Answers
Answer: The answers are:
6 + 2 = 8
4 + (-1) = 3
Step-by-step explanation:
Add 6 by 2.
Solve for X.
4 + X = 3
To find X, we use the integer rule. We can use this:
Positive and Positive = Positive
Negative and Negative = Negative
Positive and Negative = Both (It depends if the negative or positive is larger than the other)
For this problem, we can use: Positive and Negative = Both.
If we look at the chart, we can see 4 and 3. How can we get 4 + ? = 3? We can use the integer, -1. Since we said, Positive and Negative = Both, we must compare the positive-addend (4) by the negative-addend (-1).
4 is greater than -1
4 > -1
Therefore, X equals -1.
4 + (-1) = 3
Answer: 8, -1
Step-by-step explanation:
The table shows some addition problems. Each column is its own problem, with the first two rows being addends and the bottom row being the sum. Thus, simply do 6+2 to get the first blank(left-to-right), 8. Then, do 4+x=3 to get the second blank, or -1.
Hope it helps :D
Related Questions
I neeeeeeddddd helppppppppppppppp
is this right?
Answers
Answer:
no the answer is 7.....
Answer:7
Step-by-step explanation:
27 divided by 3 is 9.
so
21 divided by 3 will give u the answer which is 7.
Which graph represents a function with direct variation
Answers
Answer:
WHere are the graphs
Step-by-step explanation:
:)
what is the unit rate if 12 inches of snow in 3 hours?
Answers
Answer:
4 inches of snow has fallen rate per hour
therefore the unit rate is 4 inches of snow per hr.
Step-by-step explanation:
Answer:
4 per hour
Step-by-step explanation:
because 12 divided by 3 is 4
Using the property of exponents, what do you need to multiply 10^2 by to get 10^4 ?
Answers
Answer:
We conclude that using the property of exponents, we need to multiply 10² to get 10⁴.
Step-by-step explanation:
Let 'x' be the number we need to multiply 10² by to get 10⁴.
So the expression becomes
[tex]10^2\:\times\:x\:=\:10^4[/tex]
Divide both sides by 10²
[tex]\frac{10^2x}{10^2}=\frac{10^4}{10^2}[/tex]
[tex]\:x=\frac{10^4}{10^2}[/tex]
Apply the exponent rule:
[tex]\frac{x^a}{x^b}=x^{a-b}[/tex]
so the expression becomes
[tex]x=\frac{10^4}{10^2}=10^{4-2}[/tex]
[tex]x=10^2[/tex]
Therefore, we conclude that using the property of exponents, we need to multiply 10² to get 10⁴.
Please help with math! I'm getting pretty confused about solving each system of equations by graphing. Any answers to this?
y = x + 3 , y = 4x - 3
Answers
Answer: x= 2, y= 5
Step-by-step explanation:
put (your aunt’s age a minus 25) in a algebraic expression
Answers
Answer:
Step-by-step explanation:
28 - 25 = 3
Tomic and Brooke make a game of shooting free throws. Each basket is worth 2 1/2 points. Each miss is worth −3/4 points. Out of 30 free throws, they make 16 baskets. What is the correct number of points that Tomic and Brooke scored?
Answers
Why: the missed 14 shots so 14 x 3/4 is 10.5
They made 16 shots so 16 x 2.5 is 40
40-10.5=29.5
Answer:
I did this on a test and got 29.5 points
Step-by-step explanation:
Options:
• Line A
• Line B
• Line C
• Line D
I’ll give you brainlest!!
Answers
Answer:
line D
Step-by-step explanation:
An undefined slope is when the "run" of a line is zero, the line will be vertical. I hope this helps
PLEASE HELP !?
The chess club at a school has 15 members. The number of games won in tournament play this season by each member is listed. What measure of center is most appropriate to use to describe a typical value for the data in this distribution? Explain your reasoning.
Answers
Median
Step-by-step explanation:
Please SHOW WORK I need help
Answers
x⁶
look at the picture
l hope that's help you
Need this ASAP please...
Answers
Answer:
I think x might be 2 i don't know...
Step-by-step explanation:
There you go I hope you get 100% ;)
What is the distance from P to Q?
A. 1 unit
B. 5 units
C. 25 units
D. 7 units
Answers
Answer:
i think it is
Step-by-step explanation:
B.5 units
A music shop charges a deposit of $20, plus a monthly rate of $30 to rent an instrument. For how many months did Avi rent an instrument if he spent a total of $80?
Answers
Answer:A) 2 months
Step-by-step explanation:The base fee is $20.
The monthly rate is $30.
We can represent the number of months with the variable ‘x’.
The equation for this problem would look like this: 20+30x=80l
In words, it would be: base fee + monthly rate*x = $80
A music shop charges a deposit of $20, plus a monthly rate of $30 to rent an instrument. For how many months did Avi rent an instrument. For how many months did Avi rent an instrument if he spent a total of $80
A) 2 months
B) 3 months
C) 4 months
D) 5 months
3x + 4 = 21 solve for x
Answers
Answer:
3x + 4 = 21
3x = 17
x = 5.67
Answer:
In its exact form, the answer you will get is 17/3
Step-by-step explanation:
Move all terms that aren't x terms to the right side.
Hope this helps you! Have a nice evening and good luck!
A department store sells a pair of shoes with an 56.3% markup. If the store bought the pair of shoes for $43.75, what is the selling price to the nearest cent?
Answers
Answer:
The selling price for the shoes will be $68.35
Step-by-step explanation:
An accountant earns 6% simple interest. You want to find the interest earned on $200 after 8 months.
Answers
Answer:
The interest is $12
Step-by-step explanation:
You just put the percent in a decimal form(6%-0.06)Then you multiply 200 with 0.06. And the answer you get is the interest
Hope that helps :)
Matrices C and D are shown below C= 2 1 0 0 3 4 0 2 1 D= a b -0.4 0 -0.2 0.8 0 0.4 -0.6 what values of a and b will make the equation CD = l true?
Answers
The question is incomplete. Here is the complete question
Matrices C and D are shown below:
[tex]C=\left[\begin{array}{ccc}2&1&0\\0&3&4\\0&2&1\end{array}\right][/tex] [tex]D=\left[\begin{array}{ccc}a&b&-0.4\\0&-0.2&0.8\\0&0.4&-0.6\end{array}\right][/tex]
What values of a and b will make the equation CD = I true?
(i) a = 0.5
b = 0.1
(ii) a = 0.1
b = 0.5
(iii) a = -0.5
b = -0.1
Answer: (i) a = 0.5
b = 0.1
Step-by-step explanation: Identity Matrix (I) is a n x n square matrix with the number 1 on the main diagonal and 0 everywhere else.
The question asks for multiplication of matrices, i.e.:
[tex]\left[\begin{array}{ccc}2&1&0\\0&3&4\\0&2&1\end{array}\right][/tex] . [tex]\left[\begin{array}{ccc}a&b&-0.4\\0&-0.2&0.8\\0&0.4&-0.6\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right][/tex]
To multiply matrices, the number of columns of the 1st matrix must be the same as the number of rows of the 2nd.
Matrix C is a 3x3 square matrix and so is matrix D, so, values of a and b:
[tex]2a=1[/tex] [tex]2b-0.2=0[/tex]
[tex]a=\frac{1}{2}[/tex] [tex]2b=0.2[/tex]
a = 0.5 [tex]b=0.1[/tex]
For the equation CD=I be true, a and b has to be 0.5 and 0.1, respectively.
you put $1,200. in a savings account for four years at 5.6%. what is the total amount in the account after the four years
Answers
Answer:
you would have 1,194.4
Step-by-step explanation:
i subtracted.
You drive a car that runs on ethanol and gas. You have a 20 gallon tank to fill and you can buy fuel that is either 25% or 85% ethanol. How much of each fuel should you buy to have 50% ethanol in the tank? Will give brainliest!!!!!!!!!!!!!!!!!!
Answers
Answer:
11.67 gallons of 25% and 8.33 gallons of 85%Step-by-step explanation:
Let the volume of 25% ethanol be x, then volume of 85% ethanol will be (20 - x)
The ethanol content is:
0.25x + 0.85(20 - x) = 20*0.50.25x + 17 - 0.85x = 10-0.6x = 10 - 17-0.6x = -7x = 7/0.6x = 11.6711.67 gallons of 25% ethanol and
20 - 11.67 = 8.33 gallons of 85% ethanol
Estimate the quotient by rounding the expression to relate to a one-digit fact 1275 ÷ 588 A.2 B.3 C.4 D.5
Answers
Answer:
2
Step-by-step explanation:
Round the divisor to the nearest 10 or 100, depending on how many digits are in the divisor.
Round the dividend to the nearest 10, 100, or 1,000 so that all of the digits, except the first one are zeros.
Divide 600 by 30.
Compare your estimate to the exact answer to determine if the exact answer is reasonable.
Simplify:
-(7x-9)
PLEASE HELP ASAP
Answers
Answer:
-7x+9
Step-by-step explanation:
All you are doing is distributing the negative
The equation should now be -7x+9 ( a negative times a negative is always positive)
Make t the subject of the formula.
u = v+ 2t
Answers
9514 1404 393
Answer:
t = (u -v)/2
Step-by-step explanation:
Observe what is done to t:
multiplied by 2v added to the productUndo these operations, starting with the last one and working up the list.
[tex]u = v+2t \qquad\text{given}\\\\u-v=2t \qquad\text{undo addition by subtracting $v$}\\\\\dfrac{u-v}{2}=t \qquad\text{undo multiplication by dividing by 2}\\\\\boxed{t=\dfrac{u-v}{2}}[/tex]
Answer:
[tex]u = v + 2t \\ u - v = 2t \\ t = \frac{(u - v)}{2} [/tex]
t=(u-v)/2 is the right answer.y=x+3
y=x-3
Solve these equations
Answers
Answer:
what is x?
Step-by-step explanation:
Answer:
No solutions
Step-by-step explanation:
what expression is equivalent to 3/5x + 2/5 + 3/5x
Answers
Answer: 3/5x+2/5+3/5x= 1.6
One lap around a track is ½ mile. It takes Bryan ⅛ hour to ride one lap. What is Bryan’s mile per hour?
Answers
Answer:
4 miles per hour
Step-by-step explanation:
Total miles = 1/2
Time taken = 1/8
Miles per hour = 1/2 ÷ 1/8
= 1/2 × 8/1
= 8/2
= 4 miles per hour
Bryan’s mile per hour = 4
4 miles per hour
PLEASE Help me...I'd really appreciate it
Answers
Expand and simplify ([tex]2x^{2}[/tex]+3)(4x+5)-8x([tex]x^{2}[/tex]-2)
Answers
Answer:
2x(5x + 14) + 15
Step-by-step explanation:
Given: (2[tex]x^{2}[/tex] + 3)(4x + 5) - 8x([tex]x^{2}[/tex] - 2)
(2[tex]x^{2}[/tex] + 3)(4x + 5) - 8x([tex]x^{2}[/tex] - 2) = 2[tex]x^{2}[/tex](4x + 5) + 3(4x + 5) - 8x([tex]x^{2}[/tex] - 2)
= (8[tex]x^{3}[/tex] + 10[tex]x^{2}[/tex] + 12x + 15) - 8[tex]x^{3}[/tex] + 16x
= 8[tex]x^{3}[/tex] + 10[tex]x^{2}[/tex] + 12x + 15 - 8[tex]x^{3}[/tex] + 16x
collecting like terms to have,
8[tex]x^{3}[/tex]- 8[tex]x^{3}[/tex] + 10[tex]x^{2}[/tex] + 12x + 16x + 15
10[tex]x^{2}[/tex] + 28x + 15
Thus,
(2[tex]x^{2}[/tex] + 3)(4x + 5) - 8x([tex]x^{2}[/tex] - 2) = 10[tex]x^{2}[/tex] + 28x + 15
= 2x(5x + 14) + 15
A forest covers 68.000 acres. A survey finds that 0.6% of the forest is old-growth trees. How many acres of old-growth trees are there?
Answers
Answer:
68.000 acres x 0.6% = 408 acres
Step-by-step explanation:
John is buying toy cars. If each car is 0.35 cents, how many cars can John buy with 1,000 dollars?
Answers
Answer:
He can buy 2857 cars.
Step-by-step explanation:
In order to find the amount he can buy, you need to divide 1,000/.35. This equals 2857.14 but because you cannot buy .14 of a toy car, you round down to 2857 which is the end answer. Hope this helps :)
Answer: 2857 cars
Step-by-step explanation:
HELP PLS PLS ILL MARK U BRAINLIEST
Answers
Answer:
angle XYW = -20x + 155
Step-by-step explanation:
angle XYZ = 150
angle WYZ = 20x - 5
angle XYW = y
angle XYZ = 20x - 5 + y
150 = 20x - 5 + y
150 + 5 = 20x + y
y = -20x + 155
So angle XYW = -20x + 155
150=-20x-5
angle XYW=-20x+155
