Answer:
89 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees, so we can add up A and B and make it equal to 180.
(x-18)+(x-20)=180
2x-38=180
2x=218
x=109
then, we plug in 109 for x in the mB equation.
mB=x-20
mB=109-20
mB=89 degrees
therefore, the measure of B is 89 degrees.
Answer:
B = 89
Step-by-step explanation:
Supplementary angles: A + B = 180
Simplify: x-18 +x -20 = 180
2x-38 = 180
2x = 218
x= 109
B = x-20
B = 89
How do I simplify (6x-10x^2+3)-(5x^2+3x-4) ???
Answer:
Step-by-step explanation:
6x-10x^2+3-(5x^2+3x-4)
when there is a - in front of an expression in (), change the sign of each term in the expression
6x-10x^2+3-5x^2-3x+4
now collect like terms
3x-10x^2+3-5x^2+4
3x-15x^2+3+4
3x-15x^2+7
now use the commutative property to reorder the terms
-15x^2+3x+7
=-15x^2+3x+7
I NEED HELP ASAP PLZZZZZZ ANYONE!!!!!!!!
Carlos harvests cassavas at a constant rate. He needs 35 minutes to harvest a total of 15 cassavas.
Write an equation to describe the relationship between ttt, the time, and ccc, the total number of cassavas.
Answer:
c=3/7t
Step-by-step explanation:
?=c/t
15/35 (reduce) 3/7
c=3/7t
Karissa is going water skiing. She
can purchase skis for $125 or she
can rent skis for $30 an hour. In
both cases she must rent a safety
flotation device to wear that is $5
per hour. Which inequality shows the
number of hours Karissa must ski
for the cost of buying skis to be less
than renting skis?
A 125 + 5x > 30x
B 125 + 5x < 35x
C 125 + 5x < 30x
D 125 + 5x > 35x
Answer:
A
Step-by-step explanation:
Help a gal out yal!
1.) Which of thr following equations is noy a linear equation?
A.) x-4y=-1
B.) x=2
C.) y=x-1/2
D.) x 2=5y
2.) Which of the following points lies on the graph of this equation?
2y=x+3
A.) (0,3)
B.) (2,5)
C.) (-1,2)
D.) (1,2)
3.) Fin the value of y that makes the equation 3y = x + 2 true, when x=1.
A.) 1
B.) 3
C.) 1/3
D.) 2
The bill at a restaurant came to $136.40.The customer decided to leave a 15% tip.What was the total bill including tip.
Answer:
$156.86
Step-by-step explanation:
To calculate tip, you need to multiply the total bill by the percent tip you are going to leave. In this case the bill is $136.40, and the customer is going to leave a 15% tip. So, you would want to move the decimal place over to the left by 1, which you should get 13.64 as your number. Then divide it in half, which should give you 6.82. Now add 13.64 and 6.82 with the original bill price. If you don't add the 13.64 you would've forgotten the 10% part of the tip. At the end you should get $156.86 as your final bill.
A master baker can fill a big order in 6 hours. A student baker can fill the same order in 8 hours. They start working together, and after 2 hours, the student leaves and the master baker finishes the work alone. How long will it take him to finish the order?
Answer:
It will take the master baker 2.86 hours to finish the remaining order after 2 hours.
Step-by-step explanation:
the time taken for the master baker to fill the order = 6 hours
the time taken for the student baker to fill the order = 8 hours
let the time taken for both to finish the work together if they work at the same rate = x
[tex]\frac{x}{8} + \frac{x}{6} =1\\\\\frac{3x + 4x}{24} = 1\\\\7x = 24\\\\x = \frac{24}{7}\\\\x = 3.43 \ hours[/tex]
After 2 hours, the remaining time for them to finish the work together is given by;
t(remaining) = 3.43 hours - 2 hours = 1.43 hours
Working at the same rate, 2 persons will take 1.43 hours to finish the remaining work.
One person will take hour many hours ?
2 persons working at the same rate --------> 1.43 hours
1 person working at the same rate -----> ?
= 2 x 1.43 hours
= 2.86 hours
Therefore, it will take the master baker 2.86 hours to finish the remaining order after 2 hours.
Answer:
2 hours 30 minutes
Step-by-step explanation:
Which step did this student do wrong?
Answer:
Step 1
Step-by-step explanation:
When the student first removed the parenthesis by multiply it by 7, he forget to multiply 5 by seven. So instead of x + 3 + 7x - 35, he got what you see on the picture before you.
Please help!Calculate the slope and in your notebook graph the rates of change for the three cars.
Car C travels at the rate indicated in the table.
The unit rate is _____ miles per hour
Answer:
52 mph
Step-by-step explanation:
The grass in Jamie's yard grew 16 centimeters in 10 days. It was growing at a constant rate.
How many days did it take the grass to grow 1 centimeter?
days
How many centimeters did the grass grow in 1 day?
centimeters
Answer:
It took 1.6 days for the grass to grow 1 centimeter
The grass grew 0.625 centimeters in 1 day
Step-by-step explanation:
Given f(x) = 7x − 2 , what is the value of f(2) ?
Answer:
7(2)-2
=14-2
Which makes it
=12
What is the slope of the line that passes through the points (-9, 5)and (-17, 5) ? Write your answer in simplest form.
Answer:
0
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}[/tex]
[tex]\frac{5-5}{-17-(-9)}=\frac{0}{-8} =0[/tex]
slope=0
Why complex numbers comes in conjugates numbers?
Answer:
Complex conjugates are important for finding roots of polynomials. According to the complex conjugate root theorem, if a complex number is a root to a polynomial in one variable with real coefficients (such as a quadratic or a cubic equation), then so is its conjugate.
Step-by-step explanation:
Does this help
Answer:
Complex conjugates are important for finding roots of polynomials. According to the complex conjugate root theorem, if a complex number is a root to a polynomial in one variable with real coefficients (such as a quadratic or a cubic equation), then so is its conjugate.
Step-by-step explanation:
Find the hcf by using long division method (219,1321,2320,8526)
Step-by-step explanation:
I have attached the working
What is the property of 42x1=42
I need answer ASAP!!!!
Solve for S pls!!!
5s = 3s + 30
Answer:
s= 15
Step-by-step explanation:
3 x 15 = 45
30 + 45 = 75
75 divided by s(15) =
5
this is how I got my answer
good luck and I hope this helps! :)
and can I get a brainliest? you don't have to, though
what is 15 3/5 times 6
Answer: 93 3/5
Step-by-step explanation:
3/5 + 3/5 + 3/5 = 9/5
9/5 + 9/5 = 18/5 = 3 3/5
15 x 6 = 90
90 + 3 3/5 = 93 3/5
Let me know if this helped! :D
What is the solution set for -4x + 10 ≥ 5x + 55?
Answer:
-4x + 10 ≥ 5x + 55
-9x + 10 ≥ 55
-9x ≥ 45
x ≤ -5
Step-by-step explanation:
Pls i need to be the brainlist PLS
Answer:
x < -5
Step-by-step explanation:
-4x > 5x + 45
-9x > 45
x < -5 <--- switches because dividing by negative number
Worth all my points plus Brainlist answer number 14 please it’s due in three hours
Answer:
Answer below
Step-by-step explanation:
2.08
2.082
2.8
2.82
√8 (it's 2.8284)
Answer:
let me know if im incorrect!
Step-by-step explanation:
2.082, 2.08, 2.8, 2.82, 8 squared (2.828)
Are the ratios 12:20 and 4:5 equivalent?
12:20, devide it by 4 and you'll get
= 3:5
Thus
12:20 [tex]\red{\bold{\neq}}[/tex] 4:5
Consider the equation and its solution.
8 (x minus 2) = 64. 8 x minus 16 = 64. 8 x = 80. x = 10.
Which property is used in the last step to find that x = 10?
Answer:
The answer is Division property of equality
Step-by-step explanation:
Answer:
division property of equality
Step-by-step explanation:
Just took the test on edge
(x,-5) and (1,2); slope = 7/6
Answer:
x=-5
Step-by-step explanation:
y-2=(7/6)(x-1)
y=(7/6)x+5/6
using y =-5
-5=(7/6)x+5/6
-35/6=(7/6)x
x=-5
Which equation represents slope-intercept form? Question 3 options: Y= mx + b Y = mx Ax + By = C
Answer:
Slope-intercept equation.
Step-by-step explanation:
y = mx + b
The mass of one carbon atom is
0.00000000000000000000001994 g.
Answer:
correct
Step-by-step explanation:
I hate just giving out answers so do this problem and you will get the answer The mass of a single carbon atom is 1.994 x 10to the power of 23. I am almost a hundread percent sure you did this. have a great day!
46 divided by the second power of 10
Answer: 0.46
Step-by-step explanation: Because ten to the second power is 100, 46 divided by 100 is 0.46
Help......,...........
66 degrees
Thing you have to know for these types of problems: The total measure of all angles is 180 degrees.
With that in mind, if we add 83 and 31, we get 114 degrees.
Now subtract from 180 and you will get 66 degrees.
Hope this helps, Please mark branliest if it did
Consider the statement "Worldwide in 2014, there are more than $2.5 trillion in credit card transactions." Make sure that you fill in each answer area before checking "How Did I Do?". What was the daily average dollar amount of transactions? Round to the nearest hundred million dollars. $ Number How many dollars were spent in credit card transactions each day?
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
In 2014:
Worth of credit card transaction = $2.5 trillion
The daily average dollar amount of transaction:
Number of days in a year = 365
(Yearly worth of transaction / number of days in a year)
$(2,500,000,000,000) / 365
= $6,849315068.4931
= $6,849, 000,000 (nearest 100 million dollars)
Amount spent in transaction daily :
= $6,849,315,058
Choose the mixed number that is equivalent to this decimal 3.242424...
Answer:
3.24 = 3 6/25
Step-by-step explanation:
- Rewrite the decimal number as a fraction with 1 in the denominator.
- Multiply to remove 2 decimal places. Here, you multiply top and bottom by 100
- Find the Greatest Common Factor (GCF) of 324 and 100, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 4
- You should end up with that answer..
freeZ Pointz!!!!!!!!!
Answer:
thankk youu
Step-by-step explanation:
One of the largest swimming pools in the world is in Garden City, Kansas. It is rectangular and
measures 67 meters by 100 meters. If you swim diagonally across the pool, how many meters would
you swim? Round your answer to the nearest whole meter
Answer:
The answer is 7,000 meters
Step-by-step explanation:
because you do 67*100 which equals to 6,700 and then u round it which makes it equal to 7,00 meter
Answer:
120 meters (approx)
Step-by-step explanation:
Think of the rectangle like two triangles;
if we find the hypotenuse of one, then we know the length of the rectangle across
Remember the Pythagorean theorem:
a^2 + b^2 = c^2
where a and b are the sides of the triangle
so then substitute in the known values:
a = 100
b = 67
now solve
100^2 + 67^2 = c^2
14489 = c^2
sqrt(14489) = c
120.37 = approx c