Mathematics High School


4x - 3y = -3
4x + y=17
The solution is....

Answers

Answer 1
1. Subtract the second equation from the first and solve for y: 0 - 4y = -20 => y=5
2. Substitute y=5 into one of the equations and solve for x: 4x - 3(5) = -3 => 4x = 12 => x=3

So the solution is (x, y) = (3, 5)

Related Questions

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Answer:

a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.

Step-by-step explanation:

Answer:

D.

Hope that helps!

Step-by-step explanation:

3. A teacher made a copy of a map. To make the map easier to see, the teacher enlarged the area of the map by 38%. Let d represent the area of the original map. The expression d + 0.38d is one way to represent the area of the new map. Write two expressions that represent the area of the new map.​

Answers

Answer:

1.38d

Step-by-step explanation:

Help me with this!! I will mark Brainliest!!!

Answers

Answer:

1...-

Step-by-step explanation:

Mindy looks outside her window and sees limp tomato plants in the garden. She quickly waters the plants, and by the end of the day, the plants are upright with firm stems. How did watering the tomato plants straighten the stems?

Answers

Answer:

Do you have options.

If not I am guessing because the roots sucked the water up distributing it throughout the entire plant making it hydrated and strong to stand.

Step-by-step explanation:

A boat travels 10 miles per hour upstream and 16 miles per hour downstream. How fast is the​ current?

Answers

Answer: The speed of the current is 3 miles per hour.

Step-by-step explanation:

Let x = speed of boat , y= speed of current.

Given:

x-y=10         (Upstream)       ...(i)

x+y= 16   (Downstream)       ...(ii)

Adding (i) and (ii), we get

2x=26

⇒ x= 13

Put x=13 in (i), we get

13-y=10

⇒ y=13-10

⇒ y=3

Hence, the speed of the current is 3 miles per hour.

х^2x+x(x^x) when x ,=2​

Answers

Answer:

X= 81

your welcome :)

Step-by-step explanation:

a function may assign the same output value to two different input values

Answers

this is true i i i i i i i i i i i i

Does this equation have one solution, many solution or no solutions? and why? I need to show my work

Answers

Answer: I worked it out on a piece of paper then attached it. It is a No Solution

Step-by-step explanation:

Answer:

−12x−4=−(x+1)

−12x−4=−x−1

−11x−4=−1

−11x=3

and this is your answer x=−3/11

20 POINTS! WILL MARK BRAINLIEST!

If the equation for the diagram below is 25=13+2r, what should go in the blank circle?

Answers

Step-by-step explanation:

[tex]25 = 13 + 2r \\ 25 - 13 = 2r \\ 12 = 2r \\ \frac{12}{2} = r \\6 = r[/tex]

re-write -3x−8y−4−87z in an expression using only addition.

Answers

Answer:

-3x + (-8y) + (-4) + (-87z)

Step-by-step explanation:

Mark the absolute maximum point of the graph

Answers

(7,7) is the maximum point in the graph. This is because it is the highest shown point that is above 0.

Brainliest???

-..-.-...-.---...-...-

last seen in quicky mart 1979​

Answers

Answer:

what the hell is this

Step-by-step explanation:

I want to pour bleach into my eyes

Joe is 6 feet tall and cast a 3 foot shadow. He is standing next to a building that cast a shadow that is 20 feet long. How tall is the building.​

Answers

Answer:

40 feet

Step-by-step explanation:

Answer:

40 feet tall

Step-by-step explanation:

6/2 =3

?/2 =20

*2    *2

? = 40

you do inverse operations because 6 divided by 2 is 3... the ? is the variable for how tall the building is... ? divided by 2 = 20 so you multiply 2 and 20 to get the total height

Can you help me with this question?​

Answers

Answer: 5 :))))

Step-by-step explanation: 10 dived by 2 equals 5. btw ( divide the number of songs by the number of commercials)

youll get your answer that way!!

320 is what percent of 138?​

Answers

Answer:

43.13

Step-by-step explanation:

Did you sleep with a comfort object as a child? Do you still? No
need to stuff that teddy bear from your infant years in your closet the
next time you have a guest over—the odds are good that he or she has
a comfort object, too. A study conducted by Sleepopolis and
OnePoll reported that 34% of adults still sleep with a stuffed animal,
blanket, or other sentimental object, according to a survey of a random
sample of 100 adults. A similar study, based on a random sample of 80
children reports that 75% of children sleep with a comfort object.

Do these data provide convincing evidence that the proportion of adults
who sleep with a comfort object is less than the proportion of children
who sleep with a comfort object? Justify your answe

Answers

Answer:

depends how random it was, it could vary between countries and stuff. but lets say its random between ethnicities. I think it doesn't really have enough people to be sure, I would say a thousand and not 100, but that's just me.

c = the number of Nora's coworkers who attend the picnic v = the number of veggie burgers Nora prepares Which of the variables is independent and which is dependent?

Answers

Answer: Independent variable = c

Dependent variable = v

Step-by-step explanation:

The independent variable does not depend on any other variable.Dependent variable dependent on another variable.

Given variables:

c = the number of Nora's coworkers who attend the picnic

v = the number of veggie burgers

Here the number of burgers required is dependent on the number of Nora's coworkers who attend the picnic.

Therfeore, Independent variable = c

Dependent variable = v

. JKLM is a kite. m∠JMZ = 41°, and m∠JKZ = 52°. Find m∠KJZ, in degrees. *

Answers

Answer:

54 jskiyeb ja no te aimfotito

Glenn and Helen are playing ping pong. For every 3 points that Glenn scores, Helen scores 6 points. If Glenn scores 9 points, how many points does Helen score? I NEED HELP A. 18

B. 162

C. 9

D. 54

Answers

Answer:

18

Step-by-step explanation:

Helen always scores twice as much as what Glenn scores so you multiply what Gleen scores to get Helen's score 9×2 =18


find the exact value of x.

Answers

Answer:

9*√3

Step-by-step explanation:

The exact value of Sin60 = √3/2

Sin(60)  = opposite side/ hypotenuse

hypotenuse = 18

√3/2 = x / hypotenuse

√3 / 2 = x / 18     multiply by 18

18 √3 /2 = x        divide by 2  

9 √3   = x

The admission fee at an amusement park is 1.5 dollars for children and 4 dollars for adults. On a certain
day, 380 people entered the park, and the admission fees collected totaled 1070 dollars. How many
children and how many adults were admitted?
Your answer is
number of children equals
number of adults equals

Answers

C+A=380
C*1.5+A*4=1070

Multiply first equation by 4 and subtract the second equation from the first:

C*2.5=450
C=180
A=200

Weird.....more adults than children at the amusement park?

answerr to –m+8–9m+–8m+–10m

Answers

Answer:

USE THIS APP AS A GUIDE DO NOT USE IT AS AN ANSWER KEYYYYYY!!! ALRIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

https://photomath.app/en/

Answer:

-28m+8

Step-by-step explanation:

Combine like terms

(-m + -9m + -8m + -10m) + (8)

What color is a carrot

Answers

Answer:

uh i think its a carrot uh

Step-by-step explanation:

uhh

Answer:

joe biden

Step-by-step explanation:

(
What is the measure of angle xº?

Answers

X will equal to 30 degrees

Answer:

its 30 and i think we go to the same school..

Step-by-step explanation:

Mr. Takaya can eat three slices of pizza in five minutes. If he continues to eat at the same rate, how many slices
could he eat in half of an hour?

Answers

Answer:

18.

Step-by-step explanation:

3 x 6 = 18. He eats 3 slices every 5 minutes so 5 minutes x 6 is half an hour. so 18 is your answer.

If Takaya continues to eat three slices of pizza in five minutes, he could eat 18 slices in half of an hour.

What is the Linear equation in one variable?

The Linear equation in one variable is an algebraic equation of degree one.

it can be expressed in the form of Ax +B = 0 where x is a variable, and A and B are two integers.

Takaya can eat three slices of pizza in five minutes.

for half an hour it would be 6 times five minutes.

So, in half an hour Takaya can eat 3 × 6 = 18

Therefore, If Takaya continues to eat three slices of pizza in five minutes, he could eat 18 slices in half of an hour.

Learn more about Linear equations in one variable here:

https://brainly.com/question/2501033

Help me get my answers

Answers

Step-by-step explanation:

positive

weak

linear

hope this helps

Mrs. Portillo cuts 1 /2 of a piece of construction paper. She uses 1/ 5 of the piece to make a flower. What fraction of the sheet of paper does she use to make the flower?

Answers

Answer:

1/2 x 1/5 = 1/10.

Step-by-step explanation:

Answer : fraction of the sheet of paper she use to make the flower is 1/10

What is 70 + 4 rounded to the nearest ten?

Answers

Answer:

Step-by-step explanation:

We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.

We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4. If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.

Answer:

70

Step-by-step explanation:

70+4= 74

Find the number in the spot (tens place/7) go next door see what you go (4) Five or more you raise the score, four or less you let it rest.

4 is four or less so you let it rest by replacing it with a zero.

Answer= 70

help me please, brainliested ;)

Answers

Answer:

3/2 the slope is the rate of change

Step-by-step explanation:

What is the measure of < BCD ? Justify your answer.​

Answers

Answer:

please mark brainlist please

Step-by-step explanation:

4π/3 radians. Triangle A B C has angles labeled as follows: A, (101x + 2) degrees; B, 34x degrees; C, unlabeled. The measure of ∠BCD is 120°. )

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