Answer:
x = 4 and y = −1
(4, -1)
Step-by-step explanation:
I going to solve this system of equations by elimination. (You could also solve by substitution too.)
Multiply the first equation by 1, and multiply the second equation by -2.
1(−2x+9y= -17)
-2(-x - 3y = -1)
Becomes:
−2x + 9y = −17
2x + 6y = 2
Add these equations to eliminate x:
15y = −15
15y/15 = -15/15
y = -1
Now we solve for x:
-x -3(-1) = -1
-x + 3 = -1
-3 -3
-x = -4
x = 4
Hope this helped!
A car wash attendant counted the number of cars washed and the total amount of money earned. The
company charged the same price for each car washed and earned $165 for 15 cars, $231 for 21 cars, and $275
for 25 cars. Write an equation for the relationship between the number of cars washed, n, and the number of
dollars earned, m.
Answer:
total=n÷m $165÷15,$231÷21 and $275÷25
Which three lengths could be the lengths
of the sides of a triangle?
A. 4 cm, 8 cm, 13 cm
B. 13 cm, 11 cm, 23 cm
C. 5 cm, 18 cm, 12 cm
D. 25 cm, 8 cm, 16 cm
Given:
The three lengths in the options.
To find:
Which three lengths could be the lengths of the sides of a triangle?
Solution:
If the sum of two smaller sides is greater than the largest side, then the three sides can form a triangle otherwise the triangle is not possible.
In option A, the three sides are 4 cm, 8 cm, 13 cm. Here, the largest side is 13 cm.
Sum of two smaller sides is:
[tex]4+8=12[/tex]
[tex]4+8<13[/tex]
So, the triangle is not possible.
In option B, the three sides are 13 cm, 11 cm, 23 cm. Here, the largest side is 23 cm.
Sum of two smaller sides is:
[tex]13+11=24[/tex]
[tex]13+11>23[/tex]
So, the triangle is possible.
In option C, the three sides are 5 cm, 18 cm, 12 cm. Here, the largest side is 18 cm.
Sum of two smaller sides is:
[tex]5+12=17[/tex]
[tex]5+12<18[/tex]
So, the triangle is not possible.
In option D, the three sides are 25 cm, 8 cm, 16 cm. Here, the largest side is 25 cm.
Sum of two smaller sides is:
[tex]8+16=24[/tex]
[tex]8+16<25[/tex]
So, the triangle is not possible.
Therefore, the correct option is B. The three lengths 13 cm, 11 cm, 23 cm could be the lengths of the sides of a triangle.
What is the equation of the line that passes through the point (4,-4) and has a
slope of -5/2
Answer:
y = -5/2x + 6
Step-by-step explanation:
y = -5/2x + b
-4 = -5/2(4) + b
-4 = -10 + b
6 = b
y = -5/2x + 6
Plzzz put the work step by step so I can copy
Answer:
down below
Step-by-step explanation:
inside of a triangle is 180 degrees
[tex]180=90+5x+2+4x-11\\180=5x+4x+90+2-11\\180=9x+81\\180-81=9x+81-81\\99=9x\\99/9=9x/9\\11=x[/tex]
now that we have our x we can find the angles
[tex]M=90\\\\K=5(11)+2\\K=57\\\\\\L=4(11)-11\\L=33[/tex]
3. If x and y vary directly, and x = 60 when y = 5, what is the value of у when x = 36 ?
Answer:
y = 3
Step-by-step explanation:
Use the direct variation equation, y = kx
Plug in 60 as x and 5 as y, and solve for k
y = kx
5 = k(60)
1/12 = k
So, the equation is y = 1/12x
Plug in 36 as x and solve for y
y = 1/12x
y = 1/12(36)
y = 3
So, when x = 36, y = 3
Find the perimeter and total area of the composite shape shown below. All measurements are given in inches. Use pi=3.14 in any formulas used.
Answer:
Perimeter of the entire shape is 114.24
Step-by-step explanation:
Use pi x diameter of the semicircle divided by 2 + the diameter to find the perimeter of one semicircle. There are 4 semi circles so you multiply this by 4. Then you take the perimeter of the inside 8x4 = 32. Add them all together to get 114.24
Answer:
Perimeter of the entire shape is 114.24
Step-by-step explanation:
Use pi x diameter of the semicircle divided by 2 + the diameter to find the perimeter of one semicircle. There are 4 semi-circles so you multiply this by 4. Then you take the perimeter of the inside 8x4 = 32. Add them all together to get 114.24
If a system of linear equations has an infinite number of solutions, what do you know about the graph of the system?
А. The lines intersect at one point.
В. The lines are parallel
C. The lines are the same line.
D. The lines cannot be graphed.
At a football stadium, 10% of the fans in attendance were teenagers. If there were 100 teenagers at the football stadium, what was the total number of people at the stadium?
Answer:
The answer is 1000.
*Explanation*
Attendance at the football stadium is 100%
100% - 10% = 90%
10% = 100 attendance
900% = 900 attendance
900 + 100 = 1000 attendance
Find the range & interquartile range of the data set represented by this box plot.
Answer:
60 and 25
Step-by-step explanation:
The range is the difference between the maximum value and the minimum value.
maximum value = 125, minimum value = 65
range = 125 - 65 = 60
------------------------------------------
The interquartile range is the difference between the upper quartile Q₃ and the lower quartile Q₁
Q₃ is the value at the right side of the box = 115
Q₁ is the value at the left side of the box = 90
interquartile range = 115 - 90 = 25
hey can you help me fast!!
Answer:3.5 Hope this helps
Step-by-step explanation:
Answer:
-3.5
Step-by-step explanation:
I got it correct.
PLEASE HELP ME ANSWER THIS:(
Answer:
#1y = x² - 8x - 20 y = (x - 10)(x + 2), zero's are (10, 0) and (- 2, 0)Vertex is:
x = -8/-2 = 4, y = 4² - 8*4 - 20 = -36Correct choice is A
#2x² + 1/3x = 4x² + 2*x*(1/6) + (1/6)² = 4 + 1/36(x + 1/6)² = 4 1/36Correct choice is A
#3(-√-1) = -ii² = -1 ⇒ i²ⁿ = -1i²ⁿ⁺¹ = -iCorrect choice A or B
What is a 1/15 cup in cooking??
Answer: 1/5 cup with 2 tps
Step-by-step explanation:
4
In the following figure, the value of x is
20
35°
C
B
Note: Round your answer to the nearest tenth.
I will mark brainliest
Answer:
4.89
Please mark brainliest
9. Which activity would best result
in a scholarship award ?
What two words will fill in the blanks correctly?Single choice.
(1 Point)
In similar figures, the ratio of the lengths of their corresponding sides are ____________ and corresponding angles are ____________.
equal and congruent
similar and similar
similar and congruent
here's the answer :
=》
In similar figures, the ratio of the lengths of their corresponding sides are equal and corresponding angles are congruent.
hence, A. equal and congruent is correct.
Answer:
equal and congruent
Step-by-step explanation:
equal and congruent
In a bag, there are 6 blue, 1 purple, 3 yellow, and 5 orange marbles. If a single choice is made from the
bag, find the probability of choosing a yellow marble
Answer:
it would be a 3/15 or 1/5 chance
Step-by-step explanation:
Answer:
Its 3/15 which is 1/5. The percentages are 20%.
Step-by-step explanation:6+1+3+5=15
yellow marbles:3/15
Simplified version:1/5.
And the percentages is 20%
mr jones is painting a wall in his office. he has enough paint to cover 104 square feet . the wall he is painting is 12 feet wide and 9 feet long. Does he have enough paint to cover the wall
Answer:
no
Step-by-step explanation:
9x12=108
108 square feet so not enough paint.
needs more paint that covers 4 square feet
helpppppppppppppppppppp
Answer:
10
Step-by-step explanation:
The pattern is multiplication by 2,
5x2 is 10
10x2 is 20,
and so on
Answer:
your answer is 10
Step-by-step explanation:
5 ,10 ,20 ,40 ,80
What is the total number of unique triangles with side lengths of 6.5 centimeters, 6 centimeters, and 2.5 centimeters?\
Answer:
Total 9 unique triangles can be formed
Step-by-step explanation:
For triangles to be unique, length of one side can be arranged in 3 different ways
Let us L1, L2 and L3 are the three sides
Now, length of 6.5 cm can be at maximum three positions i.e L1, L2 and L3
Like wise length of 6.0 cm can be at maximum three positions i.e L1, L2 and L3
and length of 2.5 cm can be at maximum three positions i.e L1, L2 and L3
Hence, total ways of making unique triangles are
3 + 3+ 3= 9
can someone plz help me.
Answer:7 hours
Step-by-step explanation:
I really need help on this please
Answer:
2 inches
Step-by-step explanation:
i think that this would be monday*3 + thursday*2 in order to find all five days
so (0.5*3)+(0.25*2)= 2inches.
hope this helps!
DUE NOW!!! HELP IF U CAN
Dylan and his friend Lamar volunteered to bring sandwiches for lunch at a homeless shelter. They bought 8 loaves of bread. Each loaf had 16 slices of bread. The boys used up all the bread to make the sandwiches. They used 2 slices to make each sandwich. How many sandwiches did they make for the shelter?
Thanks For answering!
Answer:
64 slices
Step-by-step explanation:
The first step to solving this is to find out how many slices of bread there were in total. We know that each loaf of bread had 16 slices, and we know that there were 8 loaves. To get the amount of slices, we multiply the amount of slices in each loaf by the number of loaves there are.
16⋅8=128 slices of bread in total
Now that we know the total number of slices, we need to find how many sandwiches they made. If they used two slices per sandwich, we would divided the total number of bread slices by two.
128÷2=64.
Is water wet?? Explain
Answer:
WATER IS not wet
Step-by-step explanation:
Water is NOT wet by itself, however it makes other materials wet when it sticks to the surface of them.
Answer:
Water isn't wet by itself, but it makes other materials wet when it sticks to the surface of them. Wetness is the ability of a liquid to adhere to the surface of a solid, so when we say that something is wet, we mean that the liquid is sticking to the surface of a material.
20 POINTS
The triangles are similar. Give the ratio of the perimeters and the ratio of the areas of the first figure to the second. The figures are not drawn to scale.
Answer:
B or C
Step-by-step explanation:
Now this one is very very confusing for me but i'm leaning more to B, if someone else gets a different answer though i would listen to them, but it's one of those two but i think its B.
10 points. . .. this is for my brother they have changed stuff so much from when i was in 6th
Answer: 1.885 miles
Step-by-step explanation:
Given: One lap around a park = 0.58 mile
The number of laps walked by Jessica= 3.25
Then, in miles , the distance walked around the park by Jessica will be (Multiply the number of laps to the value of one lap in miles) :
Hence, Jessica walked 1.885 miles around the park.
Answer:
im a dad, and i have the best woman in the world, best wife and mother to are boy
Step-by-step explanation:
x−60=180 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
x=240
Step-by-step explanation:
x-60=180
add 60 to both sides
x=240
Answer:
x = 240
Step-by-step explanation:
180 + 60 = x
180 + 60 = 240
the area of the triangle is 24 square feet. what is the length of the base?
A) 8 feet
B) 16 feet
C) 21 feet
D) 36 feet
Answer:
16 feet
Step-by-step explanation:
Area of a Triangle: (Base*Height)/2.
Therefore, Base:(2A)/Height =(2*24)/2=16
These box plots show the daily high temperatures in two cities over a
two-week period. Express the difference between the median temperatures
as a multiple of the IQR for each city. Show your work.
London
Honolulu
60
50 52 54 56 58
High Temperature (°F)
4
80 82 84 86
High Temperature (°F)
sorry i don't know. this answer.