Answer:
x=17
Step-by-step explanation:
4x=68
Divide each side by 4
x= 17
Regroup the integers
What value of x makes the equation 0.2(16x – 48) = -0.4(x – 3) true?
Are these equations equivalent?
0.8x + 3= 1.8x and 2x =6
Answer:
Yes
Step-by-step explanation:
0.8x + 3 = 1.8x
3 = 1.8x - 0.8x
x = 3
And:
2x = 6
dividing both sides by 2:
x = 3.
hence the two equations are equivalent since they give the same answer.
Justin ran 5.5 miles in 49.5 minutes. On average, how many minutes did it
take him to run one mile?
*PLEASE SOLVE USING EQUATIONS*
How old am I if 200 reduced by 2 times my age is 46?
A) 89
B) 83
C) 77
D) 108
Answer:
C) 77
Step-by-step explanation:
77 times 2= 154
200-154= 46
Suppose Borman earned $148,000 last year. She calculates her self-employment tax by multiplying
$148,000 by 15.3%, which equals $22,644. Is Borman correct? Briefly explain.
Answer:
Yes Borman is correct.
Step-by-step explanation:
Borman moved the decimal point 2 spaces to the left which gave her 0.153
Then she multiplied that by $148,000 to get 15.3% of it which would give her $22,644 so therefore, she is correct.
which expression is equivalent to 6-(-8)
○ -6+8
○ -6+(-8)
○ 6+(-8)
○ 6+8
Answer: 6 + 8
Step-by-step Explanation: When you're adding and subtracting positives and negatives and you see a minus a negative in a problem, you can change it to plus a positive.
So 6 - (-8) can be thought of as 6 + (+8).
Answer:6+8
Step-by-step explanation:
PLSSSSS HURRY I AM TIMED. Dino has 14 coins and 2 one-dollar bills. Which describes the relationship between the coins and the dollar bills?
Dino has 7 times as many coins as he has bills.
Dino has 7 times as many bills as he has coins.
For every 2 bills, Dino has 7 coins.
For every 7 coins, Dino has 14 bills.
Answer:
I believe it's A
Step-by-step explanation:
(^-^) Hope this helps!
Answer:
For every 2 bills, Dino has 7 coins.
Step-by-step explanation:
use multiplication to find all the whole number ratios equivalent to 5 to 11
Answer:
thxfor free points
Step-by-step explanation:
Let |r| = 6 at an angle of 30° and |s| = 11 at an angle of 225°. Which expression represents |r – s|?
Answer:
probably c. the one w cos(165) on the end
Step-by-step explanation:
hope this drawing helps at all~ looks a bit busted but yea
The value of expression is, [tex]|r-s|=\sqrt{284.5}=16.86[/tex]
Sum of vectors :If two vector r and s are present. Then magnitude of resultant of these two vectors are calculated by cosine formula.
[tex]|r-s|^{2}=r^{2} +s^{2} +2|r||s|cos\theta[/tex]
Where [tex]\theta[/tex] is angle between both vectors.
A diagram is attached below.
[tex]|r-s|^{2}=6^{2} +11^{2} +2*6*11*cos15\\\\|r-s|^{2}=36+121+127.5\\\\|r-s|^{2}=284.5\\\\|r-s|=\sqrt{284.5}=16.86[/tex]
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A restaurant makes it barbecue sauce by the gallon but they sell in 12 ounce bottles this week 3 gallons of barbecue sauce are ready to bottle how many fluid ounces of sauce is there
Answer:
3 gallons = 12 ounces
12 x 3 = 36 ounces
I need help !!!!!! Please bZ÷12=9
Answer:
The answer is b=18/z
Step-by-step explanation:
Let's solve for b.
bz/2=9
Step 1: Divide both sides by z/2.
1/2bz/z/2=9/z/2
b=18/z
Answer:
b=18/z
john has 16 red balls and 12 black balls. what is the ratio ( in simplest form) of red balls to black balls
The simplest form of the ratio of red to black balls is 4:3.
What is a ratio?The ratio shows how many times one value is contained in another value.
Example:
There are 3 apples and 2 oranges in a basket.
The ratio of apples to oranges is 3:2 or 3/2.
We have,
Number of red balls = 16
Number of black balls = 12
The ratio of red to black balls.
= 16/12
= 4/3
Thus,
The ratio of red to black balls is 4:3.
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Take a look at the following set of data: 5, 12, 24, 19, 1, 32, 194. What word describes the data point 133?
1.outsider
2.median
3.range
4.outlier
Answer:
Outlier!! I know it sounds like a cat poster but it's true
Step-by-step explanation:
Answer:
median
Step-by-step explanation:
it means average which the average of the set will give you 133
A figure is reflected across the x-axis to create a new figure. Which rule describes this transformation?
O (x,y) → (-x, -Y)
O (x,y) → (y,x)
O (x, y) = (x, y)
O (x, y) =(x, y)
Answer:
f(x) reflected across the x-axis is -f(x)
Step-by-step explanation:
so aka
O (x,y) → (x, -y)
Find the scale factor to map ΔABC onto ΔA′B′C′.
Question 19 options:
A)
3
B)
1∕3
C)
1∕2
D)
4
Answer:
answer is 1/3 so B
Step-by-step explanation:
Earl runs 90 meters in 60 seconds. How many meters does Earl run per second? Earl runs meters per second.
Answer:
1 1/2 meters
Step-by-step explanation:
Answer:
Earl runs 1.5 meters per second.
Step-by-step explanation:
90m/60sec = 1.5m/sec
Fill in the blank.
x 3 x 4 = 84
Answer:
the missing value is 7
Step-by-step explanation:
10+10 Chloe answer
Answer:
20
Step-by-step explanation:
Mary decides to take out a $4,000 student loan this year. If she will pay 10% interest compounded annually, how much will the total loan amount be in four years when she graduates?
Answer 4000+1600= 5600
Step-by-step explanation:
The 10% is $400. 400 times 4 is 1600. So to find the total, its 5600. Mark brainliest if this helped you
Find the value of x that makes u and v parallel
Answer:
3
Step-by-step explanation:
equate the two together to get the value of x
Which transformation represents a reflection over the x-axis?
O (X,Y) - (-x, y)
O(x,y) → (X, -y)
O(x, y) (y,x)
(x, y) - (-y, x)
For the following right triangle, find the size length X. Round your answer to the nearest hundredth
Answer:
The answer would be 10.72
Step-by-step
You already have two side lengths so you use those to find the 3rd length
[tex]A^{2}[/tex]+[tex]B^{2}=C^{2}[/tex]
[tex]A^{2}+9^{2} =14^{2}[/tex]
[tex]A+81=196[/tex]
196-81=115
[tex]\sqrt{115[/tex]
10.72
Joanne signed up for 24 dancing lessons she took 3/4 of the by April and 1/5 of them by May .What part of dancing lesson did she take?
Answer:
[tex]Part = \frac{19}{20}[/tex]
[tex]Lessons = 23[/tex]
Step-by-step explanation:
Given:
[tex]Dancing\ Lessons = 24[/tex]
[tex]April = \frac{3}{4}[/tex]
[tex]May = \frac{1}{5}[/tex]
Required:
Determine the part she took
To solve this, we simply add up the part she took in April and May.
[tex]Part = \frac{3}{4} + \frac{1}{5}[/tex]
Take LCM
[tex]Part = \frac{15 + 4}{20}[/tex]
[tex]Part = \frac{19}{20}[/tex]
Hence, she took [tex]\frac{19}{20}[/tex] of the dancing lesson.
However, to calculate the number of lesson.
We have to multiply [tex]\frac{19}{20}[/tex] by the total dancing lessons.
[tex]Lessons = \frac{19}{20} * 24[/tex]
[tex]Lessons = \frac{19* 24}{20}[/tex]
[tex]Lessons = \frac{456}{20}[/tex]
[tex]Lessons = 22.8[/tex]
[tex]Lessons = 23[/tex] ---- Approximated
evaluate each expression if m equals 3 and n equals 7, 3mn is?
Answer:
63
Step-by-step explanation:3(3)(7)=63
Answer: 3 x 3 x 7 = 63
Step-by-step explanation: I am not sure if this is what you are asking but when a number and a variable and next to each other without any spaces it means that you should multiply them, so, 3 x m is just 3 x 3. Expanding on this, if 3 x 3 x n is equal to 3 x 3 x 7 then you can just multiply 3, 3, and 7 for a total of 63.
please help I begging u
What is the vertex of the graph of the function below?
y= x2 - 10x + 21
O A. (5,-4)
B. (3,0)
O C. (5,0)
OD. (3,-4)
Answer:
Step-by-step explanation:
A. (5,-4)
The vertex of the graph of the function is (5,-4).
The answer is option A.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
To find the vertex of the function y = x² - 10x + 21,
We can use the formula:
x = -b/2a
where a is the coefficient of the x² term, b is the coefficient of the x term, and x is the x-coordinate of the vertex.
In this case,
a = 1 and b = -10, so:
x = -(-10)/(2 x 1) = 5
To find the y-coordinate of the vertex, we can substitute x = 5 into the function:
y = (5)² - 10(5) + 21 = -4
Therefore,
The vertex of the graph of the function is (5,-4).
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dennis estimated the width of the space he has in his kitchen to fit a new refrigerator to be 36 inches. the actual width is 33 inches. what is the approximate percent error?
Answer:
8%
Step-by-step explanation:
Given the following data;
Experimental value = 36 inches
Theoretical value = 33 inches
Percent error can be defined as a measure of the extent to which an experimental value differs from the theoretical value.
Mathematically, it is given by this expression;
[tex] Percent \; error = \frac {experimental \;value - theoretical \; value}{ theoretical \;value} *100[/tex]
Substituting into the equation, we have;
[tex] Percent \; error = \frac {33 - 36}{ 36} *100[/tex]
Note: we would ignore the negative sign.
[tex] Percent \; error = \frac {3}{ 36} *100[/tex]
[tex] Percent \; error = 0.833 *100[/tex]
Percent error = 8.33 ≈ 8%
Find the slope of the graphed line
Answer:
1
Step-by-step explanation:
you do the rise over run, so count how many boxes up it is from one point to the next, then put that over how many boxes to the right it is, and simplify.
ex: 1/1 = 1, 2/2 = 1, 3/3 = 1, etc.
Hope this helps!
I need a person or a tutor that’s willing to get my number to help me with my math and with these questions bc I really need help
Answer:
Slope is -5/3, the y intercept is 5
Step-by-step explanation:
If you want to find cordinates you first have to solve the equation so that it is in the form mx+b=y
solve for y
5x+3y=15
-5x -5x
3y =-5x+15
3y/3 = -5x/3+15/3
y=-5/3x+5
or -5/3x+5=y
Now you know that the slope is -5/3 and the y intercept is 5
Start for 5 on the cordinate plain and go down 5 since it is negative and go to the right 3.
after you get to the bottom right of the graph you go back to 5 and just do the exact opposite of what you did above.
so go up 5 and go to the left 3 and continue until you get to the top left of the graph.