Answer:
The two numbers are 5.73 and 2,27
Step-by-step explanation:
Let the two numbers be x and y
[tex]x + y = 8[/tex]
[tex]xy = 13[/tex]
Make x the subject in the first equation
[tex]x = 8 - y[/tex]
Substitute 8 - y for x in the second equation
[tex](8-y)*y = 13[/tex]
Open brackets
[tex]8y - y^2 = 13[/tex]
Equate to 0
[tex]y^2 - 8y + 13 = 0[/tex]
Solve using quadratic formula
[tex]y = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]
Where
[tex]a = 1[/tex] [tex]b = -8[/tex] [tex]c = 13[/tex]
So:
[tex]y = \frac{-(-8) \± \sqrt{(-8)^2 - 4*1*13}}{2*1}[/tex]
[tex]y = \frac{8 \± \sqrt{64 -52}}{2}[/tex]
[tex]y = \frac{8 \± \sqrt{12}}{2}[/tex]
[tex]y = \frac{8 \± 3.46}{2}[/tex]
Split
[tex]y = \frac{8 + 3.46}{2}[/tex] or [tex]y = \frac{8 - 3.46}{2}[/tex]
[tex]y = \frac{11.46}{2}[/tex] or [tex]y = \frac{4.54}{2}[/tex]
[tex]y = 5.73[/tex] or [tex]y = 2.27[/tex]
Recall that
[tex]x = 8 - y[/tex]
When [tex]y = 5.73[/tex]
[tex]x = 8 - 5.73[/tex]
[tex]x = 2.27[/tex]
When [tex]y = 2.27[/tex]
[tex]x = 5.73[/tex]
Hence, the two numbers are 5.73 and 2,27
evaluate 5.6t for t = 0.7
Answer:
3.92
Step-by-step explanation:
.7*5.6=3.92
hope that helps!
Question 12. How much more will her shirt cost in Union City than in River 10 points
City? A $0.01 B $0.05 C $0.10 D $25.80 *
Step-by-step explanation:
we need the whole question
Answer:
Need more explanation
Step-by-step explanation:
Kevin bought 5 tickets to a concert for $115. How much will it cost for 8 tickets to the concert if all tickets have the same unit price? Use the table below to help determine the missing value:
Answer:
184$
Step-by-step explanation:
23$ per ticket
8 tickets = 184$
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Find the third side in simplest radical form:
Answer:
br515898 avatar
HEY PLS DON'T JOIN THE ZOOM CALL OF A PERSON WHO'S ID IS 825 338 1513 (I'M NOT SAYING THE PASSWORD) HE IS A CHILD PREDATOR AND A PERV. HE HAS LOTS OF ACCOUNTS ON BRAINLY BUT HIS ZOOM NAME IS MYSTERIOUS MEN.. HE ASKS FOR GIRLS TO SHOW THEIR BODIES AND -------- PLEASE REPORT HIM IF YOU SEE A QUESTION LIKE THAT. WE NEED TO TAKE HIM DOWN!!! PLS COPY AND PASTE THIS TO OTHER COMMENT SECTIONS!! thx
Step-by-step explanation:
also this not mine O-O
what does SOH,CAH,TOA mean?
Answer:
Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent
Can someone help me find x.
Answer:
Step-by-step explanation:
6x+9=63
6x=63-9
6x=54
x=54/6
x=9
I encourage you to figure out the justification yourself.
5. Jessica rode her bike 3 miles on Thursday and 4 miles on Friday. On Saturday, she rode twice as many miles as she rode on the first two days. How many miles did Jessica ride her bike on Saturday?
A. 7 miles
B.9 miles
C. 14 miles
D.6 miles
Answer:
C : 14 miles
Step-by-step explanation:
3 + 4 =7
7 × 2 = 14
Answer:
c. 14 miles
Step-by-step explanation:
you add the 3 miles plus the 4 miles and multiply it by 2
3*4= 7 *2
The ratio of two computers is 3:2.
1.If the first computer costs 55000/=,what is the price of the second computer?
2.If the price of 2nd computer is 2000/= more,what is the ratio of. the computers?
Need it for test......
Answer:
36666.66 units
Step-by-step explanation:
Let the cost of computer 1 is 3x and that of 2 is 2x.
Cost of first computer = 3x
55000 = 3x
x = 18333.33
Cost of second computer = 2x
= 2(18333.33)
= 36666.66
Henc, the cost of the second computer is 36666.66 units.
Help meeeeeee! If it’s correct you will get a something good!
Answer:
24/4=6
Step-by-step explanation:
In the model, there are 4 rows of 6 blocks. 24 total blocks divided by the 4 rows gives you six objects in each row.
HTH :)
ANSWER QUICK PLEASE!!!! BRAIN LIST AND POINTS
Find the measure of x
Q
s
15(x+1)
150
T
Ox=1
Ox=9
-Ox=10
Ox=11
Answer:
x = 9
Step-by-step explanation:
The two angles are alternate exterior and has same measurement
15(x+1) = 150 divide both sides by 15
x + 1 = 10 subtract 1 from both sides
x = 9
What is the equation of the line with a slope of 1/2 that passes through the point (-8, -2)?
Answer:
The answer is
[tex]y = \frac{1}{2} x + 2 \\ [/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 2 = \frac{1}{2} (x + 8) \\ y + 2 = \frac{1}{2} x + 4 \\ y = \frac{1}{2} x + 4 - 2[/tex]
We have the final answer as
[tex]y = \frac{1}{2} x + 2 \\ [/tex]
Hope this helps you
find the two partial products in the multiplication problem.
230x33
Plz help me and take your time on this i'm in no rush <3
Answer:
690 and 6,900
Step-by-step explanation:
230
x 33
______
690
+ 6,900
________
7590
PLEASE HELP ASAP!! AND PLEASE SHOW ALL WORK THANK YOU!! 10x + 5 + 3x +1 =
Answer:
13x + 6
Step-by-step explanation:
10x + 3x + 5 + 1
13x + 5 + 1
13x + 6
You just combine like terms
Answer:
The answer is 53
Step-by-step explanation:
= 10x*5+3x*1
= 50x+3x*1
= 50x+3x
= 53x
An architect's scale drawing of a new school is 8,4 inches
long. The scale used in the drawing is 2 inches = 8 feet,
What is the actual length, in feet, of the school?
Answer:
Step-by-step explanation:
2=8 feet sooo
8/4=2 2x2=4 4x8= 32 4x4=16 sooo 32, 16 feet :) hope dis helps
What is the equation in slope-intercept form for the line that passes through the points (−2, −1) and (1, 5)?
A. y = 2x − 3
B. y = 2x + 3
C. y = −2x − 3
D. y = −2x + 3
Answer:
y=2x+3
Step-by-step explanation:
we know the slope is 2
now we are going to find b
-1=2(-2)+b
-1=-4+b
-1+4=3
3=b
Which of the following sets of side lengths would form a triangle? Check all that apply.
10, 9, 13
6, 13, 8
10, 19, 9
12, 10, 8
6, 4, 15
Answer:
Step-by-step explanation:
a, b, c
a + b > c
a + c > b
b + c > a
1). Yes, would form.
2). Yes, would form.
3). No, would not form. 10 + 9 = 19
4). Yes, would form.
5). No, would not form. 6 + 4 < 15
Can someone help me please
A student wants to graph his earnings for each week during the next calendar year. He wants to see how his earnings change
from week to week as the year goes on. Which type of graph is the most appropriate?
line graph
O circle graph
box-and-whisker plot
Answer:
Step-by-step explanation:
Line graph
The line graph is the most appropriate.
What is graph?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way.
The relationships between two or more items are frequently represented by the points on a graph.
To monitor changes over both short and long time periods, line graphs are utilized. Line graphs perform better than bar graphs when there are smaller changes. Line graphs can be used to compare changes for multiple groups over the same time period.
Therefore, the line graph is the most appropriate.
To learn more about the line graph;
https://brainly.com/question/23680294
#SPJ5
|2| + |-13| =
BRAINLIST AND EXTRA POINTS
Answer:
15
Step-by-step explanation:
|2| + |-13| =
2+13
15
Answer:
I think I might be 15Step-by-step explanation:
I looked it up on google
there a 158 beats per minute in a certain taylor swift song. if the song is 3 minutes and 30 seconds long, how many total beats are there
Answer:
553 beats
Step-by-step explanation:
Which of these sets of measurements represents the lengths of the sides of a right triangle?
a. (10, 24, 26)
b. (5, 12, 24)
c. (12, 18, 30)
d. (1, 2, 9)
Answer: The answer is B, just had this answer today, teacher said it was correct.
Can someone please help me out
Answer:
1.5 lb/person
Step-by-step explanation:
All that is shown is a 12-lb turkey being used for 8 people.
Since you want the unit rate of pounds per person, divide the number of pounds by the number of people.
12 lb / 8 people = 1.5 lb/person
175+14.25x=200+11z solve the problem
Answer:
x = 7.69
Step-by-step explanation:
We need to solve the given problem. It is as follows :
175+14.25x=200+11x
Here, x is a variable. We can take on one side of an equation and constants to the other side such that,
14.25x-11x = 200-175
3.25x=25
x = 25/3.25
x = 7.69
Hence, the solution of the given equation is 7.69.
Coach DeCaro records the cross country runners' times compared to their personal best times.
Runner
Gregor
Hiroki
Isabelle
Juan
Karen
3K Times
Time compared to
personal best
+5.6
-11.6
+3.2
0
-5.2
Which runners ran slower than their personal best?
O Juan
O Gregor and Isabelle
Gregor, Isabelle, and Juan
O Hiroki and Karen
Answer:I think its C but Im not sure
Step-by-step explanation: SMILE MORE!!! :D
Answer: Option B
( ik it's late but i needed the points lol)
Step-by-step explanation:
I got it right on my unit test on edge2021
question is in png pls some1 help !
Answer:
Triangle x = 30. Pentagon x = 50
Step-by-step explanation:
For the triangle,
Find the angle which is beside x in the triangle,
let's name that angle y, so 55 + 55 + y = 180 ( we find 55 by subtracting both angles 125 from 180)
110 + y = 180
Y = 180 - 110
y = 70
Now that we have find Y, we can easily find x by subtracting 70 from 180 which would be, 70 + X = 180
x = 180 - 70
x = 30
For the pentagon,
Again find the angle which is beside x in the pentagon,
let's name that y again, 90 + 120( by subtracting 60 from 180) + 110( by subtracting 70 from 180) + 90 + y = 540
210 + 200 + y = 540
410 + y = 540
y = 540 - 410
y = 130
Now that we have find y, we can easily find x by subtracting 130 from 180 which would be, 130 + x = 180
x = 180 - 130
x = 50
Hope this helps!
There are 5 rows of chairs with c chair in each row. Choose the expression that shows the number of chairs in total
Answer:
5(c)
Step-by-step explanation:
The number of chairs are being multiplying by each row.
If you need more help here's info.
Long multiplication is a method of multiplying two numbers which are difficult to multiply easily.
For example, we can easily find the product of 55 × 20 by multiplying 55 by 2 and then adding a 0 at the rightmost place of the answer.
55 × 2 = 110 and 55 × 20 = 1100.
But, many a time finding the product is not this easy. At such times we use the long method of multiplication.
Steps to multiply using Long Multiplication
Multiplying 2-Digit by 2-Digit Numbers
Let us multiply 47 by 63 using the long multiplication method.
1. Write the two numbers one below the other as per the places of their digits. Write the bigger number on top and a multiplication sign on the left. Draw a line below the numbers.
Answer this question correctly
Answer:
x = 3 - 3/2y
y = 2 - 2/3x
Step-by-step explanation:
2x + 3y = 6
2x = 6 - 3y
x = 3 - 3/2y
2x + 3y = 6
3y = 6 - 2x
y = 2 - 2/3x
Answer:
Slope=−1.333/2.000=−0.667
x−intercept=3
y-intercept=2
Step-by-step explanation:
HOPE THIS HELPS!!
see the image bellow please help 30 points
Cody plays an online game that allows users to trade points earned from the game for pieces of gold that could be used as currency to trade among players. The function P(g)=−50g+14,590 represents the number of points, P, Cody has after purchasing g pieces of gold. What does the y-intercept of P(g) represent for this situation?
Answer:
The y intercept is 1450
Step-by-step explanation:
Given
[tex]P(g) = -50g + 14590[/tex]
Required
Determine the y intercept
To answer this question, we need to understand the general form of a linear equation.
This is:
[tex]f(x) = mx + b[/tex]
Where b represents the y intercept
By comparing [tex]f(x) = mx + b[/tex] to [tex]P(g) = -50g + 14590[/tex], we have that:
[tex]b = 14590[/tex]
This implies that the y intercept is 1450
Enter the desimal equivalent of 6
Plz hurry
Answer:
0.06*
Step-by-step explanation:
*Assuming you mean 6%
6 percent can be written as 6/100, or six hundredths.
In decimal form, six hundredths is .006.
HTH :)