Answer:
21 students
Step-by-step explanation:
215-5=210
210/10 =21
6 - 6x = 7x - 9x - 22
What is the value of x ?
Answer:
x=7
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
6 - 6x = 7x - 9x - 22
combine like terms
6 - 6x = -2x - 22
+2x +2x
6 -4x = -22
-6 -6
-4x = -28
divide both sides by -4
x = 7
Hope this Helps!!!
Please help me please
Answer:
Jorge is hiking 4 kilometers per hour.
Step-by-step explanation:
Solving an Equation for a Given Variable
The equation f= v + at represents the final velocity of an object. f. with an initial velocity, u, and an acceleration rate,
a, over time, t. Which is an equivalent equation solved for a?
Of-v =a
OL-v=a
V =a
OL+v=a
what is
f(x)=2x+3
if x=10
Answer:
23
Step-by-step explanation:
2(10)+3
20+3
(10,23)
Please mark brainliest :)
Answer:
X=23 sorry if I’m wrong
Step-by-step explanation:
Solve the system.
-2x + 1/2y
= 3/2
x - зу
= 2
Find the value of 'x'.
Answer:
x = -1
Step-by-step explanation:
i multiplied the first equation by 2 to eliminate the fractions and got:
-4x + y = 3
used substitution method: y = 3 + 4x
x - 3(3 + 4x) = 2
x - 9 -12x = 2
-11x = 11
x = -1
Solve Normally 2x-3=5
and Inequalitie 2x – 3 > 5
Answer:
87
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
solve for x = 4
please solve X for me ? :')
The proportional relationship between the number of inches a candle has burned away, b, at any time in hours, t, can be represented by the equation b = 0.25tb=0.25t. What is the constant of proportionality from the time in hours to the inches of candle that has burned away?
Answer:
k = 0.25t^2
Step-by-step explanation:
Given the equation :
b = 0.25t
b = number of inches that has burned away
t = time
From our knowledge of variation;
Since candle length will decrease with time ;
b α 1/ t
b = k/t
Where k is the proportionality constant
Comparing the equation :
b = 0.25t
k/t = 0.25t
k = 0.25t^2
Using Geometric Mean, solve for x.
Answer:
x = 6 units
Step-by-step explanation:
By geometric mean property:
[tex]x = \sqrt{9 \times 4} \\ \\ x = \sqrt{36} \\ \\ x = 6 \: units[/tex]
Factorize -6m plus 9
Answer:
[tex]3(-2m + 3)[/tex]
Step-by-step explanation:
Given
[tex]-6m + 9[/tex]
Required
Factorize
Expression: [tex]-6m + 9[/tex]
Start by expressing the expression as a sum of products.
[tex]-6m = 3 * -2m[/tex] and
[tex]9 = 3 * 3[/tex]
So;
[tex]3 * -2m + 3 * 3[/tex]
Notice that constant 3 is common in both terms.
This can then be factorizes as:
[tex]3(-2m + 3)[/tex]
Hence:
[tex]-6m + 9 = 3(-2m + 3)[/tex]
Answer:
3(-2m+3)
Step-by-step explanation:
please help i have to get this all done by tommorw
Ill mark brainliest to the correct answer
Answer:
I think 1/5 would be the answer
Step-by-step explanation:
I hope this helps
1/4(B-16)=7
Help pleasseee
B=44 i would show my work but i cant take pictures on this school laptop
HELPPPPPPPPPPPP!!! PLEASEEEEEE!! I NEED THIS RIGHT NOWWWW
Answer:
h = 15.13 cm
Step-by-step explanation:
Lateral Surface Area of a Cone
Given a right circular cone of base radius r and height h, the lateral surface area is given by:
[tex]A=\pi r\sqrt{r^2+h^2}[/tex]
We are given the lateral area of a funnel as A=236.64 square cm and the radius is r=4.75 cm. It's required to find the height of the cone. It can be calculated by solving for h.
Squaring:
[tex]A^2=\pi^2 r^2(r^2+h^2)[/tex]
Dividing by [tex]\pi r^2[/tex]
[tex]\displaystyle \frac{A^2}{\pi^2 r^2}=r^2+h^2[/tex]
Subtracting [tex]r^2[/tex]:
[tex]\displaystyle \frac{A^2}{\pi^2 r^2}-r^2=h^2[/tex]
Taking square root:
[tex]\displaystyle h=\sqrt{ \frac{A^2}{\pi^2 r^2}-r^2}[/tex]
Substituting the values:
[tex]\displaystyle h=\sqrt{ 251.472-22.5625}[/tex]
[tex]\displaystyle h=\sqrt{ 228.909}[/tex]
h = 15.13 cm
9n+1
2n+25.5
add the result of both equations together
I need help please!!
Answer:
y=-2x+5
Step-by-step explanation:
thats the equation because you use the formula, y=mx+b. b is the y intercept (the verticle straight line) and m is the slope. hope this helped!!
Solve for x
....................
Answer
go to the website symbolab math solver
Step-by-step explanation:
150m - 125m + 43,200 = 45,675 - 200m
Please help!! What is the value of m ?
first you combine like terms
25m + 43,200 = 45,675 - 200m
then you add 200m to both sides
225m + 43,200 = 45,675
then you subtract 43,200 from both sides
225m = 2,475
then you divide both sides by 225
m = 11
5(2t−3)−7.5t=0.5(12−t)
can you solve for t?
Thank you!
Answer: T=7
Step-by-step explanation:
0t−15−7.5t=6−0.5t
2 Simplify 10t-15-7.5t10t−15−7.5t to 2.5t-152.5t−15.
2.5t-15=6-0.5t2.5t−15=6−0.5t
3 Add 1515 to both sides.
2.5t=6-0.5t+152.5t=6−0.5t+15
4 Simplify 6-0.5t+156−0.5t+15 to -0.5t+21−0.5t+21.
2.5t=-0.5t+212.5t=−0.5t+21
5 Add 0.5t0.5t to both sides.
2.5t+0.5t=212.5t+0.5t=21
6 Simplify 2.5t+0.5t2.5t+0.5t to 3t3t.
3t=213t=21
7 Divide both sides by 33.
t=\frac{21}{3}t=
3
21
8 Simplify \frac{21}{3}
3
21
to 77.
t=7t=7
Two friends, Ellie and Easton, took summer jobs. The equation y = 19.2x represents Ellie's earnings in dollars and cents, y, for working x hours. Easton earned $629.10 in 27 hours.
Answer:
I don't know what's I don't know I'm really sorry very very very very very very very very very very very very sorry very sorry
The sum of 6 consecutive integers is 387. What is the sixth number in the sequence?
A van travelled at an average speed of 65km/hr from town A. A 35 minutes later a car started from town A ans drove along the same route as the van.If the car caught up with the van after travelling a distance of 130km find the avg speed of the car
Answer:
91.6 km/h
Step-by-step explanation:
Let v = average speed of van = 65 km/h and v' = average speed of car. Let t be the time the car starts to move. The van started 35 minutes earlier at t' = (t + 35/60) h.
Since distance d = vt where v = velocity and t = time, the distance moved by the van d = vt' = v(t + 35/60) and that moved by the car is d' = v't.
Since the car catches up with the van after it had moved a distance of 130 km, d = d' = 130 km.
So d = v(t + 0.583)
Substituting d = 130 km and v = 65 km/h, we have
130 km = 65 km/h(t + 0.583)
130 km = (65t + 37.895 )km
subtracting 37.895 from both sides, we have
130 km - 37.895 km = 65t
92.105 = 65t
dividing both sides by 65, we have
t = 92.105/65
= 1.417 h
≅ 1.42 h
Since d = d' = v't,
v' = d'/t
= 130 km/1.42 h
= 91.55 km/h
≅ 91.6 km/h
So, the average speed of the car is 91.6 km/h
Here are the questions hehe
Answer:
89.10 / 4.95 is 18. so the first one is 18.
6 and 9, so we have to find the LCM. 6,12,18 and 9,18, so the first one to get a red and blue cap is the 18th bottle.
We know that the 18th bottle will get a red and blue, so then we have to find the LCM of 18 and 10. 18,36,54,72,90 10,20,30,40,50,60,70,80,90.
The first one to get all three is the 90th bottle.
Hope this helps plz hit the crown :D
Answer:
89.10 / 4.95 is 18. so the first one is 18.
6 and 9, so we have to find the LCM. 6,12,18 and 9,18, so the first one to get a red and blue cap is the 18th bottle.
We know that the 18th bottle will get a red and blue, so then we have to find the LCM of 18 and 10. 18,36,54,72,90 10,20,30,40,50,60,70,80,90.
The first one to get all three is the 90th bottle.
Step-by-step explanation:
whats 1+1+8-3+5-8+4-8+3-5+8-7-7+5+4+3+9+8+2+14+78+
Answer:
115
Step-by-step explanation:
Hope this helps! Brainliest is appreciated!! Happy Holidays!!!
Answer:
The answer of this question is 123
Solve the equation below for the value of x.
−314x + 25 = 214x − 1312
Answer:
x=1337/528
Step-by-step explanation:
-314x-214x=-1312-25
-528x=-1337
x=1337/528
Answer:
Step-by-step explanation:
add 314x to both sides
-314+25=214x-1312
+314x +314x
add 1312 to both sides
25=528x-1312
+1312 +1312
1337=528x
x=1337/528
i dont thing you can simplify to a whole number...hopefully this helps a little :)
The solution set of |4x - 7| = 9 is
{4}
{-1/2, 4}
{}
Answer:
{4}
Step-by-step explanation:
first move 7 to RHS in addition
then 4 in RHS in division
Answer:
{-1/2,4}
Step-by-step explanation:
∠A and \angle B∠B are vertical angles. If m\angle A=(5x-2)^{\circ}∠A=(5x−2) ∘ and m\angle B=(3x+12)^{\circ}∠B=(3x+12) ∘ , then find the value of x.
Answer:
x = 7
Step-by-step explanation:
From the above question, we are told that:
∠A and ∠B vertical angles.
It is important to note that vertical angles are equal to each other
Hence:
∠A = ∠B
From the question,
∠A = (5x−2)°
∠B = (3x+12)°
Hence:
(5x−2)°= (3x+12)°
5x - 2 = 3x + 12
Collect like terms
5x - 3x = 12 +2
2x = 14
x = 14/2
x = 7
Answer:
X=14
Step-by-step explanation:
What is the y-intercept of the functiion f(x)=-2/9x+1/3 O-2/9 O-1/3 O1/3 O2/9
Please see the image attached for the solution.
PLEASE HELP!!! A $950 computeris on sale for 15% off. If sales tax is 6% will this computer cost including tax?
Answer:
the computer will cost 864.5
Step-by-step explanation:
15% of 950 is 142.5.
950-142.5=807.5
6% of 950 is 57
Answer:
$855.95
Step-by-step explanation:
So We can first multiply the original price by 0.85 becuase its 15 percent off and we’re paying 85 percent of the original price basically.
You’ll get 807.50.
Now to find the sales tax we multiply that by 1.06 becuase the 100 percent is the price now and we’re just adding 6 percent so 1.06, and you’ll get 855.95
So no adding and subtracting and that takes off 2 steps and its way quicker
So the final answer is $855.95
Evaluate (3n + 2) – 10 when n = 3.
First, evaluate within the parentheses. Then evaluate exponents. Next, multiply and divide from left to right. Then, add and subtract from left to right.
Evaluate the expression for the given value of the variable and use the drop-down menus to complete the statements.
Substitute the given value for the
.
Use the
to simplify.
First, complete the
inside the parentheses.
Next, complete the
inside the parentheses.
Last, complete the subtraction.
The value is
.
Answer:
1
Step-by-step explanation:
(3x3-2)-10=(9+2)-10=11-10=1
Answer:
The value is 1.
Step-by-step explanation:
(3n + 2) – 10
(3(3) + 2) – 10
9+2-10
11-10
1