The system of equations that describes the situation is given by these two following equations:
c = 10 + x.2c + 3x = 160.What is a system of equations?A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are c and x.
Carlos has 10 more friends than Xavier when they start the competition, hence:
c = 10 + x.
Carlos doubles his amount of friends and Xavier triples his. In the end they have a total of 160 friends, hence:
2c + 3x = 160.
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Find the slope and y intercept
Answer:
find the angle of the 90 and divide by 5
Step-by-step explanation:
Answer number 20. Please answer all parts to the question.
what is an easy way to memorize like terms ex: 3 +x squared +x -5 +x squared
Answer:
You can memorize formulas like (a+b)^2 but that's about it, I will write down some formulas that might be useful.
(a+b)^2 = a^2+2ab+b^2
(a-b)^2 = a^2-2ab+b^2
(a-b)(a+b) = a^2+b^2
calculate the zeros: x1,x2 = (-b +/- sqrt(b^2-4ac))/2a
A box of 12 eggs( a dozen)is divided between four people, what fraction of the 12 eggs will rach get
Answer:
3 eggs constitutes 1/4 of the original 12 eggs
Step-by-step explanation:
Divide "12 eggs" by "4 people," obtaining 3 eggs/person.
3 eggs constitutes 1/4 of the original 12 eggs.
What is the difference between renewable and non-renewable resources? (Select all that apply).
1. Non-renewable resources can replenish themselves, but renewable resources cannot.
2. Renewable resources can replenish themselves, but non-renewable resources cannot.
3. Non-renewable resources are in abundance, but renewable resources are limited.
4. Renewable resources are in abundance, but non-renewable resources are limited.
Answer:
non renewable you can't renew what you already bought and renewable you can renew what you bought
Answer:
yes
Step-by-step explanation:
A water-walking ball has a volume of approximately 4.19 m 3 . What is the radius, r, of the ball?
[tex]~~~~~~V = 4.19 \\\\\implies \dfrac{4}3 \pi r^3 = 4.19\\\\\implies r^3 = \dfrac{4.19 \times 3}{4\pi}\\\\\implies r^3 = \dfrac{12.57}{4\pi} \\\\\implies r = \sqrt[3]{\dfrac{12.57}{4\pi}}\\\\\implies r= 1.00009..\\\\\implies r \approx 1~ m[/tex]
The value of radius of water-walking ball is,
⇒ r = 1.003 m
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
A water-walking ball has a volume of approximately 4.19 m³.
Since, We know that;
Volume of sphere = 4/3πr³
Hence, We get;
⇒ 4.19 = 4/3 × 3.14 × r³
⇒ r³ = 1.001
⇒ r = 1.003 m
Thus, The value of radius of water-walking ball is,
⇒ r = 1.003 m
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#SPJ2
yah..... help please bro
Answer:
I think D but I'm not too sure.
Change them all into decimals:
The square root of 2 = 1.41421356
3/2 = 1.5
15% = 0.15
Arrange them:
3/2, square root of 2, 1.3333..., 1.3, 15%
So, B is the correct answer.
A line has a slope of -3 and passes
through the point (8,-12).
There aren't enough parts for this to be classified as a question.
Yo I need to bring up my math grade bad so
4x-5y>20
(please show it graphed already :D
Here is how it is graphed:
How long does it take for a $5000 investment to turn into a $7000 investment if it is compounded
semi-annually at 5.2%
Answer:
well over 3 years and almost over 4 months
(1 + 1/x)^x = 1.0825
find the value of x.
Answer: about 0.0202161
Step-by-step explanation:
This is a transcendental equation, so graph the two equations and find the x coordinate where they intersect.
The measures of the bases of a trapezoid are 14 and 20. What is the measure of the median of the trapezoid?
The median of the trapezoid is = 17
calculation of the median of a trapezoidA trapezoid is a quadrilateral with one pair of opposite sides parallel. It has parallel sides which are known as the bases.
The base of the trapezoid(B1) =14
The base of the trapezoid (B2) = 20
To calculate the median = half the sum of the base of the trapezoid given.
Therefore,
14+20/2
34/2= 17
Therefore, the median of the trapezoid is = 17
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4. Ryan bicycled 100 miles from his home. The table shows his distance, in miles, from home at different times.
What was Ryan's average speed?
A. 5 miles/hour
B. 20 miles/hour
C. 10 miles/hour
D. 25 miles/hour
Ryan's Distance From Home
Time (hours) Distance
(miles)
1.5 30
2 40
2.5 50
3 60
Answer:
20 miles/hour
Step-by-step explanation:
To find the average speed you can divide the Distance by time.
30 ÷ 1.5 = 20
40 ÷ 2 = 20
50 ÷ 2.5 = 20
60 ÷ 3 = 20
On a farm there was a cow. And on the farm there were 2 sheep. There were also 3 chickens. What is the total mass of the 1 cow, the 2 sheep, the 3 chickens, and the 1 farmer on the farm?
Make a conjecture about how many ants might be on the farm. If you added all these ants into the previous question, how would that affect your answer for the total mass of all the animals?
What is the total mass of a human, a blue whale, and 6 ants all together?
Which is greater, the number of bacteria, or the number of all the other animals in the table put together?
The total mass of the living things on the farm is 588 kg.
Mass calculationSince on a farm there was a cow, 2 sheep and 3 chickens, to determine what is the total mass of the 1 cow, the 2 sheep, the 3 chickens, and the 1 farmer on the farm, the following calculation must be performed :
(6.2 x 10) + (4 x 10 x 10) + (2 x 6 x 10) + (3 x 2 x 1) = X62 + 400 + 120 + 6 = X588 = XTherefore, the total mass of the living things on the farm is 588 kg.
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I NEED THIS RIGHT NOW
Answer:
E
Step-by-step explanation:
Answer:
E
Step-by-step explanation:
the reason is, for a direct relation between x and z we have too little information.
z could be huge, much, much bigger than y and x, or just bigger by 1 than y.
so, assume e.g. the following 2 scenarios
z = 6
y = 5
x = 4
and
z = 600
y = 26
x = 3
A
x + y > z
is true for the first scenario, but not for the second. so, it is not always true.
B
z - x < z - y
no you subtract something smaller, so the result is bigger. this is not true for any of the scenarios.
C
xz > yz
no, z is the same part in both sides, and when it gets multiplied by something smaller, the result is smaller. this is not true for any of the scenarios.
D
z/x < z/y
no, again z is the same part in both sides, and when it gets divided by something smaller, the result is bigger. this is not true for any of the scenarios.
E
yz > xy
in this case y is the same part on both sides. when it gets multiplied by something bigger, the result will be bigger. so, this is true in all cases.
You want to get a cell phone plan including unlimited data, texting, and calls for your first phone you are going to purchase this summer from Sharaf Digital. Surf the internet and find a cell phone you would want to buy and record the price in US Dollars and type at Sharaf Digital.
a) All the plans have a base service charge of $23 per month plus the cost of the phone. Write an expression to represent the service charge.
b) There are three unlimited plans, and each plan incorporates the service charge. Translate each plan into an algebraic expression using the service charge expression from the above question.
Plan 1: $8 less than twice the amount of the service charge.
Plan 2: The quotient of the service charge and 2 increased by a fee of $50 per month.
Plan 3: The sum of half the number of months cubed and a third of the service charge.
c) Which plan would be most cost effective for a 2-year contract? Show all calculations that led to your results. Explain your results comparing the 3 plans.
d) Sharaf Digital is having a special promotion by challenging customers to create their own plan. Customers must write a verbal expression that must include the service charge and at least two operations. The operations to choose from are listed below.
If the plan is within $15 per month of one of the original 3 plans then the customer could choose that plan.
Create a 4th plan and show all calculations that led to your results.
Answer:Samsung Galaxy Z Fold3 5G 256GB Phantom Black Smartphone
USD 1343
a) All the plans have a base service charge of $23 per month plus the cost of the phone. Write an expression to represent the service charge.
1343 + 23m
b) There are three unlimited plans, and each plan incorporates the service charge. Translate each plan into an algebraic expression using the service charge expression from the above question.
Plan 1: $8 less than twice the amount of the service charge.
(service charge is 23 per month so)
1343 + 2(23m– 8)
Plan 2: The quotient of the service charge and 2 increased by a fee of $50 per month.
1343 + (23m/2 + 50m)
Plan 3: The sum of half the number of months cubed and a third of the service charge.
1343 + (1/2m3 + 1/3(23m))
c) Which plan would be most cost effective for a 2-year contract? Show all calculations that led to your results. Explain your results comparing the 3 plans.
Plan 1: 1343 + (24(23 – 8) = 1703
Plan 2: 1343+ (24x61.5) = 2819
Plan 3: 1343 + (1728 + 552) = 3623
Plan 1 is the most cost effective because it is the cheapest
d) Sharaf Digital is having a special promotion by challenging customers to create their own plan. Customers must write a verbal expression that must include the service charge and at least two operations. The operations to choose from are listed below.
If the plan is within $15 per month of one of the original 3 plans then the customer could choose that plan.
Create a 4th plan and show all calculations that led to your results.
Operations: product, more than, less than, double, sum, divided by, square
The product of 3.5 and the total cost divided by 4
3.5(1343 + (24(23 – 8))/4 = 1490.13
Plan 4 = 1490.13/24 = 62.09
Plan 1: 1703/24
70.95
Step-by-step explanation:
Yo I need to bring up my math grade bad so
y>-x+1
(please show it graphed already :D)
Answer:
Step-by-step explanation:
I need help on this here is the question
Question: If sally has ? cake's and Give away 15 and has 9 left how much did she have before she gived away?
I have 5 days until I have hand it in to My teacher
Answer:
Step-by-step explanation:
24
The trial balance of pacilio security services, incorporated as of january 1, year 7
A trial balance is a bookkeeping worksheet where the balance of all ledgers are being compiled into the debit and credit column.
What is a trial balance?It should be noted that a trial balance simply means a list of the general ledgers account that are contained in the business ledger.
The rule for the preparation of a trial balance is that the total debit entries must be equal to the total credit entries.
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Does sin, cos, tan work for all triangles?
Answer:
No
Step-by-step explanation:
SOH CAH TOA, or sin cos tan, only works on right triangles.
Erika ran 2 miles in 18 minutes and 3 miles in 27 minutes
Find the distance between the points!? Help
Answer:
3\sqrt(5)
or 6.71
Step-by-step explanation:
What is the surface area of the triangular prism shown?
A triangular prism. The triangle faces have base 14 meters and height 24 meters. The rectangular bottom has dimensions 10 meters by 14 meters. The height of the prism is 25 meters.
558 m2
976 m2
1,680 m2
1,750 m2
Answer: 726 meters²
Step-by-step explanation:
We will need to find the area of five shapes. The base, the top/bottom, and the two triangle sides.
The area of a triangle is B * H / 2. Since we have two congruent triangles, I will not be dividing by two.
14 * 24 = 336 meters²
-> This value is for both of the triangle faces
The rectangular bottom is L * W
14 * 10 = 140 meters²
The two rectangles for the top and bottom will also be L * W. Since these are congruent, I will find the area of one and multiply it by two.
10 * 25 = 250 meters²
Now I will add them all together for the total surface area:
336 + 140 + 250 = 726 meters²
-> I don't see this as an option choice listed. I will review my work, but I am currently confused on the options they provide.
coefficient on a scatter plot
Find the volume of the cylinder. Explain or show your reasoning. All measurements are in centimeters
Step-by-step explanation:
height (h) = 8cm
radius (r) = 5cm
volume of cylinder (v) = [tex]\pi[/tex]r^2h
= 22/7 * (5)^2 * 8
= 628.571cm^3
How do I find a missing length of a triangle?
if your parents shop in maryland the sales tax is 6% if they buy $180 worth of groceries what is there total
You can do this problem in two ways.
Either the long way or the short and easy way.
Here is the easy way:
You do 180x1.06 to get you their total of $190.80
Or you can do the slightly longer way which finds you the tax amount which then you can add onto the total:
You do 180*0.06 which gets you $10.80 of tax. $10.80 is how much tax they have to pay on top of the $180, then we can do 180+10.80 to get us the grand total of $190.80.
Happy to help
Select the THREE expressions that are equivalent to 6x+ 1 - (3x - 1)
The copy machine at the library made a copy of Leslie's 3-page essay in just 1/10 of a minute. What is the speed of the copy machine?
Answer:
30 pages
Step-by-step explanation:
https://brainly.com/question/17253194
Speed is the change in distance of a body with respect to time.
Speed = Distance/Time
If the library made a copy of leslie's 3 page essay in just 1/10 of a minute, this means that she made 3 pages in (1/10 * 60)secs i.e 6secs
To get the speed, we need to calculate the amount of page of essay that are produced in a minute (60secs).
If 3 page essay = 6secs
x page essay = 60 secs
cross multiply
3*60 = 6x
180 = 6x
x = 180/6
x = 30
This shows that 30 page essays are produced in just a minute. Hence the speed of the copy machine is 30page essay/min.
Drag the tiles to the correct boxes to complete the pairs. Match the pairs of coordinates with the distances between them.
Answer:
See belowStep-by-step explanation:
Use distance formula and find the result for each pair of points.
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]1)
[tex]d=\sqrt{(1-4)^2+(-2-2)^2} =\sqrt{9+16} =\sqrt{25} =5[/tex]2)
[tex]d=\sqrt{(2-(-8))^2+(-3-7)^2} =\sqrt{100+100} =\sqrt{200}[/tex]3)
[tex]d=\sqrt{(1-9)^2+(9-1)^2} =\sqrt{64+64} =\sqrt{128}[/tex]4)
[tex]d=\sqrt{(-8-(-2))^2+(2-(-6))^2} =\sqrt{36+64} =\sqrt{100} =10[/tex]#1
√(4-1)²+(2+2)²√3²+4²√5²5units#2
√(-8-2)²+(7+3)²√10²+10²√200units#3
√(9-1)²+(1-9)²√8²+8²√128units#4
√(-2+8)²+(-6-2)²√6²+8²√10²10units