1. A collection of nickels and dimes has a value of $1.85. The value of
the dimes is $0.10 less than twice the value of the nickels. Which
system of equations can be used to find the number of nickels and
the number of dimes?
A. n+d = 185; n-d = 1
B. n+d = 185; 2n-d = 1
C. 5n+10d = 185; d = 2n - 1
D. 5n + 10d = 185; n - d = 1
Answer:
D.) is the correct answer
PLEASEEEEEE HELPPPppppp
Answer:
A
Step-by-step explanation:
please help me
is importe
Answer
D. 20
Explanation
The common denominator of fractions is the least common multiple of the denominators.
The least common multiple of 4 and 5 is 20.
Therefore the common denominator of 1/4 and 3/5 is 20.
4. David hikes 2 1/4 miles in 1/2 hour. At this rate how long will it take him to walk 1 mile? If he walks for 1 hour,
how far will he have gone? yes
Answer: 4.50 miles.
Step-by-step explanation:
David hikes 2 1/4 miles in 1/2 hour. To make it easier, we can turn the fractions into decimals.
David hikes 2.25 miles in 0.5 miles.
The ratio of miles hiked to the hours hiked is 2.25 : 0.5. For every 0.5 hours, David hikes 2.25 miles.
To find how many miles David walks in 1 hour, we should multiply the original ratio by 2. 0.5 x 2 = 1, and we need to find how far David walks in 1 hour.
If David hikes 2.25 miles in half an hour, then he will walk 4.50 miles in 1 hour. So the answer is that David will walk 4.50 miles in 1 hour.
1
2
9
as an improper fraction.
Answer:
11/9
Step-by-step explanation:
Step 1Multiply the denominator by the whole number
9 × 1 = 9
Step 2Add the answer from Step 1 to the numerator
9 + 2 = 11
Step 3
Write answer from Step 2 over the denominator11/9
The improper fraction which is equivalent to [tex]1 \frac{2}{9}[/tex] is [tex]\frac{11}{9}.[/tex]
To convert the mixed number [tex]1 \frac{2}{9}[/tex] into an improper fraction, you need to multiply the whole number (1) by the denominator (9) and add the numerator (2).
The result becomes the numerator, and the denominator remains the same.
To do this multiply the whole number (1) by the denominator (9):
[tex]1 \times 9 = 9[/tex]
Add the numerator (2) to the result:
[tex]9 + 2 = 11[/tex]
So, the improper fraction equivalent of [tex]1 \frac{2}{9}[/tex] is [tex]\frac{11}{9}.[/tex]
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Convert [tex]1 \frac{2}{9}[/tex] as an improper fraction?
I needddd helpppp asappppp
Answer:
Step-by-step explanation:
Part A: Slope of parallel lines are equal.
4x - 3y - 7 = 0 ⇔ y = [tex]\frac{4}{3}[/tex] x - [tex]\frac{7}{3}[/tex]
m = [tex]\frac{4}{3}[/tex]
y - 3 = [tex]\frac{4}{3}[/tex] ( x + 2 ) ⇔ y = [tex]\frac{4}{3}[/tex] x + [tex]\frac{17}{3}[/tex] ⇔ 4x - 3y + 17 = 0
Part B: Slope of perpendicular lines are opposite reciprocal.
[tex]m_{1}[/tex] × [tex]m_{2}[/tex] = - 1
[tex]m_{1}[/tex] = [tex]\frac{4}{3}[/tex]
[tex]m_{2}[/tex] = - [tex]\frac{3}{4}[/tex]
y - 3 = - [tex]\frac{3}{4}[/tex] ( x + 2 ) ⇔ y = - [tex]\frac{3}{4}[/tex] x + [tex]\frac{3}{2}[/tex] ⇔ 3x + 4y - 6 = 0
Am really bad at math please answer
Answer: No
Step-by-step explanation:
you just gotta keep trying and ill help u
1. 6/7
2. 3/5 is already in its simplest form
3. 5 2/9
-4x4x(-3x2+9) what is the answer this question on my math homework
Answer:
-48
Step-by-step explanation:
-4x4x(-3x2+9)=-48
Answer:
12x^7−36x^5
Step-by-step explanation:
-
TE
3
The students in one classroom sold tickets to the talent show They
sold 200% of the amount of tickets that they sold last year. If they
sold 40 tickets this year, how many did they sell last year?
(Worth 20 points)
Answer:The students in one classroom sold tickets to the talent show They
sold 200% of the amount of tickets that they sold last year. If they
sold 40 tickets this year, how many did they sell last year?
Step-by-step explanation:
Will I
Answer:
n = 20
Step-by-step explanation:
%p * n = m
200% * n = 40
n = 40 / 200
n = 40 / 2
n = 20
Consider the numbers z= 2 + 5i, w = -3- 2i, and u=-1+2i.
z+w is equal to -1+vi
w-u is equal to - 4i
u + w is equal to -4 -
Answer:
3, 2, 0
Step-by-step explanation:
trust me
The resultant value of vectors are:
1. z + w = -1 + 3i.
2. w - u= -4 - 4i
3. u + w = -4.
Given:
z = 2 + 5i
w = -3 - 2i
u = -1 + 2i
1. z + w:
Adding the real and imaginary parts separately gives
(2 + 5i) + (-3 - 2i) = (2 - 3) + (5 - 2)i
= -1 + 3i
Therefore, z + w is equal to -1 + 3i.
2. w - u:
Subtracting the real and imaginary parts separately gives
(-3 - 2i) - (-1 + 2i) = (-3 + 1) + (-2 - 2)i
= -4 - 4i
Therefore, w - u is equal to -4 - 4i.
3. u + w:
Adding the real and imaginary parts separately gives
(-1 + 2i) + (-3 - 2i) = (-1 - 3) + (2 - 2)i
= -4
Therefore, u + w is equal to -4.
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Solve the system by the substitution method. x + 3y = 1 y = - 2x - 17 Select the correct choice below and fill in any answer boxe A. The solution is (-10,3). (Type an ordered pair.) OB. There are infinitely many solutions O c. There is no solution.
Answer:
C
Step-by-step explanation:
19. Craig Deloy's bank computes 4.25 percent interest on a daily basis. He had $1,250 in the account
for 20 days. He then makes a deposit of $450 and makes no transactions for 10 days. He then
withdraws $300 and makes no transactions for 8 days.
a. How much interest does he earn in the 38 days total?
Answer:
Interest he earn in the 38 days total = $2458.57
Step-by-step explanation:
As given,
Rate of interest (R)= 4.25% = 0.0425
Principal (P)= $1250
Now,
Simple Interest (S.I) for 20 days = P×R×T
= 1250×0.0425×10
= 531.25
⇒Interest for 20 days = $531.25
Now,
Total amount = P + S.I = $1250 + 531.25 = $ 1781.25
As He then makes a deposit of $450 and makes no transactions for 10 days.
⇒Total amount become = $1781.25 + 450 = $2231.25
Now,
S.I for next 10 days = 2231.25×0.0425×10
= 948.28125
⇒Interest for next 10 days = $ 948.28125
∴
Total amount = $2231.25 + 948.28125 = $ 3179.53125
As He withdraws $300 and makes no transactions for 8 days.
⇒Total amount become = $ 3179.53125 - 300 = $ 2879.53125
Now,
S.I for next 8 days = 2879.53125×0.0425×8
= 979.040625
⇒Interest for next 8 days = $ 979.040625
a.)
Interest he earn in the 38 days total = Interest in 20 days + next 10 days + next 8 days
= $531.25+948.28125+979.040625
= $2458.571875 ≈ $2458.57
∴ we get
Interest he earn in the 38 days total = $2458.57
what are your thoughts about the choice of music style and genre in hamilton? Give reasons for your answer (write a paragraph with a few lines) please don’t waste my points because i really need this i’ll also give brainliest.
what is the value of 18-3 k ÷9 when k=4
Answer:
16.6666666667
Step-by-step explanation:
Answer: 50/3 or 16 2/3 or 16.67
Step-by-step explanation:
Given
18-3k÷9
Substitute [k] value into the given expression
18-3k÷9
=18-3(4)÷9 ⇒ Substitute the value
=18-12÷9 ⇒ Expand the parenthesis
=18-4/3 ⇒ First do division
=54/3-4/3 ⇒ Convert an integer into a fraction
=50/3=16 2/3=16.67
Hope this helps!! :)
Please let me know if you have any questions
b) ¿Qué permite que las señales se transmitan por los nervios?
Answer:
el cerebro quizas no se puede ser
Suppose you are an aerospace engineer. It is your job to design a new type of fighter jet, and you have already been given a model for it. The actual jet is to be 50 times as large as the model. The dimensions of the model are as follows: Length: 3 feet Width: 6 inches Height: 0.3 feet Find the dimension of the actual jet
Answer:
150 ft length 35ft width and 15ft height
Step-by-step explanation:
Sarah says that 19 divided by. 9 equals 9 divided by 4 because both are 2r1 show here mistake using decimal division. How do I find out how she’s wrong?
PLEASE HELP Christine walks 0.5 miles around the lake in 10 minutes.
What is the unit rate of her speed in miles per minute?
Answer:
Her speed is 0.05 miles per minute
Step-by-step explanation:
The unit rate of her speed in miles per minute is given by the number of miles divided by the number of minutes. So:
0.5 miles in 10 minutes. So
0.5/10 = 0.05 miles per minute
Her speed is 0.05 miles per minute
What are the first three terms of a geometric sequence in which a5= 25 and the common ratio is 5?
Answer:
1/25, 1/5, 1
Step-by-step explanation:
Answer:
A on edgeinuity
Step-by-step explanation:
IMAGINE GETTING A DIPLOMA IN THREE DAYS!!!
Given s(t) = t^3 - 8t + 9, evaluate s(3)
Answer:
s(3)=11
Step-by-step explanation:
s(t)=t^3-8t+9
Plug in 3 for t
s(3)=(3)^3 - 8(3) + 9
s(3)=27 - 24 +9
s(3)=11
Please help I will mark Brainliest
the answer is 5 i think lol
Answer:
1. 8
2. 4
3. 5
4. 8/125
5. 4/3
6. 6
7. 8
8. 2
Lorna earns P71.75 per hour for gardening. If she will work for 21 hours
this month, then how much will she earn?
Answer this or u will die
Answer:
Step-by-step explanation:
1,506.75
Answer:
The answer is 1506.75
Step-by-step explanation:
Since they say the hourly rate is 71.75, and Lorna is working for 21 hours, then all we have to do is multiply 71.75 and 21 to get 1506.75.
Kayla takes 7 hours to mow 2 lawns. At this rate, how long will it take her to mow 13 lawns?
Answer: at least 6 more hours
Step-by-step explanation:
Answer:
45 hours and a half
Step-by-step explanation:
Divide 7 by 2. Multiply 7 by 13
Four times the sum of three consecutive integers is 180. What are the three integers?
Find the slope of the line that passes through (1, 17) and (10, 10).
Answer: slope=-7/9. 10-17/10-1=-7/9
Please help I will put Brainliest!!!!
Answer:
Ill tell you the bases and exponents, 2 is the base and 2 is the exponent. 3 is your base and 2 is your exponent. 5 is your base and 3 is your exponent. 10 is your base and 3 is your exponent. 4 is your base and 2 is your exponent. 5 is your base and 2 is your exponent. 6 is your base and 2 is your exponent.
the property taxes on your home will go up 6% next year. Currently, you pay $2,500 . How much will you pay next year?
The ratio of the measures of the sides of a triangle is 2:3:7 and the length of the longest side is 91 find the perimeter
Answer:
103
Step-by-step explanation:
i hope this helps
welcome
Find the
X.
х
48
55
x = [?]
Answer2x^2
Step-by-step explanation:
HELP ME!!!! PLZ!!!!
The determinants of the minors of the first-row entries are _____ .
11, -20, 23
11, -16, 26
13, -20, 23
13, -16, 26
The determinants of the minors of the second-row entries are______ .
-21, 5, -24
-21, 7, -28
-18, 7, -28
-18, 5, -24
The determinants of the minors of the third-row entries are_______ .
4, 9, -14
4, 8, -12
6, 8, -12
6, 9, -14
Answer:
The picture below. (11, -20, 23) , (-21, 5, -24), (6,9,-14)