Answer:use math(way
Step-by-step explanation
It help
Answer: 2 miles per hour
Step-by-step explanation: Reduce the common factor which would be 5 and then you divide and you get 2
. FOIL the following expression
(x – 4) (x + 6)
x^2+2x-24 is the correct answer
URGENT PLEASE HELP!
Explain the steps you would take to graph 2x-3y>15.
Answer:
y>5−2x/3
Step-by-step explanation:
Help please I need help on this problem,appreciate it :)
Rewrite (squareroot n^5 p^8)
as an exponential expression
Answer:
the answer is the option : D
what percent of 56.25$ is 11.25$
Answer:
3%percent of $375 is $11.25 and 20% of $56.25 is $11.25 .
Step-by-step explanation:
a motorboat takes 5 hours to travel 150 Miles going Upstream. the return trip takes 3 hours going Downstream .what is the rate of the boat in still water and what is the rate of the current ?
Answer:
Speed of boat in still water = 40 mph
Rate of current = 10 mph
Step-by-step explanation:
Let the speed of boat in still water be x & let the speed of the stream be y.
Total Distance = 150 miles
Time taken to travel during upstream = 5 hrs
Speed of the boat during upstream = [tex]\frac{150}{5} = 30\:mph[/tex]
Speed of boat during upstream can be represented as [tex]x - y = 30[/tex] because the boat is moving in the opposite direction of flow of stream.
Time taken to travel during downstream = 3 hrs
Speed of boat during downstream = [tex]\frac{150}{3} = 50\:mph[/tex]
Speed of boat during downstream can be represented as [tex]x+y=50[/tex] because the boat is moving in the same direction of flow of stream.
We got a pair of linear eqns. Let [tex]x-y=30[/tex] be eqn.1 and [tex]x+y=50[/tex] be eqn.2 . Using substitution method ,
From eqn.1 , [tex]x-y=30[/tex]
[tex]=> x = y + 30[/tex]
Putting 'x' in eqn.2 , [tex]x + y = 50[/tex]
[tex]=> y + 30 + y = 50[/tex]
[tex]=> y + y = 50-30[/tex]
[tex]=> 2y = 20[/tex]
[tex]=> y = \frac{20}{2} = 10\: mph[/tex]
Putting y in eqn.1 ,
[tex]x - 10 = 30[/tex]
[tex]=> x = 30 + 10 = 40 \:mph[/tex]
Hence , the speed of boat in still water is 40 mph and speed of stream is 10 mph
2y-3k when y=8 and k=6
Answer:
-2
Step-by-step explanation:
2(8) - 3(6)
16 -18 = -2
Answer:
-2
Step-by-step explanation:
If y = 8, then 2y = 8 times two, so 2y = 16
If k = 6 then 3k = 6 times 3, so 3k = 18
16 - 18 = -2
Hope this helps :)
Which inequality is graphed on the coordinate plane?
Answer:
B
Step-by-step explanation:
The slope is 4/1 which equals 4
the y int is 2
this gives us 4x+2
the line is dotted which mean there is no equal sign with the inequality
The shaded area is above the line, meaning y is greater
3 x + 2 y=8
solve for y
Answer:
y=4-3x/2
Step-by-step explanation:
move 3x to the other side by subtracting 3x on both sides
2y=8-3x
divide by 2 on both sides:
y=4-3x/2
A ladder is 59 inches tall. How tall is it in feet and inches?
Answer:
4 feet 11 inches
Step-by-step explanation:
all you need to do is see how many groups of 12 is in 59
its 4 because 5 times 12 is 60
12 times 4 is 48
59-48= 11
4 feet 11 inches
Brainliest would be appreciated!
If you bought a stock last year for a price $21, and it has risen 11% since then, how much is the stock worth now, to the nearest cent?
Answer:
$23.31
Step-by-step explanation:
$21 x 1.11 = $23.31
I need help I’m failing
Answer:
D
Divide both by 3
Step-by-step explanation:
Is blood pressure a discrete or continuous variable?
Answer:
discrete
explanation:
Continuous keeps going but for blood pressure it has to stay in a certain zone.
Meryl needs to cut down 10.5 trees for every 5 cabins she builds.
Complete the table using equivalent ratios.
Number of trees Number of cabins
10.5 5
__ 3
__ 7
Answer:
for seven cabins it should be 14.7 trees, im not sure about 3 cabins, sorry :(
Answer:
3) 6.3
7) 14.7
Step-by-step explanation:
Use ratios to solve the table
10.5/5 = x/3
cross multiply
31.5 = 5x
x = 6.3
10.5/5 = x/7
73.5 = 5x
x = 14.7
need help on this pleaseeee!! as soon as possible!!!
solve for x 8/x +1/5 = 3/x
Answer:
I think x=-25
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of wc
The length of each side of a square increases by 2.5 inches to
original square was
inches.
Question serial: FIB-3A42-E542-4CD6
P
Answer:
me dont know solve it your self HAHAHHH loser
Step-by-step explanation:
A circle has an arc whose measure is 80° and whose length is 88. What is the diameter of the circle?
Answer:
length of arc=80/360×2πr
88×360=80×2×22/7×r
31680×7/(80×2×22)=r
r=221760/3520=63
diameter=2r=2×63=126
y=(1/3)•(16)x
a.Exponential growth
b.Exponential Decay
Answer:
the answer should be A for this question
if you have 1 ball and it takes 8 balls to move that 1 ball. How many balls will it taked to rotate back to the first ball?
Answer:
Step-by-step explanation: why do u need 8 balls to move 1 lolwut
Please help me I need it!!!!
Answer:
d
Step-by-step explanation:
because it starts off under the water which is -24 then you add a positive 24 to get to sea level
Answer:
the distance above sea level after increasing 24 meters from a depth of 24 meters below sea level
Step-by-step explanation:
equation- -24m + 24m = 0
the answer to the first one is -10 (-5 - 5 - -10)
the answer to the second one is 1,000 (0 + 1,000 = 1,000)
the answer to the third one is 10 ( 20 - 10 = 10)
the answer to the fourth one is 0 (-24 + 24 = 0)
Randy owns 120 baseball cards, and Phil owns 95 baseball cards. The number of baseball cards Davis owns is equal to 5 times the difference between Randy's number of cards and Phil's. How many cards does Davis own?
A. 25 cards
B. 30 cards
C. 125 cards
D. 150 cards
Answer:
125
Step-by-step explanation:
First you want to find out the difference between Randy and Phil:
120 - 95 = 25
Then, multiply that by five:
25 × 5 = 125
Hope this helps
Answer:
Davis owns 125 cards
Step-by-step explanation:
120 - 90 = 25 x 5 = 125
the point 2,1 is the turning point of the graph with the equation y=x^2+ax+b
Answer:
14/12/2019 — However, we know that the line passes through two known points with x and y coordinates. ... The equation of a curve is y = x^2 + ax + b where a and b are integers. ... x2 (or second order polynomial) graphs are symmetrical about their turning point ... Therefore, we know that the line intercepts the x-axis at (-1,0) and (5,0).
Step-by-step explanation:
Answer:
a = -4, b = 3
Step-by-step explanation:
sorry, im a bit late but hoping to help others that need the answer.
when you complete the square for a quadratic, you r answer can come in the form (x+p)^2+q.
in this form, p is the opposite of the x coordinate.
and q is the same as the y coordinate.
to get p and q from this, we find the opposite of the x coordinate and use the y coordinate we are given, and plug them into this equation.
we get: (x-2)^2+1
lets complete the equation now.
(x-2)^2 = x^2 - 4x + 4, then add the one we left out = x^2 - 4x + 5.
now our equation is in the same format as y=x^2+ax+b so we can just pull out the A and B which gives us:
A = -4
B = 5
if i am wrong please feel free to correct me, ty.
what is the solution to the system of equations?
A. (-7, -6)
B. (-6, -7)
C. (0, 2)
D. (2, -5)
Answer: B.
Step-by-step explanation:
What is the value of the expression (0.4)2
Need help with question 2
Solve the system of linear equations by graphing. Check your answer.
Pls anser thisss plesseee
Answer:
duh
Step-by-step explanation:
bc it’s not
There are 18 chocolates in Swee Tuth's box, 2 each of 9 flavours.
She likes only 6 of the flavours. If she picks a chocolate at randon
what is the probability of her getting one she doesn't like?
Answer:
20% because if there's six different chocolates she likes and if she picks random thers a possibility of it
Write an equation that represents a vertical shrink by a factor of 1/4 of the graph of g(x)=|x|
Jimmy is eating appetizers that have 120 calories each. He only plans to eat 550 calories overall.
Write an inequality and determine the most appetizers he can eat without exceeding the limit.
Answer:
4
Step-by-step explanation:
Jimmy is eating appetizers that
have 120 calories each. He only
plans to eat 550 calories overall.
Write an inequality and determine
the most appetizers he can eat
without exceeding the limit.
He can eat 4.
HELP ME ILL GIVE Yu 30 POINTS
Step-by-step explanation:
[tex]\tt{ 7+3×6-9 }[/tex]
[tex]\tt{ 7+18-9 }[/tex]
[tex]\tt{ 25-9 }[/tex]
[tex]\tt{16 }[/tex]
Answer:
[tex]7 + 3 \times 6 - 9 \\ = 7 + 18 - 9 \\ = 25 - 9 \\ = 16[/tex]
16 is the right answer.
Pls help and show workings due ASAP
Answer:
A
Step-by-step explanation:
By triangle inequality,
L < 15+6
15 < L+6
6 < L+15
Solving these, we get 9 < L < 21.
Only 10 falls within the range.
The answer is therefore 10cm i.e. A.