Answer:
=−2
=−9
Step-by-step explanation:
18.Lupe and her friends spent $20 on snack mix and water. They bought x bags of snack mix and y bottles of water. They bought a total of 11 items. The system of equations can be used to determine how many of each item they bought.
Answer:
bags of snack = x = 6
bottles of water = y = 5
Step-by-step explanation:
The system of equations can be used to determine how many of each item they bought.
20.00=2.50x+1.00y
11=x+y
how many bags of snack mix did they buy?
Let
bags of snack = x
bottles of water = y
20.00 = 2.50x + 1.00y (1)
11 = x + y (2)
From (2)
x = 11 - y
Substitute x = 11 - y into (1)
20.00 = 2.50x + 1.00y
20.00 = 2.50(11 - y) + 1.00y
20.00 = 27.5 - 2.50y + 1.00y
20.00 - 27.5 = -2.50y + 1.00y
-7.5 = -1.5y
y = -7.5/-1.5
y = 5
Substitute y = 5 into (2)
11 = x + y
11 = x + 5
11 - 5 = x
x = 6
bags of snack = x = 6
bottles of water = y = 5
Vince starts with 0 then adds the number 3 times..Jen starts with 1 then multiples the number 10 three time
Answer:
Where are the numbers?
Step-by-step explanation:
????????????????????????????
Answer:
there are no numbers
Step-by-step
!!!!!!!!!!!!!!!!!!!!!!!!!!
What is the solution to the equation = 25?
x = 5
x = 10
x = 25
x = 125
Answer:
x=125
Step-by-step explanation:
To solve we must find a number that when divided by 5 equals 25.
To do this we can either...
Take each answer choice and plug in the value into the x spot and see if it works...
5/5=25 WRONG
10/5=25 WRONG
25/5=25 WRONG
125/5=25 CORRECT!
ORRR... we can set the equation so that the x is alone on one side.
To do this we can multiply both sides by 5
[tex]\frac{x}{5}[/tex]=25 ---> x=25×5
x=125
Answer:
I use ignitia too! ANd the other person is correct, i think..
Step-by-step explanation:
Solve this system of equations: (picture is there)
List the solution (x,y) for this set of systems of equations and then explain how you found the solution.
Step-by-step explanation:
[tex](x...y = (2...4)| [/tex]
Answer:
x = 2, y = 4
Step-by-step explanation:
We can solve the system of equations using substitution. (We can't use elimination for a problem like this because there's no addition or subtraction in the first equation, and besides, it would make it longer.)
Replace the y value in [x = -y + 6] with "2x", because y = 2x.
x = -2x + 6
From there, we can solve the linear equation.
x = -2x + 6
add 2x to both sides
3x = 6
divide by 3
x = 2
From x, we can also figure out what y equals.
Replace the x value in [y = 2x] with "2", because x = 2.
y = 2*2
y = 4
x = 2 and y = 4
How would you begin to plot the ordered pair ( 6,2)?
Step-by-step explanation:
start with x which is 6
then plot it
then do y which is 2
and plot
Answer:
Make a grid and put your order pair in the graph
because you would take 6,2 and on the grid go up to 6 and down all the to 2 i hope i helped!
Step-by-step explanation:
Correct answer and detailed explanation pls!!!
Answer:
Step-by-step explanation:
Answer:
-15 < x
Step-by-step explanation:
Please with steps!! Help!
Answer:
40 miles , 1 hour 30 mins
Step-by-step explanation:
(a)
His visit to Nicola is indicted by the horizontal part of the graph.
Using the vertical ( distance ) axis , this shows 40 miles
(b)
Using the horizontal ( time ) axis
The left side of the horizontal red line shows 10.00
The right side shows 11.30
Then 11.30 - 10.00 = 1 hour 30 minutes
HI help i will give brainlist to anyone who answers
Answer: 4
Step-by-step explanation:
Formula:
logb(x) = y, if by = x
Input:
x = 256
b = 4
Solution:
y = log4 256
= log4 44
= 4 log4 4 = 4 x 1
log4 256 = 4
I Need help with this please
Answer:
5
Step-by-step explanation:
A sequence can be generated by using an=5an−1, where a1=2 and n is a whole number greater than 1.
What are the first 3 terms in the sequence?
2, 7, 12
2, 10, 50
5, 7, 9
5, 10, 20
Answer:
2nd option
Step-by-step explanation:
Using [tex]a_{n}[/tex] = 5[tex]a_{n-1}[/tex] and a₁ = 2 then
a₂ = 5 × a₁ = 5 × 2 = 10
a₃ = 5 × a₂ = 5 × 10 = 50
the first 3 terms are 2, 10, 50
The first three terms of the given sequence are 2, 10, 50
What is sequence?A sequence in which every term is obtained by multiplying or dividing a definite number with the preceding number is known as a geometric sequence.
Given that, a sequence can be generated by using aₙ₋₁ = 5 and a₁ = 2,
We need to find the first three terms of the sequence,
Therefore, aₙ₋₁ = 5 and a₁ = 2 then
a₂ = 5 × a₁ = 5 × 2 = 10
a₃ = 5 × a₂ = 5 × 10 = 50
Therefore,
The first 3 terms are 2, 10, 50
Hence, the first three terms of the given sequence are 2, 10, 50
Learn more about sequence, click;
https://brainly.com/question/30262438
#SPJ3
HELP ASAP!!!!!
An equation is shown.
3^m x 3^n = 3^-3
What are possible values for m and n?
m =
n =
Show work too pls
Answer:
3^m x 3^n = 3^-3
All values for m and n, when m+n= -3.
m=1,n=-4;m=-1,n=-2......
Step-by-step explanation:
What is the solution to the equation 1/2 (x - 8) = 3/2x + 7
Answer:
x= -11
Step-by-step explanation:
1/2(x-8)=3/2x+7
distribute
1/2x-4 = 3/2x+7
subtract 1/2x from both sides
1/2x cancels out
-4 = 1x+7
subtract 7 from both sides
-11 = 1x (1x is the same as "x")
Answer:
x=-11
Step-by-step explanation:
The solution to the equation is -11.
First I set up the equation.
1/2(x-8)=3/2x+7
Next, I simplified the equation. 1/2x-4=3/2x+7.
Then, I added 4 to both sides. 1/2x=3/2x+11.
Next, I subtracted 3/2x on both sides. -1x=11.
Then, I divided -1 on both sides, so I would have x by itself.
x=-11.
In conclusion, the solution to the equation is x= -11.
To check to make sure this is the correct answer, I put -11 into the x values of the equation.
1/2(-11-8)=3/2(-11)+7
Both sides of the equation equal -19/2.
I NEED HELP PLZ, WILL MARK BRAINLIEST!!
21Answer:
Step-by-step explanation:
find the length of x please.
Answer:
x = 7.5
I used the Pythagorean theorem:
[tex]c=\sqrt{x} a^2+b^2=\sqrt{x} 4.5^2+6^2=7.5[/tex]
Step-by-step explanation:
Have a nice day!
and can I maybe have brainliest? Thanks!
PLS HELP ASAP PLS PLS PLS PLS !!!!!!
Type you answer NUMBER ONLY, no units (degrees) *
Answer:
59°
Step-by-step explanation:
180°-116°=64°
57°+64°=121
180°-121°=59°
A line passes through the point (6,-1) and is perpendicular to the line with equation -2x + 3y = -6.
TyryyAnswer:
Step-by-step explanation:
Bjmed
can u help plz
the binary is a secret message, not relevant to the question.
01110100 01101000 01100001 01101110 01101011 01110011 00100000 01100110 01101111 01110010 00100000 01110100 01101000 01100101 00100000 01101000 01100101 01101100 01110000 00100001 00100000 01101001 01101100 01111001
Answer:
All false.
Step-by-step explanation:
The ratio is 3:4.
For every 3 girls, there are 4 boys.
If a class has 7 people, 3 are girls and 4 are boys.
Hence the fraction of boys is 4/7 and girls are 3/7.
Therefore, a and b are False.
The number of boys in the class cannot be 6. If the number of boys is 6, then the number of girls must be 4.5 to maintain the 3:4 ratio, but there cannot be half a girl. So, c is also false. d) the number of pupils in the class is 12. To maintain a 3:4 ratio, the number of pupils in the class must be in multiples of 7. Hence, d is also false.
15 + 10y - 4xy - 6 6.
Answer:
Step-by-step explanation:
15+10y−4xy−66
Soustraire 66 de 15 pour obtenir −51.
−51+10y−4xy
Answer:
-4y
Step-by-step explanation:
15 + 10y - 4xy - 6=-4y
SOLVE !!!!!!!!!!!!!!!!!!!!!
9/ (-3) + 6 x 2 – 7
SHOW YOUR WORK
Answer:
Step-by-step explanation:
9/(-3)+6x2-7
9/-3 = -3,
6 x 2 = 12,
-3 + 12 = 9,
9-7 = 2
Answer:
2
Step-by-step explanation:
9/(-3)+6*2-7
-9/3+6*2-7 simplify 9/3 to 3
-3+6*2-7
-3+12-7
9-7
2
What is the image of the point (-2, 4) after a rotation of 270° counterclockwise
about the origin?
pls help :) i dont understand
Answer:
(-2,2), (6,6)
Step-by-step explanation:
..........
The tree diagram shows the sample space of rolling a cube with faces numbered 1–6 and flipping a fair coin. What is the probability of rolling the number 5 and the coin landing heads up?
Answer:
It’s C 1/12
Step-by-step explanation:
Find the value of x.
Answer:
this question doesnt make a lot of sence but i think its 90
Step-by-step explanation:
45+45 = 90
since ats a triangle 180-90 = 90
also the right angle with the red aquare is 90 degrese so i its 90
Answer:
Its a vertical angel, x + 45 =90.
Step-by-step explanation:
Find area of triangle 15 ft and 18 ft
Answer:
hbb
2
Step-by-step explanation:
Write a system of equations to describe the situation below, solve using any method, and Fill in the blanks.
Natalie is a salon owner. Yesterday, she did 3 haircuts and colored the hair of 1 client,
charging a total of $239. Today, she did 2 haircuts and colored the hair of 1 client, charging a
total of $192. How much does Natalie charge for her services?
Natalie charges $___
for a haircut and $__
for a coloring
Answer:
1 haircut = 47 dollars
1 colouring = 98 dollars
Step-by-step explanation:
Let [tex]x[/tex] be equal to the cost of 1 haircut.
Let [tex]y[/tex] be equal to the cost of 1 colouring treatment.
1) Form equations
Equation 1: 3 haircuts + 1 colour = 239 dollars
⇒ [tex]3x+y=239[/tex]
Equation 2: 2 haircuts + 1 colour = 192 dollars
⇒ [tex]2x+y=192[/tex]
2) Solve the system of equations
Subtract equation 2 from equation 1 to cancel out y (elimination)
- [tex]3x+y=239\\2x+y=192[/tex]
⇒ [tex]3x-2x+y-y=239-192\\x=47[/tex]
Therefore, Natalie charges 47 dollars for 1 haircut.
Plug x back into one of the equations to solve for y
[tex]2(47)+y=192\\94+y=192[/tex]
Subtract both sides by 94
[tex]94+y-94=192-94\\y=98[/tex]
Therefore, Natalie charges 98 dollars for 1 colouring treatment.
I hope this helps!
Can someone help me!?
Answer:
1. Area: 5963
2. Permiter: 312
3. perminter
4.Area
Step-by-step explanation:
Hi :D
The diameter of a circle is 16 in . Find its circumference in terms of pi?
Answer:
Circumference of circle = πd = π × 16 =16 π in.
or
circumference of circle = 2πr = 2×π×8= 16 π in.
-2 (7– 5x – 3) = -2(7 + -5x x +
-14 +
10 х +
=
-14 +
10 х
+
10 х
Answer:
Step-by-step explanation:
make the question clearer homie urs makes no sense
Find the length of side a.
5
3
O A. 16
O B. 34
O c. 2
O D. 4
Answer:
D
Step-by-step explanation:
a=[tex]\sqrt{c^{2} -b^{2} }[/tex]
[tex]\sqrt{5^{2} -3^{2} } =[/tex]4
a=4
REMEMBER THAT THE RISE TESTS DO NOT GO TOWARDS YOUR GRADE, THEY ARE ONLY FOR THE SHOOLS TO SEE HOW WELL THEY ARE TEACHING YOU.
Remember that the Rise tests are only for your state. Different states have different tests. My state has the Peaks test.