Mathematics High School

Solve the simultaneous equations.
Please help.

Solve The Simultaneous Equations.Please Help.

Answers

Answer 1

Answer:

the answer is x= 5 and y = 1.5

Solve The Simultaneous Equations.Please Help.
Answer 2
Answer :Value of x is 5 Value of y is 1.5Explaination :

Here we have been given with two equations and we will solve them by elimination by substitution method inorder to get the value of x and y.

5x - 4y = 19 (Equation No 1)x + 2y = 8 (Equation No 2)

★ From Equation No 2 :-

>> x + 2y = 8

>> x = 8 - 2y

★ In Equation No 1 :-

Substituting here the value of x which we got above as (8 - 2y).

>> 5x - 4y = 19

>> 5 (8 - 2y) - 4y = 19

>> 40 - 10y - 4y = 19

>> 40 - 14y = 19

>> -14y = 19 - 40

>> -14y = -21

>> 14y = 21

>> y = 21 / 14

>> y = 1.5

★ Finding out value of x :-

>> x = 8 - 2y

>> x = 8 - 2 (1.5)

>> x = 8 - 2 × 1.5

>> x = 8 - 3

>> x = 5

Related Questions

if the area of the circle is 225pi what is the diameter

Answers

Answer:

30cm

Step-by-step explanation:

Area is πr²

So,

πr²=225π

r=√225

r=15cm

Diameter=2r=30

Maths is easy peasy

Emma made 10% of her free throws over the season. If she shot 180 free throws, how many did she make?

Answers

Answer:

180*0.1=18

Step-by-step explanation:

Marcos buys 20 folders and 10 binders for a total of $100. Alicia buys 10 folders and 20 binders for $110. What is the price of each folder and each binder?​

Answers

Answer:

folder is $3 binder is $4

Step-by-step explanation:

Let folder be x and binders be y

Marcos

20x+10y= 100----------1

Alicia

10x+20y= 110-------------2

solve 1 and 2

20x+10y= 100 X 1

10x+20y= 110 X 2

20x+10y= 100

-20x+40y= 220

        -30y= -120

y= 120/30

y= 4

put y= 4 in 1

20x+10y= 100

20x+10(4)= 100

20x+40=100

20x=100-40

20x=60

x= 60/20

x=3

help ASAP thanks........

Answers

Answer: Yes, they are similar- and the Scale Factor is 2.5

Step-by-step explanation: To find the scale factor, simply divide the larger number on the bigger shape by its counterpart in the smaller image, so for example: 60 divided by 24 is 2.5, and there is your scale factor. You can further test this by multiplying 4 x 2.5 which gives us 10, the other value on the larger shape.

Jackson ran 1 1/2 miles in 1/2 of an hour. What is Jackson's unit rate in miles per hour?

Answers

Answer 3 hours

Step-by-step explanation:

sorry but can you guys help me AGAIN ?

Answers

Answer:

D.

Step-by-step explanation:

Company A charges $125 annual fee plus $5 per hour car share fee.

Company B charges $80 plus $10 per hour. What is the minimum number of

hours that a car share needs to be used per year to make company A a better

deal?

Answers

Answer:

Greater than 9 hours.

Step-by-step explanation:

Company A annual fees = $125

Company A share fee = $5 per hour

Let number of hour be x, then

Company A total fee = $125 + 5x

Similarly, Company B annual fees = $80

Company B share fee = $10 per hour

Let number of hour be x, then

Company B total fee = $80 + 10x

If company A is a better deal, then

125 + 5x < 80 + 10x

= 125 - 80 < 10x - 5x

= 45 < 5x

= x > 45÷ 5

= x > 9

So, number of hours must be greater than 9 hours.

Answer: 10

Step-by-step explanation: took the quiz

What is the solution to the system of equations? 4x + 2y = 1
5x = y - 18 ​

Answers

Answer:

Step-by-step explanation:

X = -5/2

y = 11/2

Y= -2x + 1/2

Y= 5x + 18

The pictogram shows information about the numbers of phones sold in a shop over a 5-month period.

Answers

Answer:

a) 5(6) = 30

b) 3.5(6) = 21

c) 153

Step-by-step explanation:

c) 30 + 39 + 21 + 36 + 27 = 153

What happens when a figure is dilated .

Answers

Answer:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. A dilation that creates a smaller image is called a reduction. A dilation stretches or shrinks the original figure.

Ms. Ingham took 21 pens from a drawer to distribute to the class. If 77 pens
remain in the drawer, how many pens were originally in the drawer?

Answers

Answer:

98 pens

Step-by-step explanation:

If Ms. Ingham took 21 pens and 77 pens remain, add the numbers together to find the total.

21 + 77 = 98

Answer:

98 pens

Step-by-step explanation:

Add: 77+21=98

(Picture included)

Sorry about my handwriting!

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Write a verbal sentence to represent each equation.
8+3x=5

Answers

Answer:

eight plus three times a number

Step-by-step explanation:

I think I'm wrong I don't know I'm not really the master at this (but feel free to do tell me if I'm wrong)

Answer:

eight plus there = to a number

Step-by-step explanation:

please give me brainliest

2x-7=-3x+18


solve for x

Answers

Answer:

x=5

Step-by-step explanation:

2x−7=−3x+18

Step 1: Add 3x to both sides.

2x−7+3x=−3x+18+3x

5x−7=18

Step 2: Add 7 to both sides.

5x−7+7=18+7

5x=25

Step 3: Divide both sides by 5.

5x

5

=

25

5

x=5

Answer:

x = 5

Step-by-step explanation:

2x - 7 = -3x + 18

2x - 7 + 7 = -3x  + 18 + 7

2x = -3x + 25

2x + 3x = -3x + 25 + 3x

5x = 25

x = 5

50 POINTS HELP PLS ASAP

Answers

Answer:

G

Step-by-step explanation:

Diego took a survey to find out how many students plan to go to a school band concert. There are more than 1,000 students in his school. He selected a sample by asking the first 50 students he met at band practice.

Answers

Answer: N/A

Step-by-step explanation: We need more info to solve this problem

Answer:

The one above is wrong

The actual answers are A and D

Find the measure of x.
5
2.x - 3

Answers

X would equal 4
This is because you will do 5=2x-3
Then add 3 to 5
So 8=2x
Then divide 2 from 8
So 8/2=4
4=x
X=4 because 2x-3=5. Next add 3 on both sides so it become 2x=8. Then divide 2 ton both sides. So x=4

I NEED THIS ASAP!!! WHOEVER ANSWERS FIRST WILL MARK BRAINLEST

Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation:
a) y = 3.5x + 4; A(...; 5), B(10; ...)


b)7x − 5y = 12; A(...; 9), B(4; ...)

c)y = − 37 x +3; A(...; 6), B(9; ...)

d)y = 0.3x + 1; A(...; 9), B(5; ...)



please answer asap
ty :P

Answers

Answer:

LOOK

Step-by-step explanation:

Put the points into the equation and solve for the missing value.

Need help due tonight!

Answers

Answer:

y = 4.375x + 2.5

Step-by-step explanation:

The equation of the line is expressed as y = mx+c

m is the slope

c is the intercept

Using the coordinate points (0, 2.5), (4, 20)

Slope m = 20-2.5/4-0

m = 17.5/4

m = 4.375

Get the intercept

Substitute (0, 2.5) and m = 4.375 into y - mx+c

2.5 = 4.375(0) + c

2.5 = c

Get the equation required

y = 4.375x + 2.5

la pyramide du Louvre cest une pyramide a base carrée de 35,4m de large et de 21,6m de haut calculer l'inclinaison dune face par rapport a l'horizontale (arrondire au degrés) ​

Answers

Answer:

c'est une pyramide régulière à base carrée de35.4 m de large et de 21.6 m de haut. calculer l'inclinaison d'une face par rapport à l'horizontale. ... dans le triangle rectangle SHA: tg SAH = 21,6/17,7 donc l'angle SAH = 50,66° ...

Step-by-step explanation:


Which table represents a linear function?

Answers

Bottom right because it is the only one that doesn’t jump from number to number; It just stays at a constant slope of 1

A bakery offers a sale price of $2.85 for 6 muffins. What is the price per dozen?


The price per dozen muffins is $
.

Answers

5.70$
Have a good day
The answer is $5.70 this is because there is 12 eggs in a dozen so if its $2.85 for 6 you would do $2.85x2 to get $5.70

40 points need NOW Simplify the expression.

Answers

Answer:

[tex]7xy^{2} \sqrt[3]{2xy}[/tex]

Step-by-step explanation:

[tex]\sqrt[3]{686x^{4} y^{7}}[/tex]

[tex]686 = 343 * 2[/tex]

[tex]x^{4} = x^{3} * x[/tex]

[tex]y^{7} = y^{3} * y^{3} * y[/tex]

[tex]\sqrt[3]{343} =7[/tex]

[tex]\sqrt[3]{x^{3}} = x[/tex]

[tex]\sqrt[3]{y^{3}* y^{3}}[/tex] = [tex]y^{2}[/tex]

so you're left with 2, x, and y inside the cube root, and 7, x, and y^2 outside

[tex]7xy^{2} \sqrt[3]{2xy}[/tex]

(3x - 16)
(lly-32)
(6x + 7)

Answers

Answer:

ummm What is the quastion ?

Which is more, 7 quarts or 218 fluid ounces?

Answers

Answer:

I think 7 quarts is just trying to help ya out ;)

Step-by-step explanation:

Answer:

7 quarts

Step-by-step explanation:218 fluid ounces=6.8125 quarts

Thats why 7 quarts is grater

A side of the triangle below has been extended to form an exterior angle of 68º. Find
the value of x.

Answers

Answer:

112°

Step-by-step explanation:

180 - 68 = 92°
92 is the answer

Define the variables for the situation. Then enter an equation.
Jana's age plus 8 equals her sister's age.
j = Jana's age B
s = sister's age e
Enter an equation:
+

Answers

Answer:

Definitions of the variables in the situation:

J = Jana's age

S = Sister's age

The Equation:

J + 8 = S

Step-by-step explanation:

Explanation:

In the equation we will use the variable J for Jana and S for Janna's sister. Since we know Jana's age plus 8 equals her sister's age, the equation will be J + 8 = S

in the following diagram find x​

Answers

Answer:

⚠︎ 65 IS YOUR ANSWER!

Step-by-step explanation:

180-50 = 130

130 / 2= 65

Answer:

x=65

Step-by-step explanation:

you can set up a equation

50 + x+x =180 = 50 + 2x =180

then minus the 50

2x= 130 and the divide by 2

x=65

kk my baby bro needs help it math 7th grade
0.4(3.21x+5.6)

Answers

Answer:

1.284x + 2.24 is the answer.

Step-by-step explanation:

Simply, all we have to do is distribute the 0.4 to the 3.21x and the 5.6.

(0.4 × 3.21x) + (0.4 × 5.6)

= 1.284x + 2.24

#teamtrees #WAP (Water And Plant)

Answer: = 1.284x + 2.24

explanation: This question is easily solved through the process of distribution.

(0.4 × 3.21x) + (0.4 × 5.6) = 1.284x + 2.24

Sorry for the late answer hope this helped!

6. Diana drew a circle on a coordinate grid and shaded the inside, as shown below.
CLEAR AL
w
Which list of ordered pairs represents points located in the shaded part of
Diana's circle?

Answers

it would be the first choice , with (9,3)

heyy i hope ur doing fine could u answer these thankss :)

Answers

D. horizontal translation 3 unites left.

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