Answer:
D
Step-by-step explanation:
2x - 2y = 4
- x + y = - 2
Answer:
infinitely many solutions
Step-by-step explanation:
(GIVING BRAINLIEST!!!)
Last night, Roberto spent 90 minutes doing homework, infinity symbol hour reading, and 540 seconds making his lunch for the next day. How many more minutes did Roberto spend doing homework than he did reading and making his lunch?
A) 81 minutes
B) 50 minutes
C) 49 minutes
D) 41 minutes
Answer:
A) 81 minutes
Step-by-step explanation:
What is the slope of this line?
Answer:
A line is increasing if it goes up from left to right. The slope is positive, i.e. m > 0 {\displaystyle m>0} .
A line is decreasing if it goes down from left to right. The slope is negative, i.e. m < 0 {\displaystyle m<0} .
If a line is horizontal the slope is zero. This is a constant function.
If a line is vertical the slope is undefined (see below).
I am about to go on trip help
Answer:
1 inch = 8 miles
112÷14=8, so one inch is 8 miles.
Can someone help me please!!!
Answer:
Step-by-step explanation:
(0,8)(8,0)
find slope
m=-1
b=8
y=-x+8
Answer:
y= -1x+8
Step-by-step explanation:
slope is -1/1 and your y intercept is (0,8)
Hailey took a taxi from her house to the airport. The taxi company charged a pick-up fee of $2.40 plus $4.50 per mile. The total fare was $87.90, not including the tip. Write and solve an equation which can be used to determine mm, the number of miles in the taxi ride.
Answer:
The taxi drove Hailey for 19 miles.
Step-by-step explanation:
1. Subtract the tip.
$87.90 - $2.40 = $85.5
2. Divide by the price per mile. ($4.50)
$85.5 / $4.50 = 19
2. (11.01 MC)
Nina has a piece of fabric measuring 5 yards. How many 1-inch strips can be cut from the fabric?
108 strips
I
144 strips
180 strips
120 strips
Answer:
120strip
Step-by-step explanation:
Simplify the following expression 2n+6+4y+8
Answer:
2n+4y+14
Step-by-step explanation:
Answer:
So we are going to Simplify 2n+6+4y+8
First thing we add the numbers:
2n+6+4y+8=
2n+14+4y=
Which equals
2n+4y+14
Answer :
2n+4y+14
Solve the following equation:
1.3(a + 2) + 5.6 = 17.3
Answer:
a=7
Step by step Explanation:
Step 1: Simplify both sides of the equation.
1.3(a+2)+5.6=17.3
(1.3)(a)+(1.3)(2)+5.6=17.3(Distribute)
1.3a+2.6+5.6=17.3
(1.3a)+(2.6+5.6)=17.3(Combine Like Terms)
1.3a+8.2=17.3
1.3a+8.2=17.3
Step 2: Subtract 8.2 from both sides.
1.3a+8.2−8.2=17.3−8.2
1.3a=9.1
Step 3: Divide both sides by 1.3.
1.3a 9.1
1.3 = 1.3
a = 7
Sully has a loan which he repays every month. If the loan amount includes interest, his loan amount due, in dollars, after t years, is shown by the following expression.
7,000(0.90)^12t
Which statement below best describes the coefficient, 7,000?
A. The number of times sully repaid the loan since he began making payments
B. Sully’s initial loan amount
C. The decrease in Sully’s loan amount every month
D. The rate at which Sully repays the loan
i would say its B. The initial loan amount
Answer:
Sully's initial loan amount
edit: i accidently rated my answer as 1 star but i promise its right
Which values of m make 1/4 m > 3 true ?
Answer:
m > 12
Step-by-step explanation:
I) Find what m is in 1/4m = 3:
1/4m = 3
Divide by 1/4:
m = 12
II) Make an inequality:
m > 12
please answer don’t comment if u don’t know
Answer:
the first answer choice
Step-by-step explanation:
if you do 1/3 times -9 its -3
Use elimination to solve for x and y:
5x + 4y = 23
x - 4y = - 5
O (3, 2)
O (2,3)
0 (7. – 3)
0 (7,3)
Answer:
x=3, y=2
Step-by-step explanation:
Find the domain and range of f(x)=4*(1/2)^x
find the number of distinct permutations of the word "CALCULATOR."
Given:
The word is "CALCULATOR."
To find:
The number of distinct permutations.
Solution:
In the word "CALCULATOR",
The number of letters = 10
In which, we have 2 C, A, L and 1 U, T, O, R.
We know that,
[tex]^nC_r=\dfrac{n!}{(n-r)!}[/tex]
[tex]^nC_n=\dfrac{n!}{(n-n)!}=n![/tex]
To find the number of distinct permutations of the given word need to divide permutation of all letter by the permutations of repeated letters.
[tex]\text{Total ways}=\dfrac{^{10}C_{10}}{^2C_2\ ^2C_2\ ^2C_2\ ^1C_1\ ^1C_1\ ^1C_1\ ^1C_1}[/tex]
[tex]\text{Total ways}=\dfrac{10!}{2!2!2!1!1!1!1!}[/tex]
[tex]\text{Total ways}=\dfrac{10\times 9\times 8\times 7\times 6\times 5\times 4\times 3\times 2\times 1}{2\times 2\times 2\times 1\times 1\times 1\times 1}[/tex]
[tex]\text{Total ways}=453600[/tex]
Therefore, the number of distinct permutations of the word "CALCULATOR" is 453600.
Number of distinct permutation of the word "CALCULATOR." is 453600
How to solve this problem?
permutations of the word "CALCULATOR"Total number of words in "CALCULATOR" is 10
we find out the words that are repeating
A is repeating twice (2)
C is repeating twice (2)
L is repeating twice (2)
Number of permutations = number of letters !/ repeating letters!
Number of distinct permutation =
[tex]\frac{10!}{2!2!2!} \\\frac{10\cdot9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1}{2\cdot2\cdot2} \\453600[/tex]
Number of distinct permutation of the word "CALCULATOR." is 453600
learn more about the distinct permutations here:
https://brainly.com/question/21767354
WILL GIVE BRAINLIEST
An employee saved 25% of her $400 paycheck. How much money did she save?
Answer:
she had save 100 dallors
help!!!!!!!!!!!!!!!!!!!!!!!!!!! im a dummy
your scientific notation will be 2.505 x 10^4
Diego is building a patio deck. The length of the deck is (x + 8) feet. The width of the deck is (x + 3) feet. What is the simplest form expression for the perimeter of the deck?
Answer:
(4x + 22) feet
Step-by-step explanation:
Diego is building a patio deck. The length of the deck is (x + 8) feet. The width of the deck is (x + 3) feet. What is the simplest form expression for the perimeter of the deck?
A patio deck = Rectangular in shape
Hence:
The formula for the Perimeter of a rectangle = 2L + 2W
Where
L = Length
W = Width
The length of the deck is (x + 8) feet. The width of the deck is (x + 3) feet.
The perimeter of the deck =
2(x + 8)feet + 2(x + 3)feet
= (2x + 16) feet +( 2x + 6)feet
= (2x + 2x + 16 + 6) feet
= (4x + 22) feet
Therefore, the perimeter of the deck = (4x + 22) feet
The fish tank has 80 fish in it. 75% of the fish are guppies. How many guppies are in the tank?
hurryyyy pleasee
Answer:
60
Step-by-step explanation:
80% of 75 = 60
The answer to the problem
================================================
Apply the slope formula
m = (y2-y1)/(x2-x1)
m = (8-6)/(2-5)
m = (2)/(-3)
m = -2/3
As you can see, we subtract the y coordinates together. We also subtract the x values together in the same order. If the order is mixed up, then you'll get the wrong sign for the final answer.
The slope is equal to rise over run. Think of "rise" as "change in y", which explains the difference in y values. The run is equal to the change in x, which is the difference in x values.
42 = y + 15 whats y? y == __
Solution
[tex]y=27[/tex]
Step-by-step explanation:
Subtract [tex]15[/tex] from both sides of the equation:
[tex]42=y+15[/tex]
[tex]42[/tex][tex]-15=y+15[/tex][tex]-15[/tex]
Simplify:
Subtract the numbers:[tex]42-15=y+15-15[/tex]
[tex]27=y+15-15[/tex]
Subtract the numbers:[tex]27=y+15[/tex][tex]-15[/tex]
[tex]27=y[/tex]
Move the variable to the left:[tex]27=y[/tex]
[tex]y=27[/tex]
[tex]y=27[/tex]
The point (-5, 3) is reflected across the x axis. What are the coordinates of this reflection? Group of answer choices
Answer:
( -5, -3)
Step-by-step explanation:
Andrew has $550 in a savings account that earns 5 % annually. How much will he earn in interest in 4 years?
Answer:
I think 668.52, but im not exactly sure
Answer:
2200
Step-by-step explanation:
So if you do 550 and x that by 4 it equles it is 2200 .
What is 6 x 1.11?
Give your answer in pounds.
Answer:
Step-by-step explanation:
6.66 pounds is the correct answer
-⅕ (10-5+25x)
Please help!
Answer:
-[tex]-\frac{1}{5} * (5+25x)\\-\frac{1}{5} *5-\frac{1}{5}(25x)\\-1-\frac{1}{5}(25x)\\-1 -1 (5x)\\01-5x[/tex]
Step-by-step explanation:
FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (30pts)
Solve the system of equations
help me show the steps
5x -2y = 88
3x+4y=58
Answer:
x=18
Step-by-step explanation:
add 2y to both sides 5x=2y+88
subtract 88 from both sides 2y=5x-88
substitute 2y in the second equation for 5x-88
3x+10x-176=58
add like terms 13x-176=58
add 176 both sides
13x=234
x=18
Answer:
( 18, -6.5 )
Step-by-step explanation:
First choose which method you plan on using: Substitution or Elimation. I chose elimination based off preference.
How to solve using Elimination:
5x -2y = 88 (multiply every number in this equation by two)
3x+4y=58
10x -4y = 176
3x+4y=58 (combine these two equations)
13x = 234 (isolate x by dividing by 13 on both sides)
x = 18 (this is your value for x)
3(18) +4y=58 (plug in for x)
54+4y=28 (solve)
4y = -26 (subtract 54 from both sides)
y = -6.5 (this is y)
write answer in (x, y) format
( 18, -6.5 )
Sally answered 90% of the math testquestions and 80% of the history test questions correctly. if each test had 50 questions , how many questions in all did she answer correctly?
Complete to get an equivalent fraction:
5/4 = _____/20
Answer:25
Step-by-step explanation:
Simply multiply by five on both the 5 and 4 and you get an equivalent fraction
Answer:
25/20
Step-by-step explanation:
I set up a proportion and to find the how 4 goes to 20, I divided 20/4 to get 5 and then I multiplied 5*5 to get 25.
You can also cross multiply.