Which graph matches the equation: y = -2X -1
Answer:
Option 2
Step-by-step explanation:
Answer:
it option 2
Step-by-step explanation:
List a, b, and c for the following Quadratic: 2x2 + 5x + 3 = 0
Answer:
a = 2
b = 5
c = 3
1. John’s age is three times that of his sister. When you add John’s age to his sister's age, you get 36. How old are John and his sister?
(a) Write an equation that represents the situation. (1 point)
(b) Solve the equation from Part (a). Show your work. (3 points)
Answer:
Part A: Write an equation.
If the present age is y, then n times the present age = ny.
If the present age is x, then age n years later/hence = x + n.
If the present age is x, then age n years ago = x – n.
The ages in a ratio a: b will be ax and bx.
Part B: Solve the equation.
John’s age =
John’s sister’s age =
Answer:
sister = 6 years
John=18 years
Step-by-step explanation:
A(S) + 12 = 3 * A(S), subtracting A(S) from both sides one gets 12 = 2 * A(S). Now dividing both sides by 2 we get A(S) = 12/2 = 6 . Therefore, the age of the sister is 6 years when her brother John is three times as old, that is 18 years.
Answer:
36-x=y
y*3=x
x+y=36
Step-by-step explanation:
I wasnt really sure how to write the equation the way you're supposesd to?
John is 27 and his sister is 9. 9*3=27
I just used guess and check sorry
please help me !!:)))
Answer:
on
Step-by-step explanation:
Are 2(x + 1) and 2x + 1 equivalent expressions? explain.
I’m not in a hurry, take your time.
Answer:
Yes
Step-by-step explanation:
When you simplify 2(x+1). [MULTIPLY]
It comes 2x+1 so it is equivalent to 2x+1
Yes, 2(x + 1) and 2x + 1 are equivalent algebraic expression.
Given that,
To determine whether the 2(x + 1) and 2x + 1 are equivalent expressions.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let
y = 2 (x + 1) - - - - - -(1)
z = (2x + 1) - - - - - (2)
from equation1
y = 2 (x + 1)
using the PEMDAS rule, applying operation on the parenthesis 1st as distributive property,
now,
y = 2x + 1
Since the outcome of the equation is equal to equation 2.
Thus, 2(x + 1) and 2x + 1 are equivalent algebraic expression.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ2
solve for extra points and brainlist
Answer:
ポイント
Step-by-step explanation:
ポイント
Which rate describes a unit rate of 6:1?
Answer:
6/1
Unit rate = 6
Unit rates are ratios that compare two measurements (units) and the second measurement is 1 (per)
if triangle abc is similar to triangle edc find the value of x
Answer:
x = 15
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{BC}{DC}[/tex] = [tex]\frac{AC}{EC}[/tex] , substitute values
[tex]\frac{3x-5}{32}[/tex] = [tex]\frac{5x-5}{56}[/tex] ( cross- multiply )
56(3x - 5) = 32(5x - 5) ← distribute and simplify both sides
168x - 280 = 160x - 160 ( subtract 160x from both sides )
8x - 280 = - 160 ( add 280 to both sides )
8x = 120 ( divide both sides by 8 )
x = 15
Expand the following:
a) x(x + 2)
b) x(2x - 5)
c) 2x(3x + 4)
d) 6x(x - 2y)
a) x²+2x
b)2x²-5x
c)6x²+8x
d)6x²-12xy
−6k + 7k
12r − 8 − 12
n − 10 + 9n − 3
−4x − 10x
−r − 10r
There all diffrent equations
Answer:
1 is k
2 is 12r minus 20
3 10n - 13
4 -14x
5 -11r
Step-by-step explanation:
think you have to simplify
Find the area of this semi-circle with radius,
r
= 61cm.
Give your answer rounded to 1 DP.
Answer:
692.7cm²
Step-by-step explanation:
A = πr²/2 = 220.5 * π [cm²] ≈ 692.72 [cm²]
Mr. Howard entered a canoe race. He rowed 3 1/2 miles in 3/4 hour. How many miles can he row in one hour???
Answer:
9 miles per hour
Step-by-step explanation:
Apply the distributive property using the greatest common factor to write an equivalent expression.
Enter your answers in the boxes.
0.3x – 2.7 =T0-0)
Step-by-step explanation:
0.3x = (0.3)(x).
2.7 = (0.3)(9).
Between the 2 terms, the GCF is 0.3.
Hence,
0.3x - 2.7
= (0.3)(x) - (0.3)(9)
= 0.3(x - 9).
(f +g)x= g(x)+ f (x)
Is the this true or false?
Answer:
True
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
This is true by definition.
A dog kennel charges $40 to board a dog for one night and $35 per night each night after that. Henry
paid a total of $215 for dog boarding. For how many nights did Henry board his dog?
Answer: 6 nights
Step-by-step explanation:Step-by-step
Minus 40 from 215 then divide it by 35
Solve each system of equations using matrices.
-2x = -6y + 8
2y = x + 1
Answer: 1.) x - 2y = 4 , add 2y to both sides. ---> answer is, X = 2y + 4
2.) 2x - 6y = 8, Add 6y to both sides, then divide both sides by 2. --> answer is, X = 3y + 4
Tamu ran 30 minutes and burned 170 calories. PART A: Which equations can be used to find the average number of calories, c, burned per minute? *
Answer:
÷
Step-by-step explanation:
I would divide 30 minutes by 170 and it should give you exactly how many calories that is burn per minute .
please i need an answer ASAP!!
A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the high-quality version is 4.1
MB. Yesterday, there were 1600 downloads of the song, for a total download size of 5624 MB. How many downloads of the high-quality version were
there?
Number of high-quality version downloads:
Answer:
Number of high quality version downloads = 880
Step-by-step explanation:
Let,
x be the number of standard version songs downloaded
y be the number of high quality version songs downloaded
According to given statement,
x+y=1600 Eqn 1
2.8x+4.1y=5624 Eqn 2
Multiplying Eqn 1 by 2.8 to eliminate x
2.8(x+y=1600)
2.8x+2.8y=4480 Eqn 3
Subtracting Eqn 3 from Eqn 2
(2.8x+4.1y)-(2.8x+2.8y)=5624-4480
2.8x+4.1y-2.8x-2.8y=1144
1.3y=1144
Dividing both sides by 1.3
[tex]\frac{1.3y}{1.3}=\frac{1144}{1.3}\\y=880[/tex]
Hence,
Number of high quality version downloads = 880
In the evening, the golf course discounts a round of golf by 35%. What percent of the normal price do you pay if you play in the evening?
Answer:
65%
Step-by-step explanation:
100 = 35 = 65
hii I really need help!!
sorry if it’s kinda long lol.
question:
Sonia has two packages of hamburger meat. The first package weighs 1.76 pounds and the second package weighs 2.29 pounds. She mixed the two packages together and forms hamburgers that weigh 0.25 pounds each. What is the greatest number of 0.25-pound hamburgers Sonia can make using the hamburger meat she has?
Answer:
16
Step-by-step explanation:
2.29+1.76=4.05
4.05/0.25=16.2
round down to 16
you would have a little extra but you would only be able to make 16 .25 pound ones
IF YOU ANSWER YOU ARE THE BEST
Answer:
yellow
Step-by-step explanation:
im not sure what its asking so im guessing what the point is
SOMEONE PLEASE HELP ME WITH THIS!!!!! ITS GEOMETRY
Answer:
KG = 7 (A)
m KIH = 28 (B)
m JIH = 96 (D)
m HKI = 68 (B)
m KJI = 84 (C)
Step-by-step explanation:
Notice that the triangle HKJ is identical to HIJ. Since there are lines drawn to each other and both triangles are identical, the lines KG and GI are the same. This means that it is 7.
The triangle KGJ is identical with IGH. Using the recognise angle property, we know that angle JKI is the same as KHI. This means that it is 28.
Angle JIH is the same as angle JKH. Since JKH is 180 - (KHI or 84), we know that the angle JIH is 96.
We can find angle HKI by subtracting 96 by 28 because we know that angle HKI is the same as JIH. This gives us 96-2 8 = 68.
Angle KJI is the same as KHI which is 84. Therefore, KJI is also 84.
-8 = -19 + C
plz answer this
Answer:
c = 11
Step-by-step explanation:
-8 = -19 + 11
for which value will the equation have only one solution:x=10
Answer:
I think its this
Step-by-step explanation:
x=380=2632≈26.6
Daniel ran 5 kilometers in 40 minutes. Andy ran 4,550 meters in 37 minutes. Who ran faster?
PLEASE GIVE ME EXPLANATION
Answer:
Daniel
Step-by-step explanation:
Daniel ran 5000/40=500=4=125 meters in 1 minutes
Andy ran 4550/37=122.9729... some less than 123 meters in second
Daniel was faster than Andy
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihi
Answer:
HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
Step-by-step explanation:
how are you
need help asap
Sikeeeeeeeeeeeeeeeeeeeeeee dis aint ma work
GTA LITE V2 BY WITLOPPELZGAMING
Which equation is NOT written in slope-intercept form?
Answer and Explanation
__________________________________________________________
B) 2x - 5 = 2y + 14
__________________________________________________________
slope intercept form: y = mx + b
__________________________________________________________
B) 2x - 5 = 2y + 14 is the only answer choice that does not isolate y, and place all other terms on the other side; therefore, is your answer.
__________________________________________________________
Hope this helps! <3
__________________________________________________________
solve x
4x-5 /5 = 3
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4x−
5
5
=3
4x+−1=3
4x−1=3
Step 2: Add 1 to both sides.
4x−1+1=3+1
4x=4
Step 3: Divide both sides by 4.
4x
4
=
4
4
x=1