Let's solve your system by substitution.
y=2x+1;y=4x−1
Step: Solve y=2x+1for y:
y=2x+1
Step: Substitute2x+1foryiny=4x−1:
y=4x−1
2x+1=4x−1
2x+1+−4x=4x−1+−4x(Add -4x to both sides)
−2x+1=−1
−2x+1+−1=−1+−1(Add -1 to both sides)
−2x=−2
−2x
−2
=
−2
−2
(Divide both sides by -2)
x=1
Step: Substitute1forxiny=2x+1:
y=2x+1
y=(2)(1)+1
y=3(Simplify both sides of the equation)
Answer:
x=1 and y=3
Show work!
1. James did an experiment. He started out with 640 bacteria cells. He found that the growth rate of the bacteria
cells was 5.3%. Sketch the graph that represents the situation. Label the y-intercept and the point that
represents the projected bacteria population 25 h from the time James started the experiment.
2.The function f(x) = 150(1.3)
t
represents the number of bikes sold at Peer’s Bike store in months. The graph
represents the amount of bikes sold at Cycles R Us bike store in the same time period.
Answer:
y = 2327.49 ---> 25 hrs
starting plot points (0,640) and ending (25, 2327.49)
Step-by-step explanation:
b = 640
r = 5.3% = 0.053
t = 25
y = 640 ( 1 + 0.053)^25
y = 640 ( 1.053)^25
y = 2327.49 ---> 25 hrs
starting plot points (0,640) and ending (25, 2327.49)
help:(!!.!.!.!.!.!!.!.
Answer:
Step-by-step explanation:
10(5)=50
Answer:
50
Step-by-step explanation:
A=bh
50 = 10 x 5
What is the slope that passes through the points(-2,4) and (3,8). m=
Please Mark as brainlist ..........
PLEASE HURRY IM BEING TIMED!! WILL GIVE BRAINLIEST FOR THE FIRST PERSON TO ANSWER!!!!
Which is an irrational number between -9 and -10?
Answer:
B.
Step-by-step explanation:
Irrational means it can't be written as a fraction.
How many terms are in the expression below.
15+7x-8+4
Answer:
None
Step-by-step explanation:
I don't think you count terms that are being added together. You can only count if they are terms when you multiply or divide but never when you add or subtract I AM pretty sure.
Tell me if I'm wrong.
Answer:
4
Step-by-step explanation:
Which scenario is best represented by a linear function?
A
The area of a square, A, where the length of each side of the square is represented by
S (A= s?)
The perimeter of a square, P, where the length of each side of the square is
B represented by s
(P = 4s)
The surface area of a cube, A, where the length of each side of the cube is
C represented by s
(A = 6s )
The volume of a cube, V, where the length of each side of the cube is represented by
s(V = $)
Answer:
P=6sStep-by-step explanation:
to understand thisyou need to know about:linear functiontips and formulas:a linear function is function with two variables one dependent another one is independentlet's solve:since we can see what linear function is
the second condition is the best fit
The perimeter of a square, P, where the length of each side of the square is B represented by s(P = 4s)therefore
our answer is b
What is the perimeter of the triangle?
Answer:
The answer is 36
Step-by-step explanation:
First, suppose that each square is the unit length, and from it the length of the hall can be calculated and we find that it is equal to 10, then to find the value of the other two we drop a column of the vertex of the triangle on the base and find that its length is 12 units and it divides the base into two equal halves, so we determine that each side equals 13 units using Pythagoras and it will be The lengths of the sides of the triangle are 10, 13, 13
Then the perimeter is
[tex]10 + 13 + 13 = 36[/tex]
help me out with this pls (multiple choice) ty
Answer:
C
Step-by-step explanation:
[tex] \sin(30) = \frac{8}{x} \\ x = \frac{8}{ \sin(30) } = 16 \\ \tan(30) = \frac{8}{y} \\ y = \frac{8}{ \tan(30) } = 13.85 = 8 \sqrt{3} [/tex]
Both my numerator and my denominator are even numbers, and their sum is 68. I am equivalent to 7/10
.
What fraction am I?
Answer:
28/40
Explenation:
28+40= 68. 28/40 simplified is 7/10ths and both 28 and 40 are even numbers.
What scale factor was applied to the first rectangle to get the resulting image?
Answer:
2.5
Step-by-step explanation:
7.5/2=2.5
I really need help please :))))))
Answer:
If there were 25% fewer sunny days this year, then the answer would be 75%. This is because there are(100-25)% of the sunny days this year compared to last year.
Let me know if this helps!
HELP!!
Can someone please help me on these two questions ?
The area of a triangular-shaped rug is 21 square yards and the height is 3 yards. Find the base.
Answer:
14 yards
Step-by-step explanation:
the area of a triangle is 0.5×b×h
so
plug in what you have
0.5×b×3=21
(3x0.5)b=21
1.5b=21
b=21/1.5
b=14
um some help please? asap
The blue dot is at what value on the number line?
HELPPPPPP SOMEONE PLEASE
Answer:
the answer should be A) 12
Step-by-step explanation:
54 ÷ 3^2 × 2
54 ÷ (3 × 3) × 2
54 ÷ 9 × 2
6 × 2
12
please help!
i will give brainilest.
:
Two boats are traveling toward a lighthouse that is 200 feet (ft) above sea level at its top. When the two boats and the lighthouse are collinear, the boats are exactly 250 feet apart and the boat closest to the lighthouse has an angle of elevation to the top of the lighthouse of 15°, as shown.
What is the value of x, rounded to the nearest hundredth?
Answer:
Which Number Is x, You Didnt Specify
a) converts into minutes 4 hours 30 minutes
Answer:
270 Minutes
Step-by-step explanation:
4hours = 240 Minutes
+30 minutes = 270 Minutes
The table gives 20 years of data on the number of students in a particular school who dropped out in the ninth grade. A sample is taken to include only the last 3 years of this data. With this information, calculate both the population mean and the sample mean for ninth-grade dropouts per year.
Answer:
4.35 and 5.33
b) The ratio 3:5 can be written in the form 1:n
Gavin took a taxi home from the airport. The taxi fare was $7 plus an additional $0.65 per mile.
Gavin gives the driver a $3 tip when he arrives home. If Gavin paid a total of $62.65 with the tip,
what is the distance between the airport and Gavin's house?
Answer:
81
Step-by-step explanation:
$62.65-$7-$3=$52.65
Distance->52.65÷0.65=81
PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP PLS HELP! how do I rob a bank
Answer:
go to nearby bank with your face covered
pick a toy gun ( it must be water gun)
shoot on the bank manager ask for money then ran away
Step-by-step explanation:
just one place where we can do anything and no-one will catch us is our dream our imagination
so rob as you like in whatever way.
All the best :D
For an angle with measure x in a right triangle, sin x = 112/113
and tan x = 112/15. What is the value of cos x?
Answer:
cosx=Adj/hyp
cosx=15/113
what is 100÷21?
56×32=
76+77
Answer:
100 ÷21 = 4.76 or 5
56 × 32 =1732
76+77= 153
Step-by-step explanation:
Hope it help
Mark me as brainliest
a moose is crossing a highway from marker a to markerb.a triangle connects markers ABC and markers BandC are 38 apart the angles Cand B Measure 70 and 60 respectively what is the distance from point A to pointB traveled by themoose
Answer:
bence cevap b ben çözdüm çok kolaydı yni burda sormanada gerek yoktu
Which is a factor of x^2+ x - 12?
Answer:
(x+4) and (x-3)
Step-by-step explanation:
Find two numbers that add to be the second term and multiply to be the third In this case, those two numbers are 4 and -3
What two numbers when multiplied yield -12 but when added produce the coefficient of the middle term x?
How about 4 times -3?
Look: 4(-3) = -12, but when added give you 1.
(x - 3) (x + 4)
Done!
Don José tiene un terreno de forma cuadrangular el cual mide 1369 metros cuadrados de área si desea colocarle un contorno con un lazo a todo el terreno que medida tendrá que tener el lazo
Answer:
1370 metros creo no se tal ves
expand and simplify 3(x+2) +2 ( x+5)
Answer:
[tex]3x + 6 + 2x + 10 \\ = 3x + 2x + 10 + 6 \\ = 6x + 16[/tex]
your answer dude mark me as brainelist give me thanks
Answer:
5x + 16
Step-by-step explanation:
3(x+2) +2 ( x+5)
divide the expression into 2 separate ones:
3(x + 2) and 2(x + 5 )
Now for 3( x + 2 ) Multiply 3 with x and 3 with 2. This gives:
3x + 6
Now for 2( x + 5 ) Multiply 2 with x and 2 with 5. This gives:
2x + 10
Now since there is a '+' sign between 3( x + 2 ) and 2( x + 5 ), the expression will be:
3x + 6 + 2x + 10
You can simplify the like terms together:
3x + 2x + 10 + 6
= 5x + 16
prove that there is only one circle determined by three noncollinear points
Answer:
O lies on the perpendicular bisector of AB. ... Then, O' will lie on the perpendicular bisector PQ and RS. We know that, two lines cannot intersect at more than one point, So O' must coincide with O. Hence, there is one and only one circle passing through three non collinear points
Step-by-step explanation: