Answer:
In order to solve a system of equations using elimination, you will have two equations, for example, 2x+3y=15 and x-3y=3, and for elimination, you want to find two similar terms that can be multiplied to be the same term, so 3y and -3y. YOU WILL NEED ONE TO BE POSITIVE AND ONE TO BE NEGATIVE, so you may have to multiply with a negative to get that. After you have the same terms, with different signs, you will solve, and because one is positive and one is negative, they will cancel out. The work is down below.
Step by-step explanation:
2x+3y=15
x-3y=3
_________
3x+0=18
3x=18
x=6
in order to solve for y, you will plug x into one of the original equations!
2x+3y=15
2(6)+3y=15
12+3y=15
-12 -12
3y=3
y=1
so your systems of equations are (6,1), i hope this helps!
Write the phrase as an expression.
a number t cubed
An expression is
Answer:
t to the 2 power
Step-by-step explanation:
The expression for a number t cubed is t³.
What is Expression?A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. Let's examine the writing of expressions. The other number is x, and a number is 6 greater than half of it. In a mathematical expression, this proposition is denoted by the expression x/2 + 6.
As an illustration, the phrase x + y is one where x and y are terms with an addition operator in between.
Given statement:
a number t cubed
Here the number be t.
So, the number t is cubed which can be written as
= t³
Hence, the expression is t³.
Learn more about expression here:
https://brainly.com/question/14083225
#SPJ2
Hanna's dad is designing a new rectangular garden for his backyard. He has a 20ft fence to put around the garden. He wants the length of the garden to be 2 1/2 longer than its width. What must the width of the garden be?
Answer:
3 3/4 feet
Step-by-step explanation:
Given
Perimeter of the garden = 20ft
If he wants the length of the garden to be 2 1/2 longer than its width, then;
L = 2 1/2 + W
L is the length
W is the width
Perimeter of the garden = 2(L+W)
P20 = 2(5/2 + W+W)
20 = 5 + 2W+2W
20 - 5 = 4W
15 = 4W
W = 15/4
W = 3 3/4 ft
Hence the width of the garden is 3 3/4 feet
I need help with these four
Answer:
True, b), c), b)Step-by-step explanation:
Q1
TrueQ2
b) sin = opposite/hypotenuseQ3
Cos A = 0.1908A = arccos 0.1908A = 79° ⇒ Option c)Q4
tan A = 16/19A = arctan 16/19A = 40° ⇒ Option b)Pls I need help and I want a real answer it’s a test
(3, 3)
(2.-4)
Sorry I answered late...I did some research and did my math eqution on this...welcome. finally finish
Factor this polynomial using the factor theorem.
x^2 + 6x+ 9
Answer:
(x+3)(x+3)
Step-by-step explanation:
I hopw this helps ;-)
You go to the Footlocker to purchase a pair of Jordans, the price for them is $240.00. The sales tax is 7.5%. How much will you have to pay for them? $240.00 times 7.5%
Answer:
258
Step-by-step explanation:
[tex]\frac{a}{w}[/tex]=[tex]\frac{p}{100}[/tex]
[tex]\frac{a}{240}[/tex]=[tex]\frac{0.075}{100}[/tex]
240x0.075=100a
=0.018x100
=18+240
=258
.Solve: 14 - 4.954 pls
Answer:
9.046
Plz mark Brainliest- Lily ^_^
Help my little cousin, shes only 10 yrs old!
ITS DUE IN 10 MINS!
Miah is 4 years old. Sophia is 3 times the age as Miah! Clara is 2 times the age as Sophia. How old is Sophia and Clara?
Answer:
Sophia is 12 Clara is 24
Step-by-step explanation:
If Sophia is 3 times the age of Miah, we can multiply Miah's age (4) by 3 to find out how old she is. 4 x 3 = 12.
We can kind of do the same thing to find Clara's age except we are multiplying 12 by 2. 12 x 2 = 24
(hope this helps)
Plz help is it B i will mark u brainliest
No, not quite. The inequality graphed should look something like this:
PLS HELP! Number 3..
Answer:
BRO ARE YOU IN 3RD GRADE
Step-by-step explanation:
Which value of p is a solution to this inequality: 10p - 8 2 12?
A: -1
B: 0
C: 1
D: 2
Answer: d
Step-by-step explanation:
Samir goes to a farmers market to buy some fruit. He fills a large bag with 24kg of apples. He realises that he cannot carry this weight,so puts some of the apples into a smaller bag. The weight of the apples in the large bag is 6kg larger than the smaller bag. What is the weight of the smaller bag
Answer:
9 kg
Step-by-step explanation:
The total weight is 24 kg. The difference between the large bag and the small bag is 6 kg. 15 + 9 = 24. 15 - 9 = 6. Therefore, the smaller bag weighs 9 kg.
Analyze the table representing five experiments with an increasing number of trials. The table shows the frequency of a coin landing heads up or tails up.
A 4-column table with 5 rows. Column 1 is labeled Experiment with entries 1, 2, 3, 4, 5. Column 2 is labeled Trials with entries 20, 40, 60, 80, 100. Column 3 is labeled Heads with entries 12, 25, 20, 35, 48. Column 4 is labeled Tails with entries 8, 15, 40, 45, 52.
What can you predict regarding the probability of the coin landing heads up?
A. The frequency does not change with more trials.
B. The experimental probability increases with more trials.
C. With more trials, the frequency of heads up will equal the frequency of tails up.
D. The frequency of heads up decreases with more trials.
Answer:
C. With more trials, the frequency of heads up will equal the frequency of tails up.
Step-by-step explanation:
just took the test on edge
Answer:
C
Step-by-step explanation:
simplify - 2x +4 +5x - 3
Answer:
3x + 1
Step-by-step explanation:
plz mark as the brainliest
N/9=-11
Help pls thanks
Answer:
N=-99
Step-by-step explanation:
To get N by itself, we need to undo dividing by 9 to both sides and instead multiply by 9 on both sides:
N/9=-11
(N/9)*9=-11*9
9N/9=-99
N=-99
15 and start fraction 5 over 12 end fraction minus 11 and one-eighth A. 4 and start fraction 7 over 24 end fraction B. 4 and seven-twelfths C. negative 4 and one-third D. negative 4 and start fraction 7 over 24 end fraction
Answer:
the answer is A :)
Step-by-step explanation:
graph the solution set for this inequaltity: -6x-3y≤18
Answer:
Step-by-step explanation: Graph it by finding the boundary line y≥ 6-2x
Graph:
Answer:
y ≥ -2x – 6
[y is greater than or equal the negative quantity of two x minus six]
[any point on or above the line y = -2x –6]
example of solutions: {(0,-6) (1,-8) (2,-10), (3,-12), (1,-7), ...}
PLEASE HELP WITH MY MATH QUESTIONS ILL GIVE BRAINLIEST
its only on simple interest rate
can someone help me with just 5 questions please?
whats the question? it is not stated in the question
Which set of lengths are the side lengths
of a right triangle?
A 1,9, 12
C 5, 10, 20
B 3,4,5
D 7, 11, 13
Answer: 3,4,5
Step-by-step explanation:
The right triangle theorem states the the two legs added together squared equal the hypotenuse squared
3^2+4^2=25
square root of 25 is 5 so b is 3,4,5 is the answer
HELP WILL MAKE BRAINLIEST
Answer: A= 110 B=22.5 C=0
Step-by-step explanation:
Estimate the sum or difference 4/5 4/7
Classify the polygon by its number of sides. Does the polygon appear to be regular or
not regular?
heptagon, not regular
heptagon, regular
O octagon, not regular
octagon, regular
Answer:
octagon (regular)
Step-by-step explanation:
because it has the equal sides 6
if abby lee miller hit you what would you do
Answer:
nothing cause she scares me
Step-by-step explanation:
Answer:
smack that gurl
Step-by-step explanation:
but also be scared for my life
Brainliest? lol
Write 1.9 × 10^4 without exponents
Answer:
19000
Step-by-step
Answer:
1.9 x 10000
Step-by-step explanation:
If you want to solve 1.9 x 10000. Then it would be 19,000.
solve the inequality 2c over 3 +1>7
Answer:
c > 9
Step-by-step explanation:
Here, we want to solve an inequality;
2c/3 + 1 > 7
2c/3 > 7-1
2c/3 > 6
2c > 3(6)
2c > 18
c > 18/2
c > 9
True or False: You can tell if two ratios form a proportion if their cross products are equal. True O False
Answer:
Step-by-step explanation:
False
2x+5y=14 4x+2y=-4 solve by elimination
Answer:
Hi! The correct answer is (-3,4)
Step-by-step explanation:
~Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables~
Sonya goes into a newsagent's. She buys 3 items. They cost £1.25, 45p and £2.50. Sonya uses her calculator to check the total cost. The calculator gives this answer. 4.2 Is this answer correct?.
Answer:
No she is not correct
Step-by-step explanation:
Because when you add 1.25+0.45+2.50=4.14
not 4.2
the answer to
6+2(17-13)²
Answer:
38
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
hope this was helpful! ^^
Enter an algebraic equation for the sentence. Use x as your variable.
17 less than 4 times a number is 8 more than half of the number.
An equation is
Answer:
4x-17=x/2+8
Step-by-step explanation:
