Answer:
20
Step-by-step explanation:
420-400=20
Write an equivalent expression to
3² x 15 x 54
Equivalent Expression: 9x + 15x = 54
Step-by-step explanation:
First, yo would do 3^2 which is 3 times 3 equals 9.
So, it would be 9x + 15x = 54
Then, you combine like terms, 9x + 15x
So 9+15= 24x
Last, would be 54 = 24x
divide by 24 onto both sides and then x will be by itself and then it will give you an answer.
Answer: 2.25
Find the solution set of the inequality
8x−8≤−72.
Answer:
x≤-8
Step-by-step explanation:
When solving 8x-8≤-72, first add 8 to both sides of the inequality.
This leaves you with 8x≤-64.
Divide both sides by 8: 8x/8 and -64/8
This leaves you with x≤-8 as your solution.
The time t required to do a job varies inversely as the number of people working. It takes 4 hr for 7 cooks to prepare the food for a wedding rehearsal dinner. How long will it take 8 cooks to prepare the dinner?
9514 1404 393
Answer:
3 1/2 hours
Step-by-step explanation:
If there are 8/7 times as many cooks, it will take 7/8 the amount of time. (That's what "inversely proportional" means.)
(7/8)(4 h) = 28/8 h = 3 1/2 h
It will take 8 cooks 3 1/2 hours to prepare the dinner.
please help me and show your work ill mark you brainliest
Answer: there is no solution
Step-by-step explanation: 1/4z — 13 is not the same as 1/4 + 13
Say z = 1 that would simplify as -12 3/4 = 13 1/4 they are not the same so there is no solution
what is the volume of the prism
Answer:
36 unit cubed
Step-by-step explanation:
V = b * h * l
V = 6 * 3 * 2
V = 36
Which could be an appropriate description? (A. the circumference of a circle in square inches) (B. the lateral area of a cylinder in meters) (C. the rate of gasoline consumption in gallons) (D. the volume of a cone in cubic feet)
Answer:
(D. the volume of a cone in cubic feet)
Step-by-step explanation:
A should be inches, not square inches
B should be square meters, not meters
C should be miles per gallon (or KM per gallon), not just gallons
Dr. Howser recently purchased two new fish tanks (Tank A and Tank B) to place in the waiting area of his office. Each fish tank holds exactly 120 gallons of water. Tank A will hold small fish and Tank B will hold large fish. Dr. Howser plans on buying 3 small fish for every 10 gallons of water in Tank A. He plans on buying 6 large fish for every 40 gallons of water in Tank B.
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need help with 2 look at the Photo
Answer:
x = 15
Step-by-step explanation:
x + 2y = 37
x - y = 4
x + 2y = 37
2x - 2y = 8
3x = 45
x = 15
Which one of these represents the graph in this picture right here ? A,B,C,D,E or F?
PLEASE HELP
Answer:
A) y=3x+1
Step-by-step explanation:
Use the formula y=mx+b
m is the slope and b is the y intercept
the graph starts on 1 on the y axis so you replace 1 for b
the slope goes up 3 and over one, giving the fraction 3/1 or just 3. so you replace 3 for m.
If anyone can help and could you put the work as well
Answer:
there ya go bud hope this helps
sin x =
cos x =
tan x =
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
so Sin(x) = d/f
Cos(x) = e/f
Tan(x) = d/e
got it? :)
Answer: sin= d/f
cos= e/f
tan= d/e
Step-by-step explanation:
Identify the coefficients in the expression 4a + 15-3k *
could someone give me the equation? no need to solve
Answer:
I think the equation would be 345 = 121 + p
Help me with number 6, 7, 8, and 9 please
Answer:
6. the table shows exponential growth.
7. the initial value is 3
8. im not sure about this
9. 0.25 or 25%
On a 24 hour digital clock displaying hours, minutes and seconds, how
many times in each 24-hour period do all six digits change
simultaneously?
Answer:
23 times. Last second of every hour.
On 24 hours, a digital clock displaying hours, minutes, and seconds all six digits change 23 times simultaneously.
Change of digits:The digits representing the seconds on the clock change for every second.
The minute digits change for each minute that is for every 60 seconds.
Similarly, the digits representing the hours on the clock change every 60 minutes.
This means that for all the six digits to change simultaneously, the last second must be such that it completes a minute, and the last minute should be such that it completes an hour.
This means that at the end of every hour, all the six digits change.
Which will happen 23 times for a 24 hours clock.
Learn more about digital clock:
https://brainly.com/question/12073969?referrer=searchResults
82% of what number is 492?
answer
600
Step-by-step explanation:
Step 1: If 82% of a number is 492, then what is 100% of that number? Setup the equation.
492/82%=Y/100%
Step 2: Solve for Y
Using cross multiplication of two fractions, we get
82Y = 492 x 100
82Y = 49200
Y=49200100=600
Find the distance d between 21 = (-7 - 6i) and Z2 = (-15 – 12i). Express your answer in exact terms and simplify, if needed.
Answer:
10
Step-by-step explanation:
The distance is equal to the modulus of Z1-Z2.
[tex]Z_1 - Z_2 = -7 - 6i - (-15 - 12i) = 8 + 6i\\|8 + 6i| = \sqrt{8^2 + 6^2} = \sqrt{64 + 36} = \sqrt{100} = 10[/tex]
Kristy rides 6 miles on her bicycle in 40 minutes. Jax rides 4 miles on his bicycle in 30 minutes?
In ΔEFG, g = 6.1 cm, f = 7.3 cm and ∠F=69°. Find all possible values of ∠G, to the nearest 10th of a degree.
Answer:
51.3
Step-by-step explanation:
At Bike Shop X it costs $2.75 per hour plus a $3.00 deposit to rent a bike. At Bike Shop Z
it costs $1.75 per hour plus a $7 deposit to rent a bike. When would it cost less to rent a bike
from Bike Shop X? Explain.
Answer:
ok so you see that right away bike shop x is more cost than bike shop z so if you add 2.75 and 3 dollars it would cost 5.75 dollars of course the cost of 2.75 dollars is per hour so you would need to count 2.75 per hour and as you bike shop z the amount of cost per hour is 1.75 but the deposit fee is 7 dollars so the cost would be 8.75.
Step-by-step explanation:
Ok why it is lower cost because as you see each hour on shop x it is 2.75 and each hour in z shop it is 1.75 why z shop is lower because x shop have bigger cost per hour and that can add up more than z shop.
Product Rule states: keep the base the same and do this to the exponents. Your
A). answer
B). multiply
C). subtract
Answer: B multiply
Step-by-step explanation:
4) A dozen cookies cost $18.75. Twenty cookies cost $25.50. Which has the lower unit price?
ROUND YOUR ANSWER TO THE NEAREST HUNDREDTHS. *
Answer:
Twenty cookies deal
Step-by-step explanation:
A dozen cookies cost 18.75. A dozen is exactly 12. If you divide 18.75 by 12 you should get the unit price which is about $1.56 for each cookie. For 25.50 you just divide it by 20 and you should get about 1.20 which makes it a better deal.
Which of the following ordered pair could NOT be included in this set if it is a function?
{(-4, 2), (3, 6), (4,3), (x, y) }
A (x, y) = (-3, 6)
B (x, y) = (1, 2)
C (x, y) = (3,6)
D (x, y) = (4, -3)
Answer:
B is the right answer and if you add
Ms. Rhodes purchased 8 pounds of potatoes for $18.08. At this rate, what is the cost per pound of potatoes? Use a proportion to solve. include how you did this work <3
Answer:
$2.20
Step-by-step explanation:
If you do long division you get 2 dollars as total with a decimal of 20 do that's your answer.
Answer:
The cost per pound of potatoes is $2.26.
Step-by-step explanation:
You have to divide the total cost by the total pounds.
So in this case, the total cost is $18.08.
There is a total number of 8 pounds.
So you do:
$18.08 / 8 pounds
=
$2.26/lb of potatoes
I hope this helps you on your journey to success!
And if you may mark me Brianliest, I will appreciate a whole bunch!
How many edge does the following shape have
Answer:
8
Step-by-step explanation:
Answer:
12 edges
Step-by-step explanation:
It might help to drag your finger along the edges in the image. Think about it as if you had to make this image out of sticks. How many sticks would you need to make a standing frame like this one?
12 sticks
Which expression is equivalent to -4(7-2m)+11m
answer choices:
a. 19m
b. -28+19m
c. -28+3m
d. -9m
I NEED HELP ASAPPP
please give me a correct answer!!
Answer:b
Step-by-step explanation:
pls help !!
For the triangle shown below, complete the following table.
Note: Use slash (/) to separate numerator and denominator
sin A
sin C
cos A
cos C
Answer:
Cos=C
Step-by-step explanation:
Fax cause triangle=45 angle so 45/5=8
Please tell me the answer!! I NEED IT NOW ILL GIVE 20 points PLEASE!!
Answer:
i pretty sure its the last one
Step-by-step explanation:
Answer:
what chu say?
Step-by-step explanation:
subtract 8xy+3 from 15xy +9
Answer:
7xy + 6
Step-by-step explanation:
=> here's your solution
=>. we need to subtract (8xy + 3) from
( 15xy +9 )
=> (15xy + 9) - ( 8xy + 3)
=>. 15xy + 9 - 8xy - 3
=> 15xy - 8xy + 9 - 3
=>. 7xy + 6
hope it helps
Find cos 0, where 0 is the angle shown.
Give an exact value, not a decimal approximation.
Answer:
8/17
Step-by-step explanation: