A bag contains 18 coins consisting of quarters and dimes. The total value of the coins is $2.85. Which system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag?
A. 0.10q+0.25d=2.85
q+d=18
B. 0.10q+0.25d=18
q+d=2.85
C. 0.25q+0.10d=2.85
q+d=18
D. 0.25q+0.10d=18
q+d=2.85
Answer: A. 0.10q+0.25d=2.85
q+d=18
Step-by-step explanation:
The system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag is q+d=18 and 0.25q+0.10d=2.85.
Given that, a bag contains 18 coins consisting of quarters and dimes. The total value of the coins is $2.85.
We need to find which system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag.
What is the system of equations?In algebra, a system of equations comprises two or more equations and seeks common solutions to the equations. "A system of linear equations is a set of equations which are satisfied by the same set of variables."
The number of quarters, q, and the number of dimes, d, in the bag.
Now, the number of quarters + the number of dimes=18
⇒q+d=18
The total value of the coins is $2.85.
So, 0.25q+0.10d=2.85
Therefore, the system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag is q+d=18 and 0.25q+0.10d=2.85.
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4. Simplify. Show your work and write your answer as a mixed number in the simplest form.
1 1
---- x 5 ------
2 4
if you didnt know what i wrote its : 1/2 times 5 1/4
Answer: 5/8
Step-by-step explanation:
5 1/4= 21/4
1/2 x 5 = 5/2
5x1/2x4
5/8
ok let me do this one more time i only have 71 points left and i need help please ill mark brainliest just help me on the two please
Answer:
D.
Step-by-step explanation:
On a coordinate plane, a line goes through points (0, negative 2) and (5, 0). For the graph, locate the x-intercept and the y-intercept. The x-intercept is at The y-intercept is at
Answer:
The x-intercept is at
(6, 0)
The y-intercept is at
0,-2)
Step-by-step explanation:
i got it right on edge
Marcy spent 8 minutes on the phone while routing 4 phone calls. In all, how many phone calls does Marcy have to route to spend a total of 20 minutes on the phone? Assume the relationship is directly proportional.
Answer: Marcy will need to route 10 calls to spend a total of 20 mintes on the phone.
Step-by-step explanation: 1 call = 2 minutes.
The initial value, the variable b in y = mx+b, and the point (0, 3) are all representations of a y-intercept.
True
False
Answer:
True
Step-by-step explanation:
Can you please help. Also remember to explain.
Answer:
Yes
Step-by-step explanation:
The answer using distributive property is the same as using original way to caculate it.
3+5(2+4) = 3+5(6) =3+20 =33
Answer:
I do not agree with Talia.
Step-by-step explanation:
This is because they did not simplify the expression correctly. When simplifying this expression you would use the Order of Operations.
3+5(2+4)
=3+5(6)
=3+30
=33
Which function is equivalent to h(x)=10x2+9x-1?
A. h(x)=(x-1)(10x+1)
B. h(x)=(x+1)(10x-1)
C. h(x)=(10x+1)(x+1)
D. h(x)=(10x-1)(x-1)
Answer:
i think the answer is c
Step-by-step explanation:
The equivalent function is [tex]h(x)=(x+1)(10x-1)[/tex]option B is correct.
Important information:
The given function is [tex]h(x)=10x^2+9x-1[/tex].We need to find the equivalent function.
Equivalent expression or function:The given function can be written as:
[tex]h(x)=10x^2+10x-x-1[/tex]
[tex]h(x)=10x(x+1)-1(x+1)[/tex]
[tex]h(x)=(10x-1)(x+1)[/tex]
[tex]h(x)=(x+1)(10x-1)[/tex]
Thus, the correct option is B.
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Rick started his retirement account with \$5,000 when he was 23. When he retired at age 65 , he had 2.2 * 10 ^ 6 dollars in his retirement account . How many times greater was his account when he retired ?
Answer:
A
Step-by-step explanation:
If you do the 2.2 * 10 ^ 6 you would get 2,200,000 then divide that by 5000 and put it in scientific notation which would be 4.4 * 10 ^ 2
Melissa and Joey enjoyed dinner at a restaurant. They paid the waiter $100.50 plus a 20% tip. How much did each person pay if they split the total bill in half?
A.
$60.30
B.
$70.00
C.
$75.10
D.
$100.10
Answer:
The answer to your question is A
Answer:
A. 60.30
100.50 plus 20% of it is 120.6 divided by two is 60.3
Sabrina purchased Three-fourths pound of apples and One-half pound of nuts.What is the total cost of these items to the nearest cent?
$4.93
$5.86
$9.22
$18.89
Answer:
4.29
Step-by-step explanation:
Describe how the graph of is the same and different from the graph of .
Explain or show your reasoning.
PLss help THIS IS TUNRED IN TODAY AT 5:35
Answer:
WHERE IMAGE
Step-by-step explanation:
Ross needs buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage error? 1.02% 1.69% 20% 98%
ANSWER ASAP
Answer:
20%
Step-by-step explanation:
1) 11.8 - 12 = 0.2
2) turn 0.2 into a percent
0.2 = 20%
mark brainliest if helped :)
The Taieri Plain in New Zealand is 6 feet below sea level (or –6 feet). If you are standing 3 feet above sea level, is your elevation the opposite of the elevation of the plain? Describe the steps you would follow with a vertical number line to find the answer.
sorry messed up on the last one
What is the equation of the line x–3y=18in slope-intercept form?
Drag and drop the appropriate number, symbol, or variable to each box.
the drag and drop options are:
x
y
-18
-9
-3
-1/3
1/3
6
9
18
+
-
=
Answer:
the answer would be done like this
Step-by-step explanation:
you have to get y by itself so you would need to move the x to the right of the equal sign
once you move anything to the opposite side it switches, so positive becomes negative vice versa
-3y=-x+18
you need to make sure you have positive 1 y so you would divide y by -3 to make it 1
everything else is multiplied by -3 as well
so the answer would be y=⅓x-6
How does the graph change between point A and point C?
A graph increases from point A to point B, is constant between points B and C, decreases from point C to D, decreases from point D to E, and decreases from point E to F.
The graph increases, then decreases.
The graph decreases, then remains constant.
The graph decreases, then increases.
The graph increases, then remains constant.
Answer:
The graph increases, then remains constant.
Step-by-step explanation:
It says it increases between point A and B. Then it says between point B and C it is constant
which equation represents a liner function that has a slope of 4/5 in the Y intercept of -6 y = -6x + 4/5 y = 4/5 x - 6y = 4/5 x + 6 Y = 6x + 4/5
The square root of 72 is between which two whole numbers?
A.5 and 6
B.6 and 7
C.7 and 8
D.8 and 9
Answer:
The answer is D
Step-by-step explanation:
It takes Jesse (2/3) hour to mow her backyard how much of the yard will be mowed will be mowed after (1/4) hour ?
Choose the model that correctly illustrates the division problem (1/4) divided by (2/3)?
Answer:
the answer is A
Step-by-step explanation:
here is a link to the question i got the answer from
ok i looked it up and you can learn more here: https://brainly.com/question/12687875
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A paper popcorn cone measures 4 inches in diameter and is 9 inches high. What is the volume of popcorn that can be contained within this cone? Use 3.14 for pi. Round your answer to the nearest hundredth.
answer choices
41.90 cubic inches
37.68 cubic inches
39.45 cubic inches
40.23 cubic inches
Answer:
The formula for finding volume of a cone is (in this case),
V=(3.14)(r^2)(h/3)
With this formula in mind, you would simply substitute in.
V=(3.14)(2^2)(9/3)
You could work that out for yourself on your own, but to save you the time, it is 37.68 in. cubed.
Step-by-step explanation:
hope i helped
Renee hiked for 434 miles. After resting, Renee hiked back along the same route for 314miles. How many more miles does Renee need to hike to return to the place where she started? Represent your answer as a simplified mixed number, if necessary.
Answer:
Step-by-step explanation:
Plz name me the brainliest
Consider rectangle WXYZ with diagonal XZ. Rectangle W X Y Z is cut diagonally into 2 equal triangles. Angle Y X Z is 26 degrees and angle X Z W is x degrees. Angles Y and W are right angles. The angle relationship for triangle XYZ is 26° + 90° + m∠YZX = 180°. Therefore, m∠YZX = 64°. Also, m∠YZX + m∠WZX = 90°. So, x = °.
Answer:
26 i think
Step-by-step explanation:
next time try upload a picture so it for easier for us to answer
The measure of x is 26°.
What is Triangle?A triangle is a two dimensional figure which consist of three vertices, three edges and three angles.
Sum of the interior angles of a triangle is 180 degrees.
Given a rectangle WXYZ.
The diagonal XZ divides the rectangle into two triangles.
Consider ΔXYZ.
Sum of interior angles of a triangle is 180°.
26° + 90° + m ∠YZX = 180°
m ∠YZX = 180 - (26 + 90)
= 64°
Angle Z is a right angle.
m ∠YZX + m ∠WZX = 90°
64 + x = 90°
x = 26°
Hence the measure of angle x is 26°.
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Multiply.
−2
1
2•3
3
4
−2
1
2•3
3
4=nothing (Type an integer, proper fraction, or mixed number.)
Answer:
-3 × -2 = 8 (or in other words, 8.25.)
Step-by-step explanation:
Answer:
8.25
Step-by-step explanation:
i hope is help
What is the quotient of 1/2 and 5?
a 1/10
b 10/1
Answer:
A is the correct answer.
Answer:
A
Step-by-step explanation:
(−5)÷(−12)=(−5)⋅(−2)=10
Adriana bought a computer and three pieces of software. She spent a total of $1,220. The computer cost $995, and each piece of software costs the same price. Write and solve the equation needed to answer this question
Enter the ordered pair for point J.
Answer:
whats the picture so can see where point J lies.
Step-by-step explanation:
7/9−1/4
i need a answer now
Answer:
0.527....
Step-by-step explanation:
Answer:
7/9- 1/4
Step-by-step explanation:
Así que es esto, tienes que dividirlos, agregarlos y luego subratc, así que espero que esto ayude por un bye eek ooop 20 work limit
All of the points in which quadrant have negative x-coordinates and negative y-coordinates?
. Quadrant I
Quadrant II
Quadrant III
Quadrant IV
The Taieri Plain in New Zealand is 6 feet below sea level (or –6 feet). If you are standing 3 feet above sea level, is your elevation the opposite of the elevation of the plain? Describe the steps you would follow with a vertical number line to find the answer.
will mark brainly
Answer:
no
Step-by-step explanation:
Answer:
I am the brainliest!
Step-by-step explanation:
Although 6 and 3 are on opposite sides of sea level, or 0, they are not opposites because they are unequal distances from 0.