need help on a systems of equations word problem

Need Help On A Systems Of Equations Word Problem

Answers

Answer 1

Answer:

brazil: 12.8 portugal: 14.769230769230769 (you need to round it)  

Step-by-step explanation:

just divide.


Related Questions

can I have some help? and with an explanation could help win brainist.

Answers

Answer:

20 units

Step-by-step explanation:

Hope this helps u :D

Answer:

24 units

Step-by-step explanation:

The distance between 2 and 4 is 2.

2 + 2 = 4

The width is 2 units.

The distance between - 3 and 5 is 8.

- 3 + 8 = 5 or 8 - 3 = 5

4 + 8 + 4 + 8 = 24


Which ordered pairs are solutions to y = x + 1?
A (0,1),(1,2), (2,3)
B (0, -1), (2, -1), (3,-2)
C (0,1),(1,2), (2, 4)
D (0,1),(2, 1), (3, 1)

Answers

Answer:

A. ( 0, 1 ), ( 1, 2 ), ( 2, 3 )

Step-by-step explanation:

( x, y ) = ( 0, 1 )

Here,

x = 0

y = 1

y = x + 1

1 = 0 + 1

1 = 1

( x, y ) = ( 1, 2 )

Here,

x = 1

y = 2

y = x + 1

2 = 1 + 1

2 = 2

( x, y ) = ( 2, 3 )

Here,

x = 2

y = 3

y = x + 1

3 = 2 + 1

3 = 3

Help please ASAP
2. A birthday present is placed into a rectangular
shoe-box. The box has the following dimensions: 3
inches by 7 inches by 8 inches. What is the minimum
amount of wrapping paper needed to cover the
entire box?
a.
146 sq. in.
b.
101 sq. in.
C
202 sq. in.
d.
168 sq. in.

Answers

Answer: 168 sq. in.

Step-by-step explanation: the shape is a cubiod the volume is lbh=3*7*8=168

What’s the ratio of 42¢ to $1.25?

Answers

42:125, 42/125 or 42 to 125

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

B. y = 85x

Step-by-step explanation:

First, find the rate of change of the graph:

Rate of change = change in y/change in x

Using two points (0, 0) and (4, 300),

Rate of change (m) = (300 - 0)/(4 - 0) = 300/4

Rate of change (m) = 75

Compare this with the rate of change of the given equations in the options.

✔️Option A: y = 65x + 100

The rate of change of this equation is 65, which is less than the rate of change of the given graph (75)

✔️Option B: y = 85x

The rate of change of this equation is 85, which is greater than the rate of change of the given graph (75)

✔️Option B: y = 50x + 150

The rate of change of this equation is 50, which is less than the rate of change of the given graph (75)

✅Therefore, the equation that has a greater rate of change than the one shown in the graph is y = 85x

A map uses a scale of 3 centimeters to represent 20 miles. The distance between Mt. Hope and
Camden is 56 miles. Which proportion can be used to find x, the distance between Mt. Hope and
Camden on the map?

Answers

Answer:

20 is to 56 as 3 is to x

20x= 8.2

Which graph represents y as a function of x?​

Answers

Answer:

b

Step-by-step explanation:

Answer:  Graph A (upper left corner)

=======================================================

Explanation:

Graph B, C and D all fail the vertical line test. If it's possible to pass a vertical line through more than one point on the curve, then it's said to have failed the vertical line test. Any vertical line itself therefore is automatically not a function. If a graph fails the vertical line test, then it is not a function.

A function is only possible if for any given input x, we have exactly one and only one output. For graph A, the output is the same value regardless of the input. This is a constant function.

For something like graph B, the input x = 0 produces three different y outputs. The output y = 0 is one of those, and the others are off the screen so it's hard to tell what they are. Turns out it doesn't matter and all we need to do is the vertical line test. Graphs C and D are a similar story. In the case of graph D, the only input x allowed is x = 2 and it produces infinitely many y outputs.

From a barrel of colored marbles, you randomly select 1 blue 6 yellow 7 red 4 green and 6 purple marbles

Answers

Complete question :

From a barrel of colored marbles, you randomly select 1 blue 6 yellow 7 red 4 green and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is NOT yellow.

Answer:

Step-by-step explanation:

Total number of marbles :

Blue = 1 ; yellow = 6 ; red = 7 ; green = 4 ; purple = 6

Total = (1 + 6 + 7 + 4 + 6) = 24 marbles

Probability of selecting marble that is not yellow :

Number of marbles that aren't yellow / total number of marbles

Marbles that aren't yellow = 24 - 6 = 18

P(selecting a marble that isn't yellow) = 18 / 24 = 3/4

what is the value of x?

Answers

Answer:

37.5

Step-by-step explanation:

Question #12: What is the mean absolute deviation of Hailey's science
scores? 70 82 84 94 *

Answers

Answer: 82.5

Explanation:

You take out a $3300 loan at 10.25% interest compounding continuously.
a) If you don't make any payments, how much would you owe after 12 years?
b) when will you owe $4000

Answers

Use the interest calculator on googcorrect

-6x² + 8x + 10is in what form?

A)Standard
B)Linear
C)Vertex
D)Parent

Answers

Step-by-step explanation:

The given quadratic equation is in standard form.

Find the volume of the solid.



The volume of the solid is____
cubic centimeters.

Answers

27 cubic centimeters

2. Determine how much is in a retirement account after 20 years if $5,000 was invested at 6.05%
compounded weekly.

Answers

Answer:

16,755.63

Step-by-step explanation:

I'm going to assume that there are 52 weeks in a year

Compound interest formula:

[tex]PV(1+\frac{i}{n})^{n*t}\\5000(1+\frac{.0605}{52})^{52*20}\\5000(1.001163462)^{1040}\\16755.63406[/tex]

which i wwill round to

16755.63

The amount in the retirement account is A = $ 16,755.63

What is Compound Interest?

Compound interest is interest based on the initial principle plus all prior periods' accumulated interest. The power of compound interest is the ability to generate "interest on interest." Interest can be added at any time, from continuously to daily to annually.

The formula for calculating Compound Interest is

A = P ( 1 + r/n )ⁿᵇ

where A = Final Amount

P = Principal

r = rate of interest

n = number of times interest is applied

b = number of time periods elapsed

Given data ,

Let the compound interest amount be represented as A

Now , the interest rate r = 6.05 %

The number of times the interest is applied = weekly

The principal amount P = $ 5,000

Now , the number of years = 20 years

And , A = P ( 1 + r/n )ⁿᵇ

On simplifying , we get

A = 5,000.00(1 + 0.0605/52)⁵²ˣ²⁰

A = 5,000.00(1 + 0.0011634615384615)¹⁰⁴⁰

A = $ 16,755.63

Hence , the amount is A = $ 16,755.63

To learn more about compound interest click :

https://brainly.com/question/21270833

#SPJ2

A local government wants to test a theory about the amount of water consumed by elderly people compared to young people. If the government uses a stratified random sample, what is an appropriate method for grouping the population? A. Group by the number of houses in each street. B. Group by ZIP code. C. Group by the amount of water stored by each house. D. Group by the members in each family.

Answers

Answer:

group by each member in each family. I got a 100%

Step-by-step explanation:

Answer:

group by each member in each family.

Step-by-step explanation:

whats the slop of
y=1/4-4/5x

Answers

Answer:

4/5

Step-by-step explanation:

when given slope intercept form , the slope is the constant beside x

Answer: 5x -16

                  20X

Step-by-step explanation:

Simplify 4/5x

Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

5x - (4 • 4)     5x - 16

————————————  =  ———————

    20x            20x  1/4 - 4/5x

Could someone pls help me with this!!

Answers

Answer: y = -f(x+1)

when adding in paratheses, graph moves negatively, and when subtracting it moves positively

the function also flips so it is entirely negated

Eli and Alexis began saving money the same week. The table below shows
the models for the amount of money Eli and Alexis had saved after x
weeks.

Answers

Ummm there’s no question or table

In 1990, the population of the U.S. was about 250 million and was growing exponentially
at a rate of about 1% per year. At this rate, in what year will the population have
doubled?

a. 2080
b. 2070
c. 2060
d. 2050

Answers

Answer:

The correct answer is C.

Step-by-step explanation:

Giving the following information:

Present Value (PV)= 250 million

Future Value (FV)= 500 million

Growth rate (g)= 1% per year

First, we need to calculate the number of years required for the population to double:

n= ln(FV/PV) / ln(1+g)  

n= ln(500/250) / ln(1.01)

n= 69.66 = 70 years

It will take 70 years for the population to double.

What is 5681 subtracted by 2890 equal to?
(Solve it on paper!)

Answers

Answer:

2791

Step-by-step explanation:

5681

- 2890

_______

2791

Which property would you use to simplify the following expression ? 3(y + 4)

Answers

Answer:

Distributive property

Step-by-step explanation:

You would use the distributive property to simplify this. The simplified expression is 3y+12

Answer:

Distributive property

Step-by-step explanation:

3(y + 4) ← multiply each term in the parenthesis by 3

= 3y + 12

Explain box and whisker and how does it work?

Answers

a box plot is a graph that summarizes numerical data based on quartiles, which divide a data set into fourths

what is the length of the hypotenuse of a right triangle with legs or 5cm and 6cm

Answers

Answer:

hypotenuse = squareroot of 61 cm.  which is approximately 7.81025 cm

Step-by-step explanation:

5 squared + 6 squared = hypotenuse squared

square root of (5 squared + 6 squared)= hypotenuse

7.81


use the formula a^2+b^2=c^2
put number in formula accordingly
5^2+6^2=c^2

solve: 25+36=61

find the square root of 61

answer is 7.81

This graph shows Arnie’s net gain or loss for the day after 200 people have played. What most likely explains these results?

Answers

Answer:

200 + 67 ^+ 8

Step-by-step explanation:

A school club needs 300 feet of rope for a project. They have the amounts of rope listed below.



• 2 pieces of rope that are each 16 yards in length

• 1 piece of rope that is 12.5 yards in length

• 1 piece of rope that is 123.25 feet in length



How much additional rope, in feet, does the school club need in order to have enough rope for their project?

Answers

Answer: You need an additional 132.25 ft

Step-by-step explanation:

It’s really just addition and then subtraction dude

please help ill mark brainliest!

Answers

Answer:

subject?

Step-by-step explanation:

Step-by-step explanation:

you can look at the image.

ect the correct answer.
Which of the following graphs represents the equation below?

Answers

Seems like none of them +4 unit up yaxis

Where is Point C on the number line?

Answers

Answer:

i think 1.0

Step-by-step explanation:

Write 9x - 8 as a verbal expression

Please the fast as possible!

Answers

Answer:

8 subtracted from the product of 9 and x

Hope this helps!

Andy estimated that he would need 73 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 62 feet. What was the percent error of Andy's estimation?

Answers

Answer:

17.74%

Step-by-step explanation:

The formula for percent error is given as:

|Estimated value - Actual value|/Actual value × 100

From the above question:

Estimated value = 73 feet

Actual value = 62 feet

Hence,

Percent error = |73 - 62|/62 × 100

= 11/62 × 100

= 17.741935484%

Approximately , percent error = 17.74%

Therefore, the percent error of Andy's estimation is 17.74%

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