Answer:
b= -1/2 a + 15
Step-by-step explanation:
isolate 2B, Take A to the other side and it will become negative. divide all by 2 because of 2B so we can get rid of 2. and that's all
Fairly easy question
What is the solution to this system of equations?
x − 2y = 15
2x + 4y = -18
A.
x = 1, y = -6
B.
x = 1, y = -7
C.
x = 3, y = -6
D.
x = 3, y = -7
Answer:
C. x=3 and y=−6
Step-by-step explanation:
Step: Solvex−2y=15for x:
x−2y=15
x−2y+2y=15+2y(Add 2y to both sides)
x=2y+15
Step: Substitute2y+15forxin2x+4y=−18:
2x+4y=−18
2(2y+15)+4y=−18
8y+30=−18(Simplify both sides of the equation)
8y+30+−30=−18+−30(Add -30 to both sides)
8y=−48
8y8=−488(Divide both sides by 8)
y=−6
Step: Substitute−6foryinx=2y+15:
x=2y+15
x=(2)(−6)+15
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=−6
look at the picture.
Answer:
66
Step-by-step explanation:
66 square root is 8.12403840464
Answer:
i got 66
Step-by-step explanation:
REEEEEEEEEEEEEEEEE
Solve for r.
19.72 = 4r
Answer: R = 4.93
Step-by-step explanation:
19.72/4 = 4.93
The Hu Family goes out for lunch, and the price of the meal is $53. The sales tax on the meal is 7%, and the family also leaves a 15% tip on the pre-tax amount. What is the total cost of the meal?
PLEASE HELP I WILL MARK BRAINLIEST
Answer:
i think its 64.66
Step-by-step explanation:
07x53=3.71
0.15x53=7.95+53=60.95+3.71=64.66
Answer:
$64.66
Step-by-step explanation:
find the amount of tax 53 x .07 = 3.71
find the amount of the tip 53 x .15 = 7.95
53 + 3.71 + 7.95 = 64.66
Select the correct answer. Given: ∆ABC Prove: A midsegment of ∆ABC is parallel to a side of ∆ABC. Statement Reason 1. Define the vertices of ∆ABC to have unique points A(x1, y1), B(x2, y2), and C(x3, y3). given 2. Let D be the midpoint of and E be the midpoint of . defining midpoints 3. definition of midpoints 4. slope of slope of definition of slope 5. slope of = slope of Transitive Property of Equality 6. definition of parallel lines 7. Let F be the midpoint of . defining a midpoint 8. definition of midpoint 9. slope of slope of definition of slope 10. 11. definition of parallel lines 12. Similarly, is parallel to . steps similar to steps 1−11 What is the missing step in this proof? A. Statement: slope of = slope of Reason: definition of slope B. Statement: slope of = slope of Reason: Transitive Property of Equality C. Statement: DF = BC Reason: Corresponding sides of congruent triangles are congruent. D. Statement: ∆ADF ≅ ∆ABC Reason: ASA
Answer:
B) Statement: slope of df = slope of bc
Reason: Transitive Property of Equality
Step-by-step explanation: i just took the test.
Answer:
C. Transitive Property of Equality
Step-by-step explanation:
Which of the following lines is perpendicular to the equation given below?
y = -2x + 8
2x + y = 4
2x + y = 4
x - 2y = 6
x - 2y = 6
2x - y = 1
2x - y = 1
x + 2y = 8
the anser is
x- 2 y =6
x- 2 y =6
thats iit
Two adults and 9 students cost $50 to attend
the game. If one adult and 8 students cost
$39 how much do adult and student tickets
cost?
Answer:
The cost of tickets for a play is $3.00 for adults and $2.00 for children. 350 tickets were sold and $950 was collected. How many tickets of each type were sold?
Let x = number of $3 tickets
Let y = number of $2 tickets
Total = quantity × value
Step-by-step explanation:
x + y = 350 (equation 1)
3x + 2y = 950 (equation 2)
Use Substitution Method
Isolate variable x in equation 1
x = 350 – y (equation 3)
Substitute equation 3 into equation 2
3(350 – y) + 2y = 950
1050 – 3y + 2y = 950
3y – 2y = 1050 – 950
y = 100
Substitute y = 100 into equation 1
x + 100 = 350
x = 250
Answer: 250 $3 tickets and 100 $2 tickets were sold.
Which number goes in the
space (?) to make the two
fractions equivalent
3/8 = 15/?
Answer:
40 mark Brainliest please
Step-by-step explanation:
15/40
Let the missing number be x .
Then :-
[tex] \frac{3}{8} = \frac{15}{x} [/tex]
[tex] 3 \times x = 8 \times 15[/tex]
[tex]3x = 120[/tex]
[tex]x = \frac{120}{3} [/tex]
[tex]x = 40[/tex]
The missing number is 40 .
Let us check it by doing cross multiplication :-
[tex]3 \times 40 = 15 \times 8[/tex]
[tex]120 = 120[/tex]
Hence proved the missing number is 40 .
[tex]therefore \: , \frac{3}{8} = \frac{15}{40} [/tex]
Why is the value of a substance’s specific gravity always the same numerically as its density?
HELP ME PLEASE!!!
Because it is always the substance’s density divided by the density of water which is 1 g/cm 3
Because it is always the substance’s density multiplied by the density of water which is 1 g/cm 3
Because specific gravity is the inverse of density
Because these represent the same measurement
greetings i may be late but yes answer A is correct
Option A is correct, Because it is always the substance’s density divided by the density of water which is 1 g/cm 3
What is Density?The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.
Given that the value of a substance’s specific gravity always the same numerically as its density.
Because density has units and specific gravity is dimensionless, the two are never the same, but they are numerically equal when three conditions are met
Density is measured in grammes per cubic centimetre, grammes per millilitre, or kilogrammes per litre
Density and Specific Gravity are measured at the same temperature
Hence, option A is correct, Because it is always the substance’s density divided by the density of water which is 1 g/cm 3
To learn more on Density click:
https://brainly.com/question/29775886
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What unit of metric of length is used in the machine manufacturing industry? for brainliest
Answer: In the metric system, it is the millimeter.
Step-by-step explanation:
1. How much interest is earned on $4,965 at 7% compounded monthly for 18 years?
The measure of angle MBT ?
Answer:
Oooo I’m doing a question just like that one on my hw
Step-by-step explanation:
Question 13
Find the value of x.
Which equation represents an exponential function with an initial value of 500?
f(x) = 100(5)
f(x) = 100(x)5
f(x) = 500(2)
f(x) = 500(x)2
ОО
The answer fam is..... f(x) = 500(2)
Answer:
C.F(x) = 500(2)
Step-by-step explanation:
-1 2/7 + 4 i really need to answer this.
Answer:
5 29/100
Step-by-step explanation:
google helps
Answer:
n = 5/4
Step-by-step explanation:
Use algebra titles to solve x + 7 = 9.
Answer:
2
Step-by-step explanation:
9-7=2
Answer:
x = 2
Step-by-step explanation:
Subtract 7 from both sides.
[tex]x+7=9\\\\x+7-7=9-7\\\\\boxed{x=2}[/tex]
Hope this helps.
What is the approximate percent increase when the population of a town increases from 12,089 to 15,025? Round the population amounts to the nearest thousand to find an estimate of the percent increase.
The percent increase is approximately 10%.
The percent increase is approximately 25%.
The percent increase is approximately 33%.
The percent increase is approximately 80%.
Answer:
The percent increase is approximately 10%
Step-by-step explanation:
so in other words a is correct!
Answer:
B
Step-by-step explanation:
Took the test on Edg. Gotten it correct
What is the quotient of 3/4 ÷ 1/5
Answer:
3 3/4
Step-by-step explanation:
Answer:
Three and three fourths or 15/4
Step-by-step explanation:
(4+5)(4-51) =
please help i don’t feel like doing math rn
Answer:
423
Step-by-step explanation:
Answer:
-423
Step-by-step explanation:
Hope This Helps!
Plz Mark Brainliest!
F(x)= 2x^2-3x-9 G(x)= 4x^2-9 find (f/g) (x)
This is about division of polynomials.
(f/g)(x) = (x + 1)/(2x + 3)
(f/g) (x) simply means we divide f(x) by g(x) We are given;f(x) = 2x² - 3x - 9
g(x) = 4x² - 9
To divide this, let's simplify each function to its factors using the sun-product pattern.f(x) = 2x² - 3x + 6x - 9
Let's collect like terms;
f(x) = x(2x - 3) + 1(2x - 3)
Rewriting in factored form gives;
f(x) = (x + 1)(2x - 3)
Similarly;g(x) = 4x² - 9
g(x) = 4x² + 6x - 6x - 9
g(x) = 2x(2x + 3) - 3(2x + 3)
Rewriting in factored form gives;
g(x) = (2x + 3)(2x - 3)
Thus;
(f/g)(x) = ((x + 1)(2x - 3))/((2x + 3)(2x - 3))
(f/g)(x) = (x + 1)/(2x + 3)
Read more at;
brainly.in/question/37643694
PLEASE HURRY A triangle and two of its side lengths are shown in the diagram. Which measurement is closest to the value of x in feet? The diagram show a triangle that has 3.7ft on the left side, 14.3 ft on the right/slanted side, and x at the bottom PLEASE HELP ME
Answer:
[tex] x = 13.8 ft [/tex]
Step-by-step explanation:
Since it's a right triangle, apply pythagorean theorem.
The formula is given as a² + b² = c²
Where,
a = 3.7 ft
c = 14.3 ft
b = x
Plug in the values into the formula:
[tex] 3.7^2 + x^2 = 14.3^2 [/tex]
[tex] 13.69 + x^2 = 204.49 [/tex]
Subtract 13.68 from both sides
[tex] x^2 = 204.49 - 13.69 [/tex]
[tex] x^2 = 190.8 [/tex]
[tex] \sqrt{x^2} = \sqrt{190.8} [/tex]
[tex] x = 13.8 [/tex] (nearest tenth)
find the perimeter of an equilateral triangle with side 8
Answer:
perimeter is equal to 24.
please help important!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The initial fee of $12 would be the y-intercept because no matter how many boxes of cards you buy, the fee stays the same. The slope would be $3.99 because that fee is charged per box. The 100 cards per box is extra information and not needed in the equation. D is the only logical choice.
Are the two triangles congruent? Why or why not?
Answer:I think yes, not sure tho
Step-by-step explanation:
Answer:
no because they arent the same size
Step-by-step explanation:
A garden is 6 yards 24 inches wide and 5 yards long.
The ratio in simplest form is ??
PLEASE HELP!
Elsa Is taking physical fitness tests in her strength training class. Each day, her results are compared to her resutts from previous days. The first day she completes a test is considered the baseline, and Is represented by 0. For instance, on the first day she did the flexibility test, her result was calculated as 0. On the second day, in comparison to her first day's result, she was able to reach 1 1/16 inches less than the first day, which was recorded as -1 1/16. Then, on the third day, Elsa recorded a result of -5/8.
A. On which day did Elsa reach farther: the second or third day?
B. By how much?
Answer:
A) The second day
B) 9/16 inches
A) Elsa reached farther on the second day because -1/16 > -5/8
B) To calculate this we must first put both fractions above the same denominator. We can then subtract the smaller one from the bigger one:
-1/16 - (-10/16) = 9/16
Elsa reached 9/16 inches farther on the second day then she did on the first.
Hope this helps and have a great day!
Also stay safe! :))))
what is 25 2/3 - 15 1/3 =
Answer:
10 1/3
Step-by-step explanation:
Convert mixed numbers into improper fractions (whole number × denominator + numerator)
25 2/3 and 15 1/3
25 × 3 + 2 = 75 + 2 = 77
Put the number over the same denominator
77/3
15 × 3 + 1 = 45 + 1 = 46
Put the number over the same denominator
46/3
77/3 - 46/3
They have common denominators so we can simply subtract the numerator values
77 - 46/3
31/3
To convert it back to a whole number, find how many times 3 fits into 31 evenly
It fits 10 times evenly with 1 remainding which looks like:
10 1/3
The distance from Salvador's job to
his house is 3 times greater than the distance
from his house to school. If his house is between
his job and school and the distance from his job
to school is 6 miles, how far is it from Salvador's
house to school?
Answer:
54
Step-by-step explanation:
5 1/10 divided by 1 1/5
Answer:
4.25
Step-by-step explanation:
Part 6
If you drew a line segment from the point when Kiley reached the walting area to the point when the plane took off, at which
point would the line segment end?
Answer:14,26.
Step-by-step explanation:
That's good hope this helps
