Answer:
B
Step-by-step explanation:
Lucas has a jar of coins that contains only nickels and dimes. He has 30 coins itſ the jar worth a
total of $2.10. Which system of equations could be used to find the number of nickels, n, and
the number of dimes, d, that Lucas has in the jar?
А
n+d = 2.10
5n+100 = 30
B
n+d = 30
5n-10d =2.10
с
n-d = 30
0.05n+0.10d = 2.10
D
n-d=2.10
0.050+ 0.100 = 30
Answer:
Step-by-step explanation:
The correct system of equations which is the number of nickels and dimes that Lucas has in the jar is:
n + d = 30
0.05n + 0.10d = 2.10
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Lucas has a jar of coins that only contains nickels and dimes. He has 30 pennies in the jar, which is worth $2.10.
Let represents the number of nickels, n,
And the number of dimes, d, that Lucas has in the jar
The system of equations to find the number of nickels and dimes that Lucas has in the jar is:
n + d = 30
0.05n + 0.10d = 2.10
This system can be used to solve for the values of n and d. The first equation represents the total number of coins, and the second equation represents the total value of the coins in the jar.
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19. Find the measure of angle ABC.
Answer:
72
Step-by-step explanation:
6x+6x+8x=180 (∠ sum of Δ)
20x=180
x=9
∠ABC=8(9)
=72
If f(x) = x² + 1 then what is f(3)?
Answer:
f(3) = 9Step-by-step explanation:
given:
[tex]f(x)=x^2[/tex]
[tex]f(3)=3^2[/tex]
[tex]f(3)=9[/tex]
just insert the value in and you get your answer
A pump moves 70 gallons of water
per minute. How long will it take the
pump to empty a 2,030-gallon tank?
Part A
Including the SD cards, how many combined bits of storage do Theresa and Ruben have on their phones? Type your answer in scientific notation.
Part B
How many combined bits of storage do Theresa’s parents have on their phones? Type your answer in scientific notation.
Part C
How many combined bits of storage are there on the two tablets?
Part D
Including the phones, tablets, and cloud, how many total bits of storage does the family have altogether? Type your answer in scientific notation.
Part E
Theresa’s computer at home has 1 terabyte of storage. How many more bits of storage does her computer have than the combined bits available on her family’s phones, tablets, and cloud storage? Type your answer in scientific notation.
Answer:part A including SD cards, Theresa and Ruben have 2.624 x 10^11 bits of storage.
Part b :32 bits
Step-by-step explanation:sorry that's all I know
Hope I helped
The required, solution of the given numeral in scientific notation is shown.
What is scientific notation?Scientific notation is a method of writing extremely large or extremely small numbers. When a number between 1 and 10 is multiplied by a power of 10, it is written in scientific notation.
Here,
Part A: Including the SD cards, how many combined bits of storage do Theresa and Ruben have on their phones?
Answer: 6.4 × 10¹¹ bits
Part B: How many combined bits of storage do Theresa’s parents have on their phones?
Answer: 2.4 × 10¹¹ bits
Part C: How many combined bits of storage are there on the two tablets?
Answer: 3.6 × 10¹⁰ bits
Part D: Including the phones, tablets, and cloud, how many total bits of storage does the family have altogether?
Answer:6.9 × 10¹² bits
Part E: Theresa’s computer at home has 1 terabyte of storage. How many more bits of storage does her computer have than the combined bits available on her family’s phones, tablets, and cloud storage?
Answer:8.6 × 10¹² bits
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PLS HELP!!! it’s easy and i’ll give brainliest
Answer:
6.5
Step-by-step explanation:
8÷tan(51)=6.47...
=6.5(correct to the nearest tenth)
Simplify the following expression.
3^3/5• 3^(-7/5)
Answer:
[tex]\frac{1}{3x^{\frac{4}{5}}}[/tex]
Step-by-step explanation:
Subtract the exponents: 3/5 - 7/5 = -4/5
Equation would become 3^-4/5
Which is equivalent to 1/3x^4/5
PLEASE HELP! ITS DUE TODAY!!!
Answer:
Step-by-step explanation:
1.24 * 0.15 = 0.0186
As you can see, the numbers are the same, but the order of the decimal is different.
Since the order of the decimal is different, so will the answer.
1,860 and 0.0186 do have the same numbers in them, but since the decimal is located in different spots, then the answer will be different with different values.
You might not see the decimal in 1,860, but it is after the 0.....
1,860.0 ( same thing just added a decimal, but it is the same value)
Hope this helped!
Have a supercalifragilisticexpialidocious day!
help for brainlest what can be use ti
Answer:
2x(5+13)
Step-by-step explanation:
add then multiply by 2
Answer:
to find perimeter
= 2(L+w)
= 2(5+13)
10+26
36
so the answer is 2×(5+13)
hope it's helpful ❤❤❤❤
THANK YOU.
Please help!!
Will mark brainliest
Answer:
y = 2
Step-by-step explanation:
y=2 every time you add 3 to x your adding 2 to the y
-3 + 3 = 0 and 3 + 2 = 5
0 + 3 = 3 and 5 + 2 = 7
Find output, y when the input, x, is -3 Y=
Answer:
2
Step-by-step explanation:
Answer:
y = 2
Step-by-step explanation:
Locate x = - 3 on the x- axis, go vertically up to meet the graph at (- 3, 2 )
Then when x = - 3, y = 2
A student wants to prove that she can solve a system of a system of equations by replacing one of the equations with two times that equation and adding the other equation. The original system was 12x +2y =30 and 10x+y = 26. The student claims that her first step is to add the two linear equations. Select the option that refutes the student claim
Answer: y=+{%
Step-by-step explanation:
€
hey
heh
On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−7, 3) and T(3, 3). What is the length of Side RT of the polygon?
4 units
6 units
10 units
16 units
Answer:
The answer is 10 units because if you add up all the units that would be on the side you will get 10
Step-by-step explanation:
85 / 16 with a remainder
Answer:
the top number is the answer and the remainder is the bottom number in decimals its = 5.31
Step-by-step explanation:
hope this helped
Let sin(2x)-sin(x)=0, where 0 ≤ x < 2pi. What are the possible solutions for x?
Step-by-step explanation:
sin2x - sinx = 0
2sinxcosx - sinx = 0
(Double Angle Formula)
sinx(2cosx - 1) = 0
Either sinx = 0 or cosx = 1/2.
When sinx = 0,
x = 0 or x = π.
When cosx = 1/2,
x = π/3 or x = 5π/3.
Hence the solutions are
x = 0, x = π/3, x = π or x = 5π/3.
Is 3 a factor of 245 - 16?
yes
no
HELPPP
Answer:
No
Step-by-step explanation:
For 3 to be factor your finale number has to be divisible by 3, so with that information all you have to do is subtract 245-16 which is 229, and if you divide 229 by 3 it does not equal a whole number so 3 cannot be a factor.
I hope this helps, and have a great day! :D
Explain why you cannot factor the trinomial x2 – 15x + 3
A. There are no factors of 3 that add up to -15
B. It can be factored
C. There are no factors of -15 that add up to 3.
Answer:
there are no factors of -15 that add up to 3
Answer:
It is A trust me
Step-by-step explanation:
Please help me 35 points but please do not abuse this and answer incorrectly. Will name brainliest Thank you :)
Step-by-step explanation:
You just simplifyall answers or expand them and add them up
Is C + 11 = 20; c =9 a solution or not a solution
Someone help worth 5 points
Answer:
43
Step-by-step explanation:
Answer:
b 43 on edge 2021.........
Write the equation of a line going through the points (4,2) and (7,-3).
Answer:
Equation of the straight line passing through the point ( 4,2) and (7,-3) is
5 x + 4y - 28=0
Step-by-step explanation:
Step(i):-
Given points are ( 4,2 0 and ( 7,-3)
Slope of the line
[tex]m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{-3-2}{7-4} = \frac{-5}{4}[/tex]
Step(ii):-
Equation of the straight line passing through the point ( 4,2) and
having slope m = [tex]\frac{-5}{4}[/tex]
y - y₁ = m( x- x₁ )
[tex]y - 2 = \frac{-5}{4} ( x-4)[/tex]
4( y -2) = -5( x-4)
4 y - 8 = - 5x +20
5x +4y -8 -20=0
5 x + 4y - 28=0
Final answer:-
Equation of the straight line passing through the point ( 4,2) and (7,-3) is
5 x + 4y - 28=0
Suppose f(x)= x? - 6r? +9x and g(x)=10x-6.
Answer:
f ( 10 x − 6 ) = 1000 x^ 3 − 1800 x ^2+ 1170 x − 306
Step-by-step explanation:
What is the greatest common factor (GCF) of 24 and 36?
4
12
2
6
the greatest common factor of 24 and 36 is 12
Answer:
12
Step-by-step explanation:
Work out − 5 × ( − 8 )
divide 120 in the ratio of 1 : 4
Dividing 120 in the ratio of 1 : 4 will give 24 and 96.
The first number that'll be gotten based on the information given will be:
= 1/5 × 120
= 24
The second number that will be gotten based on the information given will be:
= 4/5 × 120
= 96
Therefore, the numbers will be 24 and 96.
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13.
Write and solve a system of equations for each story problem.
A class of 366 students went on a field trip. They took 12 vehicles, some vans and some buses
Find the number of vans and the number of buses they took if each van holds 6 students and each bus holds
55 students
Answer:
6 vans and 6 buses
Step-by-step explanation:
v+b=12 this equation represents the amount of vehicles
6v + 55b = 366 this equation represents the amount of students per vehicle.
after solving you get v=6 and b=6
Grey ran 2.4 times as many miles as Emory. If Emory ran 2.08 miles, how many miles did grey run?
Answer:
If Grey ran 2.4 times as many miles as Emory, then 2.08 x 2.4 = 4.992
Step-by-step explanation:
4.992
Answer:
4.992
Step-by-step explanation:
Hey there !!!
to find the answer to this problem you multiply the number of miles that grey ran to the number of miles that Emory ran:
2.4 * 2.08 = 4.992
Hope it helped !!
have a wonderful day
look at screenshot and answer question
Answer:
24x+32
Step-by-step explanation:
=(3x+4)(8)
=(3x)(8)+(4)(8)
=24x+32
April, May and June have
90
sweets between them. May has three-quarters of the number of sweets that June has.
April has two-thirds of the number of sweets that May has. How many sweets does June have?
Answer:
40 sweets
Step-by-step explanation:
Let june have x sweets
may has 3x/4 sweets
April has x/2 sweets
total sweets is 90
Adding all sweets =
x/2+3x/4+x = 90
9x = 360
x = 40
Therefore June has 40 Sweets
Help me please... I have a lot more things to do and I wanna get this done.
Answer:
-6
Step-by-step explanation:
count
Answer:
-6
Step-by-step explanation:
each dash on the line changed by one. So i you go down, you subtract 1, and if you go up, you add 1.
