Answer:
z = 12
Step-by-step explanation:
6z + 51 = 123
6z = 123 - 51
6z = 72
z = 12
Hope that helps!
In a class, the ratio of girls : boys is 5:3.
What fraction of the class are boys?
please answer urgent , high points up for grabs , please give good explanation
Which is equivalent to (125)*?
125
125 3x
1253
125/5
Answer:
A
Step-by-step explanation:
it only makes sense, hope this helped
Decide whether each of the following pairs of expressions are equivalent for all values of x. If they are equivalent, show how you can be sure. If they are not, justify your reasoning completely.
a. (x - 5)(2x + 7) and 2x^2 - 3x - 35
b. 3(x - 2)^2 + 6 and 3x² + 18
solve for u 5u + 9 - 4u = 17 (also don't have the answer be a fraction)
Answer:
=8
Step-by-step explanation:
Answer:
u=8
hope this helps
Step-by-step explanation:
1000 points!
Match the civilization with the region it was located in:
1. Safavid
Anatolia
2. Mughal
Iran
3. Ottoman
India
Answer:
1. iran
2. South asia
3.Anatolia
Step-by-step explanation:
hehe
Answer:
1. iran
2. South asia
3.Anatolia
Step-by-step explanation:
Hester sells televisions. she earns a fixed amount for each television and an additional $30 if the buyer gets an extended warranty. If Hester sells 13 televisions with extended warranties, she earns 13,00. How much is the fixed amount earns for each television?
Using proportions, it is found that the fixed amount that she earns for each television is of $70.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, she sold 13 televisions with warranty, hence earning a total in bonus of 13 x $30 = $390.
Hence, the sum of the 13 fixed amounts is of 1300 - 390 = 910, hence the fixed amount she earns is given by:
$910/13 = 70.
More can be learned about proportions at https://brainly.com/question/24372153
#SPJ1
. How many dozen must be sold to make a profit of $90? Make a Selection: A. 45 B. 25 C. 30 D. 8
The price of a house is originally listed at $110,000. The owners are having a hard time selling it and decide to reduce the price to $101,200. What is the percentage decrease of the price of the house?
Answer:
8%
Step-by-step explanation:
110000 - 101200 = 8800 (change)
change/original price X 100
8800/110000 = 0.08
0.08 X 100 = 8
If Mia has brings 14 donuts to the party and Lizzy brings 14 also then how many cookie's is there all together
104.65/ 35
pls help and can u show me a example
Answer:
2.99 or 3
Step-by-step explanation:
Nevaeh has read 168 pages of a 210- page book. What percent of the book has Nevaeh not read?
Answer:
168 ÷ 210 X 100
80 % is your answer
Step-by-step explanation:
folloe me plzzz
UGENT! Please help due in 10 minutes :c I tried but I just..never got it..
Answer:
#19:the rule is every-time use the number and times it by 80%
#20:using a calculator, i got 16. i think it is wrong, but that is what i got.
please help me
give u 10pts
Answer:
The graph is not a function.
Step-by-step explanation:
Using the "vertical line test" to attach a vertical line to each of the points on the graph, we will find that the vertical line that passes through (0,0) has ot one, but two points on it. Remember, if the vertical line passes through more than one points, the graph is not a function. As we know, the vertical line passes through two points, those being (0, -4) and (0, -3). So, we can conclude that the graph is not a function.
Any consecutive sides of a parallelogram are parallel.
A. Always True
B. Sometimes True
C. Never true
ANSWER:Any consecutive sides of a parallelogram are parallel?
A. Always True is your answer.
18 = 3(3x - 6)
Please answer with solving steps thanks!
Answer:
jayfeather friend me
Step-by-step explanation:
1
8
=
3
(
3
−
6
)
1
8
=
9
−
1
8
2
Add
1
8
18
18
to both sides of the equation
3
Simplify
4
Divide both sides of the equation by the same term
5
Simplify
Solution
=
4
if f(x)=x²-18x+91, solve for x when f(x)=10
Answer:
x = 9
Step-by-step explanation:
x²-18x+91 = 10
x²-18x+81 = 0
(x-9)(x-9)= 0
x = 9
check:
9² - 18 (9) + 91
81-162+91 = 10
Find the slope on the coordinate plane (slope is rise\run).
Answer:
slope is 1
Step-by-step explanation:
its going up one and to the right one so 1/1=1
Answer:
i believe the slope is 1
Step-by-step explanation:
One bike has 2 wheels.
Which shows how many wheels (y) 4 bikes have?
A. Y=2+4
B. Y=2 x 4
C. Y= 2-4
Select the solution(s) to the following equation: (3x−2)(x+5)=0 SELECT ALL THAT APPLY
x=3/2
x=5
x=-5
x=2/3
x=-2/3
x=-3/2
Answer:
Step-by-step explanation:
Check by direct substitution. If we begin by checking x = 3/2, we substitute 3/2 for x in (3x - 2)(x + 5), obtaining (9/2 - 2)(3/2 + 5), which is NOT zero. Therefore x = 3/2 is not a solution.
(3*5−2)(5+5)=0 False. x = 5 is not a solution.
(3*[-5]−2)([-5+5)=0 True. x = -5 is a solution
x = 2/3: (3*2/3 - 2)( ) = 0. True x = 2/3 is a solution
x = -2/3: ( )( ) = -17 1/3; so x = -2/3 is not a solution
x = -3/2: ( ) ( ) = -22 3/4; so x = -3/2 is not a soution
Helpeoepeoeoeo show work
IMPORTANT THIGNS TO REMEMBER:
Has 20 lb. dog food!Gives dog 1 3/5 everyday!Find how much eaten after 2 days!Find how much is left!ANSWER:
Dog has eaten 3 1/5 after 2 days!
There is 16 4/5 left in bag!
EXPLANATION:
Since she gives 1 3/5 to her dog everyday and their asking for 2 days you would multiply 1 3/5 × 2 OR add 1 3/5 + 1 3/5
Which would give you 3 1/5
So, the dog has eaten 3 1/5 lb. of dog food in 2 days.
However then, you would subtract 20 lb. - 3 1/5 lb. because there is 20 lb. dog food in all and the dog has eaten 3 1/5 of it. This would give you 16 4/5 lb.
Meaning there is 16 4/5 lb. left in the bag of dog food!
How much must be added to each of the three number 1, 11, and 23 so that together they form a geometric progression?
Answer:
49
Step-by-step explanation:
Let the three numbers be a1, a2, a3
Let the number to be added to form a geometric progression = x
a1 = 1 + x ; a2 = 11 + x ; a3 = 23 + x
For a geometric progression :
a2 = a1 * r
a2 = (1+x)r
11+x = (1+x)r - - (1)
r = (11+x) / (1+x) ---(1)
a3 = a2 * r
a3 = (11+x)r
23+x = (11+x)r - - -
r = (23+x) / (11+x) - - (2)
Equate (1) and (2)
(11+x) / (1+x) = (23+x) / (11+x)
(11+x) * (11+x) = (23+x) * (1+x)
121 + 22x + x² = 23 + 24x + x²
121 + 22x + x² - x² - 24x - 23 = 0
98 - 2x = 0
-2x = - 98
x = 98 / 2
x = 49
8 is subtracted from a number,and then the difference is multiplied by 2.the result is 24.find the number
Answer:
20
Step-by-step explanation:
suppose the number is x
so
(x-8) * 2 =24
x-8=12
x=12+8
x=20
Which set of ordered pairs would define a line with a negative slope?
A.
(5, 5) and (0, 1)
B.
(3, 6) and (5, 1)
C.
(2, 3) and (7, 6)
D.
(2, 3) and (-4, -1)
Answer:
I believe it is B
Step-by-step explanation:
Im not good at explaing, but if you move forward three units and up 6, then draw a point, then go forward to 5 units and down to one unit and connect those dots, the line would be going down to the right
PLEASE HELP the rise of the ramp is 8 ft tall and the run of the ramp is 16 ft long what is the slope of the ramp
Answer:
1/2 because it is...........
Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
Answer:
AB = 4.62 m∠A = 22° m∠B = 68°
Step-by-step explanation:
Tan A = 1.7/4.3 = .39534...
m∠A = arctan .39534... ≅ 22°
m∠B = 90 - 22 = 68°
AB = [tex]\sqrt{1.7^{2} + 4.3^{2} } = \sqrt{2.89 + 18.49} = \sqrt{21.38} = 4.62[/tex]
i need help i will mark u brainlest
Answer:
3rd one
Step-by-step explanation:
12 (3 + 4) =
36 + 48
0.84
123 + 124
15 + 16
Why thank you for helping me and I will mark brainliest if you’re right :)
Answer:
Choice #1) 4.7 cm
Step-by-step explanation:
circumference of full circle = 2(r)(3.14)
a full circle would be = 2(3)(3.14) = 18.84 cm
It is 1/4 circle so 18.84/4=4.7 cm
Answer:
10.7
Step-by-step explanation:
1. I first grabbed a ruler to measure the other straight side of the figure.
2. Both of the straight sides were 3 cm so I knew that the answer had to be greater than 6 cm.
3. I then estimated that the other side was longer than the 3 cm.
4. I then had to my logic to figure out the answer and I very quickly realized that 4.7 cm would not make since because that is less than 6 cm. I know 7.7 cm would not make since because I knew the curved side was longer than 3 cm not shorter. 18.8 cm did not make since because that answer has WAY to much cm. Using the process of elimination, 10.7 cm was the only answer that made since.
Solve: 2x + 3y = 1
y = -23 +11
Answer:
x = 18.5
y = -12
Step-by-step explanation:
First, solve y:
y = -23 + 11
y = -12
Then, solve the main problem:
2x + 3y = 1
(Substitute y)
2x + -36 = 1
2x - 36 = 1
2x = 1 + 36 = 37
x = 37 / 2
x = 18.5
write a story problem that can be represented with the following equation:
8x + 3 = 27
Answer:
Not sure if this works but here you go
Step-by-step explanation:
Junko spends 27 dollars on bananas the tax is 3 dollars and each banana is 8 dollars how many bananas did junko buy
Answer:
read below
Step-by-step explanation:
A pack of pens costs 8 dollars at the store. you decide to buy three packs of them the tax is three dollars. so your total is 27 dollars.
alternatively:
You have 27$ to spend on pens. you know the tax will be 3$, and that each pack of pens costs 8$. what is the maximum amount of packs of pens you can buy?