Mathematics High School

What is the solution to the following system of equations?
f+ 3g = 15
f- g = 7

Answers

Answer 1

Answer:

g=2

f=5

Step-by-step explanation:

add g to the other side on the 2nd equation. you should get f=7+gnow replace the f in the top equation with 7+g. the equation should now look like 7+g +3g = 15combine like terms to get 7+4g=15subtract 7 from both sides to get 4g=8divide by four to get g=2now plug 2 in for g in the 2nd equation to get f-2=7add 2 to both sides and get f=5

Related Questions

During a basketball practice, Mai attempted 40 free throws and was successful on 25% of them. How many successful free trows did she make?

Answers

Answer:

She made 10 free throws

Step-by-step explination:

I found it on this website: https://staff.4j.lane.edu/~ruzicka/Cal_Young/math/Illustrative%20Math/Unit%203%20Rates%20and%20Percents/Lesson%2011/L11%20HW%20Key%20Corrected.pdf

Try it and see if you are right

Can someone Please help me with this ??

Answers

D.
y = 2/3x - 2
the easiest way to do this without doing actual math is to just graph it

In the figure, line m
|| line n.
х
m
740
What is the measure of angle x?
O A. 940
O B. 74°
O C. 100°
D. 106°

Answers

94 is the correct answer I believe

What is the answer for this equation 600 is 4/9 of what number 

Answers

Answer:

933.3333333

Step-by-step explanation:

If y varies directly as x, and y=-4 when x=8, find y when x=3

Answers

Pretty sure it is -9 :)

What is the answer to 3m + 4m + 6m + 5m

Answers

Answer: 18m

Step-by-step explanation:

you have to add 3 + 4 + 6 + 5. it equals 18.

FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (30pts)

Answers

its 16 hope this helps

Can someone help me please!!!

Answers

Answer:

Step-by-step explanation:

(0,8)(8,0)

find slope

m=-1

b=8

y=-x+8

Answer:

y= -1x+8

Step-by-step explanation:

slope is -1/1 and your y intercept is (0,8)

Find the domain and range of f(x)=4*(1/2)^x

Answers

domain is the set of x-values and range is the set of y-values.

Kathleen correctly answers 85% of the total questions on a math question correctly answer 17 questions use proportions to find the total number of questions on Kathleen's math quiz

Answers

Answer:

I am don't know sorry

Step-by-step explanation:

sorry follow me

WILL GIVE BRAINLIEST

Answers

Slope: 3
Y intercept: 11 or (0,11)
Equation: y = 3x + 11

Sully has a loan which he repays every month. If the loan amount includes interest, his loan amount due, in dollars, after t years, is shown by the following expression.

7,000(0.90)^12t

Which statement below best describes the coefficient, 7,000?

A. The number of times sully repaid the loan since he began making payments
B. Sully’s initial loan amount
C. The decrease in Sully’s loan amount every month
D. The rate at which Sully repays the loan

Answers

i would say its B. The initial loan amount

Answer:

Sully's initial loan amount

edit: i accidently rated my answer as 1 star but i promise its right

Complete to get an equivalent fraction:
5/4 = _____/20

Answers

Answer:25

Step-by-step explanation:

Simply multiply by five on both the 5 and 4 and you get an equivalent fraction

Answer:

25/20

Step-by-step explanation:

I set up a proportion and to find the how 4 goes to 20, I divided 20/4 to get 5 and then I multiplied 5*5 to get 25.

You can also cross multiply.

what is y + 20 < 180? please help me

Answers

Answer:

y < 160

Step-by-step explanation:

y + 20 < 180

    -20 < -20

y < 160

y is less than 160

so the answer is y < 160

happy to help!

What is the slope of this line?

Answers

Answer:

A line is increasing if it goes up from left to right. The slope is positive, i.e. m > 0 {\displaystyle m>0} .

A line is decreasing if it goes down from left to right. The slope is negative, i.e. m < 0 {\displaystyle m<0} .

If a line is horizontal the slope is zero. This is a constant function.

If a line is vertical the slope is undefined (see below).

Which values of m make 1/4 m > 3 true ?

Answers

Answer:

m > 12

Step-by-step explanation:

I) Find what m is in 1/4m = 3:

1/4m = 3

Divide by 1/4:

m = 12

II) Make an inequality:

m > 12

please answer don’t comment if u don’t know

Answers

Answer:

the first answer choice

Step-by-step explanation:

if you do 1/3 times -9 its -3

HELP I NEED HELP ASAP

Answers

Answer:

linear

Step-by-step explanation:

linear, that would be letter -

Simplify the following expression 2n+6+4y+8

Answers

Answer:

2n+4y+14

Step-by-step explanation:

Answer:

So we are going to Simplify 2n+6+4y+8

First thing we add the numbers:

2n+6+4y+8=

2n+14+4y=

Which equals

2n+4y+14

Answer :

2n+4y+14

What is 6 x 1.11?
Give your answer in pounds.

Answers

Answer:

Step-by-step explanation:

6.66 pounds is the correct answer

Hailey took a taxi from her house to the airport. The taxi company charged a pick-up fee of $2.40 plus $4.50 per mile. The total fare was $87.90, not including the tip. Write and solve an equation which can be used to determine mm, the number of miles in the taxi ride.

Answers

Answer:

The taxi drove Hailey for 19 miles.

Step-by-step explanation:

1. Subtract the tip.

$87.90 - $2.40 = $85.5

2. Divide by the price per mile. ($4.50)

$85.5 / $4.50 = 19

Solve the following equation:
1.3(a + 2) + 5.6 = 17.3

Answers

Answer:

a=7

Step by step Explanation:

Step 1: Simplify both sides of the equation.

1.3(a+2)+5.6=17.3

(1.3)(a)+(1.3)(2)+5.6=17.3(Distribute)

1.3a+2.6+5.6=17.3

(1.3a)+(2.6+5.6)=17.3(Combine Like Terms)

1.3a+8.2=17.3

1.3a+8.2=17.3

Step 2: Subtract 8.2 from both sides.

1.3a+8.2−8.2=17.3−8.2

1.3a=9.1

Step 3: Divide both sides by 1.3.

1.3a      9.1

1.3     =   1.3

a = 7

 

my school bag contains 9 books each mass 2/9 kg and 5 folder each mass 7/25 kg what is the total mass of books and folders in my bag​

Answers

9*2/9= 18/9= 2kg
5*7/25= 35/25= 1 10/25= 1 2/5 kg
1 2/5kg+2kg= 3 2/5kg or 3.4kg
total mass equals 3 and 2/5kg or 3.4kg

An employee saved 25% of her $400 paycheck. How much money did she save?

Answers

Answer:

she had save 100 dallors

help!!!!!!!!!!!!!!!!!!!!!!!!!!! im a dummy

Answers

your scientific notation will be 2.505 x 10^4

42 = y + 15 whats y? y == __

Answers

y=27 because 42-15 is 27

Solution

[tex]y=27[/tex]

Step-by-step explanation:

Subtract [tex]15[/tex] from both sides of the equation:

[tex]42=y+15[/tex]

[tex]42[/tex][tex]-15=y+15[/tex][tex]-15[/tex]

Simplify:

Subtract the numbers:

[tex]42-15=y+15-15[/tex]

[tex]27=y+15-15[/tex]

Subtract the numbers:

[tex]27=y+15[/tex][tex]-15[/tex]

[tex]27=y[/tex]

Move the variable to the left:

[tex]27=y[/tex]

[tex]y=27[/tex]

[tex]y=27[/tex]

I NEED HELPPP

-2 x -3 =?

Answers

Answer: 6

Step-by-step explanation: -2 x -3 = 6 cause the negatives cancel out to make 6.

Answer:

ok, lol it's 6

Step-by-step explanation:

hope it helps! it basically doing 2 x 3 which equals 6 sometimes you'll add the negative sign but in this equation u dont need to

Use elimination to solve for x and y:
5x + 4y = 23
x - 4y = - 5
O (3, 2)
O (2,3)
0 (7. – 3)
0 (7,3)

Answers

Answer:

x=3, y=2

Step-by-step explanation:

If f(x) = x and g(x) = 2, what is (f•g)(x)?

Answers

Answer:

A

Step-by-step explanation:

(f*g)(x)=(2)*(x)=2x

A

(GIVING BRAINLIEST!!!)

Last night, Roberto spent 90 minutes doing homework, infinity symbol hour reading, and 540 seconds making his lunch for the next day. How many more minutes did Roberto spend doing homework than he did reading and making his lunch?

A) 81 minutes
B) 50 minutes
C) 49 minutes
D) 41 minutes

Answers

Answer:

A) 81 minutes

Step-by-step explanation:

Other Questions
pleaseee anyone help me I just need this !!!!!!!!!!!!!!!!!!! This is for today I have until tonight to finish someone help me plsss!!! What are the horizontal and vertical asymptotes of the graph of y2 + 324 - 81?O A. y = 0; x = 3B. y = 0; x = -3 and x = 3O C. y = 1; x = 9o D. y = 1; x = -9 ANSWER QUICK 50 POINTSYou have the following code in your program.from array import *Which line of code would create an array?D = array([2.5, 3, 7.4])D = array('f',[2.5, 3, 7.4])D = array['f',[2.5, 3, 7.4]]D = array('f',2.5, 3, 7.4) The advantage of having many potential suppliers is their willingness to A. provide technical expertise. B. participate in JIT. C. provide innovations. D. offer lower prices in the short term. [tex]2x^2-20x=x^{2} -19[/tex] Can You be more specific Among the alkaline earth metals in Group 2A/A, which is more reactive - beryllium (element 4) or strontium (element 38)? How do you write a system of equations with the solution (-1,-1)? NEED HELP WILL MARK BRAINLIEST!!! how do you solve this problem? 4^x=3x/2+5 Write the equation of the line that passes through the points (-1,3) and (-6, -7).Put your answer in fully reduced point-slope form, unless it is a vertical or horizontalline. A hair stylist has three colors of hair dye. She has 4 bottles of chestnut, 7 bottles of blond, and 8 bottles of cherry. What does the ratio 8:19 represent in this situation? Explain your reasoning. Include a model in your explanation. What are the three stop codons? Since we have international human rights standards for all, why is it important to talk about womens human rights? courtney has 12 fewer stickers than tina. how many stickers does courtney have in terms of x?bob has 4 times as many stickers as tina. how many stickers does bob have in terms of x? katie has 7 more stickers than tina. how many stickers does katie have in terms of x?diane has 2/3 as many stickers as tina. how many stickers does katie have in terms of x?options:x - 124xx + 712 - xx - 2/34 + x7x is partially enclosed body of water where seawater mixes with fresh watertA(n)form a river.A. benthic zoneB. littoral zoneC. seaD. estuaryE. coral reef y = 1/2x + 4x - y = 8*Substitution I need help with geometry on finding the area of the triangle or trapezoid with these three problems What is 50.00 simplified . A scale drawing of a town park has a scale of 2 inches : 300 feet. What is the actual length of each foot in the drawing?