Answers
15=2x-1
16=2x
8=x
x=8
Answer:
8°
Step-by-step explanation:
The laws of angles say that angles opposite the vertex (as in this case) are equal
So
(7x + 15)° = (9x - 1)°
let's remove the ° just so as not to get confused
7x + 15 = 9x - 1
To solve we must move the Xs on one side of the = sign and the free numbers on the other. For that, we must do the same operations on both sides. If we subtract from one, from the other also, and so on.
So we are going to substract 15
(7x + 15) - 15 = (9x - 1) -15
It result:
7x = 9x - 16
We are going to substract 9x
(7x) - 9x = (9x - 16) - 9x
It result:
7x - 9x = -16
-2x = -16
We are going to change the signs (ON BOTH SIDES)
2x = 16
x = 8
now we have the value of X
we substitute x in the equations
7(8) + 15 = 9(8) - 1
56 + 15 = 72 - 1
71 = 71
So, the angles are 71°
And the Value of X is 8°Related Questions
Find the mean absolute deviation of the set: 10,5,7,14,19,32,25
Answers
Answer: I believe it would be 8.
Step-by-step explanation:
Larry invests $7,000 in an account that earns 6% interest compounded continuously. How much will Larry
have in 7 years?
Answers
Answer:
9940
Step-by-step explanation:
its easy please give brainlist
Answer:
~10525.41 after 7 years
Step-by-step explanation:
y=a(1+r)^x
That's the equation for exponential growth
a= the starting amount
r= the rate at which it is growing
x=years
with that information
a=7000
r=6% or 0.06
so y=7000(1+0.06)^x -> y=7000(1.06)^x
x=7
y=7000(1.06)^7
y~10525.41
How do I solve this equation?
Answers
Answer:
x=14
Step-by-step explanation:
Hope This Helps!
Answer:
x = 22/3, x=14
Step-by-step explanation:
Start by isolating whatever is in the absolute value sign; in this case divide either side by 4
4|1-3/4x + 7| =10,
----------------- ----
4 4
|1-3/4x + 7| = 10/4 = 5/2,
now if we apply the absolute value rule we know that 1-3/4x + 7 will be equal to -5/2, and 5/2
1-3/4x + 7 = 5/2 and 1-3/4x + 7 = -5/2
-3/4x + 8 = 5/2,
-3/4x=5/2-8,
-3/4x = 5/2-16/2,
-3/4x = -11/2,
x = -11/2*-4/3 = 44/6 = 22/3
-3/4x+8 = -5/2
-3/4x = -5/2-8
-3/4x = -5/2-16/2
-3/4x = -21/2
x = -21/2*-4/3 = 82/6 = 14
Is this graph a function?
Answers
Answer:
yes
Step-by-step explanation:
Identify the most reasonable unit to measure the volume of a glass of orange juice.
Answers
Answer:
Liters
Step-by-step explanation:
Every recipient that has a volume of liquid in it,you mesure it in liters!
solve the following equation
3x + 5 / 2 X + 7 = 5
pls pls pls need ans. for this question
Answers
Answer:
-30/7 = x
Step-by-step explanation:
im guessing u mean (3x+5)/(2x+7) = 5
3x+5 = 5(2x+7)
3x+5=10x+35
-7x=30
x= -30/7
Complete the real-world situation that could be modeled by the equation 150 − 8x = 170 − 12x. Xavier has $150 in his lunch account. He spends $ for lunch each day. Zack has $ in his lunch account. He spends $ each day. After how many days will the boys have the same amount of money in their accounts?
Answers
Answer:
5 days
Step-by-step explanation:
The question above is modeled by the equation :
150 − 8x = 170 − 12x.
After how many days will both have ye same amount :
Number of days = x
Collect like terms
-8x + 12x = 170 - 150
4x = 20
x = 20/4
x = 5 days
The boys will have the same amount in their account after 5 days.
the product of two rational numbers is -14/45. If one of the no. is -7/9 find the other no.
pls pls i want this ans. fast
Answers
Answer:
its 2/5
Step-by-step explanation:
-7/9 x 2/5 = -14/45
Answer:
14.45/7.9=1.82...this is your answer
john set a record when he caught a salmon that weighed 97 1/2pounds. james caught a salmon that weighed 74 7/16pounds. How much less than the record was this?
Answers
Answer:
23.0625 or 23 13/200
Step-by-step explanation:
97 1/2 - 74 7/16 = 23.065 or 23 13/200
Fun fact: The heaviest salmon caught is actually 97 pounds!
If you found this helpful, please give me brainliest. Thanks!
)A class has 9 boys and 15 girls. What is the ratio in simplest form that compares number of boys to total number of students?
3:5
3:8
9:15
9:24
Answers
Answer:
3:5
Step-by-step explanation:
3, 6, 9.
5, 10, 15.
always see which numbers fit and which numbers dont
Answer:
9:24 is the ratio.
Step-by-step explanation:
Taylor can clean pools at a constant rate of 25 pools per hour. How many pools can Taylor clean in 25 hours?
Answers
Taylor can clean 625 pools in 25 hours
If Taylor can clean pools at a constant rate of 25 pools per hour, this is expressed as:
25 pools = 1hour
We are to calculate the number of pools that Taylor can clean in 25 hours, this is expressed as;
x = 25 hours
Divide both expressions
25/x = 1/25
x = 25 * 25
x = 625 pools
Hence Taylor can clean 625 pools in 25 hours
Learn more here: https://brainly.com/question/19195829
i suck at math. help me. i would app it.
Answers
Answer:
x= 2
Step-by-step explanation:
y = 7 means it is parallel to the x axis . so the perpendicular line is to be parallel yo the y axis. .
so the equation is to be like x = c
but it is passing (2,13)
so the equation is
x= 2
Brandon stated that 0.66 and are equivalent. Do you agree? Explain why or why not. 2
Answers
Answer:
yes because 2 divided by 0.66 is 0.33 hope this help!!
Step-by-step explanation:
Does anyone have the answer key to these proofs? They are Mrs. E Teaches Math introductory proofs. There are 14 total. I've done 1-9.
Answers
Statement 1: 2AB = AC
Reason 1: Given
--------------------------------------------
Statement 2: AC = AB+BC
Reason 2: Segment addition postulate (which your teacher abbreviated to "Seg + Post")
--------------------------------------------
Statement 3: 2AB = AB+BC
Reason 3: Substitution
--------------------------------------------
Statement 4: 2AB-AB = AB+BC-AB
Reason 4: Subtraction Property of Equality
---------------------------------------------
Statement 5: AB = BC
Reason 5: Combine like terms
----------------------------------------------
Notes:
The first reason is "given" since we just simply restate what the instructions provide. If you are given multiple items, you list each one at a time. The segment addition postulate is where we break a line into smaller parts and then build it back together.Substitution is simply replacement. We've replaced AC with 2AB.The subtraction property of equality is the idea where we subtract the same thing from both sides. In statement 4, we're subtracting AB from both sides.The last statement of any proof is always the thing we're trying to prove. Once we reach such a statement, there's no need to go any further since the proof has concluded.There are 5 question if you guys help me you’ll get brainlest:) 1/5
Answers
Answer:
D
Step-by-step explanation:
11/3 = 3.66
so it must be D
Answer:
c 3 2/3
Step-by-step explanation:
HELP ME PLS!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
1) Yes because the slope, 10x, is constant
2) Yes for every 1 hour of baby sitting $10 dollars is earned.
Consider Brainliest!
Can somebody explain how to do this
Answers
Answer:
The answer is 46.
Step-by-step explanation:
First, you will have to add up both functions in order to find the new expression for (g + f)(a) :
g(a) + f(a) = (g + f)(a)
(g + f)(a) = 3a + 3 + 2a - 2
(g + f)(a) = 5a + 1
Next, you have to substitute a = 9 into the function :
(g + f)(9) = 5(9) + 1
(g + f)(9) = 46
1. What is the measure of angle 4?
2. What is the measure of angle 1?
3. What is the measure of angles 3?
4. What is measure of angle 6?
5. What is the relationship between angles 4 and 5?
Answers
2) 85
3)63
4)20
5) same number across from each other I forgot what that was called
Answer:
bla bla bal bala bla bla bla bla hahahahhahahahhhehehhehehehheheh joke png
This is a math question I’m not really familiar with. Harry receives 30% commission on the appliances he sells. If he sells a TV for $350, a refrigerator for $400 and a heater for $440, how much does Harry make in commission?
Answers
Answer:
the answer is 357
Step-by-step explanation:
350 + 440 + 400 = 1190
30% of 1190 = 357
May I have brainliest please? :)
Help rn please!!! Urgent
Answers
Answer:
try 3 i need 20 more letters
Answer:
f(x) = 2x^2 + 12x +10
Step by step solution:
x = 1 x = 5 y = 10
f(x) = a(x+1)(x+5)
f(0) = a(1)(5) = 10
5a = 10
Divide by 5
a = 2
f(x)= 2(x+1)(x+5)
f(x) = 2(x^2 +6x +5)
f(x) = 2x^2 + 12x +10
brainliest much appreciated!
The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number?
Ox+(x + 9) = 47
Ox - (x + 9) = 47
OxIx + 9) = 47
xix - 9) = 47
For big exam! Help
Answers
Answer:
Step-by-step explanation:
We are given
[tex]X + Y = 47\\and\\Y = X + 9\\\\use \: substitution\\X + (X + 9) = 47[/tex]
Answer: x+(x+9)
Step-by-step explanation:
Can someone help me?
Answers
Answer:
B. Yes, 3.5
Step-by-step explanation:
Proportional Variables
Two variables x,y are proportional if one of them can be calculated as the other variable time a fixed constant:
y = k.x
Or, equivalently:
k = y/x
k is called the constant of proportionality.
The table gives three points: (13,45.5) (14,49) (15,52.5)
To find out if the values correspond to a proportional relationship, we find the value of k for each pair:
k = 45.5 / 13 = 3.5
k = 49 / 14 = 3.5
k = 52.5 / 15 = 3.5
Since the value of k is the same for all the points, we conclude the table shows a direct proportional relationship and the constant of proportionality is 3.5
How many turning points are in the graph of the polynomial function?
Answers
Answer:
there are uncountable turning points in polynomial funcatiin
What is 30% out of 89
Answers
Answer:
30 percent off 89.00 is 62.30
the base of a triangle is 7 less than twice its height. If the area of the triangle is 102m^2, find the length of the base.
Answers
Answer:
The length of the base will be: 17 m
Step-by-step explanation:
Given the area of the triangle
[tex]A=102\:m^2[/tex]
Using the formula of Area of a triangle:
[tex]A=\frac{1}{2}\left(b\times h\right)[/tex]
Here,
'b' is the base'h' is the heightAs the base of a triangle is 7 less than twice its height.
so
[tex]b=2h-7[/tex]
so the formula of Area of a triangle becomes
[tex]102=\frac{1}{2}\left(\left(2h-7\right)\times \:h\right)[/tex]
[tex]204=h\left(2h-7\right)[/tex]
[tex]2h^2-7h=204[/tex]
[tex]2h^2-7h-204=0[/tex]
[tex]\left(2h+17\right)\left(h-12\right)=0[/tex]
[tex]2h+17=0\quad \mathrm{or}\quad \:h-12=0[/tex]
[tex]h=-\frac{17}{2},\:h=12[/tex]
As height can not be negative, so:
[tex]h=12[/tex] m
Hence, the length of the base:
[tex]b=2h-7[/tex]
[tex]= 2(12)-7[/tex]
[tex]=24-7[/tex]
[tex]= 17[/tex] m
Therefore, the length of the base will be: 17 m
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
Answers
Answer:
4 btw lovinggg the M !!!!!
Step-by-step explanation:
Answer:
Undefined
Step-by-step explanation:
To find slope, you need the difference of y over the difference of x.
For example, let's use (-8,8) and (-8,3).
Difference of y: 8-3
Difference of x: -8-(-8) (Note that the order of the x values must be the same as the order of the corresponding y values of the coordinate)
(8-3)/(-8+8)
= 5/0
Now, we see that we have to divide by 0, except it's impossible to divide by 0, so the slope is left as undefined.
Please help me I need help
Answers
Answer:
Option c) [tex]0.25[/tex]
Step-by-step explanation:
[tex]p(red \cap truck) = p(red) \times p(truck)[/tex] ([tex]truck[/tex] is referring to pickup truck)
[tex]0.06=p(red) \times 0.24[/tex] (given that the probability of a red pickup truck is 0.06 and the probability of a pickup truck is 0.24)
[tex]p(red)=0.06\div0.24[/tex]
[tex]p(red)=0.25[/tex]
∴ The probability that a vehicle is red is [tex]0.25[/tex].
Hope this helps :)
HELP PLEASE ILL GIVE BRAINLY
The next event requires each runner to jump 8 hurdles that are spaced 12.3 meters apart. If there are 15 meters from the starting line to the first hurdle and 10.5 meters from the last hurdle to the finish line, how long is the race? Show your work. (2 points)
Answers
Answer:
97.5
Step-by-step explanation:
25.5+[8(12)]
HELP ME PLZZ I NEED HELP WITH THIS!!
Answers
Step-by-step explanation:
7/5(1/7)(-10)
=(1/5)(-10)
=-2
PLZ HELP I DONT KNOW THE ANSWER
Answers
Answer:
15 feet off the ground
Step-by-step explanation:
Hope this helps!
Answer:18
Step-by-step explanation:
1.5 times 12 =18