Answer:
Step-by-step explanation:
Use FOIL method.
F - First ; O - Outside ; I - inside ; L - last
(x + 3)(x - 4) = x*x + x*(-4) + 3*x + 3*(-4)
= x² - 4x + 3x - 12
= x² - x - 12
HELP I NEED HELP ASAP
Answer:
what do you need help with what -??
Step-by-step explanation:
For the following expression, combine like terms and write an equivalent expression with fewer terms.
3x+5x−1
Answer:
8x - 1
Step-by-step explanation:
3x +5x - 1
8x - 1
This is correct
Answer:
8x-1
PLZ MARK AS BRAINLIEST
Step-by-step explanation:
3x+5x−1 =
(3x+5x)-1 =
8x-1
Kevin, Luke and mat share £200 in the ratio 1:4:3 how much more money does Luke receive than Kevin
Answer:
£75
Step-by-step explanation:
sum the parts of the ratio, 1 + 4 + 3 = 8 parts
Divide the amount by 8 to find the value of one part of the ratio
£200 ÷ 8 = £25 ← value of 1 part of the ratio, then
4 parts = 4 × £25 = £100 ← Luke's share
Thus
£100 - £25 = £75
Luke receives £75 more than Kevin
Find the x- and y-intercepts of the graph of x– 10y = 31. State your answers as
whole numbers or as improper fractions in simplest form.
Answer:
x -intercept (31,0)
y-intercept (0,-31/10)
Step-by-step explanation:
x-10y=31
x-10(0)=31
x=31
x-10y=31
0-10y=31
-10y=31
y=-31/10
What is the value of Q?
Answer:
52 degrees
Step-by-step explanation:
What is constant proportionality
Answer:
The constant of proportionality is the ratio between two directly proportional quantities.
Step-by-step explanation:
Line p passes through point (0,8) and is perpendicular to the graph of y=1/4x+2 line q parallel to line p and passes through point (-3,6) which is the equation of line q in slope intercept form
A. Y=1/4x+6
B. Y=-1/4x+8
C. Y= 4x-8
D. -4x-6
Alice spins a spinner and rolls a number cube labeled 1-6. the spinner and number cube are shown.
what is the probability that Alice's spinner will land on green and she will roll a 6?
Answer:
Step-by-step explanation:
first count up the numbers on the spinner and the die cut out the number till get the number but i will guess 2
16
| 27
Find the exact value of z.
a² + b² = c²
First find out the length of the line in the middle. We know that a² + 16² = 27², which means a = √473
Now write out all the equations for all the right triangles in the diagram.
Let the side of the base of the triangle be x and the remaining sides of z be y.
x² + 27² = (16+ y)²
y² + (√473)² = x²
From here solve and find y. Once you get y, y + 16 is your z, the answer.
15. Two angles are supplementary. One
angle is 8 times larger than the other.
Find the measure of the two angles.
Answer:
82 and 98 degrees.
Step-by-step
Supplementary angles are equal to 180 degrees. Let's assume both are 90 degrees for both angles. You would then do the following:
90-8= (for angle 1)
90+8= (for angle 2)
Getting 82 and 98 degrees.
1. Make your own example in describing the two parts of a measurement:
Nonstandard units of
of measurement and Standard units of
measurement.
Step-by-step explanation:
standard unit of measurement : it is typically used within each measurement system such as inches , feet , kilograms etc.
non standard unit of measurement : it is a type of measurement used by our own body parts to measure
The ratio of yellow sweets to purple sweets is 5:4.
Alice eats 3 purple sweets and the ratio is now 5:3.
Work out how many sweets there were at the beginning.
Answer:
27
Step-by-step explanation:
The ratio of yellow : purple = 5 : 4 = 5x : 4x ( x is a multiplier )
After Alice eats 3 purple sweets, then ratio is
5 : 3 = 5x : 4x - 3
Express the ratio in fractional form, that is
[tex]\frac{5}{3}[/tex] = [tex]\frac{5x}{4x-3}[/tex] ( cross- multiply )
5(4x - 3) = 15x
20x - 15 = 15x ( subtract 15x from both sides )
5x - 15 = 0 ( add 15 to both sides )
5x = 15 ( divide both sides by 5 )
x = 3
Then
number of sweets at beginning = 5x + 4x = 9x = 9(3) = 27
x/4 = 1/3 what is x?
Step-by-step explanation:
Given
[tex] \frac{x}{4} = \frac{1}{3} \\ cross \: multiply \\ 3x = 4 \\ x = \frac{4}{3} [/tex]
Hope it will help :)
Answer:
1/3×4 = 1, 3
x is 1,3
Step-by-step explanation:
hope this helps!
Biologists estimate deer populations by sampling a small area and using that information to estimate the entire
population of a large area. They use the equation p= na to estimate p, the population of deer in a acres of land, where
n is the number of deer per acre determined from the sampling. A biologist determines that 1,800 deer populate an area
of 150 acres. What value of n did the biologist find in the initial sampling of the population?
12
B 83
1,650
270,000
Daqui a 5 anos karina terá 37 anos. usando a letra X, escreva uma equação que permita calcular a idade que karina tem hoje. Me ajuda pfvrr
Answer:
x + 5 = 37
Step-by-step explanation:
Hoje tem x anos.
Daqui a 5 anos será 5 anos mais velha. A sua idade será x + 5 anos.
Daqui a 5 anos, a sua idade será 37 anos.
x + 5 = 37
the alpha recruitment agency is advertising a high-profile employer-paid job as vice president of it operations. the fee is 25% of the first month’s pay. if the job pays x dollars annually, express the agency’s fee algebraically. answer pls
Answer:
0.25x
Step-by-step explanation:
got it right on cengage
A cuboid is 12 cm broad and 10 cm high. If its volume is 1800 cm³, find its length.
Answer:
it's length is 15cm
Step-by-step explanation:
let a represent the length
a × 10 ×12 = 1800
a×120= 1800
a = 1800÷12
a=15cm
1800=L×h×b
1800=L×10×12
1800=120L
L=1800/120
L=15cm ans..
HELP DUE IN 20 MINS!
What is the Scale Factor? Use a fraction in simplest form to represent your answer.
Scale Factor:
Answer:
5/4Step-by-step explanation:
Scale factor is the ratio of corresponding sides
15/12 = 5/410/8 = 5/47.5/6 = 5/4Answer:
5/4
Step-by-step explanation:
7.5/6=1.25
15/12=1.25
10/8=1.25
1.25 is basically 5/4 in a fraction
So 5/4
Rememeber that the Scale factor is the ratio of correspondind sides
Joshua works in a department store selling clothing. He makes a guaranteed salary of
$350 per week, but is paid a commision on top of his base salary equal to 5% of his
total sales for the week. How much would Joshua make in a week in which he made
$775 in sales? How much would Joshua make in a week if he made x dollars in sales?
Answer:
contesta la pregunta tú sólo déjame en paz
Denise and Aaliyah had lunch at the mall. Aaliyah ordered three slices of pizza and two waters. Denise ordered two slices of pizza and three waters. Aaliyah's bill was $6.00, and Denise's bill was $5.25. What was the price of one slice of pizza? What was the price of one water?
Liana spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 shirts then how many of each kind did she buy?
Mr. Velazquez purchased two donuts and three cookies and is charged $3.30. Ashley purchases five donuts and two cookies for $4.95 at the same shop. Find the cost of one donut and one cookie.
Answer:
3x + 2y=6
2x + 3y= 5.25
1 pizza slice = $1.50
1 water = $ 0.75
Step-by-step explanation:
u can write the equations for the questions and use photo math for the rest.....hoped it helped....
Could yall help me PLEASE
estimate the circumference of a quarter whose diameter measures 1.205 inches.
7.6 in.
1.9 in.
2.4 in.
3,6 in.
Answer: 3.6
Step-by-step explanation:
(Not the best at math but I am an above level student)
C= pi x diameter
C= pi x 1.205
C= 3.7
What is the equation of the line that passes through the point (3, +2) and has a
slope of
2/3
Answer:
QUIT CHEATING JK THE ANSWER IS y = 2/3x + 3
Step-by-step explanation:
= 2/3(-3) + b Solve for b
1= -6/3 + b
1 = -2 + b
+2 +2
b = 3
The equation will be y = 2/3x + 3
Find the unit rate $1.25 for 5 gumballs
Answer:
it's about 25 cents per gumball and alltogether thet would be 1.25 for five gumballs hope this helps:)
Step-by-step explanation:
Write the slope intercept equation for line AB
Answer:
Y = 2
Step-by-step explanation:
The answer choices are in slope intercept form which is Y=mx+b. Since the slope is 0, there is no need for "mx" in the equation, so y= 2 where b is 2
Need help ASAP please HELP HELP HELPPPPP
Answer:
When you reflect a point across the X-axis, the X-axis coordinate remians the same, but it's opposite ( It's sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the X-axis (The line of reflection) to see where the new figure will be located
PLS PLS PLS PLS help
Im on that to, maybe i can help you !! :)
HELP ME PLEASE!!
HELP ME ANSWER A AND B
Answer:
a) 4c+3b=11.67
8c+b=12.89
b)One loaf of bread cost $2.09
One can of soup costs $1.35
Step-by-step explanation:
Let c= can of soups Let b= loaf of bread
a) To find the equation, you know that Khalil buys four cans of soup and 3 loafs of bread and 4 cans of soup for $11.67 so that means that the first equation will be 4c+3b=11.67. Then, you know that Khalil buys 8 cans of soup and one bread for $12.89. so the next equation will be 8c+b=12.89. This means the system of linear equations will be
4c+3b=11.67
8c+b=12.89
b) Use elimination to solve this. You want to make one variable from each equation the same so multiply 4c+3b=11.67 by 2. This will look like 2(4c+3b=11.67). Then simplify to get 8c+6b=23.34 and 8c+b=12.89. Because 8 and 8 are the same, you have to subtract the equations from each other making 5b=10.45. Simplify that and you get b= 2.09 so the one loaf of bread cost $2.09. Then plug 2.09 into 8c+b=12.89. It will look like this 8c+2.09=12.89. Simplify that and you get 8c=10.8. Simplify that again and you will get 1.35 so a can of soup will costs $1.35
Therefore
a) 4c+3b=11.67
8c+b=12.89
b) One loaf of bread cost $2.09
One can of soup costs $1.35
whats the answer to 5+6x=2-7
Answer:
x= -5/3
Step-by-step explanation:
hope this helps :) have a nice day !!
bus driver drove from Philadelphia to Washington D.C. He drove the first 100 km in 2 hours, the next 55 km in 1 hour, and the final 75 km in 2 hours. What is the average speed of the bus throughout the trip?
Answer: I think it’s 46
Step-by-step explanation: Because you add up the miles he drove them divide them by how long he drove
Ex 55+75+100=230 then you divide that by 5 hours = 46 per hour
can someone tell me if its proportional and why?And also where to put the points for both graphs (I NEED AS SOON AS POSSIBLE PLEASE AND DO THEM RIGHT PLSSS!!) thanks besties!!!!
Answer:
I think your trying to ask what the answer is and it would be B.
Step-by-step explanation:
Put in the X column: 0 1 2
Put in the Y column: 0 5 10
If it asks for how you know, put that it’s basically multiplying by 5s.
