Answers
Answer:
(x, y) = (-8, 19)
Step-by-step explanation:
9x + 3y = -15
-4x - 3y = -25
(9x + 3y) + ((-4x) - 3y) = -15 + (-25)
5x = -40
x = -8.
So,
9x + 3y = -15
9 * (-8) + 3y = -15
-72 + 3y = -15
3y = 57
y = 19
Related Questions
Angela is repainting her kitchen. she estimates that she paints 35 feet every 1/3 hour. how many feet does she paint in 1 hour?
Answers
Answer: 105 feet(make sure to put feet)
Step-by-step explanation:if it only took her 1/3 of an hour to get 35 feet done so 35 x 3=105
please help i dont know what im doing at all
Answers
Answer: 1/2 and 8
Step-by-step explanation:
Factor out a 1/2
1/2(a - 8)
i need help with thisss
Answers
Answer:
width= 223.9 ft
Step-by-step explanation:
perimeter=2(l+w)
948.2=2(250.2+w)
948.2=500.4+2w
948.2-500.4=2w
447.8=2w
w=447.8/2
=223.9 ft
A projectile is thrown upward so that its distance above the ground after t seconds is h=-121t^2 +504t. After how many seconds does it reach it maximum height?
Answers
Answer:
2.08secs
Step-by-step explanation:
Given the equation modeled by the height as h=-121t^2 +504t
The velocity of the object at the max height is zero, hence;
v = dh/dt = 0
dh/dt = -2(121)t + 504
dh/dt = -242t + 504
0 = -242t + 504
242t = 504
t = 504/242
t = 2.08secs
Hence the projectile reaches its maximum height after 2.08secs
In a fish tank there are 10 fish. 5 are goldfish, 1 is an angelfish, and 4 are guppies. If a fish is selected at random, find the probability of getting a guppy or an angelfish.
Answers
Answer:
40% guppy 10% angel
Step-by-step explanation:
What is the function rule for this table? 10 POINTS! BRAINLIEST to correct answer!
Answers
y = 2x
If you line the table vertically, you can see the x value is +1 because how does 0 go to 1, you add one to it.
With the y variable, you can view its being multiplied by 2 since 5x2 = 10 , 10x2 = 20 and so on.
Therefore the function rule is y=2x
Can somebody please hellllp me with thissssss!!! please
Answers
Answer:
A
Step-by-step explanation:
Answer:
59 m
Step-by-step explanation:
16 + 15 + 13 + 15 = 59
the sales tax rate is 5%, if Kayden buys the digital camera priced at $837.41 how much tax will he pay
round your answer to the nearest cent
Answers
Answer:
$41.87
Step-by-step explanation:
5% of 837.41 = 0.05 × 837.41 = 41.8705
Solve x2 – 18x + 81 = 4 by completing the square. Select any solutions that apply.
A. x = –11
B. x = –7
C. x = 7
D. x = 11
Answers
Answer:
7 and 11
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
The asymptote of the function f(x) = 3^x + 4 is y=
Answers
Answer:
your answer is 4
Step-by-step explanation:
Will give, Branliest for anyone who answers.
Answers
150,75
70,35
120,60
110,56
5/2
10/4
15/6
50/20
300 G 150 G 75 G
140 G 70 G 35 G
420 G 210 G 105 G
220 G 110 G 55 G
Which of the following best describes interest as it relates to credit?
A. Additional money earned for having an account
B. The limit for which an individual may use credit
C. The charge for the privilege of borrowing money
D. The total amount a borrower must repay a lender for a loan
Answers
Answer:
C
Step-by-step explanation:
Let's say you wanted to buy a television. The television cost $200 but you only have $100, so you ask your friend for some money. Your friend says they will give you money but you have to pay them back and pay them interest. So when you go pay them, you pay them $100 dollars along with the amount of money your friend wants you to pay them for borrowing their money. In the end you could end up giving them 120 instead of 100.
C. The charge for the privilege of borrowing money
Hope this helps you and you past your test good luck too you.
True or False. The vocabulary words expected value and mean are interchangeable.
Answers
Ayden and his children went into a grocery store and where they sell peaches for $0.75 each and mangos for $1.75 each. Ayden has $20 to spend and must buy no less than 16 peaches and mangos altogether. If Ayden decided to buy 7 mangos, determine the maximum number of peaches that he could buy.
Answers
Answer:
he can buy 10 peaches.
Step-by-step explanation:
7 mangoes will be 12.25. so you subtract his original money(20) from 12.25 which gives you 7.75. then divide 7.75 by 0.75(cost of a peach) and your answer will be 10(rounded off).
What is the surface area, in square inches, of a prism with a length of 10 inches, a width of 7 inches, and a height of 3 inches?
Answers
Answer:
measurement square meter
Step-by-step explanation:
thats good answer
sana po makatulong po sa inyo
po....................
Simplify the expression:
-10(32-6)
—————
3
Answers
Answer: -260
Step-by-step explanation:
Answer:
-260
Step-by-step explanation:
First, we have to distribute -10 to 32 and -6, since 32 - 6 is in parentheses.
So, the expression becomes -320 + 60, because -10 × 32 = -320 and -10 × -6 = 60.
So, -320 + 60 = -260
What will be the cost of the paving if cement costs $26.50 per square metre?
Answers
Answer: $2203.74
Step-by-step explanation:
The data above can be modeled by the function f(x) = 0.0425x^2 + 0.07381x - 0.49107 . Using this equation, predict the skid distance for a car that is driving 50 mph.
Answers
Answer:
f(50) = 109.44943 feet
Step-by-step explanation:
Modeling
The model of a situation where the skid distance f is measured against the car speed x can be expressed as:
[tex]f(x) = 0.0425x^2 + 0.07381x - 0.49107[/tex]
Using this equation, we can predict the skid distance for a car that is driving at x=50 mph by substituting in the equation of the model:
[tex]f(50) = 0.0425*50^2 + 0.07381*50 - 0.49107[/tex]
[tex]f(50) = 106.25 + 3.6905 - 0.49107[/tex]
f(50) = 109.44943 feet
Michael has 38 nickels and quarters in his backpack. If he has a total of $4.50. how many nickels, n, and how many quarters, q, does he have?
Answer Michael has
nickels and
quarters
Answers
Answer:
10 quarters and 2 nickels
Step-by-step explanation:
38 x .5 = 1.90
4.50 - 1.90 = 2.60
10 quarters and 2 nickels.
3+2x = 41
Need help
Show work
Answers
Answer:
x=16
Step-by-step explanation:
when solving for a variable, get the variables to one side of the equation and the numbers to the other side.
3+2x=41
*minus 3 from both sides of the equation to get rid of the number on the side of variables of the equation*
2x=38
to get one variable alone, divide the whole equation by 2
x=16
Taikan has 3 riffle tickets. One hundred were sold. If his name was not drawn for the first place prize, what is the probability that his name will be drawn for the second place prize?
A. 1/1,100
B. 1/1650
C. 2/99
D 1/33
Answers
Answer:
Step-by-step explanation:
3/(100-1)
3/99
1/33
160% of what number is 80% please help!
Answers
Miss Hillard is purchasing candy hearts to distribute to 28 students in her math class and Valentine's Day issue would like each students get a minimum of 15 candy hearts how many will she need to purchase
Answers
Answer:
She needs to buy 420 candy hearts.
Step-by-step explanation:
15*28 = 420
15 per student, and there is 28 students
The number of candy hearts that she needs to purchase will be 420.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Miss Hillard is buying treats hearts to disperse to 28 understudies in her number-related class and Valentine's Day issue would like every understudy to get at least 15 sweets hearts.
Then the number of candy hearts that she needs to purchase will be given as,
⇒ 15 x 28
⇒ 420
The number of candy hearts that she needs to purchase will be 420.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
scientific notation --> 2.34* 10^14
written in standard form
Answers
Answer:
there's 104 days of summer vacation
So I need help with 1 over x minus 8 so like 1/x-8 this is a negative exponent
Answers
Answer and Step-by-step explanation:
one divided by (in parentheses) x minus eight should look like this:
[tex]\frac{1}{x-8}[/tex]
This is a graph of this expression.
#teamtrees #WAP (Water And Plant)
A lumberjack found 280 trees on a 1.5-acre plot ready for harvest. On the west side, he found 260 trees on a 1.9-acre plot. Which plot has a greater rate of harvest-ready trees per acre?
Answers
Answer:
280 trees on a 1.5 acre plot
Step-by-step explanation:
It has more trees with less acres already without any calculations.
Help me with these questions, explaining it would be awesome!!
Answers
Answer:
i hope my answer help you:))
Step-by-step explanation:
{1st question}
b=3b-18=12
=3b=12+18
=3b=30 ( divided by 3)
then b=10
{2nd question}
d = -42-7d=49
=-7d=49+42
=-7d=91 ( divided by -7)
then d= -13
The temperature at 6 AM what is -12°F the temperature increased by 1/2°F each hour for six hours what is the temperature in degrees Fahrenheit at noon
Answers
1/2 degree x 6 hours = 3 degree increase.
-12 + 3 = -9
The temperature at noon was -9 degrees.
a rectangle poster is 2/3 meters long and 1/2 meters wide what is the area of the poster in square meters
Answers
1/3 square meters
Step-by-step explanation:
Area = length x width
2/3 x 1/2 = 2/6 = 1/3
I need help please!!!! RIGHT NOW!!!