Answer:
Step-by-step explanation:
∠A and ∠B are vertical => ∠A=∠B
20x+10=30x-10
20x-30x= -10-10
-10x= -20
x= -20 / -10 = 20 / 10 = 2
x=2
Good luck!
Answer:
2
Step-by-step explanation:
Ok remember this because its going to appear alot in geometry. Vertical angles are ALWAYS congruent and congruent means when two things are equal/ are the same.
If angle a and b are vertical angles what does that mean?
they are CONGRUENT!
you know A = 20x+ 10 and B= 30x-10
so you can write it as
20x+10 = 30x-10
because Angle A and B equal each other
then get the variable by itself so subtract -20x on both sides
10 = 10x-10
then add 10 to both sides which is
20 = 10x
and divide 10 on both side and 20 divided by 10 is 2
so 2 =x
which is the same as x =2
Pranav spent half of his weekly allowance on candy. To earn more money his parents let him clean the gutters for $6. What is his weekly allowance if he ended with $13?
Answer:
14 dollars
Step-by-step explanation:
13-6= 7 which is the half he spent so 7 times 2 is 14
On Monday, Joseph got a notice from the bank saying that he had overspent, so his account balance was -$53. On Tuesday, he withdrew at the bank’s cashier a $60 amount. On Friday, he then deposited his weekly salary of $420. What will be Joseph’s bank account balance after he deposited his weekly salary?
Answer:
433 dollars I think. I'm not 100% sure
Answer:
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Step-by-step explanation:
Which property is illustrated by the following statement?
5g + 7 = 7 +5g
O A. Commutative Property of Multiplication
OB. Inverse Property of Multiplication
O
C. Commutative Property of Addition
D. Associative Property of Addition
Jane paid $40 for an item after she received a 20% discount. Jane's friend says this means that the original price of the item was $48.
Answer:
Jane's friend is correct
Step-by-step explanation:
$40-100%
x -120%
x=120*40/100=$48
I hope i calculated correctly
p=13 z=4
you have 5p outfits in your closet your friend has 9z who has more outfits in there closet
Answer:
you have more outfits than your friend
Step-by-step explanation:
you:
5*13=65outfits
friend:
4*9=36outfits
1)Write the ratio of oats to seeds in three different ways 5 cups of oats 3 cups of seeds 1 cup of nuts 2 cups of raisins
Answer:
5 to 3
5 : 3
5 / 3
Step-by-step explanation:
Given:
5 cups of oats
3 cups of seeds
1 cup of nuts
2 cups of raisins
Write the ratio of oats to seeds in three different ways
Ratios can be written in the form
1. A to B
2. A:B
3. A/B
There are 5 cups of oats 3 cups of seeds
Ratio of oats to seeds can also be written as
5 to 3
5 : 3
5 / 3
3 =2b -3 can someone help me understand this
Answer:
Step-by-step explanation:
Answer: 3=b
Step-by-step explanation:
First get the like terms 3 and (-3) on one side.
You do this by either adding or subracting, it depends on the sign of the number. -3 is negative 3 but you have to add it to make it zero and on the other side you add it and get 6.
Then you divide 6 by 2. 2b by 2 to get the variable alone and 3=b is your answer.
ASAP! THERE IS ANOTHER ONE!
How will the volume of a cube change if its edge becomes twice as long; 3 times as long; 10 times as long; n times as long?
State the percent to the nerest tenth. Original= 311. New=300
Answer:
3.54%
Step-by-step explanation:
311-300=11
(11/311)×100=3.54 (2 d.p)
Please help me!!
Select the correct answer.
Clarissa's sister makes weekly installment payments for a motorized scooter she purchased from a friend. She purchased the motorized scooter for $600 and is paying $18.75 a week to her friend until it is paid off.
Clarissa's sister wants to know when she has $150 left to pay for the motorized scooter.
Select the equation and solution for the number of months, x, it takes her to have $150 left to pay.
A) -18.75x + 600 = 150
Clarissa's sister will have $150 left to pay after 24 weeks.
B) 18.75x − 600 = 150
Clarissa's sister will have $150 left to pay after 8 weeks.
C) -18.75x + 150 = 600
Clarissa's sister will have $150 left to pay after 24 weeks.
D) 18.75x − 150 = 600
Clarissa's sister will have $150 left to pay after 8 weeks.
Answer:
(A.)
Step-by-step explanation:
Hope it helps :)
Have a good day/night
Brainliest pls?
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Answer:
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what is 6^2 equivalent to
Answer:
36
Step-by-step explanation:
6 to the second power or 6^2 is equivalent or equal to 36, 6x6, 36/1, 36/36
Or if you were looking for just the answer, 36.
Hope that helped (lol)
Dorothy is buying desks. This table shows how the cost depends on
the number of desks purchased.
Desks Cost ($)
8
24
9
27
10
30
11
33
What is the constant of proportionality of this relationship?
Answer:
one desk costs $3
Step-by-step explanation:
the increase in prices if another table were added on is $3 thus for every table you buy, $3 each
$=3x
x being the number of tables
furthermore, constant increase
Billy is paid $100 for 25 hours of work. What is the rate?
Answer:
1 hour: 4 dollars
Step-by-step explanation:
If Billy is being paid $100 for 25 hours of work, that means for every 5 hours of work, he is making $20. This means that for every hour of work, Billy is making $4. So the rate is 1 hour: 4 dollars
I hope this helps :)
One factor of a polynomial p(x) is (x + 7).
What is the numerical value of p(-7)?
Dene-
My Progress
The required value of function p(x) at x = -7, p(-7) is zero.
What are functions?Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
here,
As given that one factor of a polynomial p(x) is (x + 7).,
Since factor x, + 7 also represents one of the zeros of a polynomial function p(x).
So, when one put the value x = -7 in the function, the function gives zero in the outcome.
Thus, the required value of function p(x) at x = -7, p(-7) is zero.
Learn more about function here:
brainly.com/question/21145944
#SPJ2
FIRST ANSWER GETS CROWNED BRAINLIEST!!!!!
A phone company has two long distance plans. Plan A charges a flat monthly fee of $13 and $0.37 per minute of long distance calls Plan B charges a flat monthly fee of $28 and $0.15 per minute of long distance calls. After how much time on long distance calls to the nearest minute, would the cost of plan A be equal to the cost of plan B?
Answer:
68.18minStep-by-step explanation:
let the cost of plan A be Y1
and the cost of plan B be Y2
let the number of minutes for both plans be x
let us model the cost of plan A
Y1= 13+0.37x-------1
let us model the cost of plan B
Y2= 28+0.15x------2
when Y1=Y2, we can now solve for x which is in minutes
13+0.37x=28+0.15x
collect like terms
13-28=0.15x-0.37x
-15=-0.22x
divide both sides by -0.22
x=-15/-0.22
x=68.18min
Find the value of x in the triangle below if y=26°
Answer:
x=77°
Step-by-step explanation:
The total angle of a triangle is 180°
There is 2x, and y =26°
180-26=154.
2x=154
/2 /2 divided by 2
x=77°
What is 3x+4=10 solve for x
Please help me
Answer:
x=2
Step-by-step explanation:
3x+4=10
3x=10-4
3x=6
x=6/3
x=2
What is the slope of a line that is parallel to the graph of 5x+4y=y?
Answer:
-5/3
Step-by-step explanation:
Heather bought a new shirt for $17.46. She paid with a $20 bill. How much change did she get back?
Answer: 3.46
Step-by-step explanation:
find the slope y=-5x-1
Answer: -5
Step-by-step explanation:
−4 4/5÷4 what is the awnser?
Answer:
-1.2 or -1 1/5
Step-by-step explanation:
What is this answer ?
Answer:
One possible answer is 25/4
Answer:
x > 84
Step-by-step explanation:
Multiply each side by 4 to cancel out the 4 under x. It should now look like this: x > 84I hope this helps!
*to plot on the number line is the photo below*
One pound equals approximately 454 grams.
About how many grams is à pound?
Answer:
454 grams I believe..................
4 1/3 is what type of fraction
Answer:
A mixed fraction/mixed number
Step-by-step explanation:
Answer: mixed number
A mixed number is a fraction with a whole number, and a fraction. The number 4 1/3 has a whole number, and a fraction.
The answer is mixed number. Hope this helps!
The only thing i need
Answer:
Dilation
Step-by-step explanation:
Hope it helps!!
Answer:
Dilation
Step-by-step explanation:
hopes this help
What is this ? I need help on it ????
Answer:
Help on what?
What are the next two terms in this sequence: O, T, T, F, F, S, S,E,
Answer:
The order goes by -
O - one
T - two
T - three
F - four
F - five
S - six
S - seven
The next two numbers are -
E - eight
N - nine
Answer:
N, T
It's like one, two, three, four, five, six, seven, eight, nine, ten.
Which numbers are rational?
12
81, 50, -12, 0,
5
6.54
Answer:
All are rational
Step-by-step explanation:
A rational number is a number that can be written as a fraction.
I think the answer is -12
Eliza's backpack weighs 18 and StartFraction 7 over 9 EndFraction pounds with her math book in it. Without her math book, her backpack weighs 14 and StartFraction 7 over 8 EndFraction pounds. How much does Eliza's math book weigh? 3 and StartFraction 11 over 72 EndFraction pounds 3 and StartFraction 65 over 72 EndFraction pounds 4 and StartFraction 11 over 72 EndFraction pounds 4 and StartFraction 65 over 72 EndFraction pounds
Answer:
[tex]Math\ Book = 3\frac{65}{72}\ kg[/tex]
Step-by-step explanation:
Given
[tex]Backpack = 18\frac{7}{9}kg[/tex] --- with math book
[tex]Backpack = 14\frac{7}{8}kg[/tex] --- without math book
Required
Determine the weight of her math book
To do this, we simply calculate the difference in the weights given.
Math Book= Backpack(with math book) - Backpack (without math book)
[tex]Math\ Book = 18\frac{7}{9} - 14\frac{7}{8}[/tex]
[tex]Math\ Book = \frac{169}{9} - \frac{119}{8}[/tex]
Take LCM
[tex]Math\ Book = \frac{8 * 169 - 9 * 119}{72}[/tex]
[tex]Math\ Book = \frac{1352 - 1071}{72}[/tex]
[tex]Math\ Book = \frac{281}{72}[/tex]
[tex]Math\ Book = 3\frac{65}{72}\ kg[/tex]
Answer:
b
Step-by-step explanation: