Answer:
y= 2x + 8 , y = 4x - 2
2x + 8 = 4x - 2
8 = 2x - 2
10 = 2x
5 = x
Step-by-step explanation:
Answer:
x = 5
Step-by-step explanation:
y = 2x + 8
substitute the y in the other expression with this expression (you can do it vise versa too but i chose this because it was first)
2x + 8 = 4x - 2
goal is to isolate the variable
add 2 to both sides (this cancels out the -2 on the right side)
2x + 8 + 2 = 4x - 2 + 2
2x + 10 = 4x + 0
2x + 10 = 4x
subtract -2x from both sides (cancels out the 2x on the left side)
2x - 2x + 10 = 4x - 2x
0x + 10 = 2x
10 = 2x
divide both sides by 2 (cancels out the 2 on the right side)
10 ÷ 2 = 2x ÷ 2
5 = 1x
5 = x
variable is isolated and tells us that x = 5
Absolute Value of 7 equals -7
True or false
What is the LCM of 550731776 and 21381376 || SUPER URGENT, WILL GIVE BRAINLIEST TO FIRST AND CORRECT ANSWER!!!!!!
Answer: LCM = 45,997,668,663,296
Answer:
The Least Common Multiple (LCM) is: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 7 x 7 x 7 x 7 x 17 x 17 x 17 x 17 = 45997668663296
7. Drag and drop each of the values below to correctly complete the inequality statement.
10
✓ 20
3.9
3
Answer:
4231
Step-by-step explanation:
Take the test
The scores of the quizzes of five students in both English and Science are:
English Science
Student 1 6 8
Student 2 5 5
Student 3 9 6
Student 4 4 7
Student 5 8 9
For English, the mean is 6.4 and the standard deviation is 2.0. For Science, the mean is 7 and the standard deviation is 1.6. Using the formula below or Excel, find the correlation coefficient, r, for this set of scores. Answer choices are rounded to the nearest hundredth. ram-izlet 0
a) 0.23
b) 0.05
c) 0.50
d) 0.42
Answer:
0.23
Step-by-step explanation:
Given the data:
____(x) __(y)__(x - m1) /s1 ___(y-m2) /s2
1 ___6 ___8__ - 0.2 _______0.625
2 __5 ___ 5__ - 0.7________ - 1.25
3 __9____6__ 1.3 ________ - 0.625
4__ 4____ 7__ - 1.2 ______ 0
5__ 8 ____9 _ 0.8 _______ 1.25
For English :
Mean score(m1) = 6.4
Standard deviation (s1) = 2.0
For Science :
Mean score (m2) = 7.0
Standard deviation (s2) = 1.6
n = number of observations = 5
Correlation Coefficient (r) :
r = 1/(n - 1) Σ[((X - m1) / s1) * ((Y - m2) /s2)]
(-0. 2 * 0.625) + (-0.7 * - 1.25) + (1.3 * - 0.625) + (-1.2 * 0) + (0.8 * 1.25) = 0.9375
r = 0.9375/(5-1)
= 0.234
= 0.23
what is 300% as a decimal and as a mixed number or fraction in simplest form
Answer:
3.0
Step-by-step explanation:
3/1 = 3 = 3.0
So i have a question???
What time is shown on the clock below?
A 5:455:45
B 5:005:00
C 4:454:45
D 4:09
Answer:
There is no clock I can not help you without the completed question.
If the area of a shape is 50 square feet and the width is 10 feet, what is the lentgth
Answer:
5 feet
Step-by-step explanation:
To find the length of the shape, we can divide the area to the width.
Formula for area is [ a = lw ].
Since we are solving for length, the formula will be [ l = a/w ]
l = 50/10
l = 5
Best of Luck!
Give standard form for 1,000,000+80,000+30+3
Answer:
1,080,033
Step-by-step explanation:
if a train travels 255 miles in 3 hours, how far will the train travel in 5 hours at the same rate?
what number is 3.75i+7
Answer:
7+3.75i
Step-by-step explanation:
Answer:
It's a complex and imaginary number
Step-by-step explanation:
Because complex numbers always appear in the form (a + bi)
Fill in the blanks to complete the steps of this word problem: Moby can use his jetpack to travel 240 miles in 4 hours. How far can he travel in 10 hours?
If d represents the distance Moby travels, one way to write a proportion for this situation is
?
/4=d/
?
. Using cross multiplication gives us a new equation:
4/d
=4d. The final step is to divide by
?
, which tells us that Moby can travel
?
600miles in 10 hours.
Answer:
ummmm
Step-by-step explanation:
4271
7645
9822
0378
Find the area of a circle shaped swimming pool with a radius of 5 meters
Answer:
25π
Step-by-step explanation:
using the formula πr² you replace r with the radius of 5 and square that which equals 25π or approximately 3.1415 and repeating numbers.
18/23 as a decimal rounded to the nearest hundreth
Answer:
18/23=0.7826
0.7826 rounded to the nearest hundredth is 0.78
Your answer is 0.78
Answer:
0.78
Step-by-step explanation:
All you have to do is 18 divided by 23. That equals 0.78260869565 which when rounding to nearest hundreth is equal to 0.78 because hundreth is to the second decimal place.
What annual rate of interest is required to double an investment in 9 years
Answer:
8%
Step-by-step explanation:
If an investment scheme promises an 8% annual compounded rate of return, it will take approximately (72 / 8) = 9 years to double the invested money
Write the equation of the line graphed below
There are 2 grams of fat in 1 pound of chicken. there are 9 grams of fat in 4.5 pounds of chicken. How many grams of fat would be in 10 pounds of chicken?
Answer:
There will be 20 grams of fat in 10 pounds of chicken.
Step-by-step explanation:
Based of the pattern you can tell that the Grams of fat will always be double the amount of pounds.
2 grams of fat in 1 pound
9 grams in 4.5 pounds
So:
10 * 2 = Grams of fat
10 * 2 = 20 Grams of fat.
So there will be 20 grams of fat in 10 pounds of chicken.
Solve -4(x + 10) - 6 = -3(x - 2).
Answer:
-52 I think
Step-by-step explanation:
Im pretty sure...
The answer would be x=-52
if angle two equals 130 find the measure of angle 6 and the answer is not 50 or 130 willmark brainiest
9514 1404 393
Answer:
130°
Step-by-step explanation:
Angles 2 and 6 are both in the northeast corner of their respective intersections, so are "corresponding" angles.
Assuming lines A and B are parallel, corresponding angles have the same measure. The measure of angle 6 is 130°.
complete ratio for the brain thingy
which statement is true???
13/14>25/28
21/45<4/9
5/6>11/12
4/5<8/25
Answer:
none of them are true
Step-by-step explanation:
sorry NONE of them are true
Answer:
A: 13/14 > 25/18
Step-by-step explanation:
If its from edge quiz then A
A swimmer dives to 65 feet below the surface of the ocean. Write the integer that represents the depth of the dive.
Answer:
-65 i believe
Step-by-step explanation:
Given below are lease terms at the local dealership. What is the total cash
due at signing?
Terms:
• Length of lease = 36 months
• MSRP of the car = $27,500
• Purchase value of the car after lease = $17,500
• Down payment = $3400
• Monthly payment = $425
• $375 security deposit
• $500 acquisition fee
Answer:
4275$
Step-by-step explanation:
3400 down pmt + 375 sec dep + 500 fee
The total cash due at signing is, $15300
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Given, The MSRP of the car is, $27,500.
Now, The monthly payment = $425 and it is for 36 months,
Therefore, The total monthly downpayment is, 36×425 = $15300.
So, The total cash due at signing is, $15300 the monthly installments.
learn more about numerical expressions here :
https://brainly.com/question/29199574
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noah receives a 5$ discount every month on his cell phone bill because he signed up for auto pay from his bank account. over the last 8 month , noah has paid a total of $ 280 for his cell phone bill. Watch would noah be charged for his cell phone bill each month if he stopped using auto pay
Which comparison is not correct? |-7| > -9 |-2| |-9| -8 < |-4|
Answer:
The third one is the one that's not correct.
Step-by-step explanation:
|8| is just 8 but |-9| is 9. So in that case |8| is not greater than 9.
Answer: it is the first one
Step-by-step explanation: the third one is not correct cause it is obviously less than 9
A two digit number is 4 times the sum and three times the product of its digits.Find the number .
Answer:
24
Step-by-step explanation:
= 10x+y=4(x+y)
= 10x-4x=4y-y
= 6x=3y
(÷2) = (2x=y)----- eq.1
According to the quest:-
Case.2-- the number is also equal to 3 times the product of the digits.
10x+y=3xy
Substitute the value of y=2x in place of y.
We get, 10x+2x=(3x)(2x)
= 6x²-12x=0
= 6x(x-2)=0
= 6x=0 so, x=0 or x-2=0 so, x=2.
Consider eq.1:- 2x=y
= 2(2)=y so y=4
OR
= 2(0)=y so y=0
So we take x=2 and y=4
The number:- 10x+y
= 10(2)+4
= 24
(30 PTS + BRAINLIEST PLS HELP ME OUT) How many elements are in the factor set of p^m * q^n , where m, n ∈ W, and p and q both represent prime numbers?
Answer:
q=p^m q^n
Step-by-step explanation:
p^m*q^n=p^m*q^n
m= p^m q^n
n=p^m q^n
W=p^m q^n
p=p^m q^n
q=p^m q^n
I hope this helps!
Label the endpoints to round 49.672 to the nearest hundredth
Answer:
49.67 , you're welcome !
The round-off of the decimal number nearest to the hundredth is 49.67.
What is a round-off?When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. For entire numbers as well as decimals at different places of hundreds, tens, tenths, etc., it is done.
The accepted method for representing both integer and non-integer numbers is the decimal numeral system. Decimal notation is the term used to describe the method of representing numbers in the decimal system.
The given number is 49.672 will be rounded off as below:-
49.672 = 49.67
Therefore, the round-off of the decimal number nearest to the hundredth is 49.67.
To know more about rounding-off numbers follow
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convert 3.8 (8 repeating) into a fraction
Answer:
19/5
Step-by-step explanation:
Answer:
3 8/9
Step-by-step explanation:
I used a website
I DONT HAVE A COMPASS SO I NEED HELP. PLEASE AND THANK YOU!
Answer:
The figure is rotated 180 degrees. Also we don't use "compasses" in math.
Step-by-step explanation:
math I need help with it!!!!!
elana went to the store where you can scoop your own popcorn and buy as much as you want. She bought 10 ounces spicy popcorn for $2.50
how much dose popcorn cost per ounce
Answer:
each ouce is worth 25 cents
solution
in order to solve this you need to create proportions so
10 ounces
per $2.50
well you want this to be a unit rate so you would have
10 ounces = 1 ounce
2.50 x
to get to the unit rate, you can see that you divided 10 from 10 ounces so you would do the same to the bottom ...
2.50/10 which is equal to 0.25.