Answer:
x-2=(-2)x
Step-by-step explanation:
Dad is twice as old as Jon. Grand-Pa is seven years older than three times Jon's age. The sum of their age is 145 years. How old is Grand-Pa?
pls help i will give the brinlist:0
Step-by-step explanation:
let jon age be x
dad age is 2 of x i.e 2x
grandpa age is 7 + 3(x)
The sum of jon dad and grandpa age is 145 i.e
x + 2x + (7+3x) = 145
3x +. 7 + 3x = 145
6x = 145- 7
6x = 138
divide both sides by 6
x = 23
jon age is 23
while
grandpa age is
7 + 3(x)
7 + 3(23)
7 + 69
76.
Complete the table below to find solutions to the linear equation y=5x−5.
Use parentheses when entering ordered pairs and do not enter spaces between numbers
The solution to the equation y = 5x - 5 is given by the ordered pairs
( 0 , -5 ) , ( 1 , 0 ) , ( 2 , 5 ) , ( 3 , 10 ) , ( 4 , 15 )
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
y = 5x - 5 be equation (1)
On simplifying the equation , we get
Substitute the value of x = 0 in the equation , we get
y = 5 ( 0 ) - 5
y = 0 - 5
y = -5
So , the ordered pair is ( 0 , -5 )
Substitute the value of x = 1 in the equation , we get
y = 5 ( 1 ) - 5
y = 5 - 5
y = 0
So , the ordered pair is ( 1 , 0 )
Substitute the value of x = 2 in the equation , we get
y = 5 ( 2) - 5
y = 10 - 5
y = 5
So , the ordered pair is ( 2 , 5 )
Substitute the value of x = 3 in the equation , we get
y = 5 ( 3 ) - 5
y = 15 - 5
y = 10
So , the ordered pair is ( 3 , 10 )
Substitute the value of x = 4 in the equation , we get
y = 5 ( 4 ) - 5
y = 20 - 5
y = 15
So , the ordered pair is ( 4 , 15 )
Hence , the equations are solved
To learn more about equations click :
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X=y
x+2y=3
Substitution
Answer:
X=y
x/y+2=3 because
Y+Y+Y=3 so
X=Y+Y+Y=3
Answer:
No se
Step-by-step explanation:
pero okueuekdnfjdbebf
20 points! ill give brainiest if you explain
The percent increase from 18 to 26 is about __%.
Answer:44.44%
Step-by-step explanation:Take the absolute value of the difference fof the two and then divide by the first number:
y=2x^2-8x
find a b and c then find the vertex then graph it
Answer:
y=2x2−8x
y=2x2−8x
Step-by-step explanation:
Xmin:
-10
Xmax:
10
Ymin:
-10
Ymax:
10
If 2/5 of the 200 flowers bloomed how many flowers did not bloom?
i need help please and thanks
Answer:
Step-by-step explanation:
1.) 5
2.) 32
3.) 14
4.) 16
It's the associative property. One way to remember the associative property is that the numbers don't change, but the location of the numbers change.
Find a cubic function with the given zeros.
3, -4, 7 (5 points)
f(x) = x3 - 6x2 - 19x + 84
f(x) = x3 - 6x2 - 19x - 84
f(x) = x3 + 6x2 - 19x + 84
f(x) = x3 - 6x2 + 19x + 84
Step-by-step explanation: its a+b which equals 182
Put Answer below....
helpppp please it’s urgent
Answer:
D
Step-by-step explanation:
Just put the functions over each other and subsitute the values from the functions. The answer should be D if you just sub in the value for f(n) and g(n) respectively.
I just need to make sure my answer is correct :)
Answer:
Its positive
Step-by-step explanation:
3x - 5 = -3
3x = 2
x = 2/3
2/3 is positive
a store bought 150 toys at a cost of $8 each, the store sold all the toys at a percent markup of 35%. find the total selling price
HELPPPPP pleaseeee!!!! THIS IS URGENT
Answer:
look at the step by step explanation
Step-by-step explanation:
hey! keep calm okay? i got u.
Okay so for a pack of 12 confetti eggs, you pay $2.88. to find the unit price, or price for 1 egg, you just take 2.88 divided by 12 (which i already did) and you get 0.24. so the price for 1 confetti egg is $0.24 or 24 cents.
James reads 520 words in 2 minutes. Luke reads 960 words in 5 minutes. All we need to find out is how many words can they read in 1 minute? All ewe do is take 520 divided by 2, and you get 260. Then you take 960 divided by 5, and you get 192. so the rates they read at is 260 wpm and 192 wpm.
A shipping and handling fee is 35.00 right? so what you want to find is “35.00 is what percent of 437.50?” and if you think about it and go through it, 35 is 8% of 437.50. so 8% of the total is the shipping and handling fee!
good luck! i hope this helped!
help me pls I really have to get this done ill give brainliest
Answer:
ok thx
Step-by-step explanation:
Find the measure of all the indicated angles.
Help please !!
-72 = 8d what does d =
Answer:
Step-by-step explanation:
8d=-72
d=-9
Please help! Will give brainliest. What two numbers are being multiplied above and what is their product?
40
800
500 30
(there is a picture.) Please help!!!
1st one on top is 100 and 3rd one on top is 6.
-1.8(3-1.4h) simplify the expression
Answer:
-5.4 + 2.52h
Step-by-step explanation:
I need help
Only Answer
Answer:
40%
Step-by-step explanation:
Each box is worth 20%
You know this because the entierty of the box is 100% and it is divided into 5 groups 100 divided by 5 is 20, thus each box is worth 20%.
3(2x+1)+2(x-4)
Helpppp
Answer:
8x+9
Step-by-step explanation:
3(2x+1)+2(x+4)
6x+1+2x+8
8x+9
Answer:
8x-5
Step-by-step explanation:
6x+3+2x-8
You just have to add like values together.
I really do not get this at all and need help please
Answers these two for 5 stars and brainlist and a thanks
a. Dilation of 2nd equation by a factor of 12
b. The systems have the same solution, as dilations do not affect overall coordinates, changing side lengths but not angles
The measure of an angle is seven times the measure of its supplementary angle. What is the measure of each angle?
Step-by-step explanation:
7x= 180-x
7x+x= 180
8x= 180
x= 22.5
the angle is 22.5
its supplementary angle is 157.5
I need help please !! I'll give brainliest ♥
length of edges in A: length of edges in B = 3:5
The perimeter of A is 345 mm
Work out the perimeter of B in mm.
Answer:
575 mm
Step-by-step explanation:
The ratio of perimeters is the same as the ratio of sides.
let x be the perimeter of B then by proportion
[tex]\frac{3}{345}[/tex] = [tex]\frac{5}{x}[/tex] ( cross- multiply )
3x = 1725 ( divide both sides by 3 )
x = 575
Then the perimeter of B is 575 mm
PLZ HELP Word Problems on the system of equations:
The sum of two numbers is twelve and the difference of two numbers is -4. Find these two numbers.
If there are twice the number of nickels”x” then there are quarters”y” and the amount of money is 1.75. Find the number of each coin.
Answer:
let the two number be x and y then,
x+y=12
x-y=-4
-----------
2x=8
or, x = 4 put the value of x in first equation
4+y= 12
or, y=12-4
or, y= 8 hence the two number is 4 and 8
Find x? Please can you help me explain.
Thank you
Answer:
root3/ root2
Step-by-step explanation:
since this is a special right triangle (45, 45, 90) we can use right triangle rules. Basically, C in my photo is equal to the hypotenuse while A and B are equal to the sides. You can substitute your hypotenuse into the formula I gave you to find x.
B = C / root2
x = root3 / root2
hope this helped a little bit
5x+8=2x -13 ?
i need help please
Answer:
x=-7
Step-by-step explanation:
Alrighty. 5x+8=2x-13. Lets do -2x on both sides. We'll get 3x+8=-13. Then lets subtract 8 from both sides. We'll get 3x=-21. Divide by 3 and we'll get x=-7. Hope that makes sense.
Answer:
i think the answer is 7
Step-by-step explanation:
Please help me out fast. And make sure to Write and solve an inequality. Or it isn't right.
Answer:75x+160
8 is the answer exactly 8
Step-by-step explanation:
Answer:
Set variable d for number of days: 75d + 160 < 760; 75d < 600; d < 8. The van has to be rented for less than 8 days for the family to spend less than $760.
Tell whether each function is linear or non-linear. Function A Function B x 0 1 2 3 y 0 1 8 27 y = –x + 5
Answer:
Please check the explanation.
Step-by-step explanation:
The slope-intercept form of the linear function
[tex]y = mx+b[/tex]
where
m is the slopeb is the y-interceptThe graph of y = mx + b is a straight line. Thus, y = mx + b represents a linear function.
Analzing the function y = –x + 5
Given the linear function
y = –x + 5
comparing with the slope-intercept form of linear equation
The slope m = -1
The y-intercept b = 5
Also, the graph of a linear function is a straight line.
Thus,
The function y = –x + 5 represents a linear function.
Analzing the Table Function
x 0 1 2 3
y 0 1 8 27
In order to identify whether the given table represents the linear function or not, we need to make sure the given function has a constant change x and y.
If there is a constant change in x and y, then it would be a linear Function otherwise it would not represent a linear function.
There is a constant change in x values.
i.e.
1 - 0 = 1
2 - 1 = 1
3 - 2 = 1
But, there is NOT a constant change in y.
i.e.
1 - 0 = 0
8 - 1 = 7
27 - 8 = 19
It is clear that the table does not have a constant change in y-values.
Therefore, the table function does not represent the linear function