Okay so like for integers I use a number line to help me like negative on one side and positive on the other but how do I deal like with these problems? And please explain :)
Answers
Answer:
Step-by-step explanation:
remember this:-
if +,- comes: change sign to - (eg. 8+(-4)= 8-4=4)
if -,+ comes: change sign to - (eg. 8-(+4)= 8-4=4)
if -,- comes: change sign to + (eg. 8-(-4)=8+4=12)
if +,+ comes: change sign to + (eg. 8+(+4)=8+4=12)
Related Questions
(b+a)^2 ÷4 ; use a=-2, and b=4
Answers
Answer:
1
Step-by-step explanation:
(b + a)² ÷ 4 when a = -2 and b = 4
~Substitute
(4 + (-2))² ÷ 4
~Simplify
2² ÷ 4
4 ÷ 4
1
Best of Luck!
Answer:
1
Step-by-step explanation:
it is above in the photo.
A car travels 800 kilometers in 10 hours. What is it's average speed? How far will it go in 14 hours?
Answers
Answer:
10
Step-by-step explanation:
[tex]\\ \rm\longmapsto Speed=\dfrac{Distance}{Time}[/tex]
[tex]\\ \rm\longmapsto Speed=\dfrac{800}{10}[/tex]
[tex]\\ \rm\longmapsto Speed=80km/h[/tex]
Time=14h[tex]\\ \rm\longmapsto Distance=Speed(Time)[/tex]
[tex]\\ \rm\longmapsto Distance=80(14)[/tex]
[tex]\\ \rm\longmapsto Distance=1120km[/tex]
anyone know this question: 16) -8(-21 - 2) - 6
Answers
Answer:178
Step-by-step explanation:
distribute, multiply -8 with - 21 and -2 . that would get you 168 + 16 - 6. add the 168 and 16, it equals 184, then subtracts it with a 6.
Parallel lines j and k are cut by transvesal t . Which statement is true about ∠2 and ∠6
Answers
Answer:
angle 1 and angle 7 are alternate exterior angles.
angle 1 and angle 5 are corresponding angles.
angle 3 and angle 8 are same side interior angles.
angle 2 and angle 8 are alternate interior angles.
Step-by-step explanation:
The sun of three numbers is 40. The second number is 6 more than the first. The third number is 1 less than 5 times the first. Find all three numbers.
Answers
Answer:
first n = 5
sec n = 11
third n = 24
Step-by-step explanation:
40-6+1 = 35
35/7 = 5
1st no = 5
2nd no = first + 6
= 5+6
= 11
3rd no = 5(first) - 1
= 5(5) - 1
= 25-1
= 24
double check total = 1st + 2nd + 3rd
= 5 + 11 + 24
= 40
Writing equations in standard form:
Hi I need help with writing equations in standard form using points. The points are (4,5) and (-3,-1) I already found the slope which is 6/7 but I don’t know how to do the point slope form. This is the slope form if you don’t know:
Y-y1=m(x-x1)
Answers
y - 5 = 6/7(x - 4)
Multiply everything by 7 to remove fractions
7y - 35 = 6(x - 4)
7y - 35 = 6x - 24
-6x + 7y = -24 + 35
-6x + 7y = 11
Some people prefer a positive number in front of x so multiply by -1
6x - 7y = -11
You can check the answer by testing it works for both of the original points
6x4 - 7x5 = 24 - 35 = -11 true
6x-3 - 7x-1 = -18 - -7 = -11 true
{ALGEBRA} What’s the domain and range of these graphs?
Answers
I fixed your first and second graph
And filled in the blanks
Hope this helps!
Distance & midpoint
Answers
Step-by-step explanation:
All steps are in picture above.
Note:if you need to ask any question please let me know.
27. In the figure, AFJD, BGFE, CHGA, DIHB and EJIC are straight lines.
Find a + b + C + d + e.
Answers
So follow this rule 180(n-2)
180(5-2)
180(3)= 540
So in another words: a+b+c+d+e=540
Malcom has $638.54 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for 159.50 today. Write an inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee.
(9th grade Algebra 1)
Answers
The inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee is 638.54 - 159.50 + x ≥ $500
The given parameters:
initial amount of money in Malcom's account = $638.54
a constant balance to be maintained to avoid a fee = $500
amount to be withdrawn today = $159.50
To find:
inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a feeLet the LEAST amount = x
Here are basic things to note in order to form the equation:
The money going into the account must be addedThe amount to be withdrawn will be subtracted Finally, the total amount must be greater or equal to $500Considering the above explanation, the inequality becomes;
638.54 + x - 159.50 ≥ $500
Rearrange to match the given options;
638.54 - 159.50 + x ≥ $500
Thus, the inequality that would be used to solve for the LEAST amount of money he needed to deposit to avoid a fee is 638.54 - 159.50 + x ≥ $500
Learn more here: https://brainly.com/question/22208743
Which is the least positive integer that should be multiplied with 2 × 2 × 2 × 3 so that we get
a perfect square?
Answers
Answer:
3
Step-by-step explanation:
In order to have a perfect square you have to have at least two prime factors, and since three is quite clearly not in a pair, the answer is three.
HOW MANY DEGREES IN A SUPPLEMENTARY ANGLE???
Answers
Answer:
180 degrees
Step-by-step explanation:
evaluate the expression
Answers
Answer:
-213
Step-by-step explanation:
Hi there!
[tex]3|x+y|^2-(xy)^2[/tex]
Replace x with 3 and y with -5
[tex]= 3|3+(-5)|^2-[(3)(-5)]^2\\= 3|3-5|^2-(-15)^2\\= 3(2)^2-225\\= 3(4)-225\\= 12-225\\= -213[/tex]
I hope this helps!
Ms. Johnson bought an area rug for her den. The perimeter is 30 feet. The width of the rug is
2yards What is the area of Ms. Johnson's rug in square feet and square yards?
in both feet and yards.
Answers
Answer:
6 sq yards, 54 sq feet
Step-by-step explanation:
30/3 = 10, 10 - 4 = 6, 6/2 = 3, 3 * 2 = 6
30/3 since we are calculating yards(3 ft = 1 yard), 10 -4 since 2 sides have the width of 2 yards. 6/2 since there is two sides left.
Basically the same thing for sq feet.
Need help on this hm THE MIDDLE ONE
Answers
Answer:
{0, 1, -1}
Step-by-step explanation:
2x - 6 = 3x + 1 - x - 7
2x - 6 = 2x - 6
0 gives you -6 = -6
1 gives you -4 = -4
-1 gives you -8 = -8
I’m struggling on this one pls help
Answers
Answer:
1:2
Step-by-step explanation:
11 triangles : 22 hearts
= 1:2
how to find standard form given 2 points
Answers
9514 1404 393
Answer:
(y2 -y1)x -(x2 -x1)y = (y2 -y1)(x1) -(x2 -x1)(y1)
Step-by-step explanation:
The standard form equation of a line is of the form ...
ax +by = c
where a, b, c are mutually prime integers. The leading coefficient must be positive.
__
The standard form equation of a line can be found for the two points (x1, y1) and (x2, y2) using the formula ...
(y2 -y1)x -(x2 -x1)y = (y2 -y1)(x1) -(x2 -x1)(y1)
Using this equation, you must choose y2>y1. If y2=y1, you must choose x1>x2.
You will need to eliminate any fractions by multiplying the equation by an appropriate number. Once you have the numbers figured out, you need to factor out any common factors from the coefficients and the constant, so they are all mutually prime.
Will award Brainliest!
Answers
Answer:
RPO = 30
STO = 20
POR = 130
Step-by-step explanation:
TOS Obtuse because its larger than 90 = 130 degree
Answer:
A
Step-by-step explanation:
Becausd angle TPR is ninety degrees which is 90degrees
Please someone help please I’m stuck with this question please show work too
Answers
In this case, you can only have whole number inputs, since you can’t see 1/2 a pot.
Answer D would include everything, but Answer B only has whole numbers.
Your answer is B.
Identify the rule for the following pattern: 4, 24, 144...
Answers
Answer:
Multiply By 6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The common ratio is 6 ie dividing the second term by the first term or the third term by the second term ie
24 ÷ 4 = 6
144 ÷ 24 = 6
And so on....
0.582 times 10 what is value of the 2
Answers
Answer:
5.82
Step-by-step explanation:
0.582 x 10
=> Shift the decimal place by 1
=> 5.82
The required simplified value of the product is 5.82 and the value of 2 in the expression is 0.01 times.
To determine the value of 2 in the product of 0.582 times 10.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
According to the question,
Product = 10 * 0.582
Product = 5.82,
Where 2 is located at the thousandth place,
So, the value of 2 in 5.82 is 0.01 times of 2.
Thus, the required simplified value of the product is 5.82 and the value of 2 in the expression is 0.01 times.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ2
I just need help with #15 … can someone please help me
Answers
Answer:
450
Udjdjdjdndkdkdkdjejeud
A mix weighs 38 pounds.the mix is 80% sand by weight.about how many pounds of sand are in the mix???
PLZZZ HELPP MEE RNNN
Answers
bring the decimal over 2 places, and you get 30.4
80% of 38= 30.4 so there is 30.4 lbs of sand in the mix
Marta Collected 363 cans die go collected 295 cans how many cans marta And diego Collect
Answers
Answer:
658
Step-by-step explanation:
7k -2(3k + 1) - 9
Y’all I need help.
Answers
Answer:
k - 11
Step-by-step explanation:
7k - 2(3k +1) - 9
So first we start by multiplying out the brackets. Multiply 2 by 3k and 1 then it becomes:
7k - 6k + 2 - 9
Then collect like terms subtract 6k from 7k and 9 from 2:
k - 11
HOPE THIS HELPED
( show your work ) Find the total cost of 6 puppies if each pull-ups coast $250
Answers
Answer: $1500
Step-by-step explanation:
Given information
Number of puppies = 6
Cost of each puppy = $250
Given expression deducted from the question
Total cost = number of puppies × cost of each
Substitute values into the expression
Total cost = 6 × 250
Simplify by multiplication
Total cost = [tex]\boxed{1500}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Work
If one Cost $250 , and we need to fine the total of 6 puppies. So it 250 times 6 , then you will get the answer 1500
The total cost of 6 puppies is $1500
Question 13 of 23
If f(x) = 3x - 15, what is f(4)?
A. 3
O B. -8
O C. 12
O D. -3
Answers
Answer:
f(4) = 3×4 - 15
f(4) = 12-15 = -3
Answer : D. -3
...........
Answer:
D.-3
Step-by-step explanation:
f(4)=3•4-15
=12-15
=-3
I just need help with #16 … can someone please help me
Answers
Answer: it goes up like 10,20,30,40
Step-by-step explanation:
researcher investigated whether the type of distraction (text message, app notification, no distraction) during a brief lecture influenced memory. The experiment was conducted with college students aged 18-23. Identify the independent variable(s).
Answers
Answer:
The independent variables are the students.
Step-by-step explanation:
It is the students because nothing else is independent, everything else is either dependent or not important to the question.
step by step
-5x-y=12
x+y=4
-6x+9y=11
Answers
Answer:
1. x = -12+y / 5 , y = -12-5x
2. x = 4 - y , y = 4 - x
3. x = -11 - 9y / 6 , y = 11 + 6x / 9
( for the numbers in fractions such as the x value for #1 and x & y value for #3, put the negative sign in front of the fraction, not the number okay? )
Step-by-step explanation:
-5x - y = 12---> -5x - y = 12 -5x - y = 12
= -5x - y = 12 = +5x +5x
+y +y ---------------------
--------------------- -y = 12 + 5x
-5x = 12 + y /-1 /-1
/-5 /-5 ----------------------
--------------------- y = -12-5x
x = -12+y / 5
-------------------------------------------------------------------------------------------
x + y = 4---> x + y = 4 x + y = 4
= -y -y = -x -x
--------------------- ----------------
x = 4 - y y = 4 - x
--------------------------------------------------------------------------------------------
-6x + 9y = 11-----> -6x + 9y = 11 -6x + 9y = 11
= -9y -9y = +6x +6x
------------------------------ ------------------------
-6x = 11 - 9y 9y = 11 + 6x
/-6 /-6 /9 /9
------------------------------- --------------------------
x = -11 - 9y / 6 y = 11 + 6x / 9