I need the steps and answers please
Answer:
For problem 15 it's y=15/4-7x
For problem 13 it's x=31-5y/6
Step-by-step explanation:
Problem 15:
y(4-7x)=15
y=15/4-7x
Problem 13:
6x=31-5y
x=31-5y/6
Answer:
13) Ans;
[tex]6x + 5y = 31 \\ 6x = 31 - 5y \\ \\ x = \frac{31 - 5y}{6} \\ \\ x = \frac{31}{6} - \frac{5y}{6} [/tex]
15)Ans;
[tex]4y - 7xy = 15 \\ y(4 - 7x) = 15 \\ \\ y = \frac{15}{4 - 7x} [/tex]
I hope I helped you^_^
a) sin30°.tan60° = cos30°
Answer:
Taking LHS:sin 30⁰. tan60⁰
= 1/2 . √3
=√3/2
Now, Taking RHS:Cos 30⁰
=√3/2
LHS =RHS,
Hence proved.
Step-by-step explanation:
-y - 52 = 33
10 Points
Answer:
−
5
2
=
3
3
1
0
Step-by-step explanation:
:/
Answer:
y = - 85
Step-by-step explanation:
-y = 52 + 33 (52 flys over " = " and changes sign)
-y = 85
-y / - 1 = 85 / - 1 (getting rid of negative sign of y)
y = - 85
7 grade math please help
Answer:
Step-by-step explanation:
-3.4 is the lowest temperature.
Coldest temperature is -3.4 is recorded at 3:00 pm
The temperature closest to freezing point of water is -0.15
Answer:
Step-by-step explanation:
3:00pm is the coldest
12:00pm is the closest to freezing
Translate the following statement into an equation and solve for x
Answer:
104 = -13 x -8
Step-by-step explanation:
The reason you got it wrong is, I'm assuming, because of the way you formatted it. Try this and see if it works.
Select all the equations where n=6n=6n, equals, 6 is a solution.
Answer: a) 4 = 10 - n
b) 3 = [tex]\frac{n}{2}[/tex]
d) 8n = 48
Step-by-step explanation:
a) n = 10 - 4
= 6
b) n = 3 × 2
= 6
d) n = 48 ÷ 8
= 6
Algebra 1. Graph and question is shown in picture
What is the rate of change of y=-50+31
Hey there!
Guide:
• Negatives are on the LEFT side of the number line
• Positives are on the RIGHT side of the number line.
• Negatives are BELOW 0 (less than 0)
• Positives are ABOVE 0 (more than 0)
• You have to take the value of the LARGER number.
• If your LARGER number is a negative number then your result will be a negative.
• If your LARGER is a positive number then your result will be a positive
• Negative & Negative = Positive
• Negative & Positive = Negative
• Positive & Positive = Positive
• Positive & Negative = Negative
y = -50 + 31
• So, you start from -50 and go UP 31 spaces to the right because “31” is a positive number.. once when you have moved UP your 31 spaces you have reached your answer for this given equation
y = -50 + 31
y = -19
Therefore, your answer is: y = -19
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
please help I need this done like now.
Answer:
CM = 16
MD = 16
CD = 32
Step-by-step explanation:
To find the value of x
3x + 1 = 8x - 24 (we know that M is the mid point so both of the lines will be equal)
Transpose
1 + 24 = 8x - 3x
25 = 5x
x = 25/5
x = 5
CM = 3x + 1
= 3(5) + 1
= 15 +1
= 16
MD = 8x - 24
= 8(5) - 24
= 40 - 24
= 16
CD = CM + MD
= 16 + 16
= 32
find the size of unknown angles
Step-by-step explanation:
Hope it is helpful for you
thank you
Answer:
Step-by-step explanation:
2∠0PQ = 36
∠OPQ = 36/2 = 18°
Join OQ,
ΔOPQ is an isosceles triangle as OP = OQ = radius
∠OQP = ∠OPQ {Angles opposite to equal sides are equal}
∠OQP = 18°
∠ORQ = 36
ΔORQ is an isosceles triangle as OR = OQ = radius
∠OQR = ∠ORQ {Angles opposite to equal sides are equal}
∠OQR = 36°
∠PQR = ∠PQO + ∠OQR
= 18 + 36
∠PQR = 54°
∠POR = 2*∠PQR {Central angle theorem}
= 2 * 54
∠POR = 108°
∠PQR + ∠PSR = 180 {Opposite angles of cyclic quadrilateral}
54 + ∠ PSR = 180
∠PSR = 180 - 54
∠PSR = 126°
∠PSR + ∠RST = 180 {linear pair}
126 + ∠RST = 180
∠RST = 180 - 126
∠RST = 54°
0.09 (repeating) as a fraction
Answer:
[tex]\frac{9}{100}[/tex]
1/11.....................
Simplify to create an equivalent expression.
Answer:
A
Step-by-step explanation:
Given
- k - (- 8k + 7) ← distribute parenthesis by - 1
= - k + 8k - 7 ← collect like terms
= 7k - 7 → A
Answer:
7k + 7
Step-by-step explanation:
-k - (-8k + 7)
-k + 8k + 7
7k + 7
give brainliest please I need it to level up
Plz help thanks brainiest if right
Answer:
1000=1
1500=1.5
500=0.5
75=0.1333333333333
1=0.001
x/1000=y
Step-by-step explanation:
6k+9k<0
−2 −1 0 1 2 3 4 5 6 7 8
Answer:
Step-by-step explanation:
Here is your answer
6k+9k<0
Simplify
6k+9k<0
15k<0
divide the sides by 15
15k /15 < 0 /15
1k<0
k<0
//
3 km : 1200 m
? : ?
what is both mean
Step-by-step explanation:
Answer in attached picture
hope it helps
Answer:
5:2
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
is 5 1/25 a rational or irrational number
Step-by-step explanation:
it's rational
as a decimal 5.04
Mark me brainliest
1. Today at work Lori will model seven different outfits. It usually takes
her 25 minutes to change into her outfit, have her make-up touched up
and her hair combed and brushed into place. How much time will she
spend getting ready to model? Format Hours and Minutes
?????????????????????????????
Answer:
∠ WMX = 65°
Step-by-step explanation:
∠ WMX = ∠ VMX - ∠ VMW = 90° - 25° = 65°
Aaron works construction and only worked three (3) days last week. How many hours did he total for the three days he worked? _
Answer:
The answer is 72
Step-by-step explanation:
(2-6i)(8+i)(9-3i). If u could show me the process that would be great ty <3
Answer:
(19)(-8i)
Step-by-step explanation:
(2 - 6i)(8 + i)(9 - 3i)
(2 + 8 + 9)(-6i + i - 31)
(19)(-8i)
If m/n = 0,mnnnnn....., what is the value of m+n
Answer:
n
Step-by-step explanation:
m/n = 0
=> m = 0 × n
=> m = 0
n + 0 = n
0.09 is one tenths of
Answer:
0.9
Step-by-step explanation:
Hope it helps you
Answer:
if it`s one tenth, multiply 0.09 by 10
0.09 is one tenth of 0.9
Elizabeth continued to save for her car down payment.
What was her balance A after she made another deposit?
$995
$985
$975
$855
After the deposit of $ 65.00 on 09/ 02 /06 the balance in her account would be :
[tex] \hookrightarrow ( \$920 + \$65) = \$985[/tex]
The value of balance will be : -
[tex] \hookrightarrow ( \$920 + \$65) = \$985[/tex]
what is the answer of 81g^2 - 36f^2 ?????
Answer:
(9g - 6f)(9g + 6f)
Step-by-step explanation:
81g^2 - 36f^2 =
(9g)² - (6f)² =
(9g - 6f)(9g + 6f)
Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.
Answer: step 5. -11.8+9.8 = -2
Step-by-step explanation:
Together, two pipes can fill a tank in 3 hours.
One pipe alone can fill the tank in 5 hours.
How long does it take for the other pipe to
fill the tank alone?
Answer: 7.5 (h)
Step-by-step explanation:
Let say
a the outflow of the first pipe
b the outflow of the second pipe
T the volume of the tank.
x the time for filling with the second pipe
two pipes can fill a tank in 3 hours: a*3+b*3=T
One pipe alone can fill the tank in 5 hours : a*5=T
3*b=T -3a ==> 3b= 5a*3a=2a
b=2a/3
b*x=T ==> 2/3*a*x=T ==> 2/3*T/5*x=T ==> 2/15*x=1
x=15/2 = 7.5 (hours)
Gabriel borrowed some money from his friend in order to help buy a new video game system. Gabriel agreed to pay the friend back some amount every week until his loan was paid off. Let LL represent the amount Gabriel owes his friend after tt weeks. A graph of LL is shown below. Write an equation for LL then state the slope of the graph and determine its interpretation in the context of the problem.
The equation of the line is y = (15/2)x + 80.
The slope of the line is 15/2.
We have,
The coordinates from the graph:
(0, 80) (2, 65) and (3, 55).
Now,
The slope can be calculated as:
= (d - b) / (c - a)
where (a, b) and (c, d) are the two coordinates.
Consider (a, b) = (0, 80) and (c, d) = (2, 65)
Slope = (65 - 80) / (2 - 0)
Slope = 15/2
Now,
The equation of the line:
y = mx + c _______(1)
Where m is the slope and c is the y-intercept.
Consider: (0, 80) = (x, y)
80 = 15/2 x 0 + c
c = 80
And,
Substitute c = 80 and m = 15/2 in (1).
y = (15/2)x + 80
Thus,
The equation of the line is y = (15/2)x + 80.
The slope of the line is 15/2.
Learn more about the equation of a line here:
https://brainly.com/question/23087740
#SPJ3
60 POINTS!!!!! i need help please!!!!!!!!!!
Answer:
D(3, 3)
The slope of line AB is -2.
The slope of line CD is 1/2.
Step-by-step explanation:
I chose point D (shown in the figure below) since it lies on the intersection of grid lines and is easy to read. The coordinates of point D are (3, 3).
Point A(-3, 3); point B(-1, -1)
slope of line AB:
[tex] m = \dfrac{y_2 - y_1}{x_2 - x_1} [/tex]
[tex] m = \dfrac{-1 - 3}{-1 - (-3)} [/tex]
[tex] m = \dfrac{-4}{-1 + 3} [/tex]
[tex] m = \dfrac{-4}{2} [/tex]
[tex] m = -2 [/tex]
The slope of line AB is -2.
Point C(1, 2); point D(3, 3)
slope of line CD:
[tex] m = \dfrac{3 - 2}{3 - 1} [/tex]
[tex] m = \dfrac{1}{2} [/tex]
The slope of line CD is 1/2.
given the diameter of a circle is 17 1/2cm, find its area. (use π=22/7)
Step-by-step explanation:
a
[tex]area \: of \: circle = \pi{r}^{2} \\ = 22 \div 7{ \times (35 \div 2)}^{2} \\ = 3.14 \times 306.25 \\ = 961.625 {cm}^{2} [/tex]
hope it helps.stay safe healthy and happy...if 9m + 18= -27, then 4m - 5= ? Please help!