Answer:
3=k
5(2k-8)-15=-2510k-40-15=-2510k-55=-2510k=-25+5510k=3030÷103=kCary is having a party and can only afford to spend no more than $40 on food. She wants to order at least 3 pizzas which cost $6 a pie, and at least 2 orders of wings that cost $8 per order. Select all the inequalities she would have to graph to determine how many pizzas and wings she could order. Let x stand for the number of pizzas and y stand for the number of wings.
y ≥ 2
x ≥ 3
3 x + 8 y ≤ 40
6 x + 8 y ≤ 40
x ≤ 3
y ≤ 2
((You can select more than one))
Answer:
A. B. and D.
Step-by-step explanation:
John is performing an experiment in which a solution alternates between a clear color and a bluish-purple color at a regular time interval. He observes that the time interval between color changes is 30 seconds (s). Sally replicates the experiment with the same solution, but at a temperature that is 10 degrees Celsius (°C) higher. What is the most likely time interval between color changes at this higher temperature?
Answer:
15 seconds
Step-by-step explanation:
The given parameters for the experiment are;
The time it takes the solution to change from a clear color to a bluish-purple color at a given temperature = 30 seconds
The temperature at which Sally replicates the experiment with the same solution = 10°C higher than the temperature the experiment was carried out by John
Given that the process involves a change in color, which is a characteristic of a chemical reaction, and that the rate of a chemical reaction increases as the temperature of the reacting system is increased, we have time it takes for the solution to change color at a temperature increased by 10°C, will be a time lesser than 30 seconds
Answer:
B
Step-by-step explanation:
(–6)² – (–7)²
I need a step by step process.
The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle
Answer:
L=8, W=4
Step-by-step explanation:
2L+2W=p
2(4)+2(8)=p
8+16=24
Answer:
length = 8 in.; width = 4 in
Step-by-step explanation:
Which of the following
represents a function?
PLEASE HELP 15 POINTS OR BRAINLIEST JUST ASK PLEASE HELP ME
Answer:
A: represents a function
Explanation:
Every other option, A, has two y for one x.
It can be a function if there is 1x for 1y.
If this was helpful, please mark brainliest. Have a beautiful day!
Choice A is not a function because x = 2 leads to more than one y value (y = 1 and y = 7 at the same time)
Choice B is not a function for similar reasoning. Here we have x = 1 lead to y = 2 and y = 5 simultaneously.
Choice D is also not a function because of the two points (5,2) and (5,4). This tells us we have x = 5 lead to y = 2 and y = 4 at the same time.
A function is only possible if you have any input lead to exactly one output. Choice C shows this. Note how it passes the vertical line test. It is impossible to draw a vertical line through more than two points on the function curve.
what is slope intercept form?
Answer:
y=mx+b
anajsjsjsjsjsjsjjsmsm
how we find persentage of 200/300
HELP ME ASAP PLZ !!!!!!!
Answer:
0.5 × 10^7
Step-by-step explanation:
1.6 divided by 3.2 =0.5
10 to the power or 14 minus 10 to the power of 7 = 10 to the power of 7
in division you must subtract the power number
Answer: C. 5.0 * 10^6
Step-by-step explanation:
1.6(10^14)
3.2(10^7)
=
(1.6)(100000000000000)
3.2(10^7)
=
160000000000000
3.2(10^7)
=
160000000000000
(3.2)(10000000)
=
160000000000000
32000000
=5000000 =
5*10^6
Brenda won 59 lollipops playing hoops at
the county fair. At school she gave two to
every student in her math class. She only
has 1 remaining. How many students are
in her class?
what two numbers multiply to -36 and add up to 5
Answer:
9 and -4
Step-by-step explanation:
Finding these 2 numbers can be found by guessing and checking. By doing this, it will get you the numbers 9 and -4.
First, test if they multiply to -36:
9(-4)
= -36
Then, check if they add up to 5:
9 + (-4)
= 5
So, 9 and -4 are the 2 numbers that multiply to -36 and add to 5
A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?
PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!!
The point (-3, -5) is on the graph of a function. Which equation must be true regarding the function?
SAAB
Of(-3) = -5
f(-3,-5) = 8
f(-5) = -3
O f(-5, -3) = -2
Answer:
F(-3) = -5
Step-by-step explanation:
I got it right on the test
Find the slope and y-intercept of the following equation (Encuentra la pendiente y la
intersección con el eje y de la siguiente seuación)
(2 Points)
y = - 3r +9
slope = -3; y-intercept = 9
slope = 9; y - intercept - 3
slope = 3; y - intercept = 3
slope = 9; y - Intercept =
- 27
Answer:
slope is -3 and y intercept is 9
Step-by-step explanation:
use y = mr + b where m is the slope and m is the y intercept
Sketch a 9 red counters and 4 yellow counters.How many zero pairs can you make?How many counters do you have after you remove the zero pairs? What do they represent
Answer:
36.75 and 1/6 ( 6 accounts equally distributed )
Step-by-step explanation:
Number of Red counters to be sketched = 9
Number of Yellow counters = 4
The number of Zero pairs that can be made = 36.75
When you remove the Zero pairs the number of counters you would have = 6 accounts ie. 1/6
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME I BEGGING YOU PLZZZZZZZZZZZZZZZ HELP!!!! (55 POINTS)
1. Evaluate 8a - b if a = 10 and b = 6
74
38
1000
9000
2. Evaluate expression if a=3 and b=4 . 4b-5a
2
1
-8
8
3. Evaluate Expressions a=3 b=4, 7a + 8b x 2
110
100
80
85
4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.
$1.95+p
$1.95-p
$1.95/p
$1.95p
5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.
g+29
29g
g-29
g ÷ 29
6) 5 + 36 ÷ 2 x 3 - 4
7
55
12
78
7)18 + (6 – 2) × 2
26
29
40
44
8.Expand -3( 2r + 5s).
-6r - 15s
-6r + 15s
-6r - 15
-6r + 2s
9. Expand and simplify 5(2 - 3y)
10 - 15y
10 + 15y
10 - 2y
10 - 3y
10.Factor: 7x + 49y
7(x + 7y)
7(x + y)
can't be factored
7(x + 48y)
11. Factor 6p − 36
6(p − 6)
2(3p − 36)
3(2p − 6)
can't be factored
12. Which expression contains exactly 3 terms?
A. 5 + 6xy
B. 8 + 2y - 5x
C. 9 + 4t
D. 24xy
13. What is the coefficient of x?8 + 5x - y
A. 8
B. 0
C. 5
D. -5
14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x
A. 2x and 4y and -3x
B. 2x and -3x and x; 4y and y
C. they are all like terms
D. there are no like terms
15. Factor 5x − 25
Answer:
1. 74 because 8(10) - 6
2.4(4) - 5(3) = 1
3. 7(3)+8(4) * 2 = 106
4. A
5.a
6. 20.5
7.26
8.a
9.a
10a
Step-by-step explanation:
5 stars and a thank you
Answer:
ok
Step-by-step explanation:
Which could be the first step in solving the equation represented by the model below?
A. Add 4 negative unit tiles to both sides.
B. Add 4 negative unit tiles to the left side, and add 6 negative unit tiles to the right side.
C. Add 4 positive unit tiles to both sides.
D. Add 6 negative unit tiles to the left side, and add 4 negative unit tiles to the right side.
Answer: A. Add 4 negative unit tiles to both sides.
Step-by-step explanation: Hope this helps
what is 111 × 111 ÷ 14
Answer:
880.071428571
Step-by-step explanation:
You could use a calculator btw but its ok happy to help :D
simplify -50 1/2+(-12.3)
Answer:
-62.8
Step-by-step explanation:
-50 1/2 + (-12.3)
= -101 / 2 - 12.3
= -101 - 24.6
2
= -125.6 / 2
= -62.8
Answer: you can use a website called math. way! Make sure its online like the website
Step-by-step explanation:
its a mathpage and it does algebra!
can someone help me with this
Answer:
The first one is 45 hours
The second is 1361
Which of the following relationships represents joint variation?
Answer:
y=7x
Step-by-step explanation:
that what I heard in math ok
You roll an eight-sided die. What is the chance that it will land on either a 2 or a 5? Write your answer as a fraction.
Answer:
2/8 and the simplified version is 1/4
Step-by-step explanation:
Answer:
2/8
Step-by-step explanation:
First you know that it is a eight- sided die. 2 or 5 are two numbers so it is 2/8.
you put all of the numbers and count them up on the top as numerators ex: 2/ Then the number of the sided die as the denominator.ex: 2/8 Hope this helped.
A grocery store sells a bag of 6 oranges for $3.90. What is the unit cost?
Pls Answer and I shall give u a- Thank You - Vielen Dank
Answer:
it would be 0.64
Step-by-step explanation:
are these two photos the same? or is there a difference?
Answer:
Yes on one picture it says -40 and on the other one it says -4 so there is a differemce.
Step-by-step explanation:
Alex chose a pair of jeans that sells for $19.50, but today all jeans are on sale for 10% off. How much will Alex save. Explain your answer.
Answer:
He saves $1.95. Instead of paying $19.50, He pays $17.55
Step-by-step explanation:
$19.50 ×10/100 = $1.95
That is the discount of the jeans. Taking
$19.50 - $1.95 = $17.55
What is the percent increase ???? Help please
Answer:
25 percent increase
Step-by-step explanation:
im pretty sure
Andre and Elena are solving this system of equations.
Y=3x
Y=9x-30
Andre’s first step is to create a new system:
3y=9x
Y=9x-30
Do you agree with either first step?
A-both strategies work
B-only the first strategy works
C-only the second strategy works
D-neither strategies work.
Answer:
A-both works
Step-by-step explanation:
one can simply sub into the second equation from the first step's one and remove an unknown, making it easy to solve
please help i don’t know how to do this
Answer:
1.) 25
2.)81
3.)49
Step-by-step explanation:
(I recommend getting a Texas instruments TI-84 you can just plug in the numbers and it does it for you :)
The momentum of an object, p, is determined by its mass, m, and its velocity, v. The formula for this relationship is shown.
P=mv
Which equation shows the formula correctly solved for v?
A. V=m/p
B. V=p/ m
C. V= p-m
D. V=pm
Answer:
b
Step-by-step explanation:
Graph.
y= 53x–4
Apparently this is way to short and I have to put in 20 more characters to get a "great" answer *eye roll* sooooooooooo blah blah blah balh there more than 20
Answer:
sorry
Step-by-step explanation:
why the hell do our teachers do this to us ;(