Hey! I was wondering if someone could help me with this problem? (: I started it off but I need help for anyone who can help me thank you!
Answers
Answer:
(-4, 2)
Step-by-step explanation:
5x + 15y = 10 ---› Eqn. 1
5x - 10y = -40 ---› Eqn. 2
Subtract the eqn 2 from 1 to eliminate the x variable
Thus:
25y = 50
Divide both sides by 25
y = 50/25
y = 2
Substitute y = 2 into eqn 1.
5x + 15y = 10 ---› Eqn. 1
5x + 15(2) = 10
5x + 30 = 10
Subtract 30 from each side
5x = 10 - 30
5x = -20
Divide both sides by 5
5x/5 = -20/5
x = -4
Solution would therefore be (-4, 2)
Related Questions
PLEASE HELPPPPP :)!!!
Answers
Answer:
answer: 521
Hope that helps!
Sonya and Jade are traveling from Barcelona to Madrid. They are deciding between 333 different types of transportation (bus, train, and plane) and 222 different times (morning and evening). They each created a display to represent the sample space of randomly picking a type of transportation and a time. Whose display correctly represents the sample space? Choose 1 answer: Choose 1 answer: (Choice A) A Sonya only (Choice B) B Jade only (Choice C) C Both (Choice D) D Neither Sonya's display: \quad Jade's display: \text{B}= \text{Bus} \\ \text{T}= \text{Train} \\ \text{P}= \text{Plane}B=Bus T=Train P=Plane \text{M}= \text{Morning} \\ \text{E}= \text{Evening}M=Morning E=Evening \quad
Answers
Answer:
Step-by-step explanation:
The answer is (Sonya only) don’t know the explanation but I literally got the answer right soo trust me.
please answer my Questions I have Summative Assessment math
Answers
Answer:
a. Yes
b. 3x+7
c. 105 cm
Step-by-step explanation:
a. a(1)+b=10
a(2)+b=13
when you solve this by elimination or simultaneously: a=3 and b=7
∴ f(x)=3x+7
b. f(x)=3x+7
c. 3(35)+7=112 cm
What is the product of (0.061) • (0.43)?
Answers
Answer:
Step-by-step explanation:
(0.061)(0.43) =0.02623
What is the domain of the function Y = tan(x/8)?
Oall real numbers except 4pi+4npi where n is any integer
Oall real numbers except 4pi+8npi where n any integer
Oall real numbers except 8pi+4npi, where n is any integer
Oall real numbers except 8pi+8npi, where n is any integer
Answers
Answer:
B) all real numbers expect 4pi+8pi where n is any integer
Step-by-step explanation:
The domain of the function y = tan(x/8) is given by: All real numbers except 4π+8nπ , where n is any integer.
What is the domain of a function?The domain is the set that contains all possible input values for the function.
Since we know that Tangent of an angle is sine of the angle divided by the cosine of the angle, and the cosine is 0 at:
π/2 + nπ
Hence, let a composite tangent function , the domain is given by:
f(x) does not equal to π/2 + nπ
we have that , hence the domain is:
all real numbers except 4π+8nπ
All real numbers except 4π+8nπ, where n is any integer.
More can be learned about the domain of a function at brainly.com/question/27730656
#SPJ7
Rewrite the equation of the line in slope intercept form.
4x−8y=32
Answers
Answer:
y=1/2x-4
Step-by-step explanation:
subtract 4x from the left side and the right side. It becomes:
-8y=-4x+32
divide -8 from both sides and it becomes:
y=1/2x-4
Write an algebraic expression for the following:
5 less than twice a number
Answers
5 less would be -5
twice a number would be *2
so the expression would be
2x - 5
Answer:
2x - 5
Step-by-step explanation:
let assume the number is x:
Therefore 2x - 5
Mark estimated that he would spend $300 of his paycheck on seven items that cost $50 each. Why is this not reasonable?
A. It is not reasonable because seven items could not all cost $50.
B. It is not reasonable because seven items at $50 each, would cost a total of $350.
C. It is not reasonable because seven items at $50 each would only cost $420.
D. It is not reasonable because he would have too much money left over.
Answers
HELP ME PLS!!!! (PURPLE DOT IS NOT THE ANSWER!!!!!!)
Answers
Answer:
B
Step-by-step explanation:
i gottt youu
Answer:
it is B
Step-by-step explanation:
I need help fast please
Answers
Answer:
336
Step-by-step explanation:
hope this helps sorry if not correct
The relationship between the length and weight of certain sea turtles can be approximated by the equation L = 0,55 W,
where L is the length in feet and W is the weight in pounds. If a sea turtle is 2.5 feet long, which is closest to its weight?
Answers
Answer:
4.55 pounds
Step-by-step explanation:
From the above question , we are told that:
The relationship between the length and weight of certain sea turtles can be approximated by the equation
L = 0.55 W,
where
L is the length in feet
W is the weight in pounds. If a sea turtle is 2.5 feet long, which is closest to its weight?
L = 2.5 feet
Hence,
2.5 = 0.55W
W = 2.5/0.55
W = 4.5454545455 pounds
Approximately, weight of the sea turtle in pounds = 4.55 pounds
Plz help me.... swith ybsubs ys
Answers
Answer: Ummm?
Step-by-step explanation:
Answer:
Option C
(-4,-3)
F is inversely proportional to d^2.
When F = 5, d = 9
Work out d (positive value rounded to 2 DP) when F = 3
Answers
Answer:
11.6
Step-by-step explanation:
F = k/ d^2
where k = proportionality constant
k = Fd^2
k = 5 * 9^2
k = 5*81 = 405
d = (K/F)^1/2
d = (405/3)^1/2
d = 11.62 =11.6
Answer:
11.62
Step-by-step explanation:
F is inversely proportional to d^2, so
[tex]F=\frac{k}{d^2}[/tex]
for some constant k. To find k plug in given values for F and d.
[tex]5=\frac{k}{9^2}\\5=\frac{k}{81}\\k=405[/tex]
Now you can find d for F = 3.
[tex]3=\frac{405}{d^2}\\\\3d^2=405\\\\d^2=135\\d=\sqrt{135}\approx 11.62[/tex]
for brainiest:):):):):):):):)
Answers
Answer:
(a) 0.6
(b) 0.4
Step-by-step explanation:
If I am reading the little table right, You have made 9 shots, and have missed 6 of them. Therefore, in total, you have made [tex]9+6=15[/tex] shots.
The definition of probability is the number of events of a desired outcome divided by the total number of outcomes. Since you wish to make a shot for part a, the number of desired outcomes thus far is 9, out of 15 total shots. Thus,
[tex]P([/tex]making a shot[tex])=\frac{9}{15}=\frac{3}{5}=0.6[/tex]
Since making a shot and not making a shot are mutually exclusive events, and the only two events that could occur when shooting a basket, the probability of not making a shot and the probability of making a shot are all of the possible outcomes, and is thus equal to 1.
[tex]P([/tex]making a shot[tex])+P([/tex]missing a shot) [tex]=1[/tex]
[tex]P([/tex]missing a shot[tex])=1-P([/tex]making a shot[tex])[/tex]
[tex]P([/tex]missing a shot[tex])=1-0.6=0.4[/tex]
QED
Denise has 12 yards of fabric. How many ties can be made from the fabric of each tie uses 3/4 yard of fabric?
Answers
Answer:
16 ties be be made from it
I have to write at least 20 character for it to let me post
Answers
Answer:
Choice #4 is the most likely fit.
Two forces, one of 45 pounds and the other 50 pounds, act on the same object. The angle between the forces is 33°. Find the magnitude of the resultant vector. Pls help :( cant afford to fail
Answers
Answer:
The magnitude of the resultant force is: 27.40 pounds
Step-by-step explanation:
Given
[tex]F_1 = 45[/tex]
[tex]F_2 = 50[/tex]
[tex]\theta = 33[/tex]
Required
The magnitude of the resultant vector
To do this, we apply cosine formula
[tex]R^2 = F_1^2 + F_2^2 - 2 * F_1 * F_2 * \cos(\theta)[/tex]
This gives:
[tex]R^2 = 45^2 + 50^2 - 2 * 45 * 50 * \cos(33)[/tex]
[tex]R^2 = 2025+ 2500 - 4500* 0.8387[/tex]
[tex]R^2 = 2025+ 2500 - 3774.15[/tex]
[tex]R^2 = 750.85[/tex]
Take square roots of both sides
[tex]R = \sqrt{750.85\\[/tex]
[tex]R = 27.40[/tex]
What is the y intercept for the equation –2x + 5 = –10?
a.) (0, 5)
b.) (0, –2)
c.) (0, 2)
d.) (0, –5)
Answers
please help lol, im a baka-_-
Answers
Answer:
4
Step-by-step explanation:
3(x+6) = 30
(x+6) = 30/3
x = 10 - 6
x = 4
Answer:
Baka T_T
3x+18=30
3x=12
x=4
Step-by-step explanation:
I don’t understand how to do this
Answers
Answer:
You basically plug them in.
x y
2, 20
4, 12
5, 8
6, 4
28 - 4(x) = y
28 - 4(2) = y
28 - 8 = y
20 = y
20 POINTS BRAINLIEST FOR CORRECT ANSWER !! PLEASE HELP
Describe the similarities and differences between the graphs of the functions in items 8 and 9. How are these similarities and differences indicated by the functions themselves?
Item 8: y=x^2-3x-4
Item 9: y=-x^2+3x+4
Answers
Answer:
Step-by-step explanation:
similarities:
both items (equations) have the same roots: (-1,0) and (4,0),
both items are in quadratic form
both have a relative min/max at x=1.5
differences:
both have different y-intercepts:
item 8: (0,-4)
item 9: (0,4)
2.4.27
The length of a rectangle is 9 centimeters less than its width. What are the dimensions of the rectangle if its area is 70 square centimeters?
The length of the rectangle is
cm.
Answers
Answer: 5, 14
Step-by-step explanation:
;)
PLEASE HELP ME I NEED TO PASSS
Which statements about the graph of the exponential function f(x) are TRUE? Select all that apply.
The asymptote is y = - 1
f(x) is positive for all x-values less than 1.
The y-intercept is 3
The domain is all real numbers
As x increases , f(x) approaches , but never reaches, -1
The x-intercept is 2.
The range is all real numbers
graph is in the picture
Answers
Answer:
Step-by-step explanation:
When x =3 y=-1
X =2 y =0
X=0 y =3
X = -1 y=6
So c g d f true
Answer:
F
Step-by-step explanation:
Blake has 864 square inches of material with which to create a hollow three-dimensional container. He decides to make either a cube or a sphere.
Which solid would have the greater volume? What is the greatest volume he can achieve with this amount of material?
Answers
Answer:
I think it's a cube, because the cube has bigger spaces because of the edges, but I don't know how much...
liner equations please help with answer!
Answers
Answer:
n = - [tex]\frac{4}{7}[/tex]
Step-by-step explanation:
Given
[tex]\frac{2}{3}[/tex] (1 + n) = - [tex]\frac{1}{2}[/tex] n
Multiply both sides by 6 ( the LCM of 3 and 2 ) to clear the fractions
4(1 + n) = - 3n ← distribute left side
4 + 4n = - 3n ( add 3n to both sides )
4 + 7n = 0 ( subtract 4 from both sides )
7n = - 4 ( divide both sides by 7 )
n = - [tex]\frac{4}{7}[/tex]
Find the measure of angle 3
A. 45°
B. 90°
C. 30°
D. 12°
Answers
The circumference of a compact disc is 28.26 cm. What would the radius of the disc be?
Answers
Answer:
88.7364
Step-by-step explanation:
3.14 TIMES 28.26
can somone help plz i need help
Answers
Answer:
about 7.3 units
Step-by-step explanation:
to find the answer you do Pythagorean theorem
so you have (-9, -4) and (-2, -6)
you do X1-X2 and Y1-Y2
so -4-(6)=2
and -9-(-2)= -7
now you do a^2 + b^2 = C^2
so 2^2 + -7^2 = C^2
which is 4 + 49= C^2
53=C^2
√53=7.3
so 7.3 units :)
Please help! i only have 4 more hours to get caught up!!
Answers
Answer:
I thinks it's y=3x+5
Step-by-step explanation:
try to use desmos to calculate it
Find the values of x, y, and z