Answer:
more context please?
Step-by-step explanation:
2. Which of the following ordered pairs (x,y) satisfies the system of equations below?
x + y = 0
3x – 2y = 10
(3,2)
b. (2,-2)
(-2, 2)
d. (-2,-2)
a.
C.
timotor the nrice of a inh, in dollars, using the expression 60+
Answer:
x=2, y=-2
(2, -2)
Step-by-step explanation:
x + y = 0
3x - 2y = 10
3x - 2(0 - x) = 10 ( 2(0 - x) = -2x )
3x - (-2x) = 10 ( y = -x )
3x + 2x = 10
5x = 10
x = 2
Hope i helped, feel free to ask questions :D
Have a good day!
Solve the system of equations using substitution. y = -7x 2x – y = -9
Answer:
x = -1
y = 7
Step-by-step explanation:
We have a system of equations and are asked to solve using substitution.
y = -7x
2x - y = -9
Since we have an equation for y by itself, we can plug the first equation into the second.
2x - (-7x) = -9
Distribute :
(-(-7x))
2x + 7x = -9
Add like terms :
9x = -9
Divide 9 by both sides to get x :
x = -1
Now that we know x, we can plug it into the first equation to find y :
y = -7(-1)
y = 7
The triangles below are similar. By what ratio was triangle XYZ enlarged by to create triangle LMN? Use this information to calculate the length of the missing side. Show your work.
Answer:
Ratio: 3:2
LN = 18
Step-by-step explanation:
"similar" means that all the angles are the same and the sides were all increased by the same proportion.
Thus, we know that MN/YZ = LM/XY = NL/ZX
First, we need to find the ratio. To do this, we write MN/YZ as a fraction, and simplify.
MN/YZ = 15/10 = 3/2
(If you want, you can double check this using LM nd XY. 8 * 3/2 = 12, so this is correct)
To find the missing side, we simply multiply XZ by 3/2.
12 * 3/2 = 18, so LN = 18.
What is the monthly payment for a $14,000 loan for 6 years with an annual interest rate of 3.1%?
Answer:
Calculate the monthly and total repayment cost of your personal loan using the ... 1 year, 2 years, 3 years, 4 years, 5 years, 6 years, 7 years, 8 years, 9 years ... annual interest rates (APRs), you can see how your monthly loan repayments ... We compare loans that can be paid back over terms of between one and 25 years.
The answer pls I need help
Answer:
to figure out x, divide 5x by 5
to figure out 5x, times x by 5,
to figure out 5x-1 take away 1 from the answer in the middle column
Which of the following word problems can be solved using the equation 4(x + 8) = 40?
O
A square has a side length of Xinches. Each side of the square will be increased by 8 inches to create a larger square. If the larger square has a perimeter of
40 inches, what is the side length, in inches, of the original square?
Four friends share a box of cookies. After each friend receives x cookies, there are still 8 cookies left in the box. If there were initially 40 cookies in the box, how
many cookies did each friend receive?
A student has four bags of marbles. Each bag originally has x marbles. After taking out 8 marbles from each bag, there is a total of 40 marbles in the bags.
How many marbles were originally in each bag?
Oscar has 8 stacks of trading cards. Each stack originally has x trading cards. He adds 4 cards to each stack giving him a total of 40 trading cards. How many
trading cards did Oscar originally have?
Answer:
4(x+8)=40
4x+ 32= 40
4x=40-32
4x=8
x=8/4
x=2/1
There are 9 people in an office with 5 different phone lines. If all the lines begin to ring at once, how many groups of 5 people can answer these lines?
Answer:
1
Step-by-step explanation:
if it was 10 it would be 2, but it isnt. and it cant be a number with a decimal cause i would be surprised if a math problem has it where you cut people in half or portions
Marco has a bag of red, blue, and green tiles. Which set of events would be considered independent?
A) A tile is drawn and replaced, and then a second tile is drawn.
B) A tile is drawn and removed, and then a second tile is drawn.
C) A red or blue or green tile is drawn.
D) Two tiles are drawn at the same time.
Answer:
45
Step-by-step explanation:
what GCF of 22 and 30
Answer:
2
Step-by-step explanation:
REAL LIFE A cylindrical hazardous waste container has a diameter of 1.5 feet and a height of 1.6 feet. Abo
azardous waste can the container hold? Round your answer to the nearest whole number. (1 ft 7.5 gal)
Answer:
It can hold up to [tex]1.256ft^3[/tex] of waste
Step-by-step explanation:
Given
[tex]D = 1.5ft[/tex] -- Diameter
[tex]h = 1.6ft[/tex] -- height
Required
Determine the amount of waste it can hold
This simply means that we calculate the volume of the cylindrical container.
And this is calculated using:
[tex]Volume = \pi r^2h[/tex]
Where
[tex]\pi = 3.14[/tex]
and
[tex]r = \frac{D}{2}[/tex]
[tex]r = \frac{1.5}{2}[/tex]
[tex]r = 0.75[/tex]
So, we have:
[tex]Volume = 3.14 * 0.5^2 * 1.6[/tex]
[tex]Volume = 1.256ft^3[/tex]
Hence, it can hold up to [tex]1.256ft^3[/tex] of waste
The amount of waste a cylinder can hold nearest to the whole number is 3 cubic feet.
What is a cylinder?A cylinder is a closed solid that has two parallel circular bases connected by a curved surface.
A cylindrical hazardous waste container has a diameter of 1.5 feet and a height of 1.6 feet.
The amount of waste a cylinder can hold will be given by the volume of the cylinder.
The volume of the cylinder will be
[tex]\rm Volume = \dfrac{\pi}{4} d^2 h[/tex]
We have
d = 1.5 ft
h = 1.6 ft
Then
[tex]\rm Volume = \dfrac{\pi}{4} * 1.5^2 * 1.6\\\\\rm Volume = \dfrac{\pi}{4} *2.25 * 1.6\\\\\rm Volume = 2.82 \approx 3 \ ft^3[/tex]
More about the cylinder link is given below.
https://brainly.com/question/3692256
Item 8 What is 31.5632 rounded to the nearest tenth?
Answer:
31.6
Step-by-step explanation:
Given:
A =
1 −1
−2 3
B =
1 5
8 −8
C =
1 2
3 4
Solve:
AX + B = C
Answer:
-5 3,
-5 6
Step-by-step explanation:
assignment on ed
What are the multiples of 5 starting from 100?
Answer:
100;105;110;115;120;125;130;135;140;145;150;155;160....
Step-by-step explanation:
Answer:
100, 105, 110, 115, 120, 125, 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200
Step-by-step explanation:
What is the slope of the line that passes through (5,-1) and (8,2)
Answer:
m=1 (slope)
Step-by-step explanation:
m= change in y / change in x
m= (y2 - y1) / (x2 - x1)
m= (2-(-1))/ (8-(5))
simplify
m= 3/3 = 1
Which could a dilation result in?
Answer:
1. A figure getting smaller
2. figure getting larger
Wor
Stug
Nor
Par
7) The table shows the prices for games in Bella's soccer league.
Her parents and grandmother attended a soccer game. How
much did they spend if they all went together in one car?
(Example 3)
a. Write an expression that represents the cost of one
carful of nonstudent soccer fans. Use x as the number
of people who rode in the car and attended the game.
is an expression that represents the cost
of one carful of nonstudent soccer fans.
b. Since there are three attendees, evaluate the expression
12x + 5 for x = 3.
12) +5=__ +5 =
The family spent __ to attend the game.
Solve for t. d= -16t^2 + 12
Answer:
d= -16t^2 + 12
Step-by-step explanation:
2.1 Factoring d + 16t2 - 12
Answer:
t=3/8+-(sqr)9-4d/8
Step-by-step explanation:
What is the area of the triangle?
10
8
12.8
Mr. Tankard's minivan has a 21 gallon
tank. He can travel 354 miles on one
tank of gas. How many miles per gallon
does the minivan get? How many tanks
of gas will he need to travel 870 miles?
Answer:
1. 16.86 or 16[tex]\frac{6}{7}[/tex] miles per gallon.
2. 2.46 tanks of gas
Step-by-step explanation:
1. 354 ÷ 21= 16.86
general sequence of 8,3-2,-7
Answer:
x - 5
Reason
8 - 5 = 3
3 - 5 = -2
-2 - 5 = -7
Which number rounds to 260 when rounded to the nearest 10?
Answer:5, 6, 7, 8, or 9.
Step-by-step explanation:
Can u do these for me plz fast
Answer:
nothing is there?
Step-by-step explanation:
Answer:
please there is no question
Step-by-step explanation:
where are the questions
9 divided by what equals 18?
Answer:
0.5
planation:
9/18 = 0.5
If you write the problem out x will represent the missing number
9 ÷ x = 18
You can write it as 9 ÷ 18
which is 0.5
The problem is asking what is 9 divided by to get 18
162 . . . . . . . . . . . . . . . . . .
Help me with my math **50 pts** I mark brainliest**
Step-by-step explanation:
<1+<2=180
<2+<3=10
<1+<2=<2+<3=180
<2
<2
HELP PLSSSSSSS PLSSS I BEGH PLSSSSSSS
Step-by-step explanation:
Unit rate means divide so divide the oz by the cost. Which one is the better cost
2(2.25x+8) tell me pls :(
Answer:
9x+32
----------
2
Step-by-step explanation:
4. Use the two patterns below. What are the first four ordered pairs formed from
corresponding terms of the two patterns? *
Add 4: 0, 4, 8,
Add 2: 0, 2, 4,
Answer:
0,2,4,8
Step-by-step explanation:
:)
What's 506.25 roundest to the nearest whole
Answer:
506
Step-by-step explanation:
How so you solve -5r+2r is greater than 54
Answer:
r < -18
Step-by-step explanation:
-5r+2r is greater than 54 can be written symbolically as:
-5r+2r > 54
Combining the r terms, we get:
-3r > 54
Solving this result for r requires reversing the direction of the inequality sign:
r < -54/3, or r < -18
Answer:
r < -18
Step-by-step explanation:
[tex]-5r+2r > 54\\\\\rightarrow \text{Greater Than - } >\\\\\\\text{Combine the Like Terms}\\\\-5 + 2 = -3\\\\\text{So:}\\\\-5r+2r=-3r\\\\\\-3r>54\\\\\text{Divide by -3: }\\\\\frac{-3r>54}{-3}\\\\\boxed{r<-18}\\\\[/tex]
We switch the inequality sign if we multiply or divide both sides of the inequality by a negative number.
Hope this helps.
Slope- intercept equation from graph
To find the slope-intercept form
--> we need to find the slope
--> we need to find the y-intercept
The point at which the x-coordinate equals zero
Let's find the slope
--> let's pick any two pair of points
(0, -3) & (6, 0)
(x1, y1) ==> (0, -3)
(x2, y2) ==> (6, 0)
--> our slope formula is:
[tex]\text{Slope}=\dfrac{0--3}{6-0}=\dfrac{3}{6}=\dfrac{1}{2}[/tex]
Let's find our y-intercept
--> based on the definition, '-3' is our y-intercept
Let's plug in our slope & y-intercept in the slope-intercept form:
[tex]y=\dfrac{1}{2}x-3[/tex] <== Answer