Answers
Step-by-step explanation:
.....hope it helps
.......thnx
Solve the system of equations using the substitution method. Show all works
y = 5x - 7- 3x - 2y = - 12⠀ ⠀⠀
Answer :[tex] \large \underline{\boxed{\bf{x = 2}}}[/tex][tex] \large \underline{\boxed{\bf{y = 3}}}[/tex]⠀ ⠀⠀
Explanation :⠀ ⠀⠀
Given :y = 5x - 7⠀ ⠀⠀ ⠀ ⠀⠀ - (i)- 3x - 2y = - 12⠀ ⠀⠀ ⠀- (ii)⠀ ⠀⠀
From equation (i), we have :
[tex] \tt : \implies y = 5x - 7[/tex]
⠀ ⠀⠀
By Substituting y = 5x - 7 in equation (ii), we get :
[tex] \tt : \implies - 3x - 2(5x - 7) = - 12[/tex]
[tex] \tt : \implies - 3x - 10x + 14 = - 12[/tex]
[tex] \tt : \implies - 13x = - 12 - 14[/tex]
[tex] \tt : \implies - 13x = - 26[/tex]
[tex] \tt : \implies 13x = 26[/tex]
[tex] \tt : \implies x = \dfrac{26}{13}[/tex]
[tex] \tt : \implies x = 2[/tex]
[tex] \large \underline{\boxed{\bf{x = 2}}}[/tex]
⠀ ⠀⠀
Now, By substituting x = 2 in equation (i), we get :
[tex] \tt : \implies y = 5(2) - 7[/tex]
[tex] \tt : \implies y = 10 - 7[/tex]
[tex] \tt : \implies y = 3[/tex]
[tex] \large \underline{\boxed{\bf{y = 3}}}[/tex]
⠀ ⠀⠀
Hence, solution of given system of equations are :
[tex] \large \underline{\boxed{\bf{x = 2}}}[/tex][tex] \large \underline{\boxed{\bf{y = 3}}}[/tex]Related Questions
pls help me with #9 :)
Answers
Answer:
94°
Step-by-step explanation:
it is a similar triangle and corresponding angles of similar triangles are equal. and interior angles of triangles always equal to 180°
Answer:
A- 94
Step-by-step explanation:
p= 32
k= 54
m= 180 - (32+54) = 94
angle m ~ angle j
Angle j = 94
I hope im right!!
v list of answers
4in
8in
32in
16in
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好吧，我不會說英語，但會說普通話，如果我不知道那會是8
Let b= 7.
3b+-4
Please help
Answers
3(7)+-4
21+-4
=17
Hope this helps have a nice day! ;$
Answer:
b=40/63
Step-by-step explanation:
b= 7. 3b+-4
multiply both sides by 10
b*10=7.3b*10-4*10
refine
b*10=7.3b-40
subtract 7.3b from both sides
b*10-7.3b=7.3b-40-7.3b
simplify
-63b=-40
divide both sides by -63
-63b/-63=-40/-63
simplify
b=40/63
sorry for the lengthy explanation
hope this helps :) have a nice day !! (please let me know if this was wrong)
Use the FOIL method to check your answer from part A.
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Inner = -5x
Outer = +8x
Last = -40
It is correct!
is anyone able to help me with this?
Answers
Step By Step Explanation- Find the Area to the Triangle, After you find the answer to that, Find the area to the square then subtract the Square by the triangle and you get your answer!
Answer:
Step-by-step explanation:
Use the area formulas to help.
Area of a triangle = 1/2bh
Area of a rectangle = lw
Area of the triangle:
6*5 =30 yds
30*0.5= 15 yds
Area of the rectangle:
7*12=84 yds
Area of the shaded region:
84-15=69 yds
i needd helppp asap
Answers
Answer:
70, 110, 110, 70
Step-by-step explanation:
top left- 70, top right-110, bottom left-110, bottom right-70
The measure of angle t is 60 degrees. What is the x-coordinate of the point where the terminal side intersects the unit circle?
Answers
3kg of apples and 8kg of grapes costs €7.60 in total 5kg of apples and 3kg of grapes costs €7.50in total work out the costs of a kg of each type of fruit
Answers
Answer:
1kg of apple : €0.50
1kgof grapes : €1.20
Step-by-step explanation:
15kg of apples and 40kg of grapes costs €38
15kg of apples and 9kg of grapes costs €22.50
38 - 22.50 = 15.5
40 - 9 = 31
15.5 ÷ 31 = 0.5 ( 1kg of grapes )
0.5 × 3 = 1.5
7.5 - 1.5 = 6
6 ÷ 5 = 1.2 ( 1kg of apples )
is the discriminant of f positive , zero , or negative
Answers
Answer:
Negative because there's no x-intercepts!
Hope this helps!
Which equation matches the graph? points. (-5,1) (0,-3)
a. y= -4/5x-3
b. y= -5/4x-3
c. y=-4/5x+3
d. y= -5/4x+3
Answers
Answer:
-4/5x-3
Step-by-step explanation:
We can eliminate the options C and D as they have a +3 which means they would start at (0,3).
y=-4/5x-3
y=-4/5(-5)-3
y=4-3
y=1
same thing from last question
1=-4/5x-3
+3 to both sides
4=-4/5x
*5/4 to get 1x
5=-x
*-1 to get positive x
-5=x
which proves my answer as correct
HELP QUICK! Can someone please explain this and show your work please!
Answers
Answer:
x > -2
Step-by-step explanation:
[tex]-\frac{x}{2} + \frac{3}{2} < \frac{5}{2} \\-\frac{x}{2} < \frac{2}{2} \\-\frac{x}{2} < 1\\-x < 2\\-\frac{x}{-1} < \frac{2}{-1} \\x > -2[/tex]
See picture of graphed number line below:
The given point 1, -3 reflected over the x axis
Answers
Answer:
(1,3)
Step-by-step explanation:
The image of (1, -3) is (1, 3).
What is a reflection?There are two ways of reflection.
Along x-axis:
(x, y) – (x, -y)
Along y-axis:
(x, y) - (-x, y)
We have,
Point = (1. -3)
Reflected over the x-axis.
So,
(1, -3) = (1, -(-3)) = (1, 3)
Thus,
(1, 3) is the reflected image.
Learn more about reflections here:
https://brainly.com/question/12463306
#SPJ2
help 6x+6y=-6
x=-5y-13
Answers
Answer:
what do you need help on?
Step-by-step explanation:
K - 5 = 12. Solve the equation
Answers
Answer:
17 = K
Step-by-step explanation:
Add 5 to both sides to get K = 17
NEED HELP PLEASE ONLY GOT 20 min
Answers
Step-by-step explanation:
i need the question
for the excellent
answer
There is a box of chocolates and one person easts one-fourth of the pieces and another person eats one-half
of the remaining pieces. If there are now six pieces left, then how many pieces were originally in the box?
Answers
Answer:
16 - Original number of chocolates in the box.
Step-by-step explanation:
C = 6 / (3/8) =6 x (8/3) =48 / 3 = 16
WILL GIVE BRAINLIEST please help
Answers
Answer:
First bullet point
Step-by-step explanation:
Answer: The first option (A)
Step-by-step explanation:
i did the math just plug in the numbers for x.
hope this helps pls mark me brainliest
1/5+2/5 what’s the answer?
Answers
Answer:
3/5
Step-by-step explanation:
First: you rewrite 5 then you sum up 1+2
If you spin the spinner 75 times how many 2s would you get?
Answers
Answer:
If the numbers went from 1-5 then maybe 15 at least I think or more. I don't know it is a prediction.
Step-by-step explanation:
can someone help me im stuck
Answers
Answer:
(3). 500; (4) 60
Step-by-step explanation:
Solve for x 1/2x = 3/4
Answers
Answer:
5
Step-by-step explanation:
Nancy had 6 feet of ribbon she will use to make gift wrapping bows. She needs 1/3 of a foot to make a gift wrapping bow. How many gift wrapping bows can Nancy make? 9 bows 12 bows 18 bows 24 bows
Answers
Answer: WHATS THE ANSWER???!?!
Step-by-step explanation:
Answer:
thanks for the free points. btw it is 18
Step-by-step explanation:
In 1992 a gigabyte cost $3000. In 2012 the gigabyte price decreased by 97%. What was the cost of a gigabyte in 2012
Answers
5692 in standard form
Answers
Answer:
5.692 × 103.
Step-by-step explanation:
Answer:
5.692 × 10^3
Step-by-step explanation:
hope it helps you
which type of dilation are the given scale factor scale factor negative 5/4 3/8 -1.2 0.5 expansion or contraction
Answers
Answer:
It's expansion.
Step-by-step explanation:
Answer:
Scale factor of k results in expansion if:
| k | > 1and the contraction if:
| k | < 1Given values:
-5/4 ⇒ expansion3/8 ⇒ contraction-1.2 ⇒ expansion0.5 ⇒ contraction3x = 21 What is the value of x?
Answers
devide each side by 3
3x = 21
----- ----
3. َ ّ ُّ. 3
x = 7
Match each percent amount to its correct value.
Answers
Answer:
13 = 30% of 45
4.5 = 15% of 30
4.6 = 23% of 20
4.2 = 60% of 7
Can I get some help here please?
Answers
Answer:
The answer is C.
Step-by-step explanation:
As you can see, the line clearly intercepts at the line 0,4.
I really hope this helps!!! Please mark me brainliest!
Use the GCF to factor the expression 40x+24y-56.
Answers
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Step-by-step explanation:
Help I will give brainlist and 30 points
Answers
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