Calcula y:
14x - 5y = 60
8x - 2y = 36

Seleccione una:
A. 2
B. 6
C. 10
D. 5
E. 8

Answers

Answer 1

Answer:

Step-by-step explanation:

-28x + 10y = -120

 40x + 10y = 180

12x = 60

x = 5: D is the answer

8(5) - 2y = 36

40 - 2y = 36

-2y = -4

y = 2: A is the other answer


Related Questions

What single percentage change is equivalent to a 17% decrease followed by a 12% increase​

Answers

Answer:

7.04% decrease

Step-by-step explanation:

Lets use 5 example

5*0.17=0.85

5-0.85=4.15

4.15*0.12=0.498

4.15+0.498=4.648

7.04% of 5 is 4.648

yxyxyxyxy simplified

Answers

Answer:

5y * 4x or 5y4x

Step-by-step explanation:

:)

Which of the following correlation coefficients would represent the strongest correlation?

.84

-0.56

0.12

-0.91

Answers

I think its -.91 I don’t know if its correct but doesn’t hurt to try?

Select True or False. (1 point) The expression 3x − 4(2x − 5) is equivalent to the expression 20 − 5x. True False

Answers

Answer:

yes

Step-by-step explanation:

because of the way this is put the result simplified would be 3x-8x-20

3-8=-5

so the answer is 20-5x

x=0.25 btw

solve x²+5x+6=0 what is this answer

Answers

Answer (there are two solutions):

x = -3x = -2

I hope this helps!

Answer:

x=-2   x=-3

Step-by-step explanation:

x²+5x+6=0

Factor

What 2 numbers multiply to 6 and add to 5

2*3 =6

2+3 =6

(x+2)(x+3) =0

Using the zero product property

x+2 =0  x+3 =0

x=-2   x=-3

Find (g-)(x).
f(x)=1/x
g(x) = x^2+ 2x-5​

Answers

Answer:

C. x^2+ 2x-5​ - 1/x

Step-by-step explanation:

Givenf(x)=1/x g(x) = x^2+ 2x-5​To find(g-f)(x)Solution(g-f)(x) = g(x) - f(x) =x^2+ 2x-5​ - 1/x

Correct one is C

it takes Ryan 1/5 hour to bike home from school. his biking speed is 10 mph
how far apart are the school and his house

Answers

1/50? I can’t be sure....

Ok, so.. first you write both the problems down and write the 10 as a fraction (so it would automatically be 10/1). Then invert so it would be a multiplication problem (1/5 x 1/10). Since you can’t cross cancel, you multiply across. So, 1/5 x 1/10 (1 x 1 and 10 x 5)
1/50

What season is it in the northern hemisphere?
A) spring
B) fall
C) summer
D) winter

Answers

Answer:

In the Northern Hemisphere right now it is Fall.

PROVE ALGEBRAICALLY THAT 0.5 = 5/9

Answers

Answer:

See Below.

Step-by-step explanation:

Let:

[tex]0.\overline{5}=n[/tex]

If we multiply both sides by 10, we get:

[tex]5.\overline{5}=10n[/tex]

Now, we will subtract n from both sides:

[tex]5.\overline{5}-n=10n-n[/tex]

On the left, we can replace the n:

[tex]5.\overline{5}-.\overline{5}=10n-n[/tex]

Subtract:

[tex]5=9n[/tex]

Divide both sides by 9:

[tex]n=\frac{5}{9}[/tex]

Hence:

[tex]n=0.\overline{5}=\frac{5}{9}[/tex]

Tom is a lawyer who makes $132,000 per year. If his legal assistant, Alec, makes 53% of his salary, find Alec’s salary.​

Answers

Answer: 69,960

Step-by-step explanation: all you have to do is divide 132,000 by 53%.

Click the picture which is the correct answer?Make sure the answer is actually right really need help !

Answers

h = 2(A/a+b) is the correct formula

Chris is taking out a loan for $2500 with a simple interest rate of 7% for 36 months. How much interest will he have to pay at the end of the loan period? *

Answers

Chris will have to pay back $2,675. you do 2500x7%=175+2500

Anybody know the slope to this?

Answers

the slope is -2. To find slopes you do rise/run between each point. In this it rose 2 and ran 1 and the direction of the line is negative.

Discuss the difference between fixed expenses and variable expenses as they relate to a budget

Answers

Answer:

Fixed expences are expences that don't change month-to-month, whereas variable expences are things that are needing to budgeted for every month, but may vary a bit and are therefor usually estimated on a budget.

Step-by-step explanation:

For example, rent would be a fixed expense because you know it will be X amount due on the same day every month.  Food, on the other hand, would be a variable expense because it likely won't be the same amount month-to-month.

Answer:

Fixed expenses are expenses that stay the same for a person or a business. An example of a fixed expense is rent/mortgage. This expense doesn't change if you are only using the building for 2 weeks or the entire month, it's a set rate. A variable expense is an expense that changes like an electric bill, it varies based on the month and usage. When you budget, you can easily budget for your fixed expenses but you need to allow some room in your budget for expenses that change.

I am so confused, I think that is D, xD​

Answers

Answer:

it is D.... PERIODT

Step-by-step explanation:

A t-shirt increased in price by
1

4
. After the increase it was priced at £20. What was the original price of the t-shirt? I will mark you the brainliest!

Answers

Answer:

5

Step-by-step explanation:

20×1/4=20/4=5

1/4×20/4=20/4=5

USE THE INFORMATION AT
THE RIGHT TO SORT THE
STATEMENTS AS EITHER TRUE
OR FALSE.
A local restaurant serves 8 entrees for every 5
desserts. Which combination of entrees and
desserts does the restaurant serve?
The restaurant could serve
40 trees and 26 deuters
The restaurant could servo
240 destorte and 150 entret
The restaurant could serve
24 entrees and 20 desserts
DRAG
THESE
The restaurant could serve
30 douters and 48 antros
The restaurant could serve
64 ontroos and 40 desterte
The restaurant could serve
98 antrees and 60 desterts.
PROPORTIONS AND PERCENTS
TRUE
FALSE

Answers

Answer:True

Step-by-step explanation:

3(x - 2) + 4(2x - 6) = 6(x - 4) + 8(2x + 1)

Answers

Answer:

x=-14/11 or -1.27 or -1 3/11

Step-by-step explanation:

Answer:

-14/11

Step-by-step explanation:

Simplify both sides of the equation

(Distribute)

(Combine Like Terms)

Subtract 22x from both sides.

Add 30 to both sides.

Divide both sides by -11

= -14/11

3(x-2)+2(4x-1) is my question plz answer quick

Answers

Answer:

11x - 8

General Formulas and Concepts:

Pre-Algebra

Distributive Properties

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

3(x - 2) + 2(4x - 1)

Step 2: Simplify

Distribute:                              3x - 6 + 8x - 2Combine like terms (x):         11x - 6 - 2Combine like terms (Z):         11x - 8

plz answer quickly....​

Answers

Answer:

23 degrees

Step-by-step explanation:

angles subtended by a chord of the circle, on the same side of the chord ate equal

or

line segment joining 2 points subtends two equal angles

Show for y
3x + 2y = 6​

Answers

Step-by-step explanation:

3x + 2y = 6

-3x -3x

2y = 6 - 3x

/2 /2 /2

y = 3 - 1.5x

Do you want me to solve for y because that’s y=3- 3x/2

...*PLZ HELP* This goes for ALL answers >...Given the following word problems, write an inequality that models the problem, then solve and check.

.1. 18 people are in a swimming pool. The maximum capacity for the swimming pool is at most 54 people. How many people can still enter the swimming pool?

.2. Rob earns $6 for each umbrella he sells. He wants to make at least $66. How many umbrellas does he need to sell?



.4. An amusement park needs more than 15 roller coaster rides working before they can open. Currently, 6 rides are working. How many more rides need to be working for the park to open?

.5. A basketball coach wants less than 54 players at the basketball camp. Currently, 42 players are registered for the camp. How many more players can register?

Answers

Answer:

See below

Step-by-step explanation:

1.

18 + x ≤ 54x ≤ 54 - 18x ≤ 3636 more people at most

2.

6x ≥ 66x ≥ 66/6x ≥ 11At least 11 umbrellas

4.

6 + x > 15x > 15 - 6x > 9More than 9 rides

5.

42 + x < 54x < 54 - 42x < 12Up to 12 more players

Elmer goes to the store and buys a pair of sunglasses for $65. The
store is running a discount of 20%. What is the price of the pair of
sunglasses after the discount?

Answers

Answer:

$52

Step-by-step explanation:

Dicount: 20%

Discounted price: 80%

80% x $65 = $52

Topic: Percentage

If you would like to find out more, you can check out my insta (learntionary) I do post tips / notes. Notes for this topic have been posted already. you can take a look if you want to thanks

65 times .20 is 13 dollars. So now you subtract 13 from 65. Your answer is 52

5. Two sides of a right triangle are 8 inches and 12 inches. What is the length of the Hypotenuse​

Answers

Answer:

19.7ft

Step-by-step explanation:

o^2+a^2=h^2

\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}

h^2=100ft^2+289ft^2

h=389ft^2−−−−−√

→19.7ft

Answer:

Step-by-step explanation:

a^2 + b^2 = c^2

where a and b are the legs of the triangle and c is the hypotenuse

so 8^2 + 12^2 = c^2

64 + 144 = c^2

208 = c^2

take the square root of both sides

c = 14.422

A math tutor decides to increase his wage by 11%. What expression shows his new wage after the 11%

Answers

Answer:

1.11w

Step-by-step explanation:

Let initial wage = w

Percentage increase in wage = 11%

Using the relation :

New Amount = initial * (1 + % increase)

New Amount = w * (1 + 0.11)

New amount = w * (1.11)

New amount = 1.11w

Hey everyone I need help!! Is my answer right? If not please say what is the right answer and explain! I will mark you brainlist after but yea have a great day everyone!!!!!!

Answers

Answer:

it would be 2 pieces and 1/3

One jug of powdered plant food treats an area of 140 square feet of flowers. How many jugs would be needed to treat an area of 175 square feet?

Use a graph plz!

Answers

Answer:

Step-by-step explanation:

Let [tex]n[/tex] and [tex]A[/tex] the number of jugs and the area of flowers, measured in jugs and square feet. We assume that exists a direct relationship between both variables. That is:

[tex]A \propto n[/tex]

[tex]A = k\cdot n[/tex] (1)

Where [tex]k[/tex] is the proportionality constant, measured in square feet per jug.

If we know that [tex]n = 1\,jug[/tex] and [tex]A = 140\,ft^{2}[/tex], then the proportionality constant is:

[tex]k = \frac{A}{n}[/tex]

[tex]k = 140\,\frac{ft^{2}}{jug}[/tex]

Then, the relationship between both variables is represented by:

[tex]A = 140\cdot n[/tex]

If we know that [tex]A = 175\,ft^{2}[/tex], then the minimum number of jugs needed to treat the area is:

[tex]n = \frac{175\,ft^{2}}{140\,\frac{ft^{2}}{jug} }[/tex]

[tex]n = 1.25\,jugs[/tex]

Since jugs represents a discrete set, then we round this number up to the next integer. In other words, we find that 2 jugs are needed to treat an area of 175 square feet.

Lastly, we present a graph to estimate the minimum value of jugs:

The State Fair charges $25 for admission and $1.25 for each ride. You go to the park
with a total of $40. How many rides are you able to ride?
A.12
B.13
C.14
D.15

Answers

Answer:

12 Rides

Step-by-step explanation:

After you pay $25 for admission you only have $15 left. If you multiply 1.25 × 12 you get 15.

Answer: A. 12

Step-by-step explanation:

40 - 24 = 15

15/1.25 = 12

Hope this helps :)

what's the error and the solution ​

Answers

Answer:

the error is the last step. and the solution is 9

Step-by-step explanation:

8-5c=-37

-8         -8

-5c/-5 = -45/-5

c= 9                               i hope that helps you bobby:)

Select the graph that matches the function y = 3x + 7.

Answers

There’s no graphs attached
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