Answer:
(6, - [tex]\frac{1}{2}[/tex] )
Step-by-step explanation:
Given the 2 equations
3x - 4y = 20 → (1)
4x - 2y = 25 → (2)
Multiplying (2) by - 2 and adding to (1) eliminates the y- term
- 8x + 4y = - 50 → (3)
Add (1) and (3) term by term to eliminate y
- 5x = - 30 ( divide both sides by - 5 )
x = 6
Substitute x = 6 into either of the 2 equations and evaluate for y
Substituting into (1)
3(6) - 4y = 20
18 - 4y = 20 ( subtract 18 from both sides )
- 4y = 2 ( divide both sides by - 4 )
y = [tex]\frac{2}{-4}[/tex] = - [tex]\frac{1}{2}[/tex]
Solution is (6, - [tex]\frac{1}{2}[/tex] )
The solution of the linear equations 3x - 4y = 20 and 4x - 2y = 25 will be (6, -0.50).
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The linear equations are given below.
3x - 4y = 20 ...1
4x - 2y = 25
8x - 4y = 50 ...2
Subtract equation 1 from equation 1, then we have
8x - 4y - 3x + 4y = 50 - 20
5x = 30
x = 6
The value of the variable 'y' will be given as,
3(6) - 4y = 20
18 - 4y = 20
4y = - 2
y = - 0.50
The solution of the linear equations 3x - 4y = 20 and 4x - 2y = 25 will be (6, -0.50).
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
A barge is carrying 342,000 pounds of concrete blocks. How much weight is this in tons?
171 ask google if u think im wrong
171 tons.
Find the next three numbers in the pattern.
7, 11, 15, 19, 23,27
Answer: 31, 35, 39
Step-by-step explanation:
Answer:
Just add 4 to each number and do it how ever long it says
Step-by-step explanation:
there you go now may I ask you when you are curious about a certain happening like what breakfast that's give you more energy or what is the fastest route from your house to school what will you do?
Answer:
Idk. I will probably find a faster route to school and research abt which foods give u more energy...... IDK
Step-by-step explanation:
A pizza restaurant charges $10.00 for 1 pizza, $20.00 for 2 pizzas, and $28.00 for 3 pizzas. Based on this information, how much will the restaurant charge for 4 pizzas?
Answer: $36.00
For every extra pizza, it will cost eight dollars more. So, the fourth pizza will cost $36.00.
Plz mark brainliest:)
The water level in a bathtub is directly proportional to the time that the water has been running. If the water level is 4 inches after 5 minutes, what is the water level after 9 minutes? O A. 10 inches O B. 7.2 inches O C. 8 inches OD. 11.25 inches
Answer:
i think its 8
Step-by-step explanation:
becuse 4/5 its equal to 8/9 so thats why.
denada✌
ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS
Identify the property.
18 + 11 = 11 + 18
Answer:
commutative i believe
Step-by-step explanation:
.........................
Answer:
Commutative Property
Step-by-step explanation:
The commutative property: Changing place of a certain number does not affect the sum (answer)
In this problem the property is Commutative property
PLEASE HELP LOTS OF POINTS I HAVE MADE THIS TWO TIMES GOT THE OTHER ONE TO GET 27 POINTS!
The sequence that proves shape I is similar to shape II when applied to shape I is a reflection across the x or y axes
, followed by a translation 4,5,6 or 7
units right and 2,3,4 or 5
units down, and then a dilation by a scale factor of 0.5 or 1 or 1.5 or 2
.
Answer:
-4 an -3 11 4 9
Step-by-step explanation:
Answer:
1) reflection across the x-axis
2) 7 units right
3) 2 units down
4) dilation by a scale factor of 2
Step-by-step explanation:
please need help by october 31, 2020 help!!!!!!
Answer:
1.)c=±√58
Step-by-step explanation:
According to Pythagorean theorem, square of the hypotenuse is equal to the sum of the squares of other two sides
a^2+b^2=c^2
Short sides-a and b
Long side=c
I will do number 1 for you as an example.
A=3
B=7
C=x
3^2+7^2=c^2
58=c^2
Dont forget to square 58
c=±√58
Isabel began training for a marathon by running 63 miles during her first week. Each week, she increased the distance she ran by 10% of the previous week's distance.
Which function represents the number of miles she ran during the nth week?
Answer:
10% of 63 is 6.3 so 63+6.3=69.3
Step-by-step explanation:
Please help i'll give brainliest
Answer:
[tex]option \: 1. \: is \: correct.[/tex]
Step-by-step explanation:
[tex]9 {}^{ \frac{1}{3} } = \sqrt[3]{9 {}^{1} } \\ but \: for \: 9 {}^{ \frac{1}{3} } \: to \: equal \: 9 \: \\ then \: it \: should \: be : {(9 {}^{ \frac{1}{3} } )}^{3} \\ therefore \: the \: option \: 1. \: is \: correct.[/tex]
Chaney is spending the day by selling candy bars for $5 a piece . He spent $13 on supplies. He ended the day with $32, how many candy bars did he sell?
a correction of "six less than twice the value of x" is
Answer:
2x-6
I don't know what you mean by correction, but that's in expression form.
Answer:
2x-6
Hope this helps!!
For Cooper's lemonade recipe, 6 lemons are required to make 3 cups of lemonade. At
what rate are lemons being used in lemons per cup of lemonade?
Answer:
2 lemons per cup
Step-by-step explanation
If you have 6 lemons and you can make 3 cups you will need to divide
6/3 which is 2
so your answer is 2 lemons per cup
in 14 days there are 2,252 cans in 10 days there are 1,630 days how many cans are in 4 days
Answer:
1630 days is that one of your answers?
Hope this helps
Step-by-step explanation:
What is the slope of the line shown below?
A. -2/3
B.-3/2
C. 3/2
D. 2/3
Answer:
-2/3
Step-by-step explanation:
Find the point-slope equation for the line
that passes through the points (30, 2) and
(15, -28). Use the first point in your
equation
y - [?
l(x - [
Answer:
y-30=2(x-2)
Step-by-step explanation:
m=y2-y1/x2-x1
-28-2=(-30)
15-30=(-15)
-30/(-15)=2
m=2
hope this helps =3
sorry if im wrong
What is the slope of a line perpendicular to the line whose equation is 2x+8y -64 Fully reduce your answer.
Answer: I am pretty sure it is y=-1/4x-8. Hope this helps!
Step-by-step explanation:subtract the 2x from both sides which gives you 8y=-2x-64. Then you want to divide both sides by 8 to get y=-1/4x-8
4 (x +3 ) = 24 need help!!!!
Answer:
X=0
Step-by-step explanation:
X=0 because 4(x+3) 4×3 is already 24
X^2+(2)b+(-35) then the factored form is?
Answer:
2b+2x-35
Step-by-step explanation:
let me know if wrong
if my dog eats about three fifths of a pound of dog food per day how long will a five pound bag of dog food last?
Answer:
8 and 1/3 day
Step-by-step explanation:
Just divide 5 by 3/5
Keep change flip.
5 x 5/3
25/3
It will last 25/3 days, or 8 and 1/3 days, or 8 days and 8 hours.
Hope this helps
is Gobbledygook a word
Answer:
Lol that is a word.
Find 2 points that are 3 units from Point C and also share the same y-coordinate as Point C.
P.S its NOT -3,-5 -9,-5
Answer:
I'm guessing point C is (-6,-5)? But then, it would have to be the coordinates you listed, (-3,-5) and (-9,-5) because nothing else makes sense.
Or is it one of those questions that you give your own coordinates? I'm confused :'(
Find the slope of the line.
[tex]The\;slope\;is\;-3.\\\\The\;slope\;is\;the\;x\;which\;is\;the\;line\;that\;goess\;horizontal.\;Therefore,\\\;the\;point\;is\;on\;the\;negative\;side\\\;and\;it\;is\;3\;boxes\;to\;the\;left\;so\;that\;means\;the\;slope\;is\;-3.[/tex]
amare runs 1/10 mile in 2/3 min what is his speed in miles per min
Answer: it takes amare 6 2/3 minutes
Step-by-step explanation:
1/10 take the denominater / 10
multiply 10 times 2/3 = 20/3
20/3 = 6 2/3
= it takes amare 6 2/3 minutes to run a mile
Answer:
Step-by-step explanation:
it will be 3/20
HELP! DUE TODAY! WILL GIVE BRAINLIEST!!
Question:
Select from the drop-down menus to correctly complete each statement
17.2 is 17.2 units to the ( drop-down 1 ) of zero on a number line. The opposite of 17.2 is 17.2 units to the ( drop-down 2 ) of zero on a number line.
Answer:
#1 would be Right and #2 would be left
Step-by-step explanation:
Pls Mark Brainliest
Monica ran 20 miles in two days. How many miles did she run each day, if she ran 4 more miles on the second day than on the first day?
miles, and on the second day she ran
miles.
Answer:6 miles
Step-by-step explanation:
Answer:
First Day: 8
Second Day: 12
OF COURSE CORRECT.
Find the length of the missing side. The triangle is not drawn to scale
Please add triangle image.
Answer:
i cant answer without a picture or something to see what the missing sides are..
comment the graph and i will answer the question
Step-by-step explanation:
One-fourth of a number is 22. Find the number
Answer:
5.5
I hope this helps!
Mark brainliest!
Can anyone help me answer this? It due in a few minutes
Answer:
A
D
Step-by-step explanation:
Answer:
●A. (4x + 16)° = 180°
○B. x° = 49°
○C. m<A = 99°
● D. From smallest to largest: <B, <C, <A
The answers are both A and D.