Compare to the second equation ...
2y = ax +b
The pair of equations will have no solution if they describe parallel lines. That is, a = 8 and b ≠ -14.
__
For a ≠ 8, the lines will intersect and there will be one solution.
For a = 8 and b = -14, the lines will be coincident, and there will be infinite solutions.
please helppp
Determine if the side lengths 6, 11, and 19 form a triangle. If it is a triangle, classify it by its sides.
scalene triangle
equilateral triangle
isosceles triangle
It's not a triangle.
Answer:
Its not a triangle
Please Help ASAP I’m confused
Answer:
a.12 feet is the answer pythagorean theory
Answer: 12
Step-by-step explanation:
For this question you would have to use pythagoras' theorem.
The formula to work out the shorter side is a²=c²-b² so for this question it would be a²=13²-5² when you put the numbers in the formula.
13²=169
5²=25
a²=169-25
a²=144
Then to work out a on it's own you would square root 144.
The square root of 144 is 12.
pplllleeaaassseeeee hellppppp meeee
this is easy but i dont get it
Answer:
choice 1) -6 and choice 2) -5
Step-by-step explanation:
choice 1)
-(1/2)-6)+6 > 8
9 > 8
choice 2)
-(1/2)(-5)+6 > 8
8 1/2 > 8
HELP IS OVERDUED AND I NEED THE CORRECT ANSWER AND WORK BY TODAY BEFORE SHE COUNTS IT LATE!!!!! ALMOST 3:20am!!!!! The answer written is NOT my answer.
Answer:
978 in^2
Step-by-step explanation:
the area of the rectangle:
24in X 30in = 720 in^2
the area of the two similar triangles:
12 X 9 / 2 + 12 X 9 / 2 = 108 in^2
the area of the last triangle:
20 in X 15 in /2 = 150in^2
.
the total area is the sum of the areas:
720in^2 + 108in^2 + 150in^2 = 978in^2.
Find the area for the following images
Answer:
114
Step-by-step explanation:
9(4)=36
9(4)=36
14(3)=42
36+36+42=114
Hope this helped!!
Which expression is equivalent to 7(y - 8)?
Answer:
In this question , we have to find the equivalent expression.
Step-by-step explanation:
To find the equivalent expression of a fraction, we can either multiply numerator and denominator by same variable or same number, or we can divide both numerator and denominator by same number or same variable .
So if we multiply both numerator and denominator by 2, we will get 14/16
Step-by-step explanation:
7(y-8) = 7y-7(8) = 7y- 56
find the product 12(-3)
helpp what is the y- value when x equals 21? y = 650 - 16 (x)
Answer:
y = 314
Step-by-step explanation:
y = 650 - 16x
y = 650 - 16(21)
y = 650 - 336
y = 314
In ΔQRS, q = 99 cm, r = 17 cm and s=96 cm. Find the measure of ∠S to the nearest degree.
74.95 or 75 I think
Step-by-step explanation:
I put it into a triangle calculator, so it could be wrong.
The measure of the angle S from the given triangle QRS is 65°.
What is cosine rule?The law of cosine states that the square of any one side of a triangle is equal to the difference between the sum of squares of the other two sides and double the product of other sides and cosine angle included between them. The law of cosine states that: a² = b² + c² − 2bc·cosA.
Given that, in ΔQRS, q = 99 cm, r = 17 cm and s=96 cm.
96²=99²+17²-2×99×17cosS
9216=9801+289-198cosS
-874=-198cosS
cosS=4.14
∠S=65°
Therefore, the measure of the angle S is 65°.
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A box of chocolates contains milk chocolates and dark chocolates in the ratio 4:3
The box contains 35 chocolates
how many milk chocolates are there in the box?
Answer:
20 milk chocolates
Step-by-step explanation:
The first step is adding together 4 + 3. You will get 7. This is the total number of units in the box.
Then, divide 35 by 7. You will get 5 as the answer.
To find the number of milk chocolates, multiply 5 and 4. You will get 20 as the answer.
Need to find the area of the triangle and rectangle and total area. Pls help ASAP
2x + 4 ≥ 24 =
I don't know what to do here
Answer:
Step-by-step explanation:
Inequality Form:
x ≥ 10
Interval Notation:
[ 10 , ∞ )
An airplane has a maximum capacity of 118 passengers. The flight attendant has loaded 40 passengers. Which inequality represents the solution set that the number of passengers, p, that can still load the plane?
A). p is greater then or equal to 68
B). p is less than or equal to 68
C). p is less than or equal to 78
D). p is greater than or equal to 78
Answer:
118-40=78
p either is less tham or equal to 78
the answer is c
on a map to cities measure 6.2 cm apart if the scale of the map is 5 cm/ 10 miles and how many miles apart are the cities
the answer should be 12.1
A school has a total enrollment of 800 students. Twenty percent of the students play a sport. How many do not play a sport?
Answer:
160
Step-by-step explanation:
Find the slope given the following points:
(-1, 2) (3,5)
Answer:
The slope is [tex]\frac{3}{4} \\[/tex]
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
[tex]m = \frac{5-2}{3-(-1)} = \frac{3}{4}[/tex]
find the volume please
Answer:
Volume ≅ 1407.4
Step-by-step explanation:
Since this shape is a cylinder we need to use the formula for the bolume of a cylinder, which is...
V = π[tex]r^{2}h[/tex]
(where "h" is the heigh of the cylinder)
Now we just substatute the values, and so we get...
V = π[tex]r^{2} h[/tex]
V = π[tex]8^{2}(7)[/tex]
V = 64π(7)
V = 448π
V ≅ 1407.4
HELP PLEAES ALSO PLEASE DO NOT CLICK THE LINKS THIS GUY IS PUTTING
Answer:am Pretty sure it’s c but am not sure
Step-by-step explanation:
Tyrell and Channing both work at the same fast food restaurant. Channing works 5 hours and earns $42.75. Tyrell's earnings are modeled by the equation E = 8h, where h is the number of hours worked and E represents his total earnings. Which of the following statements must be true?
a.Channing earns more money per hour than Tyrell.
b.Tyrell earns more money per hour than Channing.
c.Channing and Tyrell each earn the same amount of money per hour.
d.Tyrell works twice as many hours per week as does Channing.
Answer:
A. Channing makes $8.55 an hour compared to Tyrell who only makes $8 an hour.
Step-by-step explanation:
To find how much Channing makes an hour, divide the amount earned ($42.75) by the hours he worked (5). So, 42.75/5=8.55 which is Channing's hourly wage. Tyrell's hourly wage was already given to us in the equation E=8h. 8 times his hours works= his earnings. 8.55>8.00
Zena earned $30 for each of the last 3 weeks .This week she earned $42. What were her average earnings for the 4 weeks
Answer:
$33
Step-by-step explanation:
30 + 30 + 30 + 42 = 132
132 divided by 4 = 33
$33 is the answer.
PLEASE GIVE BRAINLIEST AND 5 STARS.
600 miles in 8 hours
_?_ miles per hour
(number answer only)
75mph
If you go 600 miles in 8 hours, you divide the miles by the hours, which makes the problem 600 divided by 8, which equals 75.
please help fast i only have 30 min !!!!!
I need the answer fast ASAP
Answer:
a rotation followed by a dilation
Step-by-step explanation:
they first rotated the figure by 90 degrees, they then dilated by a scale factor of 3
How much longer will it take a car traveling at an average speed for 2 miles per hour to make the trip from San francisco to New York than a Dc10 jet flying at an average speed of 500 miles per hour
Answer:
1445.6 hours
Step-by-step explanation:
Distance between New York and San Francisco = 2902.8 miles (checked online)
Average speed of car = 2 mi/hr
Average speed of jet = 500 mi/hr
Time taken by Jet:
Time taken = Distance / speed
Time taken = 2902.8 / 500
Time taken = 5.8056 = 5.8 hours
Time taken by Car :
Time taken = Distance / speed
Time taken = 2902.8 / 2
Time taken = 5.8056 = 1451.4 hours
Time difference :
1451.4 - 5.8 = 1445.6 hours
PLEASE HELP! Will give the BRAINLIEST!!
The distance between two cities is 448 miles. If the scale on a map is 1/2 cm =
32 miles, what is the distance between the cities on the map?
Answer:
7
Step-by-step explanation:
448 divided by 32 is 14 so then do 14 times 1/2 to get 7 centimeters
so im watching Buffy while doing class and completly forgot
Answer: Buffy is a tv show about a dog that eats rabbits!
Step-by-step explanation:
Answer:
whats the question?
Step-by-step explanation:
cant answer without knowing what the question is about. sorry :(
Solve for brainliest
Answer:
c
Step-by-step explanation:
c
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Step-by-step explanation:
Bhjjsjeiewxjeccejcefefrjdd3f3jdwd1jjdwdwjd2
Answer:
Yes that is a form of punctuation
Step-by-step explanation:
What is the inequality shown?
HELP PLEASE
Answer:
greater than or equal to -4 but lower than or equal to 3
Step-by-step explanation: