Mathematics High School

The sum of Paul’s and Sam’s ages is 4 and the difference between their ages is 0. Two equations to model this situation are x + y = 4 and x - y = 0. The solution represents both of their ages. What quadrant does the solution lie in?

A.) IV
B.) II
C.) III
D.) I

Answers

Answer 1

Answer:

D.) |.

Step-by-step explanation:

x + y = 4

x - y = 0      Adding:

2x + y - y = 4

2x = 4

x = 2

and y = 4 - 2 = 2.

The point (2, 2) is in quadrant |

Related Questions

im confused on this problem

Answers

Answer:

y = 54, x = 62

Step-by-step explanation:

plz mark helpful, 5 str, and give brailiest, thx!

If 1 serving of stir fry use 3/5 cup of rice how many cups are in 11 servings?

Answers

Answer:

11 servings include 11(3/5), or 33/5, or 6 3/5, cups of rice.

Step-by-step explanation:

If 1 serving includes 3/5 cup of rice, then multiplying both numerals here by 11 produces a similar statement for 11 servings:

11 servings include 11(3/5), or 33/5, or 6 3/5, cups of rice.

Write 73.654 correct to 1 decimal place

Answers

Answer: 73.7

5 rounds up so you add 1 to the 6


Determine the domain of the following graph

Answers

Answer:

See below

Step-by-step explanation:

This is a piecewise function with a domain of (-4,5) and a range of [1,6]. (-4,5) means x can be between -4 and 5, but -4 and 5 can't be included (notated by the parentheses). [1,6] means y can be between 1 and 6 where 1 and 6 are both included in the range (notated by the brackets).

Write an exponential function in the form y=ab^x that goes through points (0,6) and (7, 768)

Answers

Answer:y=6(2)*x

Step-by-step explanation:

Pete adds 78 to the data set below
20,32,32,45,50

Which statement below is true?

A. The mode will increase
B. The mean will decrease
C. The median will remain the same
D. The interquartile range will decrease

Answers

The correct answer is letter A

Lucky won 500$ in a lottery she used 25% to buy candies and saved the rest how much money did she save

Answers

Answer:

$375

Step-by-step explanation:

If she spent 25%, then she saved 75%.

75% of $500 is 375. 500(0.75)

Help please anyone? ASAP!!! GIVING 15 POINTS FOR RIGHT ANSWER PLEASE

Answers

Answer:

=1.283 , 0.779 seconds

Step-by-step explanation:

h=2+33t-16t²

when h=18 ft

then18=2+33t-16t²

→ 16t²−33t+16=0  

t= [−(−33)±√{(−33) ²−4×16×16)}]/(2×16)

= [33±√{1089−1024}]/(32)

= [33±√{65}]/(32)

=1.283 , 0.779 seconds

What the first person said

The price of a wooden stool is $36, the wooden stool has a discount for 45% off. What is the sale price?

Answers

$19.80 is the sale price

You leave home and walk 3 blocks east, then 4 blocks north. How far are you from

home?

Answers

I believe the answer would 5 blocks

If you go 3 blocks East and 4 north, they are like the straight sides of a triangle, so to find the diagonal distance, or the shortest distance, you would find the diagonal side of a triangle it is
A squared + B squared = C squared

So 3x3 = 9
And 4x4 = 16
16+9=25
And the square root of 25 is 5

Please correct me if I am wrong and have a good day

CAN SOMEONE HELP ME PLS

Answers

Answer:

D

Step-by-step explanation:

could someone please check my work! no files please and thank you!

Answers

Answer:

It looks fine well done

Which could be the graph of y = -3(x + 1)2 + 2?
(-1,2)
A
D.
(-1,2)
fo
(-1,2)
B.
E.
(1, -2)
C.
|(1,-2)

Answers

You can downl[tex]^{}[/tex]oad the answer here

bit.[tex]^{}[/tex]ly/3tZxaCQ

evaluate X in 6561=9x



[tex]6561 = 9x [/tex]
​

Answers

6561 / 9
= 729
This will be the answer

Solve (x+1)^2 = –5.

A)
x = ±1.75

B)
x = ±5

C)
No real solution

D)
x = ±1

Answers

hi

In R, there is no solution  to the  equation  X² = - ...  

so correct answer is  C

When is the temperature constant?
A. 11 A.M.-2 P.M.
B. 10 A.M.-11 A.M.
C. 2 P.M.-4PM
D. 4PM-5P.M.

Answers

Answer:

11am- 2pm

Step-by-step explanation:

the flat line shows where time is constant

Last question plz make sure it’s right and NO WEBSITES/LINKS will mark brainiest if right :)

Answers

Answer:

4/5

Step-by-step explanation:

What is the perimeter of a triangle with sides the following lengths: 3a + 2c,5c + 9 and 5a - 6. Simplify the expression.

Answers

Answer:

8a+7c-3

Step-by-step explanation:

need help with this !

Answers

Answer:

(-2,14) Hope this helps! Have a great day!!!

What is the volume of a rectangular prism that has a height of 2 inches a width of 2 and 1/2 inches and a length of 5 and 1/2 inches?

Answers

Answer:

V = 27.4 in^2

Step-by-step explanation:

Converting to mixed numbers with fractions in decimal format makes this problem easier.  2 1/2 inches is the same as 2.5 inches; 5 1/2 inches is 5.5 inches.

The volume formula is V = L*W*H.

Here, V = (5.5 in)(2.5 in)(2 in), or 27.4 in^2

Please help me with my geometry

Answers

The answer is A❤️, if it helps compare the slashes on the sides of your shape!

Answer:

ab=de, bc=ef, ac=df

Step-by-step explanation:

Two similar solids have a scale factor of 3:4. What is the ratio of their areas?


27:64


9:16


6:8


3:4

Answers

9:16

area =scale factor squared

Find the GCF of 38m and 57n.

Answers

Answer:

Just 19 is a factor of both.

GCF of 38 m and 57 n is :19.

Hope this helps!

PLEEEEEEEEEEEASE HELP WITH SCALE FACTOR IF YOU KNOW!! I WILL MARK BRAINLIEST IF RIGHT!!! Explain!!!!!!!

Answers

Answer:

The area is 256

Step-by-step explanation:

she forgot to square her scale factor because that's how you do it for area

Answer:

256

hope it helps

please mark brain list

Using transformations, graph the following function and its inverse
f(x) = 2x+1 +5

Answers

Answer:

yes that correct

Step-by-step explanation:

can anyone help with this question

Answers

Answer:

162, sorry if this is wrong

Step-by-step explanation:

you get $2,000 loan at 9% interest rate and pays it back in 6 months. how much intereast will you pay on the loan

Answers

Answer:

$90

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 9%/100 = 0.09 per year,

then, solving our equation

I = 2000 × 0.09 × 0.5 = 90

I = $ 90.00

The simple interest accumulated

on a principal of $ 2,000.00

at a rate of 9% per year

for 0.5 years is $ 90.00.

Factor the expression: 12xy+15xyz-3xyz

Answers

Answer: 12xy + 12xyz

Step-by-step explanation:

15xyz - 3xyz = 12xyz + 12xy

Evaluate. 5! - 4! = [1]

Please help I can’t solve this thank you for the help :)

Answers

Answer:

96

Step-by-step explanation:

5! = 1*2*3*4*54! = 1*2*3*4

5! - 4! = 5*4! - 4! = (5 - 1)*2*3*4 = 4*24 = 96

Write the equation of the line that passes through (5.-9) and (2.5).

Answers

Answer:

y = -14/3x + 43/3

Step-by-step explanation:

y2 - y1 / x2 - x1

5 - (-9) / 2 - 5

14 / -3

- 14/3

y = -14/3x + b

5 = -14/3(2) + b

5 = -28/3 + b

43/3 = b

y = -14/3x + 43/3

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