9514 1404 393
Answer:
30 -2d
Step-by-step explanation:
The total amount used in d days is 2d (cups). The amount remaining is the initial amount (30 cups) less the amount used. A suitable expression is ...
30 - 2d
Equalivent fraction for 5/6
Answer:
10/12 , 15/18 , 20/24
Step-by-step explanation:
What is 4x4x4x5x5 using index notation
Answer: 4^3, and 5^2. This is the answer.
Step-by-step explanation:
find the percent of the area under the density curve where x is less than 3
Answer:
The area under the density curve is equal to 100 percent of all probabilities. As we usually use decimals in probabilities you can also say that the area is equal to 1 (because 100% as a decimal is
Answer: 100%
Step-by-step explanation:
got it right on Khan
whats -9+2345+5678+4567
Answer:
I got 12581
Step-by-step explanation:
Consider the equation 3a+0.1n=123. If we solve this equation for n, which equation would result? A. 0.1n=123-3a B. N=123-3a-0.1 C.N=1,230-30a D. 3a-123 over 0.1 =n
Answer:
n = (123 - 3a) / 0.1
Step-by-step explanation:
Given:
3a + 0.1n = 123
Solve for n
3a + 0.1n = 123
Subtract 3a from both sides
3a + 0.1n - 3a = 123 - 3a
0.1n = 123 - 3a
Divide both sides by 0.1
n = (123 - 3a) / 0.1
The resulting equation if 3a + 0.1n = 123 is solved for n is n = (123 - 3a) / 0.1
Which expression is equivalent to (7^3)^−2?
Answer:
Step-by-step explanation:
We are missing the rest of the question.
However (7^3)^-2 would equal to 343^-2 which would equal to 1/117649 or 8.49985 * 10^-6.
If you break it down more:
7*7*7= 343 Take that to the -2 power is 1/117649 or 8.49985*10^-6
If none of these is part of your choice, please supply the choices and I can try to help some more.
I need help with this math problem. If you can please give me an explanation.
Answer:
see explanation
Step-by-step explanation:
Calculate the values of y by substituting the values of x into y = - 6x + 2
x = - 5 → y = - 6(- 5) + 2 = 30 + 2 = 32
x = - 1 → y = - 6(- 1) + 2 = 6 + 2 = 8
x = 0 → y = - 6(0) + 2 = 0 + 2 = 2
x = 1 → y = - 6(1) + 2 = - 6 + 2 = - 4
Thus
x y
- 5 32
- 1 8
0 2
1 - 4
Answer:
32
8
2
-4
Step-by-step explanation:
The question is asking you to fill in the table for each value of x. That might sound a little confusing at first... but it's simpler than you think.
The equation y = -6x + 2 is important for the entire problem. What the equation means... is that (-6 times x) + 2 equals y. What does that mean? Let's take a look.
In this equation, x and y are variables. That means that they can be any number... for now they are just holding the place of any number. For example... x + 2 = 4. In this equation... x has to be 2. The same idea is being applied here.
If you want to find what "y" is equal to... you have to replace "x" with the number that the table gives you.
For example... the table asks us to find "y" when "x" is -5.
y = -6 (-5) + 2
y = 30 + 2
y = 32
(It's important to remember that if you multiply two negative numbers... you get a positive product.)
Repeat this process for all of the other values they ask for "x" to get an answer for "y"
I hope this helped :) If not, I'll try and help some more!
The price of an item in a shopping cart is c dollars. If the sales tax on the item is 9%, and the expression c + 0.09c represents the total cost of the item after tax, which TWO EXPRESSIONS also represent the total cost of the item after tax?
A) 0.9c
B) 1.09c
C) 1.9c
D) (1 – 0.09)c
E) (1 + 0.09)c
If you factor c + 0.09c, we get c(1 + 0.09), which is the same as (1 + 0.09)c.
If we add the numbers inside the parentheses (1 + 0.09)c we get 1.09c.
The answer is choice B and E.
a bank offers two different types of interest on saving accounts
account 1 pays 5.5 % simple interest
account 2 pays 5% interest compounded annually
deposits of 1000 are made into the accounts of each type. no additional Including
withdraws or deposits are made.
what amount is the closest to the interest earned in 5 years.
Answer:
(a) The closet to the simple interest eaened in 5 years is $275.00.
(b) The closet to the compound interest earned in 5 years is $276.28.
Step-by-step explanation:
These can be determine as follows:
(a) Simple Interest
The interest earned and be determined using the simple interest formula as follows:
Simple interest = P * R * T ....................... (1)
Where;
P = Principal = $1,000
R = interest rate = 5.5%
T = term = 5
Substituting the values into equation (1), we have:
Simple interest = $1,000 * 5.5% * 5 = $275.00
(b) Compound Interest
The interest earned and be determined using the compound interest formula as follows:
Compound interest = P(1 + R)^T - P ....................... (2)
Where;
P = Principal = $1,000
R = interest rate = 5%, or 0.05
T = term = 5
Substituting the values into equation (2), we have:
Compound interest = $1,000(1 + 0.05)^5 - $1,000 = ($1,000 * 1.05^5) - $1,000 = ($1,000 * 1.2762815625) - $1,000 =$1,276.28 - $1,000 = $276.28
Interest earned in savings Account 1 = 275
Interest earned in savings Account 2= 276.282
What is the difference between simple interest and compound interest?Simple interest is based on the principal amount of a loan or deposit. In contrast, compound interest is based on the principal amount and the interest that accumulates on it in every period.
interest earned by savings account 1
I₁=P*R*T/100
where,
P= Principal
R= rate of simple interest
T = time
I₁=1000*5.5*5/100
compound interest I₁=275
Interest earned by savings account2
amount A after n years= [tex]P(1+\frac{r}{100} )^n[/tex]
where,
A= amount received after 5 years
P= principal
r = rate(compound annually)
n = time
[tex]A = 1000(1+\frac{5}{100} )^5\\\\A=1276.282[/tex]
Compound interest I₂ = 1276.282-1000=276.282
Therefore,
interest earned in savings Account 1 = 275
interest earned in savings Account 2= 276.282
to get more about simple and compound interest visit:
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Use the value of y (y=4) that you found for part b to correctly find the measures of AX and BD and list each step for each.
Use the figure below:
Answer:
AX and BD have the same lenght
Step-by-step explanation:
So BD= 2*(y+4) -> 2*(4+4) = 16
and AX is the same lenght as BX so: AX = y+4 -> 4+4 = 8
answer soon!!!!!!!!!!!!!!!!!!
Expressions that are used so much that people get tired of hearing
them are called:
similes
metaphors
cliches
idioms
Answer:
cliches idioms
Step-by-step explanation:
2x +12 - 8x - 7= -10x + 2 + 4x +3.
Answer:
r37grqigohw
Step-by-step explanation:
On a two week job a repairman works a total of 70 hours he charges 75$ plus 40$ per hour.An equation shows this realationship where x is the number of hours and y is the total fee
This question is incomplete
Complete Question
On a two week job, a repairman works a total of 70 hours. He charges $75 plus $40 per hour. An equation shows the relationship where x is the number of hours and y is the total fee. Write the equation. What is the slope and y-intercept?
Answer:
a)Write the equation.
y = 40x + 75
b) What is the slope and y-intercept?
The slope = 40
y - Intercept = 75
Step-by-step explanation:
On a two week job a repairman works a total of 70 hours. He charges 75$ plus 40$ per hour.
The equation shows this realationship where x is the number of hours and y is the total fee is given using the equation of a straight line which is given as:
y = mx + c
Where m = Slope
c = y intercept
Applying this equation to our question , we have:
y= 40x + 75
The slope = m = 40
y-intercept = c = 75
Answer:
75 y intercept.
Step-by-step explanation:
What is the solution to the system of equations graphed below?
Answer:
a
Step-by-step explanation:
the two lines intercept at 1,-2
Answer: it is b(4,2)
Step-by-step explanation: nice
What is the weight of the seawater in an aquarium that is 4.4 ft long, 2.5 ft wide, and 5.3 ft high?
Answer:
The weight of the sea water in the aquarium is 3827.119 lb
Step-by-step explanation:
We start by calculating the volume of the aquarium
Since it is a cuboid, the volume will be L * B * H
= 4.4 * 2.5 * 5.3 = 58.3 ft^3
Mathematically;
Mass = density * volume
The density of sea water is 63.93 lb/ft^3
Mass = 63,93 * 58.3 = 3,827.119 lb
23. ANALYZING EQUATIONS
The cross section (with
units in inches) of a parabolic satellite dish can be modeled by the equation y=1/38 x^2
How far is the
receiver from the vertex of the cross section? Explain.
Answer:
9.5 in
Step-by-step explanation:
The receiver is placed at the focus of the parabola at a distance of 1/4a from the vertex. Here that would be 1/(4*(1/38)) or 38/4 inches or 9.5 in
The receiver lies 9.5 inches far from the vertex of the cross-section.
Given that,
The cross-section (with units in inches) of a parabolic satellite dish can be modeled by the equation y=1/38 x².
To determine how far is the receiver from the vertex of the cross-section.
A parabola is a cross-section cut out of the cone and represented by an equation, y =4ax².
Here,
The receiver is located near the parabola's focus, 1/4a away from the vertex. That would be 1/(4×(1/38)) or 38/4 inches or 9.5 in. in this case.
Thus, the receiver lies 9.5 inches far from the vertex of the cross-section.
Learn more about parabola here:
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A 13-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 5 feet from the base of the building. How high up the wall does the ladder reach?
The ladder reaches ___ feet up the wall (round to the nearest humdredth)
Answer:
12
Step-by-step explanation:
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I NEED HELP lol
The Tigers, a football team, must gain 10 yards in the next four plays to keep possession of the ball. The Tigers lose 24 yards, gain 4 yards, and lose 10 yards. How many yards do they need to keep possession?
Group of answer choices
-20
20
-8
40
Answer:
Step-by-step explanation:
must gain 10 yards
they lost 24 yards
gained 4
-24 + 4 = -20
they lost 10 more
- 20 -10 = -30
x + -30 = 10
x = 10 + 30
x = 40 yards
In the year 2000, the United States had about 100,300,000 people registered to use cellular phones. How would this number of people be written in scientific notation?
Answer:
1.003 * 10^8
Step-by-step explanation:
Given that :
The United States has about 100,300,000 registered to use cellular phones in the year 2000
100,300,000 in scientific notation:
(100,000,000) + (300,000)
(1 * 10^8) + (3 * 10^5)
To ensure equal power :
300,000 = 3 * 10^5 = 0.003 * 10^8
Hence,
(1 * 10^8) + (0.003 * 10^8)
(1 + 0.003) * 10^8
1.003 * 10^8
Whats the exspression equivalent to (-2x + 8.1y)
Answer:
b. 7x + 2.8y
Step-by-step explanation:
distribute the negative sign:
= -2x + 8.1 + -1(-9x + 5.3y)
= -2x + 8.1 + -1(-9x) + -1(5.3y)
= -2x + 8.1 +9x + -5.3y
combine like terms:
= (-2x + 9x) + (8.1 + -5.3y)
= 7x + 2.8y
PLS HELP ME!!!!
I have the answer I just need to show the work
Find the measure of angle A.
Answer: 28 degrees
Answer:
32x+4+20+4+6x=180
38x+28=180
38x=152
x=4
4+6(4)
4+24
28
Step-by-step explanation:
please give brainliest!!
Step-by-step explanation:
(32x+4)+20+(4+6x)=180
38x+28=180
38x=152
(38x)/38 = (152)/38
x=4
plug into angle A:
4+6x
4+6(4)
28
please help, will mark brainliest
Answer:
The answer is B.
Step-by-step explanation:
Please give me brainliest i only need 2 more brainliest to get expert
8. Transform y = f(x) by translating it right 2 units. Label the new function
g(x). Compare the coordinates of the corresponding points that make
up the 2 functions. Which coordinate changes, x or y?
Please help ASAP!
Answer:
The X-coordinate changes.
Step-by-step explanation:
A 9 cm piece of cooper pipe cost 63 cent what is the unit price
Answer:
7 cents per centimeter
Step-by-step explanation:
Please help with math
Answer:
the answer is "A"
Step-by-step explanation:
hello can u help plz?
Answer:
slope would be 3 or 3/1
Step-by-step explanation:
I think i'm not totally sure it could be -3 or -3/1
pleaseeee helpppp!! thank you sm:(
Answer:A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
x-5 has to be less than -2 and the inequality sign goes the opposite direction than the arrow on the number line
The manager of a hardware store is analyzing his monthly profit. In January, the
store earned a profit of $4,000. In February, the profit changed by -$450. In
March, the profit changed by +$600 from the previous month. How much profit,
in dollars, did the company make in March?
What is the equation of the line that passes through the point (-6,6) and has an undefined slope ?
Answer:
x = -6
Step-by-step explanation: