Mathematics High School

7x - y = 10
x - 4y = - 14

Answers

Answer 1

Answer:

(2, 4)

Step-by-step explanation:

i hope this is what you needed.

Related Questions

If 35 people going to the movie bought popcorn and that was 20% of all the people at the movie how many people were at the movie

Answers

Answer:  

Im pretty sure it would be 700 but im most likely wrong.

The correct answer is 175

If 35 people is 20% of all people, we can assume that 35 is 1/5 of all the people at the movie since 20% is 1/5 of 100%


All we have to do is multiple 35 by five.



I can prove my answer by dividing 175 by 5 which would give me 20% of 175

Mathh please help and actually do it

Answers

Answer:

Parallel

Step-by-step explanation:

they have the same slopes

Answer:

i believe its b sir. brainliest?

Step-by-step explanation:

The graph represents the distance in miles, y: that Car A travels in x minutes. The function y x represents the distance, y; that Car B travels in x minutes. Both cars are moving at a constant rate of speed. Which BEST compares the rates of the two cars? The rate of Car B is 1 of a mile per minute less than the rate of Car A 6 Bi The rate of Car A is of a mile per minute less than the rate of Car B. The rate of car B is 2 of a mile per minute greater than the rate of Car A. Car A and Car Bare traveling at the same rate per minute.​

Answers

Explain

More information
X
Step by step solutions

A person wants to purchase a pair of shoes and some pairs of socks. He has less than $121 to
spend. If a pair of shoes costs $30 and each pair of socks costs $8, what is the maximum
number of pairs of socks he can purchase?

Answers

the answer is 11

first you need to subtract 30 from 121 since you want one pair of shoes

then to know how many socks you can have divide 91 (the result) and 8 (the price of the socks)

and you can only buy 11

(the more detailed answer is 11.375)

Find the median of the following numbers:
95, 113, 95, 105, 86, 122

Answers

Answer:

100

Step-by-step explanation:

First, order the numbers from least to greatest.

86, 95, 95, 105, 113, 122

Second, look for the middles numbers, if you have an even amount of numbers you will have to find the mean of the two middle numbers.

86, 95, 95, 105, 113, 122

Thirdly, add 95 and 105 together and then divide by two because two is the total amount of numbers you have.

(95 + 105) / 2 = 100.

So the median is 100


....................

Answers

Answer: B

Step-by-step explanation:

Create the line using the information given which is y=3x-9 and find the zero by making y = 0

What is the slope of a line that has points (5,-3) and (11,5) ? Remember to simplify.

Answers

Answer:

slope= y²-y¹

x²-x¹

= 5--3

11-5

= 5+3

6

= 8

6

= 4/3

or 1.33

help me plzzzzzzzzzzzzz

Answers

A y-9=-2(x+3 that really answer

Jaime ran the first 1000 meters in 4 minutes. At that rate, how long would it take Jaime to run 2500 meters?

Answers

Answer:

10 minutes i think

Step-by-step explanation:

1000 divided by 4 gives u 250 so she ran 250 meters each minute ....so 2500 divided by 250 gives u 10 so jamie can run 2500 meters in 10 minutes

Tracy a teacher is and she's paid a monthly salary of $3,728 calculate her salary per annum

Answers

Answer:

$44,736

-

Hourly: $21.51

Daily: $172.06

Weekly: $860

Bi-Weekly: $1,721

Semi-Monthly: $1,864

Monthly: $3,728

Quarterly: $11,184

Annual: $44,736

Whats the slope of the line?

Answers

Answer:

m = rise/run = 4/5.

Step-by-step explanation:

This line goes throught the "exact" grid intersections (-2, 0) and (3, 4).  As we move from the first point to the second, we see that x increases by 5 (this is the 'run') and y increases by 4 (this is the 'rise').  Thus, the slope of this line is m = rise/run = 4/5.

The translation of ABCD to A’B’C’D is given by (x+[?],y-[ ])

Answers

Answer:

(x + 2, y - 4)

Step-by-step explanation:

The translation is 2 units right and 4 units down from the original image.

(x + 2, y - 4)

Osetion Progress
Homework Progress
a cm
R
Dia
dra
In the diagram shown,
PQRS is a rectangle,
XY is parallel to PS,
RY = 9 cm,
Area of PQRS = 84 cm,
Area of PXYS = 21 cm.
Work out the values of a and b.
You must show all your working.
9 cm
ү
bcm
P
S

Answers

Answer:

The answer is below

Step-by-step explanation:

PQRS is a rectangle. The length of rectangle PQRS = 9 cm + b cm = (9 + b)cm

The breadth of PQRS = a. Hence:

Area of PQRS = length * breadth = (9 + b)(a) = 9a + ab

but Area of PQRS = 84 cm²

9a + ab = 84          (1)

In rectangle PXYS, length = QR = a cm, breadth = YS = b cm

Hence area of PXYS = length * breadth = (a)(b) = ab

But Area of PXYS = 21 cm²

ab = 21         (2)

substitute ab = 21 in equation 1:

9a + 21 = 84

9a = 84 - 21

9a = 63

a = 7 cm

ab = 21

7b = 21

b = 3 cm

Therefore a = 7cm, b = 3 cm

 

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 18 centimeters cubed.

A sphere with height h and radius r. A cylinder with height h and radius r.

What is the volume of the sphere?
12 centimeters cubed
24 centimeters cubed
36 centimeters cubed
54 centimeters cubed

Answers

Answer:

option a

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The length of a rectangle is (x + 2). The area of a rectangle is 3/4x + 1 1/2 square inches. what is the width of the rectangle?

Answers

Answer:

I'm sorry im not sure!! good luck though!!

The path of a flying fish as it made its approach to the surface of the ocean and flew out of the water is represented by the quadratic function h(t) = -t2 + 6t - 5, where t represents the time, in seconds, and h(t) represents the fish's height and depth, in feet. Graph the function using the graphing calculator. To the nearest second, how long was the fish out of the water?

1 second
3 seconds
4 seconds
5 seconds

Answers

Answer:

4 seconds

Step-by-step explanation:

fish broke the water's surface in 1 second and went back into the water at 5 seconds

∴ it was out of the water for 4 seconds

Answer:

4

Step-by-step explanation:

anyone know how to do this??

Answers

Answer:

x=5ft

Step-by-step explanation:

3 is half of 6, so triangle DEF is half as big as triangle ABC. Hope this helps.

HELP!!! Need to find the Area (Pic)

Answers

Answer: 173.82cm^2

Step-by-step explanation:

use Multistep Pythagorean Theorem to answer

Answers

Answer:

√5

Step-by-step explanation:

I think that is the answer I never come to such a question of changing things to radical form but I guess 5 cannot be multiplied by a number such that it has a square root so the answer is that√5

D'jair's vacation starts on July 18th and lasts one week. Kyoko's vacation is from July 18th to July 25th. Whose vacation was longer?

Answers

One week= 7 days
25-18=7
I believe both vacations are the same amount of time

In the year 2017. Silver Creek Middle School had 288 students. In the year 2018, the school
had 324 students. What was the percent of increase

Answers

Answer:

12.5 % increase

Step-by-step explanation:

percent increase: [tex]\frac{final-initial}{initial}[/tex] x 100

324-288 = 36/288 = 0.125 x 100 = 12.5 %


Sega makes brownies using a square pan that has a side
measure of x. He decides that he needs a new pan that is
6 inches longer on each side. Which expression represents
the area of the new pan?

Answers

Answer:

(x+6)*(x+6)

Step-by-step explanation:

solve to find x 3/4 (5x-3) + 8 = 17

Answers

Answer:

3

Step-by-step explanation:

3/4 (5x -3)+8=17

3/4 (5x -3) = 17 - 8 = 9

(5x -3) = 9 * (4/3)= 36/3 = 12

5x = 12 + 3 = 15

x = 3

help. rhombus JKLM is shown below. Find m<KLM

Answers

Answer: It's 76 (sorry, I answered it wrong!)

Step-by-step explanation:

In a rhombus, the diagonals split the angles into two equal parts. If one part of the angle is 38, then the other part is 38. Add up both of them, and you'll get the entirety of angle L, which is 76.

The volume of a rectangular pyramid is 152 in. What would be its
new volume if its dimensions were reduced to one-half their original
length?

Answers

Answer: I'm not the best at this so you might wanna wait for another answer but I think you just half 152??? so 76 :))) but I feel like you shouldn't trust me haha

Step-by-step explanation:

100% of ___ is 50

what is blank??

Answers

Answer: 50

Step-by-step explanation: 50 out of 50 is 100% just like 25 out of 50 is 50%

Answer:

50

Step-by-step explanation: 50 = 50

A city's population increases by 5% every year. If its population today is 300,000, write a function that models the population after x years.

Answers

Answer:

f(x) = 300,000(1.05)^x

Step-by-step explanation:

Use the exponential growth equation:

f(x) = a(1 + r)^x

Plug in 300,000 as a, since it is the original population:

f(x) = 300,000(1 + r)^x

The city's population is growing at 5% each year, so plug in 0.05 as r:

f(x) = 300,000(1 + 0.05)^x

f(x) = 300,000(1.05)^x

So, the function for the population growth is f(x) = 300,000(1.05)^x

Reynaldo works at Best-Buy and earns $12.50 per hour and works 32.5 hours a week. What is his straight-time pay?

Answers

12.50 X 32.50 = 406.25
The answer is 406.25

Hope this helps :)

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

b 4 Lee's than 3 times Mary's age is 3x-4

Answer:

3x -4

Step-by-step explanation:

we know this because Charlenes age is - 4 than Marys age.

Now, how much is that something? 3x

3x -4

Ivan and Tanya share £150 in the ratio 4:1
Work out how much more Ivan gets compared to Tanya.

Answers

Given: Ivan and Tanya share £150 with a 4:1 ratio.

Let x represent the variable amount of money.

Ivan: 4x
Tanya: x

4x + x = £150
5x = 150
x = 30

Ivan = 4(30) = £120
Tanya = £30

£120 - £30 = £90

Therefore Ivan gets £90 more than Tanya, which is four times more than Tanya.
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