Answer:
x=2
y=3
Explanation
1. Solve x + 2y = 8 for x:
x + 2y = 8
x+2y + − 2y = 8 + −2y(Add -2y to both sides)
x = −2y + 8
2. Substitute −2y + 8 for "x" in 5x − 2y =4
5x − 2y = 4
5 (−2y + 8) − 2y =4
−12y + 40 = 4 (Simplify both sides of the equation)
−12y + 40 + −40 = 4 + −40(Add -40 to both sides)
−12y = −36 (Divide both sides by -12)
y = 3
3. Substitute 3 for "y" in x= −2y + 8
x = −2y + 8
x = (−2) (3) + 8
x = 2 (Simplify both sides of the equation)
Answer:
x = 2 and y = 3
I will give 50 points to whoever answers it!! What is the rate of change and initial value for the linesr relation that includes the points shown in the table?
x y
1 20
3 10
5 0
7 -10
A. Initial value: 20, rate of change: 10
B. Initial value: 30, rate of change: 10
C. Initial value: 25, rate of change: -5
D. Initial value: 20, rate of change: -10
PLEASE HELP ME ILL GIVE BRAINLIEST
I THINK you have it correct, but I'm not 100% sure.
Answer:
It’s correct
A bouncy castle can be hired for party's. The cost is given by Cost=£4.70 times number of children + £86. What is the cost of the bouncy castle for 13 children. At a different party, the cost of hiring the bouncy castle was £165.90.How many children went to the party.
Answer:
A. £147.10
B. 17 children
Step-by-step explanation:
Let
Number of children = x
Cost of hiring a bouncy castle = £4.70 * x + £86
What is the cost of the bouncy castle for 13 children
Cost of hiring a bouncy castle = £4.70 * 13 + £86
= £61.1 + £86
= £147.10
How many children went to the party when cost of hiring bouncy castle = £165.90
Cost of hiring a bouncy castle = £4.70 * x + £86
£165.90 = £4.70 * x + £86
165.90 = 4.70x + 86
165.90 - 86 = 4.70x
79.9 = 4.70x
x = 79.9/4.70
= 17
x = 17 children
find the length of side a
Answer:
Step-by-step explanation:
Answer:
the anser wouold be 5
Step-by-step explanation:
1 is too small 25 is too big 313 is out rageesty to big
-5 + 3d + 6 - 4d. in simplest form
Answer:
1-1d
Step-by-step explanation:
i think that is the answer
Answer:
-1-d
Step-by-step explanation:
What is the value − 3 1/4 ∙ 2 1/3
Answer:
the value of this is-217÷4 = -54.25
i do not know the answer to this equation √56245
Answer: 237.160283353
Step-by-step explanation:
Answer:
the answer is 237.1602834
source: Calculator
The system of equations has .
Answer:
A System of Equations has two or more equations in one or more variables Many Variables So a System of Equations could have many equations and many variables.
Step-by-step explanation:
A system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line). This article reviews all three cases. One solution. A system of linear equations has one solution when the graphs intersect at a point.
pls i need help ASAP best answer gets brainlest
Answer:
3^12
Step-by-step explanation:
Simplify the expression, 3^10/3^-2.
Next, solve for the sum. which will be 3^12.
Full answer is 531441
Answer:
3^12
Step-by-step explanation:
Why?
1. (3^5)^2 = 3^10
2. 3^10 - (-2)
Answer: 3^12
please help asap. thank you very much
The number of fish in a lake decreased by 25% between last year and this year. This year there are 45 fish in the lake. What was the population of last year
Answer:
The population of last year was 60.
Step-by-step explanation:
From the information given, as you know that the number of fish in a lake decreased by 25% between last year and this year, the amount of fish this year represents 75% of last year's population as: 100%-25%=75%. With that, you can use a rule of three to find last year's population tha would represent 100% given that 75% is equal to 45 fish.
75% → 45
100% → x
x=(100*45)/75= 60
According to this, the answer is that the population of last year was 60.
what is−1/2−(−5/9) as a fraction in simplest form
Answer:
1/18
Step-by-step explanation:
-9/18 + 10/18
Answer:
1/18
Step-by-step explanation:
A math club decided to buy t-shirts for its members. A clothing company quoted the following prices for the T-shirts. Which equation best describes the relationship between the total cost, y, and the number of t-shirts, x?
Answer:
c
Step-by-step explanation:
A teenager has $20 to spend at the fair. The teenager rides 5 roller coasters and has $13.75 left. Each roller coaster costs the same amount.
How much does each roller coaster cost to ride, in dollars and cents?
Answer:
Each ride costs $1.25
Step-by-step explanation:
$20 - $13.75 = $6.25
$6.25 / 5 = $1.25
Answer:
1.25 per ride
Step-by-step explanation:
Subtract 13.75 from 20. You get 6.25. Divide 6.25 by 5.
If two lines are parallel, and one line has a slope of 3/2, what is the slope of the other line?
Plz help due tomorrow
Answer:
Step-by-step explanation:
4h/5
11-3(x+2)
Expand and simplify
Answer:
5-3x
Step-by-step explanation:
To expand this, we start with the distribution of -3 into the parentheses containing x+2
This leaves us with
11-3x-6
From here, simplifying involves combining like terms. The only like terms we have are the constant values 11 and -6
We combine them by subtracting 11-6 to get 5.
This leaves us with our answer,
11-6-3x
5-3x
An alternate way of writing this would be
-3x+5
But this would only be required if we were asked to express the answer in decreasing degree, so don't worry about that for now
Arianna buys computer games from an online store. Each game she orders costs $25, and shipping for her total order is $10. Arianna wants to spend $110. How many computer games can Arianna buy? Create an equation for the problem here.
Answer:
She can order 4 computer games.
Step-by-step explanation:
110-10=100
100÷25=4
please help me with this question i need it quick!
The answer to the question is A, 1 1/3.
3. Kate's "Dining Card" entitles her to $10 off the price of a meal after a 15% tip has been added to the
cost of the meal. If, after the discount, the bill is $32.55, how much did the meal originally cost?
help meeeeee need it nowww
help with this word problem???? :)
Answer:
I'm pretty sure it's 144
Step-by-step explanation:
1. 160 divided by 5 is 32 so 1 quart = 32 pounds
2. 32 times 4.5 = 144
P.S Mark as brainliest rate 5 stars and hit that thanks button!
can someone tell me what circumference means and give an example of it
Step-by-step explanation:
distance around a circle- like middle of an apple
Answer:
The circumference is defined as the distance around something round or rounded, especially the distance around the edge of a circle. An example of circumference is the distance around the outer boundary of a circle. The line bounding a circle, a rounded surface, or an area suggesting a circle.
When dividing two numbers written in exponential notation, what do you do with the exponents of 10?
Rewrite -3- (-4) as an addition equation. Your answer answer
Answer:
-3 + 4 = 1
Step-by-step explanation:
Minus with minus makes a positive.
Is , divisible by , , , , , , or 0?
A. Reflection
B. Rotation
C. Translation
D. No Transformation
Answer:D I think might be wrong
Step-by-step explanation:
Two angels are supplementary. The measure of the large angle is four more than three times the measure of the small angle. Find the measure of both angles.
Answer:
The measure of the two supplementary angles is
Small angle = x = 44°
Large angle = y = 136
Step-by-step explanation:
Supplementary angles are two angles whose measures add up to 180° .
Let
Small angle = x
Large angle = y
x + y = 180°.... Equation 1
The measure of the large angle is four more than three times the measure of the small angle
Hence: y = 4 + 3x
We substitute 4 + 3x for y in Equation 1
x + 4 + 3x = 180°
4x + 4 = 180°
4x = 180° - 4
4x = 176
x = 176/4
x = 44°
Solve for y
y = 4 + 3x
y = 4 + 3(44)
y = 4 + 132
y = 136°
Therefore, the measure of the two supplementary angles is
Small angle = x = 44°
Large angle = y = 136
Which equation is shown by the model?
Answer Asap please!
Harry's math test scores are listed below. 95, 90, 85, 40, 100, 100, 85, 90 Which measures of central tendency most closely describes Harry's overall performance on the math test?
Answer:
85.6%
Step-by-step explanation:
To get two overall performance of Harry, we need to calculate his average score.
Average is also known mean score.
Mean = sum of the score/Total math subjects offered
Mean = 95+ 90+85+40+100+100+85+90/8
Mean = 685/8
Mean = 85.6
Hence her overall performance is 85.6%
The measure of central tendency used is 85.6%
plz answer asap!!!!!!!!!!!!!!!!!!!!!!
Answer:
It can be represented by the expression 2r, or “two times the radius.” So if you know a circle's radius, you can multiply it by 2 to find the diameter; this also means that if you know a circle's diameter, you can divide by 2 to find the radius. Find the diameter of the circle.
Step-by-step explanation:
you'r welcome :)