Solve by substitution. 2x+5y = 13
3x = 7 +5y

will give brainliest

Answers

Answer 1

Answer:

(4.1) Equation Form: x = 4 , y = 1

Answer 2

Answer: (4,1)

Step-by-step explanation:


Related Questions

Given an arc of a sector is three times its radius, find the angle subtended by the arc.​
HELP!!

Answers

Answer:

The angle subtended by the arc is 171.8873385 degrees (3 radians)

Step-by-step explanation:

The formula of the length of an arc of a sector is L = [tex]\frac{x}{360}[/tex] × 2 π r, where

x is the central angle subtended by the arcr is the radius of the circle

∵ An arc of a sector is three times its radius

L = 3r

→ Equate the formula of the length of the arc by 3r

[tex]\frac{x}{360}[/tex] × 2 π r = 3r

→ Divide both sides by r

∴  [tex]\frac{x}{360}[/tex] × 2 π = 3

→ Simplify the left side

∵  [tex]\frac{\pi }{180}[/tex] x = 3

→ Divide both sides by  [tex]\frac{\pi }{180}[/tex]

∴ x = 171.8873385°

The angle subtended by the arc is 171.8873385 degrees (3 radians)

11. Mike is driving a boat at 12 mph and is increasing his speed by 0.2 mph each second. Hank is driving a boat
at 25 mph and is decreasing his speed by 0.7 mph each second. Which of the following equations could be used
to determine x, the number of seconds it will take for the boats to be traveling the same speed?
A. 12x + 0.2 = 25x -0.7
C. 12.2x = -25.7x
B. 12 -0.2x = 25 +0.7X
D. 12 +0.2x = 25-0.7x

Answers

12+0.2x=−25−0.7x

Stay Safe!!

Describe the solution of the system of equations graphed below.
3x+y=-6
9x+3y=-18

Answers

i do belive it is 27

Linda put $130 to start a bank account. At the end of each week, Linda goes to the bank and either makes a withdrawal (takes money out) or a deposit (puts money in). The first four weeks of Linda's bank activity are listed. Week 1: withdraws $125 Week 2: deposits $400 • Week 3: withdraws $240 • Week 4: deposits $183 She wants to use the money she has her account to buy a music system worth $575. How much more money does she need? A $218 B. $227 C. $348 $357​

Answers

Answer:

?

Step-by-step explanation:

Answer:

227

Step-by-step You subtract 130 with 125 which will give you 5 Then you add 400 which is 405 then you subtract 405 by 240 which is 165 and finnaly you add 165 with 183 and get 348. You then take that 348 and subtract it by 575

( 575 - 348 ) and get 227.

What is the solution to the system of equations below?
Y= -1/3x +6 and x=-6

O (-6, 8).
O (-6, 4).
O (8, -6).
O (4, -6)

Answers

Answer:

O (8, -6)

Step-by-step explanation:

brainiest plz

Answer:

(-6,8)

Step-by-step explanation:

Have a good day

which system of inequalities is shown?

Answers

Answer:

d is the right answer.

y is greater than x

y is equal to 4

Step-by-step explanation:

15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Answers

Answer:

b) 1000m

Step-by-step explanation:

the law of sines.

you know all the angles and the length of the side a

Anyone know this?need help ASAP

Answers

Answer:

45

Step-by-step explanation:

I used Toa to figure it out. First I did Tan(32) times 13 and got 45.

If you were to flip a coin 20 times, what is the probability you will get at least 13 heads?

Answers

Answer:

A good chance because getting heads is most likely what you will get

Step-by-step explanation:

Which quadrant would contain the point of showing 8°C above zero and an increase of 4 people sledding !
A: Quadrant 1
B:Quadrant 2
C:Quadrant 3
D:Quadrant 4

Answers

Answer:

yvhj gycvnuvngfyggjcgybkivuv

Answer:

Quadrant 1

Step-by-step explanation:

Find the slope and y-intercept of the graph of the equation.
y = 9x + 7

Answers

Answer:

Slope: 9x/1 and y-intercept is 7 (0,7)

Step-by-step explanation:

200x52-77=
please answer correct

Answers

The assertion is 10323 UwU hope I helped

Craig likes to collect records. Last year he had 4 records in his collection. Now he has 7 records. What is the percent increase of his collection?​

Answers

Answer:

75% I believe

Step-by-step explanation:

A 100% increase would be 8 so adding one would be a 25% increase. since 3 were added it would be 75

Select the correct answer. Which expression is equivalent to the given expression? ​

Answers

Answer:

B

Step-by-step explanation:

2x times x = 2x²

2x times -6 = -12x

1 times x = x

1 times -6 = -6

= 2x² - 12x + x - 6

= 2x² - 11x -6

What is the value of the x variable in the solution to the following system of equations? (1 point)

4x + 2y = 12
x − y = 3

0
−3
3
2

Answers

Answer:

-3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

4x + 2y = 12

x − y = 3

Make it able to cancel the variable y.

x*2 − y*2 = 3*2

2x − 2y = 6

Add the equations together now that y can be canceled out. Add each like term of the separate equations together.

   4x + 2y = 12

+  2x − 2y = 6

   6x + 0 =  18

6x = 18

6      6

x = 3

I hope this helps!

plzzz help me with this ​

Answers

Ok, to prove the two triangles, we need reasoning:

1) the side AC is common (as you can see, both triangles share the side AC)

2) angle DCA is equal to angle BAC (this is due to alternate angles)

3) angle BCA is equal to angle DA (again, this is due to alternate angles)

Allen has a 75 yard spool of yarn. He needs to cut the spool of yarn into 6 1/4
yard pieces of yarn.
How many 6 1/4
yard pieces of yarn can Allen create from the 75 yard spool of yarn?

A. 6 pieces

B. 12 pieces

C. 20 pieces

D. 36 pieces

Answers

Answer:

B. 12 pieces

Step-by-step explanation:

75 / 6 1/4 or 75 / 6.25 = 12

Answer:

b (12)

Step-by-step explanation:

How do u show work for this problem

Answers

Just show how you dived the equation and found the X

Answer:

im not seeing the problem...

Can the equation below be used to solve the following? If not, explain why.
0.75x + 3 = 0.25x + 5.25

At an ice cream shop, customers pay $3.00 for medium ice cream plus $0.75 per topping. At a second ice cream shop, customers pay $5.25 for a medium ice cream plus $0.25 per topping. How many toppings would a customer have to order for the ice cream to cost the same at either shop?

Answers

Answer:

Yes; the equation and the problem do match.

Step-by-step explanation:

NEED HELP ASAP GIVING BRAINLEST TO CORRECT ANSWER

Rob is saving to buy a new MP3 player. For every $16 he earns babysitting, he saves $7. On Saturday, Rob earned $96 babysitting. How much money did he save? If he earned $96, he saved $_____.

Answers

Answer:

$42

Step-by-step explanation:


What is the measure of angle A?
A.54
B.60
C.16.3662
D.66
E.126

Answers

Answer:

c.

Step-by-step explanation:

It is A. 54. The outside angles correspond with the inside angles to form supplementary (180) angles. So 180-120= 60, 180-114= 66. Next u add those values,126, and subtract from 180. This is because the sum of three triangle angles must be 180. So the final answer is 180-126=54

The late fee at the library is based on the number of days a book is late. Carter paid $1.08 for a book that way nine days late. Her sister Sydneys had a fever of $1.92 for a Late book how many days late was a book

Answers

Answer:

16 days

Step-by-step explanation:

108/9 is 12. The late fee is 12¢ per day. 16x12 is 192.

Check For Understanding
CELL PHONES A Cell phone company is going to build three new towers in a nearby city. The city council has
released s map that shows where the towers will be built. On the map, the distance between towers A and B is 2
centimeters, the distance between towers B and C 3 centimeters, and the distance between towers A and C is 4
centimeters. A technician needs to visit the stes of the three towers, and he has outlined his travel route between
them on a map. The polygon formed by his travel route on the map will be similar to the polygon formed by the
technicians he drives to the three towers. If the actual distance between tower Band tower C is 600 meters, how
for was the technican have to travel to visit all three cell phone towers?

Answers

Answer:

Distance between A ----> B : 2 cm

B ---> C: 3 cm : 600 meters

A----> C: 4 cm

3:600 meters scaled

So its 200 meters per every 1 cm!

From A to B : 400 meters

From B to C : 600 meters

Frok C to A: 800 meters

Therefore we sum 400+600+800= 1800 meters


Viral Marketing
An organization is trying to decide between three sets of assumptions for their viral
marketing campaign:
• Send the message to 20 people, and assume that each person will take 1 day to share
the message with 3 other, new people (and each of them will share with 3 new
people, and so on).
• Send the message to 5 people, and assume that each person will take 1 day to share
the message with 6 other, new people and each of them will share with 6 new
people, and so on),
• Broadcast the message by paying for a television commercial that reaches 100,000
people, but can't be shared easily.
For which scenario would the most people see the message by the 6th day that the
organization sent it?

Answers

Answer:

...

Step-by-step explanation:

If RT¯¯¯¯¯¯ is extended to contain a point W so the UW has a length of 8, what is the length of SW?

Answers

Answer:

8

Step-by-step explanation:

SW and UW are equal because they are at the midpoint . A midpoint is a point on a line segment that divides it into two congruent segments.

PLEASE HELP WILL GIVE 40 POINTS!!!!
The Pasadena High school biology club is planning a trip to Yosemite National Park. The trip will cost $300 per club member plus and $800 deposit. Which of the following graphs models the total average cost of the trip per club member?

Answers

Answer:

Answer: D (the last graph)

Step-by-step explanation:

In this item, we are given that each student is to pay an amount equal to $300 on top of the $800 that is assumed to be divided by the total number of students who will join the field trip. In this case, the more number of students, the lesser would be the amount the student will pay from the deposits.  

If there are infinite number of students, one student will partake almost $0 in the deposit. The answer to this item therefore is the last graph.

Answer:

d

Step-by-step explanation:

Solve x − y = 5 for y.

Answers

Answer:

-y=5-x

Step-by-step explanation:

Answer:
y=-5+x

Explanation:
Goal: to isolate y
x-y=5
Subtract both sides by x
x-y-x=5-x
-y=5-x
Divide both sides by -1 to make y positive
y=-5+x

I hope this helps! Please comment if you have any questions.

david is 5 years older than jonathan. in 6 years, double jonathans age added to quadruple davids age will equal to 128. what is each of their current ages?

Answers

Answer:

David a 17 ans et Jonathan a 12 ans  

Step-by-step explanation:

David aura 23 ans dans 6 ans et Jonathan aura 18 ans dans 6 ans

Donc 23 * 4 = 92 et 18*2 = 36 comme 92+36=128 on trouve leurs ages dans 6 ans et on soustrait ensuite 6 à leurs ages dans 6 ans pour trouver leurs ages aujourd'hui


A town's population is 38,200. About 100 people move out of the town each month. Each month, 150
people on average move into town. A nearby town has a population of 40,400. It has no one moving in
and an average of 150 people moving away every month. In about how many months will the
populations of the towns be equal? Write an equation to model the situation. Then solve the equation
and answer the question.

Answers

Answer:

in 11 months

Step-by-step explanation:

y=50x+38,200

y=-150x + 40,400

11 months. please mark me brainliest

Zoey is going to invest in an account paying an interest rate of 3.4% compounded
quarterly. How much would Zoey need to invest, to the nearest ten dollars, for the
value of the account to reach $81,000 in 8 years??

Answers

Answer:

61780

Step-by-step explanation:

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