Answer: she bikes for 10 hours and runs for 6
Step-by-step explanation: suppose that x equals the amount of hours she runs and y equals the amount of hours she bikes.
6x+ 18y=216
x+y=16
(This is your system of equations)
(Starting with the second equation, x+y=16)
y=-x +16 (move x to the other side by transposition)
Now that you have something that equals Y you plug it in to the other equation:
6x+18(-x+16)=216
(Start solving)
6x-18x+288=216 (used distributive property)
-12x+288=216 (Combine like terms)
-12x=-72 (use transposition again)
x=6 (divide to get x by itself)
Now you plug in the value of x into your equation for the value of “y”, y=-x+16,
Y=-6+16 (plugged in the value of x)
Y=10 (solved the equation -6+16)
If f(x)=x+5, what is f-'(x)?
Step-by-step explanation:
Given
f(x) = x + 5
Let
y = f(x)
y = x + 5
Interchanging the roles of x and y we get
x = y + 5
y = x - 5
f^-1 (x) = x - 5
Hope it will help :)
kwasi thought of a number, multiplied it by7/2 and added 16 to the results.if the final answer was 30.what number did he think of
Answer:
4
Step-by-step explanation:
represent the number he thought of with x[tex] \frac{7}{2} x + 16 = 30[/tex]
multiply through with the LCM which is 2[tex]2 \times \frac{7}{2}x + 16 \times 2 = 30 \times 2 [/tex][tex]7x + 32 = 60 [/tex][tex]7x = 60 - 32[/tex][tex]7x = 28[/tex][tex] \frac{7x}{7} = \frac{28}{7} [/tex][tex]x = 4[/tex]Which of the following is an example of polynomial function?
Answer:
it's not showings the "following" part
If the m angle 5 is 63 , find the measure of angle 3.
Answer:
Hey this isn’t the answer, sorry
Step-by-step explanation:
I just need this answer to so let me know if you get the answer Thank you
Answer:answer is 117
Step-by-step explanation:
N/A
please help me !!!!!!
Answer:
Step one
Step-by-step explanation:
she forgot to do -4×-3 in the parentheses
agree or desagree ?
Answer:
agree
Step-by-step explanation:
help me now please hurry. inna rush
Answer:
A
Step-by-step explanation:
Helppppppppppppppppp
yes
Step-by-step explanation:
i think............
Answer:
no
Step-by-step explanation:
1=x and 9=y so 1+8=9 and 9=9
If you are standing 300ft from a building and the building is 200 ft tall, what is the angle of elevation formed with the ground when you look up and see the top of the building.
Plz help me out
Plzzzz help me plzzz help
Answer:
D
Step-by-step explanation:
Answer:
ITS D
Step-by-step explanation:
A monomial only has one number. Mono meaning 1.
A=201.062 cm²
radius=
diameter=
Answer:
Step-by-step explanation:
area of a circle = πr² = 201.062
r² = 201.062/π
r = √(201.062/π) ≅8 cm
d = 16 cm
Answer:
Radius =8
Diamter = 16
That's the answer
.
.
.
.
.
David has 1,327.00 on his checking account. if he writes a check for 1,987.00, what will David's balance be
The answer is negative 660 (-660)
Graph the inequality x 2.
Answer:
2 CLOSED CIRCLE--------->
Step-by-step explanation:
closed circle on two and go the right
Answer:
--|--|--*--|--|--|--|--|--|--|--|
0 1 2 3 4 5 6 7 8 9 10
Step-by-step explanation:
you would put a closed dot on 2 and make a line going right
2. What are the zeroes of P(x) = x3 – 6x2 – x +62
-6, -1, 1
A.
C. 6, -1, 1
B. -6, -1, -1
D. 6, 1, 1
Step-by-step explanation:
if u mean (x^3 -6x^2 -x- 6) then the answer is C
(6,-1,1)
..................,..........
but if u mean P(x) = x3 – 6x2 – x +62
then the answer is None of the above
-2.724
4.361+1.9328i
4.361+1.9328i
For 30 points pls help me!
Answer:
6.A
7.C
8.E
Step-by-step explanation:
How many times bigger is 315 compared to 312?
Do not include units (times bigger) in your answer.
Answer:
105/104
Step-by-step explanation:
you divide 315 divided by 312 and you get 105/104.
to check it you do 312 times 105/104 and you get 315 to be your answer! Hope this helps ;)
105/104 times the number 315 bigger than the number 312.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
The given numbers are 315 and 312.
Number of times 315 is bigger compared to 312 is
315/312
= 105/104
Hence, 105/104 times the number 315 bigger than the number 312.
Learn more about the multiplication here:
https://brainly.com/question/1562995.
#SPJ3
may the real slim shady please stand I repeat may the real slim shady please stand up
Answer:
lol
Step-by-step explanation:
We're gonna have a problem here
Y'all act like you never seen a white person before
Jaws all on the floor like Pam like Tommy just burst in the door
Select ALL the side lengths that make a right triangle. *
3,6,7
1,2,4
3,4,5
5,9,10
3,4,5 is correct
as we know that ,
3² + 4² = 5²
9 + 16 = 5²
25 = 25
hence . 3,4,5 is correct
Answer:
I'm pretty sure it's 3,4,5 but I'm not sure (is it in cm,mm etc?)
HELP PLEASE
/8th grade mathhhh
Answer:
The answer is 56
Step-by-step explanation:
180-124=56
Evaluate the function f(x)=2x-7 using the values given below. f(-3)=
Answer:
-13
Step-by-step explanation:
f(x)=2x-7
f(-3)=2(-3)-7=-6-7=-13
simplify this please (45)(26)
Answer:
1170
Step-by-step explanation:
45 times 26
Answer:
1170
45x26=1170
Find the value of x.
Write the equation of a parabola in factored form if the x-intercepts are (3,0) and (-5,0) with a maximum point at ( -1,8)
Answer:
y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5)
Step-by-step explanation:
Given the x- intercepts are x = 3 and x = - 5 then the corresponding factors are
(x - 3) and (x + 5)
The equation is the the product of the factors, that is
y = a(x - 3)(x + 5) ← a is a multiplier
To find a substitute (- 1, 8) into the equation
8 = a(- 1 - 3)(- 1 + 5) = a(- 4)(4) = - 16a ( divide both sides by - 16 )
- [tex]\frac{1}{2}[/tex] = a
Then
y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5) ← in factored form
VERY DIFFICULT!! HELP NEEDED
Answer:
4 dogs....hope it helps u
armando and his 3 friends ordered a 4 foot sub for 25.99,4 large drinks for 1.79 each,and a salad for 5.89 what is the total cost?
Answer:
$39.04
Step-by-step explanation:
1.79×4=7.16
total cost->7.16+25.99+5.99=39.04
okay so the problem is "A circle is centered at the point (-3,2) and passes through the point (1,5). The radius of the circle is ( ) units. the point (-7, ) lies kn this circle. I'm not sure how to find the answer.
Answer:
A circle is centered at the point (-3,2) and passes through the point (1,5). The radius of the circle is (5 ) units. the point (-7, -1) and point (-7, 5) lies in this circle.
Step-by-step explanation:
equation of circle is
(X-center_X)^2 + (y-center_Y)^2 = r^2
==> (x+3)^2 + (y-2)^2 = r^2
Now it passes 1,5 so
4^2+3^2 = 5^2
==> r = 5
when x = -7
y = -1 or 5
Given: x = 11 when y = 99. If y varies directly as x, find x when y= 144
Answer:
x=16
Step-by-step explanation:
11×9=99, so variaton is 9x=y. that means y=x/9
144/9=16
Please solve the quadratic equation in 4 steps
x^2-14x+49=5
Answer:
=7±5√
Step-by-step explanation:
is easy and no hard
HELP, i’m really struggling and having a hard time
Answer:
G
Step-by-step explanation:
What is the equation of the line that passes through the point
(
−
6
,
1
)
(−6,1) and has a slope of
−
3
2
−
2
3
?
Answer:
the equation of the line that passes through the point (-6,1) is Y = -x+1
Answer:
I don't no sorry I wish I could awnser it