0.2 / 0.22
it would've been 0.22222222 but if you cut it short its 0.2 or 0.22.
49. The line containing (1, -3) and (3, y) is parallel to the line containing (5, -6) and (9, y).
How do I find y?
Answer:
y = 0
Step-by-step explanation:
Parallel lines have equal slopes
Calculate the slopes of both lines and equate them
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 3 ) and (x₂, y₂ ) = (3, y )
m = [tex]\frac{y-(-3)}{3-1}[/tex] = [tex]\frac{y+3}{2}[/tex]
Repeat with (x₁, y₁ ) = (5, - 6 ) and (x₂, y₂ ) = (9, y )
m = [tex]\frac{y-(-6)}{9-5}[/tex] = [tex]\frac{y+6}{4}[/tex]
Equating the 2 expressions
[tex]\frac{y+3}{2}[/tex] = [tex]\frac{y+6}{4}[/tex] ( cross- multiply )
4(y + 3) = 2(y + 6) ← distribute parenthesis on both sides
4y + 12 = 2y + 12 ( subtract 2y from both sides )
2y + 12 = 12 ( subtract 12 from both sides )
2y = 0 , then
y = 0
find an ordered pair that is a solution to the equation 6x-y=5
Use properties of exponents to solve for a and b in the problem below. No calculator allowed. Please help; I don't know what I'm doing.
At target, they have 4 DVDs for $36. What is the constant of proportionality that relates the cost of DVDs, y, to the number of DVDs bought, x?
Answer:
Step-by-step explanation:
Cost of 4 DVDs = $36
Cost of 1 DVD = 36÷ 4 = $9
Cost of x DVD = 9 *x = 9x
y = 9x
Hiiioo!! Could someone please help me out!<3 thank you!
-Boopy:)
Answer:
y = -2x
Step-by-step explanation:
When it is x is -5, y is double of x multiplied into -1.
Hence, it is y = -2x
We can take a couple examples,
i) When x = -5,
y = -2(-5)
= 10
ii) When x = -10,
y = -2(-10)
= 20
and so on.
Feel free to mark this as brainliest! :D
Mark owes his sister $15. He earned $24 for mowing the grass. He gave 1/6 of his earnings to a local charity and then paid his sister. How much money will Mark have after he repays his sister? *
Answer:
$5
Step-by-step explanation:
(5/6)*24=20
20-15=5
1. temperature in region 12 rises up to 36
If there are 45 students in a classroom, of which 52% are women under 18 years of age. Please indicate:
a. How many male students are there in the class?
b. Is it possible to say that most of the students are minors?
Answer:
A. 22
b. Yes. Because there are 23 woman and they are all under 18 and there are 22 males. In which we don't know if they are underage, but it doesn't really matter because there is one more girl in the room than boys. And all woman are underage so there for there are more underage students in the room.
Step-by-step explanation:
Hope this helps :)
Pls make brainliest :p
And have an amazing day <3
Answer:
there would be 21.6 males. That doesn't work, so you'd have 21 or 22(probably 22)
yes, most of the students are minors. 52% percent at least are under 18 years. 52% is more than half, so that would make it so most are minors.
Step-by-step explanation:
In a class of 52 students, 16 are science students. If I/3 of the boys and 1/4 of the girls are science students, how many boys are in the class?
Answer:
36
Step-by-step explanation:
x = # of boys, y = # of girls
x/3+y/4=16; mult. ea side by 12: 4x+3y=192 (1)
x+y=52; mult. ea side by 3: 3x+3y=156 (2)
(1)-(2)=x=36
Solve for x.
x + 15
9
X =
is it
A) LC
B) ML
C) CM
D) CL
Mia invests £3200.when her investment matures she receives £3328. What was the actual increase?
In Exercises 13-20, find the value of x so that the function has the
given value.
13. f(x) = 6x; f(x) = -24
14. g(x) = -10x; g(x) = 15
15. f(x) = 3x – 5; f(x) = 4
16. h(x) = 14 – 8x; h(x) = -2
Step-by-step explanation:
13. f(x) = 6x; f(x) = -24
6x = -24
x = -4
14. g(x) = -10x; g(x) = 15
-10x = 15
x = -1.5
15. f(x) = 3x – 5; f(x) = 4
3x-5 =4
3x =9
x = 3
16. h(x) = 14 – 8x; h(x) = -2
14-8x=-2
-8x = -16
x = 2
Juwan is throwing a birthday party for his son. He originally ordered 3 pizzas, but he realizes that his son invited more people than he thought, so he decides to order at least 1 more pizza for every 4 people that come to the party. The total number of pizzas, y, can be expressed in terms of the number of people that show up to the party, x. Which inequality represents this situation?
1.
[tex]y \geqslant - \frac{1}{4} x + 3[/tex]
2.
[tex]y \geqslant \frac{1}{4} x + 3[/tex]
3.
[tex]y \leqslant 4x - 3[/tex]
4.
[tex]y \leqslant 4x + 3[/tex]
Answer:
b.
Step-by-step explanation:
Find m∠ABC . Assume the two lines which appear to be parallel are parallel.
Answer:
m ∠ABC = 35°
Step-by-step explanation:
lines are parallel and you have a pair of corresponding angles that are equal.
x = 3x - 70
-2x = -70
x = -70/-2
x = 35°
FIRST PERSON TO ANSWER GET BRAINLYEST Madie drove 200 miles at a speed of 50 miles per hour. Which equation will help you find the number of hours she was driving?
StartFraction 50 miles Over 1 hour EndFraction = StartFraction 200 miles Over question mark hours EndFraction
StartFraction 50 miles Over 1 hour EndFraction = StartFraction question mark hours Over 200 miles EndFraction
StartFraction 200 miles Over 1 hour EndFraction = StartFraction 50 miles Over question mark hours EndFraction
StartFraction 200 miles Over 1 hour EndFraction = StartFraction question mark hours Over 50 miles EndFraction
Answer:
200/50=h
h=number of hours
Step-by-step explanation:
Maddie drove 200 miles at a speed of 50 miles per hour.
As we know
speed = miles/hours
and to calculate we use the formula
Hour = miles/speed
So the equation that helps to find the number of hours she was driving =
h = 200/50
Equation will be h = 200/50
Answer: StartFraction 50 miles Over 1 hour EndFraction = StartFraction 200 miles Over question mark hours EndFraction
Step-by-step explanation:
For constant speed, miles and hours are proportional. One possible equation is ...
_____
I personally like to put the unknown in the numerator, so the equation can be solved in one step. The equation above requires two steps: one to cross-multiply, and one to divide by 50.
I might write the equation as ...
(? hours)/(200 mi) = (1 hour)/(50 mi) . . . . multiply by 200 mi to solve
Another way to write the equation is matching the ratios of times to corresponding miles:
(? hours)/(1 hour) = (200 mi)/(50 mi)
This only requires simplification to solve it: ? = 4.
So it would be A.
Step-by-step explanation:
3 jars of paprika and 4 packets of sage have a total weight of 290 grams. 7 jars of paprika have a total weight of 210 grams . Work out the total weight of 2 jars of paprika and 2 packets of sage
A box weighs 90 grams write down in terms of b the weight of b boxes
maths giving 10 point asap 1 question only
1) y = 6
2) x = 3
3) y = - 2/3
4) x = - 6
Step-by-step explanation:So all we have to do is substitute the known 'variable' and solve for the unknown variable.
1) 2(-3) + 3y = 12
3y = 12 + 6
y = 6
2) 4y = (1/3)x - 5
4(-1) = (1/3)x - 5
(1/3)x = 5 - 4
x = 3
3) (x/3) - 2 = y
(4/3) - (6/3) = y
y = (-2/3)
4) 2(x+1) = 5y
2(x+1) = 5(-2)
2x + 2 = - 10
2x = -12
x = -6
What is the value of 2x(3+x/2) when x=−2?
Answer:
-8
Step-by-step explanation:
[tex]2x(3+\frac{x}{2})[/tex] [tex]2*(-2)(3+\frac{(-2)}{2})[/tex] [tex]-4(3+(-1))[/tex] [tex]-4(2)[/tex] [tex]-8[/tex]October 2021 to Present
1 hours per week [ ?] weeks per year
Ik this is not math but please help me :P
Answer:
Part of an ecosystem
Step-by-step explanation:
Tan x = square root of 3
Answer:
the answer to that would be 9
There are two integers that combine to -19 and their product is 70. Find the two integers, then the SMALLER integer is your answer for this question?
Answer:
-14
Step-by-step explanation:
a + b = -19
(a)(b) = 70
To solve this problem, isolate one variable in one of the two equations and then substitute it in.
So, a + b = -19
-> a = -19 - b
b(-19 - b) = 70
Distribute.
-19b - b^2 = 70
Move all to one side.
b^2 + 19b + 70 = 0
Factor. Find two numbers that multiply to 70, but add to 19.
(b + 5) (b + 14) = 0
Zero product rule.
b = -5, b = -14
Now, substitute the two answers for b back into the original equation for a.
a - 14 = -19
a = -5
a - 5 = -19
a = -14
So, the answers are b = -5, b = -14, a = -5, a = -14. Since you said that the smallest integer is the answer, the answer is -14.
Triangle ABC is congruent to triangle DEF. Angle B is a right angle, and m∠C = 42°. What is m∠D?
Answer:
Step-by-step explanation: Triangle ABC is congruent to triangle DEF. Angle B is a right angle, and m∠C = 57°. What is m∠D? can someone help plsss
If Triangle ABC is congruent to triangle DEF then measure of angle D is 48 degrees.
Given, Triangle ABC is congruent to triangle DEF.
Angle sum property of triangle: Sum of all the interior angles of the triangle is 180 degrees.
Congruent triangles: When two triangles are congruent they are similar in shape and coincide when superimposed.
Now in triangle ABC,
∠B = 90°
∠C = 42°
Apply angle sum property,
∠A + ∠B + ∠C = 180 degrees
∠A + 90° + 42° = 180°
∠A = 48°
When Triangle ABC is congruent to triangle DEF,
∠A = ∠D
∠B = ∠E
∠C = ∠F
Thus measure of angle D is equal to measure of angle A.
∴∠A = ∠D = 48°
Know more about congruent triangles, here:
https://brainly.com/question/29066609
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PLEASE HELPPPPP
Write an equation to represent the total number of words, y, that Mrs. Garcia can type in x minutes. __________
If Mrs. Garcia maintains a constant speed consistent with the results above, how many words will she type in 49 minutes?___________
Answer:
3,430
Step-by-step explanation:
because if you multiply 49 x70 you get the answer
Answer:
a) y = x*70
b) 3430 words
Step-by-step explanation:
b) y = x*70
y = 49*70
y = 3430
Is the relation below a function? If it is a function, state its domain. (0, 3) , (2, -3) , (1, 8) ,(2, 3)
A. The relation is not a function.
B. The relation is a function. The domain is {0 , 1, 2}
C. The relation is a function. The domain is {-3 , 3, 8}
D. The relation is a function. The domain is {-3, 0, 1, 2, 3, 8}
The relation (0, 3) , (2, -3) , (1, 8) ,(2, 3) is a function. The domain is {0 , 1, 2}; Choice B
Definition:
A relation can only be termed a function if it relates each element in its domain to only one element in the range.In essence, When the graph of a function is plotted, a vertical line will intersect it at only one pointThe domain or set of departure of a function is the set into which all of the input of the function is constrained to fall.Read more:
https://brainly.com/question/910323
I WILL MARK BRAINEST!! number 4 please. i know the answer to the question it’s just that i don’t know how they got that answer please help me i’m literally desperate at this point thank you so much
Answer:
2a+2b+4
Step-by-step explanation:
(2a+2b+4)+(3a+8)+(5a+b)=10a+3b+12
Answer:
The perimeter of the triangle is [tex]10a + 3b + 12[/tex], while the two sides is [tex]3a + 8[/tex] and [tex]5a + b[/tex]. To find the missing side, subtract the two known sides from the known perimeter.
[tex](10a + 3b + 12) - (3a + 8) - (5a+b) = 2a+2b+4[/tex]
If we simplify this expression by taking out a factor of [tex]2[/tex], the final answer is: [tex]2a + 2b + 4 = 2(a + b + 2)[/tex].
IF THIS ANSWER HELPED YOU PLZ MARK AS BRAINLIEST :)
YOU CAN ASK ME FOR HELP IN THE COMMENTS.
Step-by-step explanation:
See top.
helppppppppppppppppppppppmeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeemeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer
a) 3 to 8 b) 1 to 9 c) 8 to 6 (4 to 3 if simplified) d) 2/5
Step-by-step explanation:
These are all similar questions. You need to find the Greatest common divisor or factor that are composite integers multiplying to said fraction; in most simpler terms. Take a the GCF is 7, 21 is a multiple of 7 3x exponentiating it then 56 8x. If you need further links I have apps and links that can explain it.
An absolute value function can be written as a piecewise function always, sometimes, or never? Your answer should demonstrate an understanding of both types of functions. Explain your answer using complete sentences.
Hello,
Let us choose an element x of the Real Numbers. So x can either be positive or negative. So we have two case to study :
Case 1 : x is positive.
If x is positive, that is, x = 0, 1, 2, 3, ....
then the absolute value gives us the same number : |0| = 0
|1| = 1
|2|= 2
etc.
so the absolute value of x positive equals x : |x| = x
Case 2 : x is negative.
If x is negative, that is, x = - 1, - 2, -3, .....
then the absolue value gives us the opposite value : |-1| = - (-1) = 1
|-2| = -(-2) = 2
|-3| = -(-3) = 3
(Remember the product of two negative sign is a positive signe : -1 * -1 = +1)
And so we can join both cases as a piecewise function, writing :
|x| = [tex]\left \{ {{x=x if x\geq 0 } \atop {x= - x if x<0 }} \right.[/tex]
so x = x if x ≥ 0 and x = - x if x < 0
Finally the answer is : it depend on the function itself. If the function takes both positive and negative value, then the absolute value of the function will be written as a piecewise function. If the function takes only positive or negative value, then it won't be written as a piecewise function.