25. Save the simultaneous equations 2x-y=4;x+y=5​

Answers

Answer 1

Answer:

Step-by-step explanation:

2x-y=4 ..........(1)

x+y=5 ...........(2)

Add equation 1 and 2:

We get:

3x=9

x=9/3

x=3

Substitute value of x in (2):

x+y=5

3+y=5

y=5-3

y=2

(3,2)


Related Questions

[tex]3\frac{3}{4} +8\frac{3}{4}[/tex]

Answers

15/4+35/4
25/2
12 1/2
Hope this helped
Ok done. Thank to me:>

What is the value of the expression m^4- 11 when m = 3? Use the number pad to enter your answer in the box.​

Answers

Answer:

70

Step-by-step explanation:

m^4 - 11

when m = 3

3^4 - 11

81 - 11

70

2x+5=12 i don´t know what the value of x is

Answers

Answer: X = 7/2 or 3.5

Can you help me on this math questions. Correctly thanks.

Answers

1.

In this equation, 2x + 6 has to be greater than or equal to y. You must substitute each coordinate into the equation and evaluate to find the correct answer. In this case, the answers are (-10, -20) and (7, 14).

2.

Same goes for this problem. The answers are (11, -32) and (-6, -2).

3.

Since we are given the line equation, we just determine the operator to use. Because it is a dotted line, that means that the point on the line is not included, so we will use a regular <>. Because the space highlighted indicates that -10x - 6 will always be greater than y, the answer is y < -10x-6, or C.

4.

We are given the line equation here as well. Since the boundary line is not dotted, we include the values, meaning we use [tex]\leq \geq[/tex]. Since the highlighted space indicates that y is always greater than or equal to x-5, the answer is [tex]y\geq x-5[/tex], so the answer is B.

14) In triangle ABC angle A measures 68 degrees and angle B measures 72 degrees. If the measure of
angle C is (x+ 10) degrees. What is the value of X?

Answers

Answer:

x= 30°

Step-by-step explanation:

plzz plzz plzz mark as brainliest

Answer:

30°

Step-by-step explanation:

68 + 72 + x + 10 = 180

x + 150 = 180

x + 150 -150 = 180 -150

x = 30

can someone please help me with this i have 2 questions so yeah..

1.Natalie and her friends decided to rent 4 lanes at regular cost for a party. Ten people need to rent shoes, and 4 people are members. What is the total cost for the party?

medium sodas cost $1.25 and hot dogs cost $2.50
2. Natalies group brought in pizzas, but is buying the drinks at the concession stand. How many medium sodas can Natalies group buy with $20? Make a table to show your answer.

Answers

Answer:

1. Hence, the answer is $74.50

2. Hence, the answer is 16.

Step-by-step explanation:

1. Given: Natalie and her friends decide to rent 4 lanes at regular cost for a party. Ten people need to rent shoes, adn 4 people are members.

To find: What is the total cost for the party?

Solution:

Since Natalie and her friends wanted to rent four lanes, we need to calculate this at REGULAR cost.

4 * 9 .75 = 39

Now since 10 people want to rent shoes, and 4 people are members, we subtract.

10 - 4 = 6

6 nonmembers

4 members

6 times the amount of shoe rental for 6 * 3.95 - 23.70

non members

4 times the number of members shoe rental 4* 2.95

11. 80

Now add the quantities

39 + 11.80 + 23.70 += 50.80 + 23.70 =

74.50

Now, our answer is 74.50

2.

Solution:

20 / 1.25 = 16

So the possible amount that can be bought is 16 medium sodas.

What is a^2 - 5b + the square root of c if
A= -3
B= 6
C= 16

Answers

Answer:

-21

Step-by-step explanation:

Choose the steeper line,


y=2x+8
or

y=4x+2

Answers

Hello!

y=4x+2 is the steeper line. The bigger the slope, the steeper the line.

Hope it helps!

~Just a cheerful gal

#CarryOnLearning

Answered by

[tex]SilentNature[/tex]

The inequality −3 < x is equivalent to the inequality x > −3.

Answers

The correct answer is 2086.56

A popular video game claims that the average time needed to reach level 10 Paladin is 3 hours with a standard deviation of 0. 4 hours. James thinks that he and his four friends are more skilled than the average gamer because it took them an average of only 2. 5 hours. Which of the following is the most restrictive level that would validate his claim? Upper-Tail Values a 5% 2. 5% 1% Critical z-values 1. 65 1. 96 2. 58 1% 2. 5% 5% 10%.

Answers

Answer:

1%

Step-by-step explanation:

0.4X2.5=1

A. Wealth
B. Level of living
C. liquidity
D. Assets

Answers

Answer:

D: assets.

Step-by-step explanation:

What is the length of segment AB?

A-5
B-6
C-8
D-10

Answers

D-10 I think or it could be b

the length of a cuboid is 3 times of it's height and it's breadth is 2 times it's height if the volume of the cuboid is 48000cm cube, calculate it's dimensions​

Answers

Answer:

The length, breadth and height of cuboid are 60 cm, 40 cm and 20 cm.

Step-by-step explanation:

Let,

The height of cuboid be X cm.The length of cuboid is three times of it's height. So, it will be 3x.The breadth of cuboid is two times of it's height. So, it will be 2x.

Now, substuting all the given values in the formula to find the value of x.

[tex]\longrightarrow{\sf{V_{(Cuboid)} = l \times b \times h}}[/tex]

➝ V = Volume ➝ l = length ➝ b = breadth➝ h = height

[tex]\begin{gathered} \qquad\longrightarrow{\sf{V_{(Cuboid)} = l \times b \times h}}\\\\\qquad\longrightarrow{\sf{48000 = 3x \times 2x \times x}}\\\\\qquad\longrightarrow{\sf{48000 = 3x \times 2{x}^{2}}}\\\\\qquad\longrightarrow{\sf{48000 = 6{x}^{3}}}\\\\\qquad\longrightarrow{\sf{{x}^{3} = \dfrac{48000}{6}}}\\\\\qquad\longrightarrow{\sf{{x}^{3} = 8000}}\\\\\qquad\longrightarrow{\sf{x = \sqrt[3]{8000}}}\\\\\qquad\longrightarrow{\sf{x = 20}}\\\\ \qquad{\star{\underline{\boxed{\sf{\purple{x = 20}}}}}} \end{gathered}[/tex]

Hence, the value of x is 20.

Now, we know the value of x. So, calculating the dimensions of cuboid :

Length = 3x

➝ 3 × 20➝ 60 cm

Breadth = 2x

➝ 2 × 20➝ 40 cm

Height = x

➝ 1 × 20➝ 20 cm

[tex]\rule{300}{2.5}[/tex]

I need a little help with trigonometric ratios. What is the ratio to find x? Please provide an explanation to get brainliest.

Answers

Answer:

tan 72 = 6/x

OR

cos 72 = x/15

Step-by-step explanation:

A good way to remember trig ratios is this

SOH CAH TOA -

sin = opp/hyp

cos = adj/hyp

tan = opp/adj

You can find x in a few different ways.

If you did tangent, it would be

tan 72 = 6/x (because tangent is opposite over adjacent)

Or, there's also the pythagorean theorem...

Mahmoud uses 3 cups of apple juice for every 4 cups of cranberry juice
.
to make a fruit drink.
a
How many cups of apple juice does Mahmoud use for 21 cups of the
combined fruit drink?

Answers

Answer:

9 cups of apple juice

Step-by-step explanation:

Write the equation of the line from the graph.​

Answers

Answer: x=-5

Step-by-step explanation:

Graph has no y intercept, thus has to be equal to x, and since its -5... x=-5 is your answer

Answer: X= -5

Step By-Step explantation:

What is slope ? Help me please

Answers

Answer:

Step-by-step explanation:

The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x). there you go.

chip and dip magazines ratio of men to women subscribers is 5 to 8 if they have 75000 women how many men

Answers

Answer:

46875

Step-by-step explanation:

Men  :Women = 5 : 8

Total parts = 5+8 = 13

Total number be x

[tex]\dfrac{8}{13}*x = 75000\\\\\\x =75000*\dfrac{13}{8}\\\\\\x = 121875[/tex]

Number of men = 121875 - 75000 = 46875

simplify the ratio 6 : 10 : 22​

Answers

Answer:

3:5:11

hope this helps u!!

Answer:

3    : 5   :   11​

Step-by-step explanation:

6 : 10 : 22​

Divide each term by 2

6/2 : 10/2 : 22/2

3    : 5   :   11​

pls help me with this

Answers

Answer:

6mm

Step-by-step explanation:

Evaluate the expression for b= 12

Answers

Answer:

-5

Step-by-step explanation:

substitute -b for -12 and add 7

Please help asap and please no links or answering just for points!! I’m already stressed :(

Answers

Answer:

let the number be x

wo a/q we have,

4x + 5 = 7

hope this answer helps you dear! take care

Which is bigger 12 cm or 102 mm

Answers

12 CM!!!!!!!!!!!!!!!!!!!!

On comparing the quantities 12 cm or 102 mm, 12 cm (120 mm) is greater than 102 mm.

To compare the sizes of 12 cm and 102 mm, both numbers should have the same unit.

Now, the conversion factor cm and mm is

1 cm = 10 mm

Then, using the conversion factor convert 12 cm to mm

12 cm = 12 x 10 mm

         = 120 mm

Now, compare 120 mm and 102 mm which gives 120 mm is greater.

Thus, 12 cm is greater than 102 mm.

Learn more about Unit Conversion here:

https://brainly.com/question/28600662

#SPJ4

Is this right?

Pic below! :D

Answers

Answer:

I Don't Think So

But ask your parents or your older brother or sisters

That looks right about those questions you were asking me the last part where you got 1.50 is a little confusing could you explain maybe how you got that but the right answer is there

Determine whether these two ratios
form a proportion:
8/10 and 24/30

Answers

Hi there Moon,

The proportion you’re looking for would be 2/5, it is the smallest possible fraction

ab+4a-3b-12 = (b+4)(_____)

Answers

ab+4a-3b-12 = (b+4)(a-3)

3x−7= Can you Guys help

Answers

Answer:

not sure

Step-by-step explanation:

Answer:

x= 7

3

Step-by-step explanation:

find x by making the subject of formula

3x=7x = 7 3

What’s the remainder of 3,231 / 7

Answers

Select all equations that could be used to solve for the side indicated by the?

Question 1 of 10
If f(x) = 4x - 12, what is f(2)?
A. -20
ОО O
B. 8
C. -4
O
D. 4

Answers

Answer:

C -4

Step-by-step explanation:

f(2)= 4(2) - 12

f(2) = -4

a fair coin is flipped 10 times. what is the probability of getting the same number of heads and tails

Answers

If you flip a coin one time, the probability to get a Head is

p = 1/2

The probability of not getting a head in a single toss is :

q = 1 - 1/2 = 1/2

Thus there is only one unique situation to get the same number of heads and tails : in 10 toss you need to get exactly five heads, it will means that the rest is the tails.

Now using Binomial theorem of probability, the probability of getting exactly x = 5 heads in a total of n = 10 tosses is :

P(X = 5) = [tex]\frac{10!}{5!*5!} *(\frac{1}{2})^{5} *(\frac{1}{2})^{5}[/tex]≈ 0.246

So the probability of that is 24,6 %

Good Luck

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