Answer:
The value of x is -3.
Step-by-step explanation:
It is given that:
y=3x+5 Eqn 1
y=4x+8 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
4x + 8 = 3x + 5
4x - 3x = 5 - 8
x = -3
Therefore,
The value of x is -3.
It cost $660 to put on the school play. How many tickets must be sold at $6 a piece in order to make a profit?
Answer:
the answer is 110
Step-by-step explanation:
660÷6=110.
solving 2 step inequalities give three solutions for each inequality -3(1-z)<9
Answer:
-3, -2 and -1
Step-by-step explanation:
Given the inequality -3(1-z)<9
Expand
-3(1)-3z <9
-3-3z <9
Add 3 to both sides
-3-3z+3<9+3
-3z<12
Divide both sides by -3
-3z/-3 >12/-3
z > -4
The required solutions are values greater than -4 and they are -3, -2 and -1
Find the inequality represented by the graph.
Answer:
y > 4x - 2
Step-by-step explanation:
y-intercept is at -2
slope is rise by 4, run by 1
if you don't know where to shade, select a point and plug it in to see if T or F
example (0, 0)
is 0 > 4(0) - 2
is 0 > -2 True, so shade to the left because this is where (0,0) is
Answer:
Step-by-step explanation:
Analyze what each part of the inequality means mathematically.x is the solution of the problem, the quantity you are looking for.6x means that, for a reason given in the problem, the quantity you are looking for is multiplied by 6.− 18 means that, for a reason given in the problem, 18 is subtracted from 6x.≤ 18 means that after multiplying the solution x by 6 and subtracting 18 from it, the result is at most 18.Think of some different situations in which a quantity x might be multiplied by 6.You plant 6 seeds from x different seed packets, and you want to know from how many different seed packets you plants seeds.Build on the situation and adjust it to create a verbal description that takes all of the information of the inequality into account.Elrich planted 6 seeds from each of x different seed packets in his garden. To plant these seeds, he had to remove 18 plants that were already in the garden. Including the plants he removed and the seeds he planted, he expected to have at most 18 plants in the garden. From how many different seed packets did Elrich recently plant seeds?
On a surface you have 200,000 bacteria
You use Clorox, which kills 99.9% of germs
How many germs are left? (MATH QUESTION)
Answer:
200
Step-by-step explanation:
5 2/3 divided by 3/2
Please help
Answer:
I think is 3 7/9
Step-by-step explanation:
hope it helps
Answer:
fraction form: 34/9
decimal form: 3.7 (repeating)
mixed number form: 3 7/9
hope it was helpful! ^^
The graph shows a proportional relationship between the number of workers and weekly cost, in dollars, for a company in its first year. The following year, the company spends $7,200 per 12 employees. Did the rate increase or decrease the following year?
Answer:
increase
Step-by-step explanation:
each person gets 600 out of 7200 for 12 employis
Observe the graph below. The scale factor used to dilate ABC was...
Answer:
3
Step-by-step explanation:
AB = 1 unit
A'B' = 3 units
The scale of dilation = A'B'/AB
Therefore:
scale of dilation = 3 units / 1 unit = 3
This means that ABC was dilated or enlarged in size by multiplying every of its segment by 3. In essence, A'B'C' is 3 times the size of ABC.
NOTE: Angles not necessarily drawn to size . what is x?
Answer: 45
Step-by-step explanation: 160-115= 45 you do this because the angles are across the vertex from each other.
Answer:
X=45
Step-by-step explanation:
Method 1 ( the long one)
So AED and CEB are vertical angles, that means that the are the same and have the same value.
So 115 plus x equal 160.
115 + x = 160
from there we just have to subtract 115 from both sides to get x by itself.
115 + x = 160
-115 -115
_________________
x=45
Method 2 (short one
If you know that those are vertical angles, then just subtract 115 from 160 and there you go. You get 45.
Write an equation to represent the measures of the angle
Use this list of numbers to answer the following questions:
0,4, -2, 2/3, -1.8, 16, 3.2,-5/4
1. Which numbers are rational numbers that are not integers?
2. Of the remaining numbers, which are integers but not whole numbers?
3. Of the remaining numbers, which are whole numbers?
1.
ans= -1.8 and 3.2,
2.
ans= -5/4 and 2/3
3.
ans= 0,4 and 16
Hope it helps.
Answer:
1. 2/3 ,-5/4 , -1.8 , 3.2
2. -2 and 0
3. 4 and 16
Step-by-step explanation:
1.Rational numbers should have a numerator and a denominator. An integer should not be a decimal or a fraction.
In this case : 2/3 ,-5/4 , -1.8 , 3.2
2. Whole numbers are counting numbers. An integer can be non-negative, positive, negative or zero.
In this case : -2 , 0
3. Whole numbers remaining are ;
4 and 16
2x + 5y = -6
y-intercept: ( , )
x-intercept: ( , )
Myra’s flower bed has three types of flowers. There are 7 lilies, 5 tulips, and 6 zinnias. What does the ratio 5 : 13 represent in this situation? Use a model to show your work. Explain your reasoning.
Answer:
m
Step-by-step explanation:
The ratio 5 : 13 in this situation represents number of Lilies to the number of tulips and zinnias in Myra's flower bed.
A ratio shows us the number of times a number contains another number.
Given that Myra’s flower bed has three types of flowers. There are 7 lilies, 5 tulips, and 6 zinnias. Therefore, the ratio of number of Lilies to the number of tulips and zinnias are,
Ratio = Number of Lilies : Number of tulips and zinnias
Ratio = 5 : (7+6)
Ratio = 5 : 13
Hence, the ratio 5 : 13 in this situation represents number of Lilies to the number of tulips and zinnias.
Learn more about Ratios here:
https://brainly.com/question/1504221
#SPJ2
How does the graph below change between point A and point B?
The line is an upside U shape from A to B
This means the graph increases, then decreases.
NEED FAST HURRY
A candy store sells caramels and milk chocolate by the pound the table below shows the total cost in dollars for a pound of each type of candy the store sells
Caramels: $9.28
Milk Chocolate: $12.80
How much more is the cost for 1 3/4 pounds of milk chocolate than the cost for 1 3/4 pounds of caramels?
Answer:
$6.16
Step-by-step explanation:
Answer:
Caramels=$16.24
Milk chocolate=$22.40
All together= $29.04
Step-by-step explanation:
Tina ate 21 starbursts. If she ate 35% of the package of Starbursts, how many Starbursts are in the package?
Show your work
Answer:
60 starbursts
Step-by-step explanation:
We can set up an equation to find the answer. 21/x=0.35/1 because we're trying to find how many starbursts make up 100% of the package. So then to solve, we take 21x1 and then divide that by 0.35. From this we find that x=60.
please help i need help
Answer:
all i think
Step-by-step explanation:
because you just do the math 3 times 3 five times and do the same with the next
A principal of 2200 is invested at 9% interest, compounded annually. How much will the investment be worth after 6 years?
Answer:
it would be worth 3388
Step-by-step explanation:
9% of 2200 is 198
198×6=1188
1188+2200=3388
how to solve the volume formula for cylinders using pi
The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h . i think the answer is this
A rectangle has a perimeter of 200m. The length to width ratio is 3:2. Find the LENGTH
Answer:
length = 60m
Step-by-step explanation:
let '3x' = length
let '2x' = width
3x + 3x + 2x + 2x = 200
10x = 200
x = 20
length = 3x = 3(20) = 60
FIND THE X AND Y-INTERCEPTS
5X-2Y=10
Step-by-step explanation:
5x - 2y = 10
-5x -5x
----------------------
-2y = 10 - 5x
/-2 /-2
--------------------
y = -5 + 2.5x
The graph plots four equations, A, B, C, and D: Line A joins ordered pair negative 6, 16 and 9, negative 4. Line B joins ordered pair negative 2, 20 and 8, 0. Line C joins ordered pair negative 7, negative 6 and 6, 20. Line D joins ordered pair 7, 20 and 0, negative 7. Which pair of equations has (0, 8) as its solution? (4 points) Equation A and Equation C Equation B and Equation C Equation C and Equation D Equation B and Equation D
Answer:
d is 6,6 and 4,is -94 and plus 8
Step-by-step explanation:
List the key features of the quadratic equation y = x2 + 6x - 16.
A. x-intercepts: (-8,0) and (2,0), y-intercept: (0,–16), vertex: (-3,-25).
B. X-intercepts: (-8,0) and (2,0), y-intercept: (0,–6), vertex (-3,-25).
C. X-intercepts: (8,0) and (-2,0), y-intercept: (0.-16), vertex: (-3,-25).
D. x-intercepts: (-8,0) and (2,0), y-intercept: (0,16), vertex: (-3,-25).
Answer:
Correct choice is A
Step-by-step explanation:
Quadratic Function
The vertex form of the quadratic function has the following equation:
[tex]y=a(x-h)^2+k[/tex]
Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.
The x-intercepts are the points where the graph of the function crosses the x-axis, they are also called zeros or roots. They can be found by solving the equation y=0,
The y-intercepts are the points where the graph of the function crosses the y-axis. They can be found by setting x=0.
We are given the function:
[tex]y = f(x)=x^2+6x-16[/tex]
Find the y-intercept. x=0:
[tex]f(0)=0^2+6*0-16=-16[/tex]
y-intercept: (0,-16)
Find the x-intercepts, y=0. Solve the equation
[tex]x^2+6x-16=0[/tex]
Factoring:
[tex](x-2)(x+8)=0[/tex]
Which gives x=2, x=-8.
X-intercepts (2,0) (-8,0)
This leaves us only choice A as correct. But we'll compute the vertex also.
Completing squares:
[tex]y=x^2+6x-16=x^2+6x+9-16-9=(x+3)^2-25[/tex]
Comparing with the vertex form of the function, we have: h=-3, k=-25, thus the vertex is located at (-3,-25)
This confirms that the correct choice is A
Please hurry it’s missing
Answer:
the answer is 1 28/104 or one whole and 28 over 104 :p
$7.00 × 20 = $140 in 40 hours
any helps !
Answer:
$280 in 40 hours!
(Just multiply)
Answer:
This is correct
Step-by-step explanation:
7.00 multiplied by 2 on both sides will give you an equivalent answer which is 140 and 40 hours. good job!
find the mean of the first six multiples of 4
Answer: 14.
Step-by-step explanation:
What is (10/8)X2+8X9X3?
Answer:
437/2
Step-by-step explanation:
Answer:
Simplify the expression.
Exact Form:
437 /2
Decimal Form:
218.5
Mixed Number Form:
218 and 1 /2
Step-by-step explanation:
Have a nice day! I hope this helps!
WORTH 15 POINTS 15) The Feldmans bought their first house for $20,000. Over the years they moved three times into bigger and bigger houses. Now, 37 years later, they are ready to retire and want a smaller house like the first one they bought. If inflation in property values has averaged 3.7% per year during that time, how much will such a house cost them now? (Round your answer to the nearest dollar.) Show your work!!
What is the GCF for the terms in the following expression?
[tex]15x + 30y - 10[/tex]
What is the factored expression?
hint: it will look something like this
[tex]4 (2x + 4y - 6)[/tex] this is not the answer!
Answer:
5 (3x + 6y - 2)
Step-by-step explanation:
GCF is 5. Sorry late response
A pair of shoes at a store costs $7.50. The total cost, in dollars is given by the function C(s) = 7.5s.
What is the cost of 4 pairs of shoes?
A
$35
B
$30
C
$25
D
$50
Select two ratios equivalent to the ratio of white socks to brown socks. pls help
Answer:
Step-by-step explanation:
You have to do total ratio
that will give you 20/15