Answer:
(-1,3)
Step-by-step explanation:
so y=x+4 and y=-2x+1
obviously, y=y
so that means that x+4 is equal to -2x+1
let's use that
y=x+4,y=-2x+1
y=y
x+4=-2x+1
x+2x=1-4
3x=-3
x=-1
y=x+4
y=(-1)+4
y=3
(-1,3)
6TH GRADE MATH!
Which of these expressions are equivalent to p over 3?
Select each correct answer.
A. 3 divided by p
B. 1/3p +1/3p +1/3p
C. p-2/3p
D. 1/3p
E. p-3
F. 3p over 9
Please hurry, i only have 20 minutes left :(
Answer:
D. 1/3p and F. 3p over 9
Step-by-step explanation:
1/3p and 3p over 9
HELPP ME PLEASE ILL GIVE BRAINLIST :)
Answer:
C 7ft/yr
Step-by-step explanation:
What is the slope of the line through (-7,-8) and (0,4)?
WILL MAKR BRAINLIEST IF GOTTEN RIGHT
Answer:
20 feet
Step-by-step explanation:
20 feet
because the diagram said so....
what is the inequality for more than 100,000
Answer:
>100,000
Step-by-step explanation:
Five years ago today, Artie was four times as old as his sister Carrie. In five years time, Artie will be twice as old as Carrie. Find their current ages using a system of linear equations.
Answer: 25 , 10 years
Step-by-step explanation:
Suppose the present age of Artie and Carrie is x and y
According to the question, 5 years ago
[tex]\Rightarrow x-5=4(y-5)\\\Rightarrow x-4y=-15\quad \ldots(i)\\[/tex]
In five year time
[tex]\Rightarrow x+5=2(y+5)\\\Rightarrow x-2y=5\quad \ldots(ii)[/tex]
Solving (i) and (ii) we get
[tex]x=25,y=10[/tex]
The current age of Artie and Carrie is 25 and 10 years
Hello! This is 6th grade math, i was wondering if y'all knew this. Correct answer gets a brainliest
Answer:
6
Step-by-step explanation:
2(6-4)+3=7
2(2)+3=7
4+3=7
7=7
Answer:
The answer is 6.
Step-by-step explanation:
2(x-4)+3=7.
1. Multiply the 2 by each number/variable inside of the parenthesis.
2x-8+3=7
2. Combine like terms
2x-5=7
3. Take the 5 from the left side and add it to 7 on the right side
2x-5=7
+5 +5
2x = 12
4. Divide both sides by 2
2x/2= X and 12/2 = 6
5. The 2 cancels out, leaving you with x, and 12 divided by 2 is 6.
X = 6
A banner measures 5,4 feet long,
How long does the banner measure in inchos and in yards?
Enter your answers in the boxes,
5.4 ft =
in
Answer:
5.4 feet
1/1 yards
5.4 feet
Step-by-step explanation:
remember=3 feet 1 yard !!
Answer:3 feet 1 yard
Step-by-step explanation: it just is
What is the difference between a trapezoid and a rhombus?
A) A trapezoid is a parallelogram and a rhombus is not.
B) A rhombus always has 4 equal sides and a trapezoid does not.
C) A rhombus always has 4 right angles and a trapezoid does not have to.
Eliminate
D) A rhombus never has 2 sets of parallel sides and a trapezoid always does.
What expression is equivalent to (5x6)x(3x2)
(5x6)x(3x2) = (30x6)= 180
What is the solution to the equation?
√2x+10−6=2
*Picture of the Problem Below*
Answer:
x = 27
Step-by-step explanation:
Given
[tex]\sqrt{2x+10}[/tex] - 6 = 2 ( add 6 to both sides )
[tex]\sqrt{2x+10}[/tex] = 8 ( square both sides )
2x + 10 = 8² = 64 ( subtract 10 from both sides )
2x = 54 ( divide both sides by 2 )
x = 27
The food bank received a large 49 pound bag of potatoes that they would 2 points
like to share with several families. Each family will receive 3.5 lbs. How
many portions can they make from this bag? Choose all the equations that
can represent this situation.
Answer:
14 portion
Step-by-step explanation:
Given:
Total mass of potatoes = 49 pound
Mass of each small bag = 3.5 pound
Find:
Total number of bags
Computation:
Total number of bags = Total mass of potatoes / Mass of each small bag
Total number of bags = 49 / 3.5
Total number of bags = 14 bags
Total 14 portion can me made from big bag
If there are 60 males in a class of 120 students, what is the percent of females in the classroom?
A nickel has a mass of 5 grams. What is the mass of the nickel in milligrams?
Answer:
5,000 milligrams
Step-by-step explanation:
Know That One 1 gram equals = 1,000 milligrams
Hope this Helps!
What is the circumference of a circle with a radius of 3 3/4mm
Answer:
23.56mm
Step-by-step explanation:
Circumference = 2 * pi *r = 2*pi* (3.75mm)
Answer: 23.56mm
Shawna is a member of the swim team. She can swim 3 laps in 3 minutes
and 21 seconds. If Shawna swims at the same pace, how long would it take
her to swim 8 laps?
Plzz show work
Answer:
8 mins 56 secs
Step-by-step explanation:
3 minutes and 21 seconds divided by 3 laps is 1.07 so it takes her 1 minute and 0.7 sec for each lap then u just multuply 1.07 by 8 and u get 8.56 meaning 8 mins and 56 secs. hope i helped :)
How much commission would a salesperson ear for selling a car that costs $29,389? He receives 16% commission on each sale.
Answer:
Commission on car = $4,702.24
Step-by-step explanation:
Given:
Sales price of car = $29,389
Commission on sale of car = 16% = 0.16
Find:
Commission on car
Computation:
Commission on car = Sales price of car x Commission on sale of car
Commission on car = 29,389 x 16%
Commission on car = 29,389 X 0.16
Commission on car = $4,702.24
What is the positive square root of 16?
Answer:
4
Step-by-step explanation:
because The square root of 16 is 4, which is a rational number.
Answer:
4
Step-by-step explanation:
Anyone know the answer? Correct gets Brainliest!
Answer:
Try posting another question with an image of the problem attached
Step-by-step explanation:
Answer:
What's the question
Step-by-step explanation:
Solve the following system of equations using Substitution, showing all work.
2x+y=9
3x−2y=17
Answer:
(x,y)=(5,-1)
Step-by-step explanation:
1. 2x+y=9 ---> y=9-2x
2. Substitute y=9-2x into 3x-2y=17 ---> 3x-2(9-2x)=17 ---> 3x-18+4x=17 --> 7x=35 ---> x=5.
3. Substitute x=5 into 2x+y=9 ---> 2*5+y=9 ---> y=9-10 ---> y= -1
Can someone plz help me with this Math problem and plz explain how you got your answers
A watering can contained 5 ½ quarts water. After all the plants were watered, only 4 cups remained.
How many cups of water were used to water the plants?
7 cups
18 cups
40 cups
84 cups
Answer: 18 cups
Step-by-step explanation:
Answer:
the answer is 18 cups :))
one package of strawberries costs $4.50 how many will 3 packages cost?
if you can please show your work:)
I think you have to multiply them to get the answer $13.5
Can someone help me please
Answer:
The answer is D
Step-by-step explanation:
1/8 is the equivalent to 0.12
square root of 0.02 is 0.14
18% is equal to 0.18
Answer:
d. [tex]\sqrt{0.02}[/tex]
Step-by-step explanation:
1/8 = 0.125
18% = 0.18
1/5 = 0.2
1.6
0.09
[tex]\sqrt{0.02}[/tex] = 1.141
PLEASE HELP ASAPPP!!!
Step-by-step explanation:
hope it helps you......
Find the interquartile range (IQR) of the data in the dot plot below
Answer:
2 cm
Step-by-step explanation:
As we know, the iqr is found by subtracting Q3-Q1. So that means we need to find them first. Finding the median will help us accomplish this task. So when writing out the numbers to solve it 81,82,83,83,84,84,84,85 because the amount of data points are an even number, we will have two data points which will help us solve our median which in this case is where the 83 and 84 meet. Our median is thus 83+84/2 which is 83.5. Now look on both sides of the two numbers which make up our median. On either side of the 2 data points needed for the median, the is another 3 data points. To find your q1 and q3, you need to find the median of these numbers. For Q1 look for the median between the numbers 81,82,83 and for Q3, look for the median in the numbers 84,84,85. So, knowing this information, our Q1 value is 82 and our Q3 value is 84. So..... input these into the equation we have up top which is Q3-Q1=IQR so...... 84-82=IQR, thus, our IQR is 2.
2
Which of the following is equivalent to the expression
: 4?
5
Solve the right triangle shown in the figure.
ZC = 90°, BC = 7.50mi, AC - 11.43mi
a. AB = 19.5mi. _A = 31.2, B = 58.8°
b. AB = 16.6mi, 2A = 35.2, B = 54.8°
C.
AB = 13.7mi, ZA = 33.3º. ZB = 56.7°
d. No triangle satisfies the given conditions.
Please select the best answer from the choices provided
Ο Α
O A
Mark this and return
Save and Exit
Next
Submit
Answer: the answer is c
Step-by-step explanation:
Got it right on edg
WILL MARK BRAINLIEST IF GOTTEN RIGHT
Answer:
20 ft.
Step-by-step explanation:
Diameter is length across the circle/ across the middle
GO GO GO
<3
Water is filling a cylindrical water tank. As it is filled the radius of the tank expands at 0.2cm/s and the height decreases at the rate of 0.5cm/s. Find the rate at which the volume of the tank is changing at the instant the radius equals 1.8cm and height equals 65 cm. What is the volume of water at this point? Show all working. Volume, V, of the cylinder is given by V = ϖr2h.
Recall that V is a function of both r (radius of the cylinder) and h (the height of the cylinder). This is a partial differentiation problem. The volume is also changing with time.
Answer:
141.94 cm³/s
Step-by-step explanation:
Since the volume of the tank V = πr²h, and both the height and radius of the tank change with time, we find the rate of change of the volume with time, dV/dt from
dV/dt = dV//dr × dr/dt + dV/dh × dh/dt
where dV/dr = 2πrh, dr/dt = + 0.2 cm/s (since the radius of the tank expands), dV/dh = πr² and dh/dt = -0.5 cm/s (since the height of the tank decreases)
So,
dV/dt = dV/dr × dr/dt + dV/dh × dh/dt
dV/dt = 2πrh × + 0.2 cm/s + πr² × -0.5 cm/s
dV/dt = 0.4πrh cm/s - 0.5πr² cm/s
dV/dt = πr(0.4h - 0.5r) cm/s
We now find the rate at which the volume is changing when r = 1.8 cm and h = 65 cm.
So,
dV/dt = π(1.8 cm)(0.4 × 65 cm - 0.5 × 1.8 cm) cm/s
dV/dt = π(1.8 cm)(26 cm - 0.9 cm) cm/s
dV/dt = π(1.8 cm)(25.1 cm) cm/s
dV/dt = π(45.18 cm²) cm/s
dV/dt = 141.94 cm³/s