Answer:
x=4, y=-1
Step-by-step explanation:
x=3y +7. equation 1
3x+4y=8. equation 2
substitute equation 1 into equation 2
3 (3y +7)+4y =8
9y+21+4y=8
13y+ 21=8
13y=8-21
y=-13/13
y=-1
substitute the value of y into equation 1
x=3(-1)+7
x=-3+7
x=4
What’s mean by report this answer
Answer:
Like make it bad.Its offensive
Step-by-step explanation:
Stock A changed by - $2,60 during the day. Stock B changed by 3
times that amount. How much did Stock B change during the day?
Answer:
$7.80
Step-by-step explanation:
$2.60 * 3 = $7.80
Do numbers with exponents represent rational or irrational numbers? Explain your answer.
9514 1404 393
Answer:
either
Step-by-step explanation:
They could represent either:
2^2 = 4 . . . a rational number
2^(1/2) = √2 . . . an irrational number
The fact that a number has an exponent does not make it either rational or irrational.
__
Additional comment
You can also consider irrational numbers with exponents.
(∛2)^2 = 2^(2/3) . . . irrational
(√2)^2 = 2^1 . . . . . . rational
whats the answer to number 5 please and thank you? please write down the steps
please help
Answer:
67
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
x + 55 = 90 (Right angle triangle)
x = 90 - 55
x = 35
Please mark as brainliest.
PLEASE FAST HELP PLS I BEG U
Answer:A.,C.,D that is the answer
Step-by-step explanation:
A. it has no rotational symmetry
B. It has rotational symmetry with an angle of rotation of 180°
C. It has point symmetry
D It has recreational symmetry
PLEASE HELP WILL MARK BAINLIST
Find the 62nd term of the arithmetic sequence -27, -21, -15
The 62nd term of the arithmetic sequence -27, -21, -15 is 339
Arithmetic sequenceThe nth term of an arithmetic sequence is expressed as:
Tn =a+(n-1)d
Given the sequence -27, -21, -15
a is the first term = -27
d is the common difference = -21 + 27 = 6
n = 62
Substitute
T62 = -27 + (62-1)(6)
T62 = -27 + 61(6)
T62 = -27 + 366
T62 = 339
Hence the 62nd term of the arithmetic sequence -27, -21, -15 is 339
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can i get some help plz with this
Answer:
translation then reflection is the answer
Step-by-step explanation:
I need HELP ASAP RIGHT AWAY
Answer:
line c and e
Step-by-step explanation:
YOO HELPP
I’m bad at math
Answer:
i love you
Step-by-step explanation:
Answer:
1/2(n-3) or (n-3)/2
Step-by-step explanation:
846 x (84) what is it?
What is the least common facter of 9 and 12?
Answer:
3
Step-by-step explanation:
A librarian wants to spend no more than $800 on some new desks and chairs for the library. The librarian decides to spend $320 on desks.
If each chair costs $24, what is the maximum number of chairs the librarian can buy for the library and stay within the budget?
Answer:
I think 20
Step-by-step explanation:
480/24
The maximum number of chairs that the librarian can buy is 20
What are mathematics operations?
A mathematical operation is a function that converts a set of zero or more input values (also called "b" or "arguments") into a defined output value. The number of operands determines the operation's arity. Most commonly studied operations are binary operations (i.e., operations of arity 2), such as addition and multiplication, and unary operations (i.e., operations of arity 1), such as additive and multiplicative inverses.
• Zero-arity operations, or nullary operations, are constants, and mixed products are arity three operations, or ternary operations.
Since we are given the amount total budget and the total amount for the desks then the only variable missing is the maximum amount of chairs. This can be solved with the following equation in which :
s represents = the number of chairs,
and we simply solve for s.
800 = 320 + 24s ... subtract both sides by 300
500 = 24s ... divide both sides by 24
20.83 = s
Now we see that the maximum number of chairs that the librarian can buy is 20 because 21 would make her go over the budget and you cannot have 0.83 of a chair.
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Write an equation of the line in standard form with integer coefficients. the line through (-2, 2), (1, -4). O A. y+2x=-2 B. y+2x=6 C. 2y+x=2 D. 2y+x=-6
Answer:
A
Step-by-step explanation:
K=(y1-y2)/(x1-x2)=(2+4)/(-2-1)=-2
y=-2x+b
2=-2*-2+b
b=-2
y=-2x-2
y+2x=-2
The equation of the line in standard form with integer coefficients is → y + 2x = - 2.
What is the general equation of straight line?The general equation of straight line is -
y = mx + c
where 'm' represents the slope of the line and 'c' is the y - intercept.
Given is a line that passes through the points -
(-2, 2), (1, -4)
We can calculate the slope of the line using the two coordinates given -
(-2, 2), (1, -4). The slope will be -
m = (- 4 - 2)/(1 + 2)
m = -6/3
m = - 2
Assume that the equation of line is -
y = -2x + c
The line passes through the point (-2, 2), so we can write -
2 = -2 x -2 + c
2 = 4 + c
c = -2
So, we can write the equation of line as -
y = - 2x - 2
or
y + 2x = - 2
Therefore, the equation of the line in standard form with integer coefficients is → y + 2x = - 2.
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Prove that:
( sec 4A - 1 ) / ( sec 2A - 1 )
=
tan 4A . cot A
Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help Pls Help
Answer:
sec 1A = tan 2A
Step-by-step explanation:
BABAOEY
Which inequality represents this situation?
Players must practice at least 45 minutes a day.
t 45
t ≥ 45
Answer:
t≥45
Step-by-step explanation:
If it says at least, it means fine must be greater than or equal to 45.
what number can be added to 55 and have 45 and 9 as thier greatest common factor?
Answer:
36
Step-by-step explanation:
BRAINLIST!!!!! Do you know the sample response?!
Answer:
The graph and equation both match and are a function. there is one specific output fro each input
Step-by-step explanation:
Question 10 of 10
Solve 3 ax + 4ax = 5ax + 4 for x. Assume at 0.
A. X = 2
a
B. x= 2a
C. x =
За
D. X = 3a
[tex]x = \frac{2}{a} [/tex]
Step-by-step explanation:
3 ax + 4ax = 5ax + 4, combine like terms
7ax = 5ax + 4, minus 5ax from both sides
2ax = 4, divide 2a on both sides
you'll be left with x = 2/a
how do I solve for x?
Answer:
85
Step-by-step explanation:
The sum of the measures of the interior angles of a triangle is 180 deg.
x + 52 + 43 = 180
x + 95 = 180
x = 85
Answer: 85
The angles in a triangle add up to 180 degrees
180 - 52 - 43 = 85
x = 85 degrees
what is the squared root of 64?
Answer:
8
Step-by-step explanation:
Answer:
the square root is 8
Step-by-step explanation:
Helpppp I’ll mark brainliest
HELPPPP!!!
The LCM of 50, 120, and 225 is 5.
True or False
False, the LCM of 50, 120 and 225 is 1800.
5 is the GCF of 50 120 and 225, not the LCM.
Hope it helps!
Answer:
The answer is False
Step-by-step explanation:
5 is the smallest number that can fit into all 3 numbers.
7/8 of Bill's coins are. pennies.
What % are pennies?
Answer:
87.5% are pennies
Step-by-step explanation:
7/8 = 87.5%
Hope this helps!!
7a-3(2a-4) what’s the answer?
Answer:
?
Step-by-step explanation:
Answer:
a+12
Step-by-step explanation:
Distribute the -3 to (2a-4) so you get -6a+12
then it is 7a-6a+12, which is a+12.
If you need an actual number then a+12=0 is a=-12, if you just needed to simplify it, then a+12
Help me solve this problem please
Refer to the graph. Find the slope of each line
Answer:
The top line has a slope of 1/2
The bottom line has a slope of - 1/4
You are going down the river at 2mph but your canoe loses a wheel. at this rate, how many boxes of pancake mix will it take to re-shingle your roof.
Answer:
The temperature of the sun is -498 K / meters square
Hope that helps!
Answer:
Um... Is this the real question or you just trolling???
Step-by-step explanation:
help will give crown only REAL ANSWERS COMMENT IF YOU HAVE A QUESTION
Answer:
A
Step-by-step explanation:
In that example the plane is going up constantly whereas in example B the plane in going down, in example C the plane it going up but the stops and goes at the same speed, and in D the plane it once again going down.
75 is what percent of 150?
If you show work you will be marked brainliest
50%
You need to convert the fraction (ratio)
Afterwards, you will get your answer!
I don't know how to upload or I would upload a picture of my work and how to do it to help you.
I hope this helps you!
Answer:
50percent
Step-by-step explanation:
75 is half of 150