Answer:
x=8
Step-by-step explanation:
4(2x-5)=5x+4
Distribute
8x -20 = 5x+4
Subtract 5x from each side
8x -20 -5x = 5x+4-5x
3x-20 = 4
Add 20 to each side
3x-20+20 = 4+20
3x = 24
Divide by 3
3x/3 =24/3
x=8
Please explain . . .
Answer:
9
Step-by-step explanation:
[tex]05 \times 2. \div 2[/tex]
the cost of a DVD is $29.95. Sales tax is 6%. About how much will the DVD cost, including tax?
Answer:
31.75$
Step-by-step explanation:
To add sales tax, you multiply the amount you start with by 1 + what the tax is.
In this case, you multiply 29,95 by 1.06%.
29.95 × 1.06% = 31.747 or 31.75$
Answer:
30.01
Step-by-step explanation:
29.95+6%= 30.01
braiblest plz:)
hope this helps
What is 69.15 rounded to the nearest hundredth
Answer:
69.15Step-by-step explanation:
69.15 rounded off to the nearest hundredth is 69.15...
Solve the math problem
Answer:iqual like 12
Step-by-step explanation:xD i think :/
simplify the following expression
Answer:
x^4/64y^10
Step-by-step explanation:
Answer:
=4
Step-by-step explanation:
823 can be written as
3√82
=3√64
=3√(4)(4)(4)
=4
Given that the Grand Canyon is 6001 ft deep, approximately how long would it take for the apple to reach the
bottom of the canyon?
O 8.6 seconds
O 20.7 seconds
O 41.0 seconds
o 12.9 seconds
Answer:
I don't know what to do with it
Someone PLZ answer this I willl give brainliest
Answer:
8
1
1/2
20
Step-by-step explanation:
hope helful plsgive brainliest
Answer:
[tex]\frac{1}{2}[/tex] is the 3rd one 1 is the last one 20 is the first one 8 is the second one
Step-by-step explanation:
A hot air balloon rose between 1 and 1 feet each second. Which is the best
estimate for the altitude of the balloon after 26 seconds?
[A] 65 feet
[B] 20 feet
[C] 55 feet
[D] 40 feet
Answer:
i think the best estimate is answer b
Step-by-step explanation:
Someone pls help me :c tysm if u do :))
Answer:13
Step-by-step explanation: Your going up on the number line.
Hope I was able to help! :)
evaluate and simplify the expression when x=3 and y =5 2y + 3(x-y) + x^2=
is -3.625 a irrational number
Asia is a chef in a restaurant. To prepare for dinner service, she chops
onions in
of an hour. What is Asia's rate of chopping in onions per hour?
Answer:
135 onions
Step-by-step explanation:
bc
7 1/2 = 15/2
15/2 x 3 = 45/2
45/2 = 22.5
bc its only 1 of 6 pieces, you have to multiply 22.5 by 6
22.6 x 6 = 135
0.13391963118/17(3.78)
Answer:
Simplify the expression.
0.02977742
Step-by-step explanation:
i think i hope its right
I need some help with this thank you!
For part A, x equals 0.
Therefore (7²)⁰=7⁰=1
For part B, x could be any number because 0 multiplied by any number equals 0. eg. (7⁰)⁹=7⁰=1
Hope this helps!
There are 20 marbles in a bag. 16 are red. The remaining are white. What is the probability of selecting a red marble
Answer:
40% is the probability
Step-by-step explanation:
An oil tanker can be emptied by the main pump in 5 hours. An auxiliary pump can empty the tanker in 7 hours. If the main pump is started at 7 PM, when should the auxiliary pump be started so that the tanker is emptied by PM?
Suppose you have entered 103 -mile biathlon that consists of a run and a bicycle race. During your run, your average velocity is 5 miles per hour, and during your bicycle race, your average velocity is26 miles per hour. You finish the race in 8 hours. What is the distance of the run? What is the distance of the bicycle race?
Answer:
so the answer will be 1
Step-by-step explanation:
An oil tanker can be emptied by the main pump in 5 hours.
An auxilary pump can empty the tanker in 14 hours.
If the main pump is started at 7pm, when should the auxilary pump be started
so that the tanker is emptied by 11pm?
:
Let t = no. of hrs to run the Aux pump
:
The main pump will run 4 hr (7 - 11 pm)
:
Let the completed job = 1; (an empty Tanker)
:
The shared work equation
4%2F5 + t%2F14 = 1
Multiply equation by 70 to get rid of the equation, results:
14(4) + 5t = 70
56 + 5t = 70
5t = 70 - 56
5t = 14
t = 14%2F5
t = 2.8 hrs to run the aux pump
:
2.8 hr = 2 + .8(60) = 2 hrs 48 min
:
Subtract 2:48 from 11:00 = 8:12 PM start the aux pump
;
;
Check solution
4/5 + 2.8/14 =
.8 + .2 = 1
f(x)=3x-7 input is 3
Answer:
The answer is f(x)=2
Step-by-step explanation:
When the input is given it means that the x is substituted by that number.
so 3x3-7.
3x3-7
9-7=2.
The f of x is equivalent to 2.
I hope this helps :D
)) A rectangle has an area of 117.8 square kilometers and a height of 9.5 kilometers. What
is the length of the base?
kilometers
Answer:
yes you use kilometers
Step-by-step explanation:
Alycia tried to prove that \triangle OPQ\cong \triangle STR△OPQ≅△STRtriangle, O, P, Q, \cong, triangle, S, T, R. Statement Reason 1 OP=ST=4OP=ST=4O, P, equals, S, T, equals, 4 Given 2 \overleftrightarrow{OP}\parallel\overleftrightarrow{ST} OP ∥ ST O, P, with, \overleftrightarrow, on top, \parallel, S, T, with, \overleftrightarrow, on top Given 3 \angle O\cong\angle S∠O≅∠Sangle, O, \cong, angle, S When a transversal crosses parallel lines, alternate interior angles are congruent. 4 \triangle OPQ\cong \triangle STR△OPQ≅△STRtriangle, O, P, Q, \cong, triangle, S, T, R Side-angle congruence What is the first error Alycia made in her proof? Choose 1 answer: Choose 1 answer: (Choice A) A Alycia used an invalid reason to justify the congruence of a pair of sides or angles. (Choice B) B Alycia only established some of the necessary conditions for a congruence criterion. (Choice C) C Alycia established all necessary conditions, but then used an inappropriate congruence criterion. (Choice D) D Alycia used a criterion that does not guarantee congruence.
Answer: D-Alycia used a criterion that does not guarantee congruence
Step-by-step explanation:
Bob spent x amount on food. Bill spent x+20, and John spent 3x-2. If bill and John spent the same amount of money, how much dud bob spend?
[tex]\\ \sf\longmapsto x+20=3x-2[/tex]
[tex]\\ \sf\longmapsto 3x-x=20+2[/tex]
[tex]\\ \sf\longmapsto 2x=20[/tex]
[tex]\\ \sf\longmapsto x=10[/tex]
Bob spent 10$
use factor trees to find the GCF of 15, 25 show your work
Answer:
The Greatest Common Factor of
15
and
25
is
5
.
The factors of
15
are
3
and
5
(the number itself and 1 do not count).
The factor(s) of
25
is
5
. After all, it is a square number.
The only factor that is in common is
5
(again remember that 1 does not count here -although
1
is common,
5
is higher)
Hope I helped!
Step-by-step explanation:
Help please!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
6) At y-intercept , x = 0
So, y-intercept = 3
5) Slope = Change in y/ change in x
[tex]= \dfrac{3-1}{0-[-3]}\\\\= \dfrac{2}{0+3}\\\\= \dfrac{2}{3}[/tex]
Solve 2x-5<5x-22 show steps
What are the domain and range of the function f(x)=3 over 4 x+5
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values.
Step-by-step explanation:
PLEASE HELP FAST WILL MARK BRANLIEST!!
Which is the graph of y = 2(x - 3)2 + 2
The graph will look like this
Mable earns $180 in 18 hours. at this rate how many dollars will she earn in 30 hours
Step-by-step explanation:
18 hours = $180
1 hour = 180/18 = $10
so 30 hours = 30 × 10 = $300
please give me a brainliest answer
Identify the subsets of real numbers of which 8 is a member. ( helps pls ^-^ )
The real numbers have the following important subsets: rational numbers, irrational numbers, integers, whole numbers, and natural numbers.
8 is an a integer, a whole number and a rational number.
Hope this helps,
if so mark brainliest...
O Domingos tinha certa quantia em dinheiro, foi ao centro comercial e gastou 1/3 da quantia na compra de uma revista, gastou 1/4 da quantia na compra de um CD e ainda ficou com 25 mil kzs. Qual era a quantia que Domingos possuía?
Answer:
English
Step-by-step explanation:
Slope -3/4 and passes through the point (-3, -8). What is the point slope form
Point-slope form is: y - y1 = m ( x - x1 )
You plug in your slope for m and the x and y values from that point for x1 and y1.
y - (-8) = -3/4 ( x - (-3) )
Be sure to clean up the "minus a negative" to get
y + 8 = -3/4 ( x + 3 )
A company makes a profit of $1.38 million. This is $2.54 million more than last year. What was the profit last year?
The answer also asks for us to fill in the blank; "The profit last year was $__ million, so I need help filling in the blank.
The "million" part is already taken care of by your teacher.
====================================================
Explanation:
x = profit last year (millions of dollars)
x+2.54 = profit this year, which is 2.54 million more than last year
x+2.54 = 1.38
x = 1.38-2.54
x = -1.16
The profit last year was -1.16 million dollars
This is the same as writing -1,160,000 dollars of profit.
A negative profit indicates that the company lost money. This is when the company is spending more than what they earn (i.e. they are in some kind of debt).