Solve the system of linear equations by elimination.
9x+y=2
−4x−y=−17
Answer: x = -3 y = 29
Step-by-step explanation:
9x + y = 2
-4x - y = -17
5x = -15
Divide both sides by 5
x = -3
9x + y = 2
Substitute -3 for x
9 (-3) + y = 2
-27 + y = 2
Add 27 to both sides
y = 29
Hope I helped!
can someone help pls 10 points
Answer: it should be 3/4
Step-by-step explanation:
Of the following points, name all that lie on the same vertical line?
(-2,6) (6,2) (-2,-6) (-6,2)
Answer:
(-2,-6) (6,2)
Step-by-step explanation:
Help! Please and thank you
Answer:
Second Choice.
Step-by-step explanation:
The shifting of graph depends on value of b.
[tex]y = mx + b[/tex]
If b > 0, the graph shifts up.
If b = 0, the graph passes origin point.
If b < 0, the graph shifts down.
The only thing that's matter if the graph shifts up or down is about if the value of b is in negative or positive.
Factor 15x + 35 using the GCF.
A. 5(3x + 7) B. 5(3x + 35) C. 15(x + 2) D. 7(2x + 5)
MARKING BRAINLIST!
A 30-mile segment of road needs to be paved. 6 miles have already been completed. The paving crew can complete 3 miles of paving per day. How many days will it take them to finish?
Answer: 8 days
Step-by-step explanation:
6 miles has been paved already.
Number of miles left = 30 - 6
= 24 miles
If they are paving at 3 miles a day, the days they will take to finish is:
= 24/3
= 8 days
Answer:
8 days
because if they are paving at 3 miles a day, the days they will take to finish is: = 24/3
Find angle x and y. Please show step by step process.
Answer:
x = 60, y = 25
Step-by-step explanation:
Δ ABC has 3 congruent sides and is equiangular, thus
the 3 angles are congruent, all 60°
x = 60
∠ ABC and ∠ CBD are adjacent and supplementary, sum to 180° , then
∠ CBD = 180° - 60° = 120°, so
y = 180 - (120 + 35) = 180 - 155 ← sum of angles in triangle
y = 25
Please Help Me!!! √36/169 = ?
Answer:
Step-by-step explanation:
0.03550295857
Coach S wants to tie a ribbon around the trunk of an oak tree that has a circular trunk about 28 inches in diameter. Not counting the ribbon needed to make a bow, about how many inches of ribbon are needed to just reach around the tree?
Answer:
87.92 or 88 inches(simplified)
Step-by-step explanation:
circumference = 2 Pi R R= 1/2 diamater
ribbon = circumference
ribbon = 2x3.14x14 = 87.92 inches
A car travels 174 miles in 3 hours. At this rate, how many miles will the car travel in 12 hour?
A. 348 miles
B. 87 miles
C. 58 miles
D. 29 miles
Answer: C. 58 miles
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
I know I'm smart
sike I'm autistic
solve by elimination
3x+2y=17
x+2y=5
Answer:
x = - 3 and y = − 4
Step-by-step expla
7:x=2:3
Solve the equation
Answer:
10.5 =x
Step-by-step explanation:
We can rewrite this as a ratio
7 2
---- = ------
x 3
Using cross products
7*3 = 2x
Divide each side by 2
21 /2 = 2x/2
10.5 =x
Trisha has $100 to spend on presents for 4 friends. She wants to spend the same amount on each friend. Write and solve an inequality to determine how much can she spend on each friend?
Answer:
4x<=100
Step-by-step explanation:
she has 4 friends to spend the 100 dollars on because she wants to spend the same amount on each friend you can multiply 4x. you can't spend more than 100 but you can spend 100$ so it would be <=100
HELPPPPPPP PLS! 9th Grade Math
Step-by-step explanation:
i forgot this im in college XD
(5x-3)(6+x)=0
Hi I can't solve this could someone pls help me? ill give brainliest
Answer:
I think answer is 6X-18=0.
Step-by-step explanation:
(5X-3) (6+X)=05X-3*6+X=05X+X-3*6=06X-18=0Answer:
Either, x=3/5 or, x=-6
Step-by-step explanation:
(5x-3)(6+x)=0
Either,
5x-3=0
5x=3
x=3/5
Or,
6+x=0
x=-6
Needz helllllpppppsss plzzzzzzzzzzzz
Will give brainliest if you are correct
Easy. Please Answer!
I’ll mark Brainly!!!
Answer:
576π
Step-by-step explanation:
π6²=36π
36π*48=1728π
4/3π6³=288π
288π*4=1152π
1728-1152=576π
What is 13 more than 5 groups of 8?
Answer:
53
Step-by-step explanation:
5 groups of 8= 40
13 more than that is 53
Please write a Equation for the Line.
Step-by-step explanation:
Hey there!
The given points are; (1,-3) and (3,1).
Note: Use double point formula.
[tex](y - y1) = \frac{y2 - y1}{x2 - x1} (x - x1)[/tex]
~ Put all values.
[tex](y + 3) = \frac{ - 1 - 3}{3 - 1} (x - 1)[/tex]
~ Simplify it.
[tex]y + 3 = - 2x + 2[/tex]
[tex]2x + y + 1 = 0[/tex]
Therefore, the eqaution is; 2x+y+1= 0.
Hope it helps....
Leah is going to wrap the first box with wrapping paper. She measures the bottom of her box exactly to help her determine how much wrapping paper to use. The area of the bottom of the box is 36 1/8 square inches. Its width is 8 1/2 inches. What is the length of the bottom of the box?
Answer:
4.25 is the answer or 4 1/4
Step-by-step explanation:
the width 8 1/2 inches and the area is 36 1/8. therefore we have to do 36 1/8 divided by 8 1/2 to get 4 1/4 as the side length
A rectangular prism has a length of 16in, a height of 15in, and a width of bin. What is
its volume, in cubic in?
Answer:
volume = 240b in³
Step-by-step explanation:
Width is b in
Volume = length * height * width
then:
volume = 16in * 15in * bin
volume = 240b in³
what is the mode of the set numbers?: 8, 9, 2, 12, 12, 10, 14, 14, 5
Good morning can y’all help me
Answer:
1/5
Step-by-step explanation:
opposite of 5x5 is 5 divided by 5
Write a unite rate that compares the quantities described 48 cookies for 3 children
Answer:
48/3
Step-by-step explanation:
If (3a + 3b + 1) (3a + 3b - 1) = 80, then what is a + b?
Answer: a + b = 3 - maybe
Step-by-step explanation:
( 3a + 3b + 1 )( 3a + 3b - 1 ) = 80
Expand
9a² + 9ab - 3a + 9ab + 9b² - 3b + 3a + 3b - 1 = 80
Simplify
9a² + 9b² + 18ab - 1 = 80
move the 1 over
9a² + 9b² + 18ab = 81
divide by 9
a² + b² + 2ab = 9
not really sure after this part
move the 2ab over
a² + b² = 9 - 2ab
square root both sides
a + b =
simplify
a + b = 3 -
Perla drives 25 miles south and then drives east. After arriving at her destination, it is determined that she is 60 miles (diagonally) from where she started. How far east did she drive?
(Pythagorean Theorem-Unknown Leg
Answer:
54.54
Step-by-step explanation:
Why do the roots of a quadratic equation have the opposite sign of the factors of a quadratic equation
Answer:
To find the roots of the quadratic equation we set the factors of the quadratic equation equal to 0.
Step-by-step explanation:
Consider the provided information.
Roots of the equation is x-intercepts or zeros of the given equation.
So, By definition, the value of The y-coordinate is zero for points situated on the x-axis.
Thus, we can find the roots of a quadratic function, by putting f (x) = 0.
Now, let (x-a)(x-b) is the factor of any quadratic equation.
To find the roots of the quadratic function we will put our factor equal to 0.
[tex](x-a)(x-b)=0[/tex]
Now by the zero product property either x-a=0 or x-b=0
[tex]x-a=0[/tex] then [tex]x=a[/tex]
or
[tex]x-b=0[/tex] then [tex]x=b[/tex]
So, we can say that to find the roots of the quadratic equation we set the factors of the quadratic equation equal to 0.
The shoe store bought a pair of shoes for from the wholesaler for $45, and then marked them up 80%.
How much $ did the shoes get marked up by?
how much did the shoe company charge for the shoes?
Answer:
$81
Step-by-step explanation:
You need to divide 45 by 10 to get 10% of 45. 10% of 45= 4.5. Then, multiply 4.5 by 8 to get 80% of 45. Then, add 36 to 45 to get 81 dollars final price.
 Can someone pleaseeee help if you’re correct I’ll give u brainlist
Answer: You're lucky I helped you(◔_◔)
Step-by-step explanation:
JK = KD = l
JD = l√2
l√2 = JD
l√2 = 8√2
Divide both sides by √2
l = 8
JK = 8m
KD = 8m