Answer:
Now, we’re going to consider an example of proportional relationship in our everyday life: When we put gas in our car, there is a relationship between the number of gallons of fuel that we put in the tank and the amount of money we will have to pay. In other words, the more gas we put in, the more money we’ll pay.
Step-by-step explanation:
hope this helps
Answer:
Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality". Some textbooks describe a proportional relationship by saying that " y varies proportionally with x " or that " y is directly proportional to x .") This means that as x increases, y increases and as x decreases, y decreases-and that the ratio between them always stays the same.
Find the measure of the missing angle.
45 degree angle
X=-8
Answer:
47238
Step-by-step explanation:
A bookstore had 45 copies of a magazine. Yesterday, it sold 2/3 of them. Today, it sold 2/5 of what remained. How many copies does the bookstore have left?
Answer:
After the first day, 1/3 of the original amount remained:
... (1/3)·45 = 15
After the second day, 2/3 of that amount remained:
... (2/3)·15 = 10
The bookstore has 10 copies left.
Step-by-step explanation:
Answer:
Step-by-step explanation:
45 copies and sold 2/3= 30 sold so 15 left
15 copies and sold 2/5= 6 sold so 9 left
Help with these 3 please
7.25 x 2 1/2= WHAT PS HELPPP!!!!
Answer:
Its either 18.125 or 145 / 8
Step-by-step explanation:
Answer:
sorry, 18.125 what the other person said
Step-by-step explanation:
hope that can help!!
There are 817 students enrolled at school, and 239 are remote. What percentage of school students are remote.
Which ordered pair is a solution to the linear inequality given below?
3x + 4y > 20
(-5,1)
(0,-3)
(-4,2)
(2,7)
Answer:
(2, 7 )
Step-by-step explanation:
Substitute the coordinates of each pair into the left side of the inequality and compare the result to the right side.
(- 5, 1 )
- 15 + 4 = - 11 < 20 ← not a solution
(0, - 3)
0 - 12 = - 12 < 20 ← not a solution
(- 4, 2 )
- 12 + 8 = - 4 < 20 ← not a solution
(2, 7 )
6 + 28 = 34 > 20 ← solution
The ordered pair which is correct for the given inequality will be equal to (2, 7). Hence, option D is correct.
What is inequality?Inequalities are mathematical expressions where neither side is equal. In inequality, as opposed to equations, we compare the two values. Less than (or less than and equal to), larger than (or greater or equal to), or not similar to signs are used in place of the equal sign in between.
As per the given information in the question,
The given inequality is,
3x + 4y > 20
For point (-5, 1)
3(-5) + 4(1) > 20
-11 > 20, this is incorrect.
For point (0, -3)
3(0) + 4(-3) > 20
-12 > 20, this is incorrect.
For points (-4, 2)
3(-4) + 4(2) > 20
-4 > 20, this is incorrect.
For points (2, 7)
3(2) + 4(7) > 20
34 > 21, this is correct.
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You are a sales clerk in a clothing store. You receive a salary of $320 per week plus a 5% commission on all sales. Write an equation to represent your weekly salary. (Let y equal the weekly salary and x equal the amount of sales.) What are the slope and y-intercept of your equation?
Answer:
slope: 0.05
y-intercept: 320
Step-by-step explanation:
y is the total weekly salary and x is the sales
there is a constant salary of $320, which will be the constant in the equation.
y = mx + b
y = mx + 320
we know there is a 5% commission on all sale, which we can convert to the fraction 0.05.
y = .05x + 320
Now we can see that the slope is .05 and the y-intercept is 320
a UPS delivery man earns $0.60 per mile driven.How many miles did he drive if he received at $42
Answer:
70 miles
Step-by-step explanation:
Divide 42 by 0.60 = 70
Multiply 70 * 0.60 = 42.
Shawn said that in standard notation,
7.142 x 107 will have 7 zeros after the
2 because the exponent is a 7. Is he
correct? Why or why not?
Answer:
This is incorrect.
Step-by-step explanation:
You move the decimal 7 places to the right after the 7. Since 2 is the third digit, you're adding 4 more zeros.
help I need this asap I will give the brainiest
1. What absolute value expression can be written to determine the distance between 63 feet above sea level and 48 feet below sea level?
Given:
The distance between 63 feet above sea level and 48 feet below sea level.
To find:
The absolute value expression for the given situation.
Solution:
We have,
Distance above the sea level = 63 feet
Distance below the sea level = -48 feet
Here, negative sign represents the distance in below the sea level.
So, absolute value expression that can be written to determine the distance between 63 feet above sea level and 48 feet below sea level is
[tex]Distance=|63-(-48)|[/tex]
[tex]Distance=|63+48|[/tex]
[tex]Distance=|111|[/tex]
[tex]Distance=111[/tex]
Therefore, the required absolute expression is [tex]|63-(-48)|[/tex] and distance is 111 feet.
A 12 foot ladder is leaning up against a wall. If the angel made between the ladder and the ground is 80 degrees. How far up can the ladder reach the wall? Round to the nearest tenth of a foot
Answer:
11.8 feetStep-by-step explanation:
Given
Length of the ladder = 12foot
angle of elevation = 80 degrees
Required
Height of the wall (opposite side)
The set up will form a right angled triangle where
length of the ladder is the hypotenuse
height of the wall is opposite;
Using SOH, CAH, TOA trig identity
According to SOH
sin 80 = opp/hyp
sin80 = opp/12
opp = 12sin80
opp = 11.82 feet
Hence the height of the wall is 11.8feet (to the nearest tenth)
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a I think
Step-by-step explanation:
I dont know how to explain if its not im sorry
|10+4x|<14 how do you solve this?
Answer:
-6 < x < 1
Step-by-step explanation:
-14 < 10 + 4x < 14
Subtract 10 from both sides
-24 < 4x < 4
Divide both sides by 4
-6 < x < 1
Answer: - 6 < x < 1
|10 + 4x| < 14
⇔ -14 < 10 + 4x < 14
⇔ -14 - 10 < 4x < 14 - 10
⇔ - 24 < 4x < 4
⇔ -24/4 < x < 4/4
⇔ - 6 < x < 1
Step-by-step explanation:
it cost $11 for 15 granola bars what is the unit price in dollars per granola bar, rounded to the nearest hundred
Answer:
It is $0.73 for each granola bar. 11/15
Step-by-step explanation:
Solve for u.
6u=78
U =
Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes.
If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce bags?
A. Yes; Machine A and Machine B make 77.5 ounces in 10 minutes. 77.5 > 72, so there will be enough popcorn.
B. Yes; Machine A and Machine B make 87.5 ounces in 10 minutes. 87.5 > 72, so there will be enough popcorn.
C. No; Machine A and Machine B make 67.5 ounces in 10 minutes. 67.5 < 72, so there will not be enough popcorn.
D. No; Machine A and Machine B make 30.75 ounces in 10 minutes. 30.75 < 72, so there will not be enough popcorn.
Answer:
B i think
Step-by-step explanation:
can u mark me brainliest plz
Use the symbols +, -, x, and = to make the number sentence true.
Option 1. (8 ÷ 3) - 2³x 17 = 33
Option 2. (8 + 3) - 2³ x 17 = 33
Option3. (8 x 3) - 2³+ 17 = 33
Option4. (8-3) x 2³+ 17 = 33
Answer:
it will be option 3 if isnt pls tell me and I'll work if out
(8 x 3) - 2³+ 17 = 33 is the true statement and so Option 3 is the correct answer.
What is an Equation ?An equation is a statement that links variables to constants and even with other variables and is helpful in solving complex problems.
The options given below needs to be checked for
Left Hand Side = Right Hand Side
Option 1
LHS = -133.33
RHS = 33
Option 2
LHS = -125
RHS = 33
Option 3
LHS = 33
RHS = 33
Therefore Option 3 is the correct answer.
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GIVING BRAINLEST TO THE PERSON WHO ANSWERS IT FIRST AND CORRECT!!
Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 2.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards.
Answer:
read below explanation
Step-by-step explanation:
KEY= C;CAROL T;TINO B;BAXTER
inches: C=90 T=90 B=90
Feet: C=7.5 T=7.5 B=7.5
Yards C=2.5 T=2.5 B=2.5
HELP!!!
Mr. Suarez drives at a speed of 60 miles per hour to visit his brother who lives 200 miles away
from his home. Write an equation is slope intercept form. that represents the distance D in miles from his brothers home and T is the time in hours he had been driving.
the second part is Mr.Suarez is now traveling to her sister after 2 hours she is 75 miles away if she is still driving 60 miles per hour. Write an equation in point slope that represents his new situation
Answer:
d=-60h+120 First Part
d=-60h+160
hope this helps, if not, your free to give me one star (if you want to).
list five common multiples for 8 and 14
Answer:
56, 112, 168, 224, and more
What is (5/4)³ ? Just asking-
Answer: 1.953... or 125/64
Step-by-step explanation:
2. need help with this question
Answer:
First = Poppy seed = 3x10^-4 grams = 0.0003 grams
Second = sesame seeds = 3.64x10^-6 grams = 0.00364 grams
third = 250 pumpkin seeds 21 grams = one seed 0.084 grams
Step-by-step explanation:
3.64x10^-6 kilograms *1000gr/Kilograms = 0.00364 grams
21/250 = 0.0084 grams one seeds
factor of 7+14x+7x 2
Answer:
7(3+2x)
Step-by-step explanation:
A local restaurant serves breakfast. They use 124 cups of pancake mix every hour. It takes 114 cups of mix to make one pancake. The pancakes are all equal in size.
About how many pancakes can the restaurant make in two hours?
A 99 pancakes
B 198 pancakes
C 251 pancakes
D 310 pancakes
198 pancakes can the restaurant make in two hours.
What is Equation?Two or more expressions with an equal sign is called as Equation.
The restaurant can make 199 pancakes in two hours.
Given: Total number of cups of pancake mix used in 1 hour = 124
Mix required for each pancake 1 1/4=5/4.
Number of cups of pancake mix used in 2 hours = 2 x 124 = 248
Number of pancakes made = (Number of cups of pancake mix used in 2 hours ) ÷ (Mix required for each pancake )
=248÷5/4
=248×4/5
=198.4
Hence 198 pancakes can the restaurant make in two hours.
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Plz help. Write the slope intercept form of the equation
Answer:
2nd option is correct
Step-by-step explanation:
x +2y=14
2y = -x + 14
y= -x/2 +7
Answer:
-1/2
Step-by-step explanation:
So I am not certain but there is a website for things these.
Find the slope of the line. (0,-1) (3,-2)
Answer:
-1/3
Step-by-step explanation:
m = (y2-y1) / (x2-x1)
m = (-2-(-1)) / (3-0)
m = (-2+1) / 3
m = -1/3
Answer:
-1/3
Step-by-step explanation:
equation is y2-y1/x2-x1
So the second y (-2) minus the first y (-1) is -1
And 3-0 is 3. So 3/1
Una fábrica envasadora recibe diariamente distintos tipos de aceite en las siguientes cantidades: 195 l, 275 l, 315 l, 460 l y 525 l. Puesto que los aceites son diferentes, los envasarán en diferentes garrafas. Sin embargo, quieren utilizar el menor número posible de garrafas, que todas tengan la misma capacidad y que no sobre ni una gota de aceite.
Answer:
Se calcula el maximo comun divisor.
195/5 = 39
275/5 =55
315/5 =63
460/5= 92
525/5 =105
Se deben utilizar 354 garrafas
Step-by-step explanation:
Descomponemos cada número en factores primos.
Después, señalamos los factores comunes.
A continuación, en cada uno de los comunes, escogemos el factor con menor exponente.
Y por ultimo, multiplicamos los factores elegidos.
195 3 275 5 315 3 460 2 525 3
65 5 55 5 105 3 230 2 175 5
13 13 11 11 35 5 115 5 35 5
1 1 7 7 23 23 7 7
1 1 1
As an estimation we are told £3 is 4 euros convert £36 to euros.
Answer:
48
Step-by-step explanation:
3*12=36
4*12=48
Can I have brainliest?
Solve 8x - 5y = 14 for y.
Answer:
y=-14x/5+8x/5
Step-by-step explanation: