Solve 5r + 7s = 15 for s
Answers
Answer:
Here it is:
:P
Answer:
s=15/7 - 5r/7
Step-by-step explanation:
Related Questions
Which equation defines a function whose inverse is not a function?
A. y=x^2
B. y=x
C. y=4x-2
D. y=3^x
Answers
Step-by-step explanation:
d maybe byeee jziziznssusuisbzs
Use vertex (h, k) and a table of values g(x) = 2 * (x - 2) ^ 2 + 5
Answers
Step-by-step explanation:
Since the equation is in vertex form: a(x - h)² + k, we immediately know that the vertex is at (2, 5).
x | y
0 | 13
1 | 7
2 | 5
3 | 7
4 | 13
Answer:
Step-by-step explanation:
Comparing the given g(x) = 2(x - 2) ^ 2 + 5 to h(x) = a(x - h)^2 + k, we see that h = 2, k = 5, a = 2. Thus, the vertex is at (2,5). Several sample points on this graph are:
x y = g(x) (x, y)
2 5 (2, 5)
0 2(0-2)^2)+ 5 (0, 13)
1 2(1-2)^2 + 5 (1, 7)
3 2(3-2)^2 + 5 (3, 7)
and so on. Plot these are several more points and then draw a smooth curve through them. The graph will be a parabola with vertex (2, 5) that opens up.
PLEASE HELP
5.Two mechanics were working on your car. One can complete the given job
in six hours, but the new guy takes eight hours. They worked together for
the first two hours, but then the first guy left to help another mechanic on
a different job. How long will it take the new guy to finish your car?
Answers
9. A = Pe (rt) is the formula to calculate continuously compounded interest
O True
O False
Answers
Find the area of the regular shape in squared units
Answers
What is the center and radius of this circle? HELP!
Answers
Answer:
Center: at the point (-3, 2)
Radius: 3 units
Simplify the expression by combining like
terms:
3x + 18 + 4x + 2
Answers
Answer:
7x+20
Step-by-step explanation:
3x + 18 + 4x + 2
Combine like terms
3x+ 4x + 18+2
7x + 20
3 points
15. Metal A has a density of 2.4g/cm3 and Metal B has a density of 1.8
g/cm3. Their masses are combined in the ratio 2:3 to make metal C which
has a mass of 60 grams. Find the density of the metal C*
Answers
Answer:
The density of the metal C is 2 g/cm³
Step-by-step explanation:
The parameters of the two metals are;
The density of the Metal A = 2.4 g/cm³
The density of the Metal B = 1.8 g/cm³
The ratio in which their masses are combined to make the metal C= 2:3
The mass of the metal C, m = 60 grams
Let, 'x', represent the mass of the metal A in the 60 grams of the metal C and let 'y' represent the mass of the metal B in the 60 grams of the metal C
Let the ratio of the metals A and B in the metal C = x:y = 2:3
Therefore;
The mass of the metal A in the metal C, x = (2/(3 + 2)) × 60 g = 24 g
The volume of the metal A in the metal C, V₁ = (24 g)/(2.4 g/cm³) = 10 cm³
The mass of the metal B in the metal C, y = (3/(3 + 2)) × 60 g = 36 g
The volume of the metal B in the metal C, V₂ = (36 g)/(1.8 g/cm³) = 20 cm³
The volume of the metal C, V = V₁ + V₂ = 10 cm³ + 20 cm³ = 30 cm³
The density of the metal C = ρ = m/V
ρ = (60 g)/(30 cm³) = 2 g/cm³
The density of the metal C, ρ = 2 g/cm³
-24x^3y^2+16xy^3+12y^3
Answers
Answer:
4y^2 x (6x^3 - 4xy - 3y)
Step-by-step explanation:
Factor out -4y^2 from the expression
A custom t-shirt company charges a $200 setup fee and $5 per t-shirt. Write an equation that can be used to determine how many t-shirts must be produced so that the total cost per t-shirt is $5.33?
A. (200+5x)/x =5.33
B. (200/x) +x = 5.33
C (200) + 5/x = 5.33
200 + 5x = 5.33/x
Answers
Answer:
its a
plz brainlest
Step-by-step explanation:
Dan buys a car for £700.
It depreciates at a rate of 5.5% per year.
How much will it be worth in 6 years?
Give your answer to the nearest penny where appropriate
Answers
30% of 50
what’s the easiest and fastest way to solve it?
Answers
Step 2: We represent the unknown value with $x$.
Step 3: From step 1 above,$50=100\%$.
Step 4: Similarly, $x=30\%$.
Step 5: This results in a pair of simple equations:
$50=100\%(1)$.
$x=30\%(2)$.
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have
$\frac{50}{x}=\frac{100\%}{30\%}$
Step 7: Again, the reciprocal of both sides gives
$\frac{x}{50}=\frac{30}{100}$
$\Rightarrow x=15$
Therefore, $30\%$ of $50$ is $15$
Answer:
15
Step-by-step explanation:
change the percent to a decimal
30% to .30
.30 x 50= 15
yuson must complete 30 hours of community service. she does 2 hours each day. which linear equation represents the hours yuson has left after x days?
Answers
Answer:
30-2x
Step-by-step explanation:
yuson has to finish am total of 30 hours in community service
she does 2 hours each day
in x days, hour of service done=2x
after x days hours of service left=30-2x
therefore the linear equation representing the hours yuson has left after x days is:
30-2x
-8/12 DIVIDED BY 3/9
Answers
Answer:
-1/3
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
Which equation can be used to solve for x in the following diagram?
Answers
Step-by-step explanation:
B because the straight angle must be 180°
3x+y=-9
Y=5x+7
Solve the system of linear equations by substitution
Answers
Answer:
x=-2
Step-by-step explanation:
Substitute y=5x+7 into the equation 3x+y=-9
So you will have, 3x+5x+7=-9
3x+5x=8x
8x+7=-9
8x+7-7=-9-7
8x=-16
x=-2
II. Work out questions
6. A survey was conducted by
asking 120 students in a town
how they traveled to school.
The following pie chart shows
the result of the survey.
What are the number of students
that travel to school by bus?
Best Answer gonna have branliest
Answers
Answer:
(a) Since, the highest central angle 120⁰ is of the bus
hence , the most common mode of transport is the bus.
(b) Fraction of children travelling by car =
angle covered by car section
--------------------------------------------
total angle
= 90⁰ 1
--------- = ---------
360⁰ 4
(c) No. of children travelling by car = Fraction of children travelling by car× Total no of children.
1
= 18 = ----- × Total no. of children.......from(b)
4
⇒ Total no of children = 18×4
⇒ Total no of children = 72
(d) Central angle of children who do not take texi = 120⁰ +90⁰ +60⁰+60⁰
⇒ Central angle of students who do not take taxi = 330⁰
⇒ Central angle of students who do take taxi = 360⁰ −330⁰ =30⁰
30⁰
No . of children travelling by taxi = --------- × Total no of children
360⁰
30⁰
⇒ No of children travelling by taxi = --------- × 72 = 6
360⁰
(e) The central angle for students travelling by cycle and those who walk is same.
Thus , the two modes of transport are equal number of children travelling are cycle and walk.
Step-by-step explanation:
hope it's helpful to you
have a great day ahead buddy✌️✌️☺️☺️
To solve the inequality 4x < 8, you would divide both sides of the inequality by 4.
True
False
Answers
Answer:
True
Step-by-step explanation:
4x<8
divide
x<2
what’s the equation for this?
Answers
Answer:
y = 2x-3
Step-by-step explanation:
The y intercept is -3. The slope is change in y/change in x. 2/1 = 2
A skyrocket is launched from a 8-foot-high platform with an initial speed of 220 feet per second. The polynomial 16t^ ^ 2+220t+8 gives the height in feet that the skyrocket will rise in t seconds. How high will the rocket rise if it has a 7-second fuse?
The equation above is - 16t ^ 2 + 220t + 8
A) 748
B) 764
C) 788
D) 882
Answers
Given :
A skyrocket is launched from a 8-foot-high platform with an initial speed of 220 feet per second.
The polynomial -16t² + 220t + 8 gives the height in feet that the skyrocket will rise in t seconds.
To Find :
How high will the rocket rise if it has a 7-second fuse?
Solution :
Since, it is given that the rocket has a fuse time of 7 seconds.
Putting value of 7 sec in given equation, we get :
Height = -16×( 7 )² + 220×( 7 ) + 8
Height = 764 m
Therefore, height of rocket in 7 second fuse is 764 m.
Point $Y$ is on a circle and point $P$ lies outside the circle such that $\overline{PY}$ is tangent to the circle. Point $A$ is on the circle such that segment $\overline{PA}$ meets the circle again at point $B$. If $PA = 15$ and $PY = 9$, then what is $AB$? [asy] unitsize(2 cm); pair A, B, P, Y; Y = dir(130); A = dir(20); B = dir(180); P = extension(Y, Y + rotate(90)*(Y), A, B); draw(Circle((0,0),1)); draw(Y--P--A); label("$A$", A, E); label("$B$", B, SW); label("$P$", P, W); label("$Y$", Y, N); [/asy]
Answers
Answer:
48/5
Step-by-step explanation:
By power of a point on P, we have PB * PA = PY^2. Therefore,
PB = PY^2/PA = 9^2/15 = 27/5. Then AB = PA - PB = 15 - 27/5 = 48/5
Solve for the unknown 7/G = 35/50
Answers
Answer:
g=10
Step-by-step explanation:
[tex]\frac{7}{g} =\frac{35}{50}\\[/tex]
We can cross multiply so that would be:
[tex]35g=50*7 \\35g=350 \\g=10[/tex]
Hope this helps and answers your question! Have a great day/night!
Answer:
g=10
Step-by-step explanation:
13x = 3(X-20) How to solve this algebra equation?
Answers
Answer:
x = -6
Step-by-step explanation:
13x = 3(x - 20) {Use distributive method:a(b+c)=(a*b) + (a*c)
13x = 3*x - 3*20
13x = 3x - 60 {Subtract '3x' from both sides}
13x -3x = -60
10x = -60 {Divide both sides by 10}
x= -60/10
x = -6
Probably really annoying well please please please please please please help me
Answers
Answer:
What are the top 2 angle measures? i need it to answer.
a=80 (assuming the other 2 angle in that triangle are 55 and 45)
b=80 adjacent angles are equal
c=48
what is the answerk of this 3
3х2
4ys
Answers
Answer:
33×2=66
4ys
Step-by-step explanation:
or is it 33×24ys=66ys
what is x? I WILL MARK BRAINLIEST FOR FIRST WHO ANSWERS!!!!!
Answers
Answer:
It is 19
Step-by-step explanation:
Hope this helps.
The grade of a road is the ratio of its rise to its run and is usually given as a decimal or percent. Find the angle that this road makes with the horizontal ground if its grade is 14% (14/100 or 0.14)
Answers
Answer:
the angle would be 1/2 i did this problem before and got it correct
Step-by-step explanation:
Sharon tried to solve an equation step by step.
all Sumi
9 = -3(e - 2)
mbining
9-3e + 6
Step 1
he distrib
15 - 3e
Step 2
5=e
nterpretin
Step 3
Find Sharon's mistake.
O 1.5
Choose 1 answer
Answers
Step 2(?) the step with 15 - 3e
When combining 9 = -3e + 6, six would be subtracted from nine equaling three not fifteen.
Correct Steps:
Equation: 9 = -3 (e - 2)
Step 1: 9 = -3e + 6
- 6 - 6
3 = -3e
Step 2: 3 = -3e
/-3 /-3
-1 = e
Answer: -1 = e
Please help! Will mark brainliest if correct! Worth 20 points!
Answers
On Halloween 87.5% of the homes in a certain neighborhood handed out candy. If there are 104 homes in the neighborhood how many handed out candy
Answers
Answer:91
Step-by-step explanation:
87.5/100=.875, .875*104=91