Answers
Related Questions
х+5y = 3
3х - 2y = -8
Answers
Subtract 5y from both sides: x=3−5y
Substitute
x=3−5y into 3x−2y=−8
Start with the original equation: 3x−2y=−8
Let x=3−5y: 3(3−5y)−2y=−8
Simplify: 9−17y=−8
Solve for y in 9−17y=−8: y=1
Substitute y=1 into , x=3−5y : x=-2
X=-2
Y=1
Jay bought a painting on sale for 45% off the original price, for $27. What was the price of the painting before the sale?
Answers
Answer:
0.55x = $27
Step-by-step explanation:
Let the price of the painting = x
x - 45% of x = $27
x - 0.45x = $27
0.55x = $27
Divide both sides by 0.55
0.55x/0.55 = $27/0.55
x = $49.09
This graph shows the solution to which inequality???
Answers
Answer:
B. y > (4/3)x - 2
Step-by-step explanation:
The dotted line means that the answer WILL NOT include the line itself, just the space above it. Since the shaded area is above the line, it must be greater than the line.
in January Mr Timms class read 20 books in February his class read 15 books
what is the percent increase or decrease in the number of books they read
Answers
Answer:
5?
Step-by-step explanation:
how many miles can the car ride drive on 11 gallons of fuel
Answers
Answer:
220
Step-by-step explanation:
There are about 20 miles worth of gas per gallon so 20 x 11 = 220
Mike is 5 years old and Randy is 8 years old. Select all proportional relationships that have the same ratio to that of mike and Randy’s age
Answers
Answer:
40
Step-by-step explanation:
The number of fish in a lake triples every 5 years. is It linear or exponential
Answers
Answer:
This would be linear.
Step-by-step explanation:
Linear would be multiplying by a number.
Exponential would be multiplying to a power.
How many significant digits should the product of 11,435 meters and 19.35 meters have?
Answers
Answer:
It has 8 significant figures
Step-by-step explanation:
Product of 11,435 meters and 19.35 meters
Product means multiplication(×)
= 11,435 × 19.35
= 221,267.25
Product of 11,435 meters and 19.35 meters = 221,267.25
It has 8 significant figures
Significant figures are non-zero digits or trapped zeros
If y = -5 when x = 2, find y when x = 8. *
Answers
Answer:
y=1
Step-by-step explanation:
you add how many you went to one side
PLEASE HELP THERE ARE TWO PARTS!!
The graph shows the relationship between the United States dollar and
the euro, the currency of the European Union, in December 2011. Part A:
What is the constant of proportionality shown in the graph? *
Exchange Rate (December 6, 2011)
VA
(400, 300)
300
Number of euros
200
(250, 187.50)
100
(120,90)
100 200 300
400
Number of US dollars
I
Answers
Answer:
The constant of proportionality of the graph is 0.75
Step-by-step explanation:
The coordinates of the points on the lines are;
(400, 300), (250, 187.5), and (120, 90)
Which can be written in a tabular form as follows;
Number of US dollars [tex]{}[/tex] Number of euros
120 [tex]{}[/tex] 90
250 [tex]{}[/tex] 187.5
400 [tex]{}[/tex] 300
Given that the graph is a straight line graph, we can represent the graph with the straight line equation, y = m·x + c
Where;
c = The y-intercept (where the graph meets the y-axis) = 0
m = The slope = The constant of proportionality
[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]m =\dfrac{300-90}{400-120} = \dfrac{210}{280} = 0.75[/tex]
We have, y = m·x = 0.75·x.
Therefore, the constant of proportionality of the graph = 0.75.
Can someone answer this for me?
Answers
Answer:
D 26
Step-by-step explanation:
154+154=308
308-360=52
52 divided by 2
=26
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
I'm not sure if my way of doing it is the way your teacher wants it solved but I would do...
[tex]150+150+x=360[/tex]
so now we just have to solve the equation...
[tex]308+x=360\\x=52[/tex]
ok and now before you judge me that still isn't the answer we still have to divide the 52 by 2 because 52 is the sum of both the smaller angles, so you'll get...26°
choice D
julie is having a nail salon day.She needs to spend $5 for nail polish, $3 for nail polish remover, and $2 for cotton balls.if she does 5 of her friends' nails for $10 each, what will her profit be?
Answers
Answer:
Her profit will be $40
Step-by-step explanation:
Answer:
Her profit would be $50
Step-by-step explanation:
The nail polish is $5, Remover is $3, Cotton balls are $2, That all adds up to ten.
And She has 5 of her friends so Ur multiplying 10 by 5
$10 times 5 equals to $50
18. The price of a pair of shoes was $65. Then, the price was reduced to $52..
Find the percent decrease in the price of the shoes.
(a) 30%
(b) 13% (c) 5%
(d) 25%
(e) none of these
Please show the work
Answers
Answer:
13.
Step-by-step explanation:
65-52=13
65- 52=13 is your answer
Help me please with this question ???
Answers
Answer:
D. 1
Step-by-step explanation:
If you take any two points (x, y), the slope is found by taking the difference of the y-coordinates and dividing that by the difference of the x-coordinates.
Here, we actually are given 4 points of the form (x, y), so we can just arbitrarily choose any two. I'll just go with the first two: (-2, 0) and (1, 3).
The difference of the y-coordinates is:
3 - 0 = 3
The difference of the x-coordinates is:
1 - (-2) = 3
Dividing these gives:
3/3 = 1
The slope is thus 1, and the answer is D.
~ an aesthetics lover
Which part of the figure shows evidence of the use of a compass?
Answers
Answer:
Whichever line is curved like a semi-circle, arch, or a full circle.
Step-by-step explanation:
A compass is a tool used to draw curved lines.
What are two different ways of saying "find the
solution"?
Answers
Answer:
find the difference. find the sum
Step-by-step explanation:
The machine runs 10 hours a day for 5 days a week. How many gallons of yogurt are processed each week?
Answers
Answer:
30 gallons
Step-by-step explanation:
if it fills up 1600 tubs an hour then the answer should be 30 gallons.
what are -2 times -7?
what is -2+-7?
Answers
-2+(-7)= -9
Which describes the reflection of the figure?
A) reflection over the x-axis
B) reflection over the y-axis
C) reflection over the line y=3
D) reflection over the line y=-3
Answers
Answer:
reflection over the x axis
Step-by-step explanation:
always remember reflection over x-axis values of y will change reflection over y axis the values of x will change
Will Give Brainliest if Correct
Answers
Answer:
(a) 0
(b) -3/26
Step-by-step explanation:
(a)
We essentially plug 1 in for x and 2 in for y.
Our expression is [tex]\frac{2x-y}{y^2+1}[/tex], so making the correct substitutions yields:
[tex]\frac{2x-y}{y^2+1}=\frac{2*1-2}{2^2+1}=\frac{2-2}{4+1} =\frac{0}{5} =0[/tex]
So, the answer for part (a) is 0.
(b)
Again, we're now plugging in 1 for x and 5 for y:
[tex]\frac{2x-y}{y^2+1}=\frac{2*1-5}{5^2+1}=\frac{2-5}{25+1} =\frac{-3}{26} =-\frac{3}{26}[/tex]
So, the answer for part (b) is -3/26.
Step-by-step explanation:
So we have the rational expression [tex]\frac{2x -y}{y^{2} +1}\\[/tex]. All we have to do is to just plug the given values for what x and y are.
Solution of a:[tex]\frac{2x -y}{y^{2} +1}\\ \frac{2(1) -(2)}{(2)^{2} +1} \\ \frac{2 -(2)}{4+1} \\ \frac{0}{5} \\ 0[/tex]
Answer of a:[tex]0[/tex]
Solution of b:[tex]\frac{2x -y}{y^{2} +1}\\ \frac{2(1) -(5)}{(5)^{2} +1} \\ \frac{2 -(5)}{25+1} \\ \frac{-3}{26} \\ -\frac{3}{26}[/tex]
Answer of b:[tex]-\frac{3}{26}\\[/tex]
11.
19.4
x 5.37
Estimate. I don’t need the answer immediately.
Answers
Answer:
Approximately 95
Step-by-step explanation:
19 x 5 = 95
Libby bought three shirts that cost $6.79, $11.08, and $8.95. How much did all three shirts cost
Answers
Answer:
$26.82
Step-by-step explanation:
It's just simple addition really. You start with adding 6.79 and 11.08 to get 17.87 and then add 8.95 to 17.87 to get 26.82. Hope this helps.
HELP ASAP
Solve the equation for k:
p= k/K + t
Answers
Answer:
k = p(K+t)
Step-by-step explanation:
p = k/K+t // × (K+t)
p(K+t) = k
Answer:
k = K p - K t
Step-by-step explanation:
Solve for k:
p = k/K + t
p = k/K + t is equivalent to k/K + t = p:
k/K + t = p
Subtract t from both sides:
k/K = -t + p
Multiply both sides by K:
Answer: k = K p - K t
For every 8ft of cord he can make 3 chains how much does jairon need to
make 12 chains
Answers
Answer:
24 ft of cord
Step-by-step explanation:
8ft = 3 chains
16 ft = 6 chains
24 ft = 12 chains
OR
8 x 3 =24
$30 for 2 1/2 hours of work
Answers
Answer:
$75
Step-by-step explanation:
30*2.5 = 75
Which graph shows the solution to the inequality −2(2x+3)≤26?
pls help
Answers
Answer:
the answer is c
Step-by-step explanation:
i mark as brainliest
Answers
Answer:
-6.75
Step-by-step explanation:
Answer:
The answer is D. -7.25
You started the day with a certain amount of money. You lost half of it. Then you lost an additional $100. Afterwards, you were given $5. Then you found $30. Afterwards, you lost half of your money again. You then lost another $8. You then gave away $7. You ended the day with $30. How much did you start with?
Answers
Answer:
$310
Step-by-step explanation:
starting backwards:
30+7=3737+8=4545*2=9090-30=6060-5=5555+100=155155*2=310Answer is $310Answer:
$310
Step-by-step explanation:
45 divided by 8827 please answer soon!!!
Answers
PLEASE HELPPP please
Answers
Answer: -30x⁵y⁷
Step-by-step explanation:
When multiplying exponents, you add them.
Distribute the -5x³ and y² to the terms inside of the parentheses to simplify:
-30x⁵y⁷
Hope this helps!
now that we know that, just multiply everything by it’s like term - coefficient by coefficient, variable by variable
so: (-5*6)(x^3*x^2)(y^5*y^2) = (-30)(x^5)(y^7)
now just combine them: -30x^5y^7