Answer: x = 40
Step-by-step explanation:
3x ÷ 8 = 15
Multiply 8 in both sides
3x = 120
Divide both sides by 3
x = 40
Ahmad run 5 kilometres. If he completed 15% of the race. How many kilometres is the race?
Answer:
x = 33.33 kilometers
Step-by-step explanation:
you could make use of the percent, base, and rate formula here. we know that 15% is the rate, 5 kilometers is the percent, therefore what we are looking for is our base.
[tex]\frac{percent}{base} =\frac{rate}{100}[/tex]
[tex]\frac{5}{x}=\frac{15}{100}[/tex] ; cross multiply.
15x = 500
x = 33.33 kilometers
therefore, the race is 33.33 kilometers.
Answer:
33.33
Step-by-step explanation:
15%/100 and 15%=5KM 5=15% so make it 1% 5÷15=0.3333..... = 1% therefore time it to 100×0.3333 (1%) = 33.33KM is the total race KM
A boat traveled 308 miles each way downstream and back. The trip downstream took 11 hours. The trip back took 22 hours. Find the speed of the boat in still water and the speed of the current.
Answer:
speed of boat is 12 miles per hour and the speed of current is 9 miles per hour
Step-by-step explanation:
D-13=6
F-26=12
M+18=109
56+k=231
How do you solve these with steps
Answer:
D=6+13=19
Step-by-step explanation:
F=26+12=38
M=109-18=91
k=231-56=175
SOMEONE PLEASE HELP EXPLAIN HOW TO DO IT TOO
Answer:
honestly skip it
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
you need to add all the numbers, remember that the total number is 360 then minus your answer that you got by 360
Points A, B, C, and D are vertices of a square. Point E is inside the square. Explain how to tell whether point E is closer to A, B, C, or D.
Answer:
To determine if a point E inside a square is closer to any of the vertices of the square we have to determine the length of the diagonals between the point E and the vertices of the square i.e. AE, BE, CE, DE
The diagonal can be determined by applying Pythagorean's theorem
Step-by-step explanation:
To determine if a point E inside a square is closer to any of the vertices of the square we have to determine the length of the diagonals between the point E and the vertices of the square i.e. AE, BE, CE, DE
The diagonal can be determined by applying Pythagorean's theorem
Which of the following is a pair of events which are dependent on one another?
a. observing rainfall in two different cities
b. drawing a pair of cards from a deck
c. putting on a pair of pants and a shirt without looking at them
d. rolling two dice with the same number of sides
Answer:
I think it's B
Step-by-step explanation:
because you won't draw the same card twice because you took that card out of the running
hope this helps sorry if I'm wrong
Putting on a pair of pants and a shirt without looking at them are pair of events which are dependent on one another
What is Probability?Probability is a branch of mathematics which deals with the occurrence of a random event.
Drawing a certain card from a deck probability depends on whether or not another card has been drawn previously, as it changes the number of cards remaining in the deck and the likelihood of drawing a certain card.
Drawing a pair of cards from a deck is the pair of events which are dependent on one another.
Hence, putting on a pair of pants and a shirt without looking at them are pair of events which are dependent on one another
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Which set of ordered pairs represents a function?
o {(6,5), (-5,4), (5, 7), (6, -8)}
o {(2, 1), (5,-6), (8,-5), (4, -6)}
{(4,-5), (-7,3), (-7, -8), (-5, -4)}
o {(6,-1), (-7,0), (6,3), (-2,4)}
Find (8.4×108) ÷ (1.2×103). Express your answer in scientific notation.
Answer: 7.33980582 x 10^0
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. The sign of the exponent will depend on the direction you are moving the decimal.
The expression in scientific notation is 7 ×10^5
What is the basic arithmetic operations?The four basic mathematical operations are Addition, subtraction, multiplication, and division.
Given that the terms are;
(8.4×10^8) ÷ (1.2×10^3)
Step 1: Divide the numerical parts:
8.4 ÷ 1.2 = 7
Step 2: Subtract the exponents:
10^8 /10^3 = 10^5
Now Putting the numerical part and the exponent together, we get:
7 ×10^5
Hence, the result of the expression in scientific notation is; 7 ×10^5
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I am stuck at this please help me
Answer:
2/7
Step-by-step explanation:
This is easy! No need to over think it btw!
1) whenever you divide by a whole number such as in this case;4. You need to put a 1 under 4... like this: 4/1 (so it can become a fraction!)
2) Use KEEP, CHANGE, FLIP when you are dividing fractions!
8/7 --> you keep that number
÷ ---> × = you change the division sign into multplication sign
4 ---> 1/4 = you put 1 over 4 and flip it which you get from 4/1 --> 1/4
3) Your would look like this....
8/7 * 1/4 = ?
4) Muliply horizontally; 8 * 1 = 8 , 7 * 4 = 28
5) You get 8/28 Don't forget to simplify!!!
6) 8/4 / 32/4 = 2/7
ALSO, here's an example of KEEP, CHANGE, FLIP:
HELP i’m having a hard time doing this, please
Answer:
<2 <4 <5
Step-by-step explanation:
When two lines are parallel and crossed by a transversal, the opposite interior angles are congruent.
can someone help me this is due soon
Answer:
30
Step-by-step explanation:
3 + 8 + 7 + 2 + 6 + 4 = 30
good luck, i hope this helps :)
HEEEEEEELPPPPP? What is the equation of the line in y=mx+b format?
Answer:
y = 2x+2
Step-by-step explanation:
Answer:
y = 2x + 2Step-by-step explanation:
Find the y-intercept first, then, from that point, go tide over run to find your slope. This line has a positive slope, so count up two and over one (2/1). After that, input what data you've collected into your equation (y = mx + b) and you'll have your answer.
if i had 34567898754123179000364299964 cakes and i ate with my friends 276543234589986499 then how many do i have left?
Answer:
u have diabetes dawg
Step-by-step explanation:
can i please have help
Answer:
y = - x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, 1) and (x₂, y₂ ) = (0, - 1) ← 2 points on the line
m = [tex]\frac{-1-1}{0+2}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1
The line crosses the y- axis at (0, - 1 ) ⇒ b = - 1
y = - x - 1 ← equation of line
Answer:
y= - x -1
Step-by-step explanation:
ran it through Desmos
I can't find a way to expllain
it if i would put y= - 1 (becaues remember -1 is where the lines intersected with the y axis)
all there would be was a straight
line across -1 but since its goin down 1
you need the - x to give it a negative tilt
how u UNderstan
i got to hurry so i kinda didnt have time
Answer:
b
Step-by-step explanation:
Slope m
2.
y-intercept b = ?
=
Equation ?
-
Answer:
slope: 2
y- intercept: 60
equation: y= 2x + 60
Answer:
y=3
2x+3 ^&^^^^^^////£¥¥
Ayúdenme con estos problemas :(
Need help please
What are some similarities and differences of the Civil Rights Movement and the Black Lives Matter Movement?
Answer:
The black lives matter movement was a reason to tell the people that we are still all the same even though we don't have the same colored skin or aren't the same gender or we dont believe in the same beliefs.
Where as the civil rights movement was to clarify that blacks and whites males and females have the same rights.
4. y = 94(0.75) *8 is an example of exponential growth
O True
O False
Answer:
false
Step-by-step explanation:
What is the solution of the system of equations? y=2x+2 y=4x-2
A necklace is on sale for 40% off. the original price of the necklace is 168.50 what is the sale price on the necklace
Answer:
$67.4
Step-by-step explanation:
Answer:
$101.1
Step-by-step explanation:
What is the arithmetic mean of the following numbers? 9, 10, 6, 5, 69,10,6,5,6
Step-by-step explanation:
First count the numbers how many they are
there are 9 numbers
Then do the sum of all these numbers
9+10+6+5+69+10+6+5+6/9 126/9 - 14Answer:
13
Step-by-step explanation:
i dont know u tell me
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5500 to rent trucks plus an
additional fee of $175.50 for each ton of sugar. The second company charges $4995 to rent trucks plus an additional fee of $200.75 for each ton of sugar.
Consider the system of equations below.
4x – 8y = 12
11x + 7y = 33
Answer:
x = 3
y = 0
Step-by-step explanation:
I really need help
8.
On what intervals are the function's values positive?
10.
What are the zeros of the function?
Answer:
See step by step
Step-by-step explanation:
To find if a function intervals are possible, make sure the points are above the x axis.
The graph is getting positve around x=-3 but it isn't positive yet.
The graph is positve until x=-1
The graph becomes positive again again at x=2 and is positive infinitely forever.
So let set up our interval
We are going to start at -3 since that where it start getting positive, we then going to use the greater than sign since it get positve as we go to the right as of right now. We use the greater than becuase we are not going to include -3 as our solutions.
We then use a less than sign since the answer must be less than -1 becuase around-1 it start getting negative.
It becomes positive again at x=2 so since we going to left to right use the greater than sign becuase we are not including 2.
It infinitely becomes positive so our interval is x must be cause greater than w becuase it can be any interval greater than two.
[tex] - 4 > x < - 1[/tex]
and
[tex] 2 < x[/tex]
The roots or zeroes are the x intercept of the graph,(when y=0, what is the x value.)
The x intercepts are -3 and 2.
WILL GIVE BRAINLIESTTT
Answer: ALL CREDIT TO THE GUY BELOW IT'S C
Sp-by-step explanation:
Answer:
k=0.12
Step-by-step explanation:
what is the "input" of a function
Mrs. Williams wants to know how long it will take an investment of $450 to earn $200 in interest if the yearly interest rate is 8%, paid at the end of each year. Choose the closest answer.
Ryan has a toy car collection consisting of 160 toy cars he keeps on the wall and 340 he keeps in a display case. What percentage of Ryan's toy car collection does he keep on his wall?
Answer:
32%
Step-by-step explanation:
First find the whole, the total number of toy cars:
160 on the wall} + 340 \text{ in display case} = }{500} total toy cars}
160 on the wall+340 in display case=500 total toy cars
Method 1: Set up a proportion
Set up an equation of the form:
whole
part
= }{100}
100
percent
Assign the variable xx to the unknown value:x}=
x=
percent
The question asks what }percent of all the toy cars is 160
Substitute the known values with the numbers given in the problem, and the unknown value with xx:
\frac{\color{red}{160}}{\color{orange}{500}}=
500
160
={100}
100
x
Solve for xx:
100}{160}=
100⋅160=
{500}
500⋅x
Cross multiply
16000}{500}=
500
16000
=
{500x}{500}
500
500x
Divide both sides by 25
{32\%}=
32%={x}
x
Simplify
Method 2: Find percent directly
Find \(160\) out of \(500\) as a decimal:}
Find 160 out of 500 as a decimal:
{160} {500}}=
500
160
=
\,\,0.32
0.32
\text{Convert decimal to percent:}
Convert decimal to percent:
0.32\times100=
0.32×100=
32\%}
32%
Move decimal 2 places to the right
number
percent
160
32%
500
100%
The percentage of Ryan's toy car collection does he keep on his wall should be considered as the 32%.
Calculation of the percentage:Since Ryan has a toy car collection consisting of 160 toy cars he keeps on the wall and 340 he keeps in a display case.
So here the percentage be like
[tex]= 160 / (160 + 340)[/tex]
= 32%
Hence, The percentage of Ryan's toy car collection does he keep on his wall should be considered as the 32%.
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Annie said that she simplified the expression 6.5(x+0.5x+1) by writing the equivalent expression 6.5x+3.25x+6.5.
Answer: No although the expressions are equivalent by the distribute property, it is not in simplest form because when we combine 6.5x and 3.25x as they are like terms the simplified expression is 9.75x + 6.5
Step-by-step explanation: hope this helps