Answer:
x = 6
y = 7
Step-by-step explanation:
Here, (10x - 8y = 4) and (- 5x + 3y = - 9) are two given equation
Now, Name the equation
10x - 8y = 4
take 2 as common we get
2(5x - 4y = 2)
5x - 4y = 2 ...(1)
- 5x + 3y = - 9 ...(2)
Now, Subtract (1) from (2)
5x - 4y = 2
- 5x + 3y = - 9
————————
- y = - 7
y = 7
Now, Put the value of y in equation (1) we get
5x - 4y = 2
5x - 4(7) = 2
5x - 28 = 2
5x = 28 + 2
5x = 30
x = 30÷5
x = 6
Thus, The value of x is 6 and y is 7
FOR VERIFICATION ONLY:
5x - 4y = 2
5(6) - 4(7) = 2
30 - 28 = 2
2 = 2
- 5x + 3y = - 9
- 5(6) + 3(7) = - 9
- 30 + 21 = - 9
- 9 = - 9
Hence, L.H.S = R.H.S
-TheUnknownScientist
!!HELP!! Which of the following pairs of numbers is matched with its correct greatest common factor? Select two that apply.
The greatest common factor of 62 and 74 is 6.
The greatest common factor of 45 and 70 is 5.
The greatest common factor of 38 and 39 is 3.
The greatest common factor of 60 and 84 is 12.
Answer:
D
Step-by-step explanation:
Answer:
The greatest common factor of 60 and 84 is 12
Step-by-step explanation:
60=2×2×3×584= 2×2×3×7so above explanation the greatest common factor is 12
From Monday - Tuesday, Adam earns $122 dollars. If he continues to earn the same amount for the rest of the week, how much will he have at the end?
Answer:
$437
Step-by-step explanation:
There are 7 days in a week.
Let's stop at the last even number, the 6th day.
Tuesday is four days away from Sunday, so multiply 122 by 3.
[tex]\mathrm{122}[/tex] × [tex]3[/tex] = [tex]366[/tex]
Finally, we are at the 7th day. There is no 8th day in a week, so divide 122 by 2.
[tex]122[/tex] ÷ [tex]2[/tex] [tex]=61[/tex]
Now, let's add 61 to 366. We get $437, and that is our answer.
Hope this helps!
Which equation is linear?
A. xy = 6
B. 3x – 2y = 5
C. y = x² – 3x + 1
D. Y2 + 1 = x
Answer:
B
Step-by-step explanation:
3x - 2y = 5
In linear equation each terms degree should be 1.The above is Linear equation with two variables.
How many groups of 5 are in the product of 523 and 45
Choose a value that breaks this gem into 5 equal pieces.
25%
50%
10%
20%
200
Write 74 in expanded form. Then check all that apply.
Answer:
7x7x7x7
Step-by-step explanation:
The exponent is 4. The exponent tells you to multiply 7 together 4 times
Answer:
above
Step-by-step explanation:
2/3 times 8
Please answer quick
Answer:
16/3 or 5 1/3
Step-by-step explanation:
Answer:
2/3x8= 2/3x1/8= 6/8 if u simplifie it, it would be 3/4.
=3/4
A triangle is formed with side lengths of 5 inches, 12 inches, and 15 inches. Is the triangle a right triangle?
Answer:
the triangle is not a right angle
Step-by-step explanation:
5²+12²=169
15²=225
The given triangle is not right angle triangle, because the given information of the triangle does not hold the Pythagoras theorem.
What are Pythagorean triplets?In a right-angled triangle, its side, such as hypotenuse, perpendicular and base is Pythagorean triplets.
Here,
A triangle is formed with side lengths of 5 inches, 12 inches, and 15 inches.
Verifying whether it is right angle or not,
Hypotenuse = 15
perpendicular = 12
Base = 5
Now,
Pythagoras' theorem is given as,
h² = p² + b²
15² = 12² + 5²
225 ≠ 169
Thus, the given triangle is not right angle triangle, because the given information of the triangle does not hold the Pythagoras theorem.
Learn more about Pythagorean triplets here:
brainly.com/question/22160915
#SPJ2
Which three-dimensional figure has half the number of vertices as the rectangular prism?
hexagonal prism
rectangular pyramid
triangular prism
triangular pyramid
Answer:Triangular pyramid (tetrahedron) has 4 vertices
Step-by-step explanation:
Answer:
its d i just got 100%Step-by-step explanation:
In physical education class, Mai takes 10 free throws and 10 jump shots. She earns 1 point for each free throw she makes and 2 points for each jump shot she makes. The greatest number of points that she can earn is 30.
Write an inequality to describe the constraints. Specify what each variable represents.
Answer:
30
Step-by-step explanation:
10 x 1 (for the free throws)= 10
10 x 2 (for the jump shots)= 20
20+10=30
The larger the two numbers is one more than four times the small number. if the sum of the numbers is 106,find the two numbers
Answer:
Smaller no. = 21
Larger no. = 85
Step-by-step explanation:
Smaller no. = y
Larger no. = 4y + 1
y + (4y + 1) = 106
y + 4y + 1 = 106
5y + 1 = 106
5y = 106 - 1
5y = 105
y = 105/5
y = 21
Smaller no. = y = 21
Larger no. = 4y + 1 = 4×21 + 1 = 84 + 1 = 85
Solve for X to the nearest tenth
Answer:
Step-by-step explanation:
[tex]\frac{x}{14}[/tex] = cos32°
x = 14cos32° ≈ 11.9
a car travels from point s at (-5,7) to point t at (-5,-1). if each unit represents 20 miles, how long will it take the car to travel this distance, traveling at 40 miles per hour?
Answer:
The value is [tex]t = 4 \ hours[/tex]
Step-by-step explanation:
From the question we are told that
The initial position of the car is [tex]x_i , y_i = (-5,7)[/tex]
The final position of the car is [tex]x_f , y_f = (-5,-1)[/tex]
The speed of the car is [tex]v = 40 \ miles / hour[/tex]
Generally the distance covered by the car along the x-axis is
[tex]x = -5 - [- 5][/tex]
=> [tex]x = 0[/tex]
Generally the distance covered along the y-axis is
[tex]y = y_i - y_f[/tex]
=>[tex]y = y_i - [-1][/tex]
=> [tex]y = 8[/tex]
Generally the resultant distance covered is
[tex]R = \sqrt{x^2 + y^2}[/tex]
=> [tex]R = \sqrt{0^2 + 8^2}[/tex]
=> [tex]R = 8[/tex]
From the question we are told that 1 unit of the distance covered is 20 miles so
8 units is
[tex]r = 8 *20[/tex]
=> [tex]r =160 \ miles[/tex]
Generally the time taken is mathematically represented as
[tex]t = \frac{r}{v}[/tex]
=> [tex]t = \frac{160}{ 40}[/tex]
=> [tex]t = 4 \ hours[/tex]
I give brainiest Martin decided to buy 3 bags of grapes weighing 4 1 5 pounds each. How much did all 3 bags of grapes weigh? 1 and one-fifth 7 and one-fifth 12 and one-fifth 12 and three-fifths
Answer:
12 3/5
Step-by-step explanation:
Answer:
12 3/5 can i have brainlist??
(ILL GIVE BRAINLIEST!!)
What is friction and when does it occur?
Answer:
Friction is a force that opposes motion between any surfaces that are touching. Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. ... Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy
Answer:
It is what happens when 2 things rub 2gether. It occurs when 2 things rub 2gether
Step-by-step explanation:
Brainliest now pls
g(x) = x2 + 5; 9(-6) how to evaluate the function for the given value
Answer:
9×−6
Thats the answer put that Promise can I get brainliest just click on my profile then go back and youĺl see a crown and click it on my name
Step-by-step explanation:
If x6 as 3:9, then x is equal to?
Answer:
2,33
Step-by-step explanation:
because if you multiply 3 + 9 you,ve got 27 besides 6
A triangle has dimensions 3, 4, and 5. A similar triangle is drawn with a scale
factor of 2. What are the dimensions of the new triangle?
A. 3, 4, and 5
B, 6, 8, and 10
C. 1.5, 2, and 2,5
D. 30, 40, and 50
For the cube shown, AD and HG are?
Parrallel lines
Oblique lines
Skew lines
Perpendicular lines
Answer:
Parallel lines
Step-by-step explanation:
What is the radius of a circle whose equation is (x + 5)2 + (y - 3)2 = 42?
O 2 units
Ο Ο Ο
4 units
8 units
16 units
Answer:
The radius of the circle is:
[tex]r=4[/tex] unitsStep-by-step explanation:
Given the equation
[tex]\left(x\:+\:5\right)^2\:+\:\left(y\:-\:3\right)^2=\:42[/tex]
As we know that
[tex]\left(x\:-\:a\right)^2\:+\:\left(y\:-\:b\right)^2=\:r^2\:[/tex]
is the equation of the circle with a radius 'r', centered at (a, b)
[tex]\mathrm{Rewrite}\:\left(x+5\right)^2+\left(y-3\right)^2=4^2\:\mathrm{in\:the\:form\:of\:the\:standard\:circle\:equation}[/tex]
so, the circle properties are:
[tex]\left(x-\left(-5\right)\right)^2+\left(y-3\right)^2=4^2[/tex]
Therefore, the radius of the circle is:
[tex]r=4[/tex] units
Does somebody know the answer to this question I’m lost
Answer:
81b + 4 - 14/3b
Step-by-step explanation:
divide by 3b, u can leave the fraction in there
Kaley and Tom both work at Publix as cashiers for $7.68 per hour. This week Kaley worked 5 more hours than Tom in overtime. Choose all the expressions that represents the weeks' wages for Kaley if h represents the number of hours Tom worked.
Answer:
X=5+h
Step-by-step explanation:
2 ÷ 1/2 what is the answer
Answer:
2 ÷ 1/2 is 4
Step-by-step explanation:
There are 86 calories in 100 g of banana
There are 89 calories in 100 g of yogurt
Amanda has 70 g of banana and 140 g of yogurt for breakfast
Work out the total number of calories in this breakfast
Which model represents 1/3
create a model or equation that will represent to the amount of relief each family will receive bearing in mind that the number of families will vary.
Missing Information
Suppose the officials conducted a survey for 4 days to determine the actual number of families residing in the barangay and the secretary constructed a tableto keep track of the data.
Day 0:
Number of families: 850
Amount of relief each family will receive: 520
Answer:
f(x) = 442000/x
Step-by-step explanation:
Given
The data in the above table
Required
Determine a model or equation
First, we need to determine the amount of relief for all families.
Using data in day 0.
Total Amount = 850 * 520
Total Amount = 442000
Next, we determine the function of equation.
Let the number of families he represented by x
The function or equation is gotten by dividing the total amount by the number of families.
Hence:
f(x) = Total Amount ÷ x
Substitute values for total amount and x
f(x) = 442000/x
Hence, the model that satisfies the given information is:
f(x) = 442000/x
Wirth 20 points (02.02)A shape is shown on the graph:
Which of the following is a reflection of the shape?
A coordinate plane is shown. A triangle has vertices negative 2 comma negative 1, negative 3 comma negative 3, and negative 1 comma negative 3.
A coordinate plane is shown. A triangle has vertices 1 comma 1, 0 comma negative 1, and 2 comma negative 1.
A coordinate plane is shown. A triangle has vertices negative 3 comma negative 1, negative 2 comma negative 3, and negative 1 comma negative 1.
A coordinate plane is shown. A triangle has vertices negative 3 comma negative 1, negative 3 comma negative 3, and negative 1 comma negative 2.
Answer:
b
Step-by-step explanation:
The reflection of the dots marked is on the opposite side at the same numbers and lines but with a different sign in front of the number.
Answer: b
Step-by-step explanation:
The reflection of the dots marked is on the opposite side at the same numbers and lines but with a different sign in front of the number.
Evaluate.
8−2⋅3+7
PLZ PLZ HURRY
Answer:
9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition SubtractionStep-by-step explanation:
Step 1: Define expression
8 - 2 · 3 + 7
Step 2: Evaluate
Multiply: 8 - 6 + 7Subtract: 2 + 7Add: 9IIf two ounces of cheese has 200 calories, how many calories are in 5 ounces of cheese?
Answer:
500 calories
Step-by-step explanation:
200 / 2 = 100
1 ounce = 100 calories
5 * 100 = calories.
OR
200 * 5 = 1000
1000 / 2 = 500
Therefore, 5 ounces of cheese = 500 calories.
Linda borrows $124 from her brother. He tells her to forget paying back $65 of the loan. How much does Linda owe her brother?
Answer:
$59
Step-by-step explanation:
124 - 65 = 59