Answer:
24 hours
Step-by-step explanation:
Divide 200 by 5.50
200÷5.50=36.36 (round to the nearest decimal)
Divide 68 by 5.50
68÷5.50=12.36 (round to the nearest decimal)
So if he worked 12.4 hours to gain $68,
We then can minus 12.4 from 36.4
36.4-12.4=24
He will need to work 24 more hours in order to have enough money
consider this equation. 7.8+2(0.75m+0.4)=-6.4m+4(0.5m-0.8) Mia solved the equation and determined that m=2. Is she correct?
A She is incorrect because when substituting 2 for m the result was a true statement.
B She is incorrect because when substituting 2 for m the result was a false statement.
C She is correct because when substituting 2 for m the result was a true statement.
D She is correct because when substituting 2 for m the result was a false statement.
Answer:
B) She is incorrect because when substituting 2 for m the result was a false statement.
Step-by-step explanation:
Let's solve it for ourselves and see if Mia is correct:
7.8+2(0.75m+0.4)=-6.4m+4(0.5m-0.8)
7.8+1.5m+0.8=-6.4m+2m-3.2
1.5m+8.6=-4.4m-3.2
8.6=-5.9m-3.2
11.8=-5.9m
-2=m
m=-2
Since the answer is actually m=-2, Mia's guess is incorrect because plugging in m=2 does not make both sides equal. Therefore B is the correct option.
Solve for x. Your answer must be simplified.
-3
Answer:
7 < x
Step-by-step explanation:
-3< x-10
-3+10 < x -10+10
7< ×
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Help please!!!!!
Geometry
Answer:
E.
Step-by-step explanation:
E gets prio rather than D & F, so E is the first letter. after that, D has more prio than F. so the answer is EDF.
PLS I NEED HELP ILL MARK AS BRAINLIEST
Work out the outer surface area of this open top cylinder.
Give your answer in terms of Pi
6m
10m
Answer:
Surface Area open top S = 156 π m²
Step-by-step explanation:
Explanation : -
Given radius of the cylinder 'r' = 6m
Given height of the cylinder 'h' = 10 m
Surface area of the open cylinder
[tex]S = 2 \pi r h + \pi r^{2}[/tex]
S = 2 π ( 6 ) ( 10 ) + (π ) (6 )²
S = 120 π + 36 π
S = 156 π m²
deshaun made $289 for 17 hours of work at the same rate how much would he make for 11 hours or work
Answer:
$187
Step-by-step explanation:
289/17 = 17
Hourly = $17
17 × 11 = 187
Answer = $187
The integer to represent a gain of 9 pounds would be?
-9
+9
Answer: yup! The integer to represent a gain of 9 pounds would be -9 +9
Step-by-step explanation:
Answer:
+9 is the answwer
Step-by-step explanation:
bcz it is gaining a pound
The coordinates of segment AB are A(-2,5) and B(6, 1), which of the following is the length of segment AB to the nearest tenth?
Answer:
1 (8.9)
Step-by-step explanation:
Length of AB = [tex]\sqrt{(1-5)^2+(6+2)^2} = 4\sqrt{5} = 8.944....[/tex]
Question
of 6
2. Identify the solution to the system of equations graphed below.
-5 - 4
-5
- 2
2
Back
Answer:
2 jell djeeujdeieuwieue
help due in hour pplease
Answer:
7) 100 cubic inches
3) 254.47 square meters
2) 282.74 yds
4) 5026.54 square feet
Step-by-step explanation:
7) 2x5x10=100 cubic inches
3) 18/2=9
9^2(3.14159)=254.47 square meters
2) 90(3.14159)=282.74 yds
4) 40^2(3.1459)=5026.54 square feet
All I need is 1-4 and please show work.
Answer:
1. -20 is the y intercept
2. 2x+4y=16
2x/2+4y/2=16/2
x+2y=8
x-x+2y=8-x
2y=-x+8
2y/2=-x/2+8/2
y=-x/2+4
4 is the y intercept
3. 2y+3x=7
2y+3x-3x=7-3x
2y=-3x+7
2y/2=-3x/2+7/2
y=-3
x/2+3.5
3.5 is the Y intercept
4. -3 is the y intercept
Step-by-step explanation:
Question 1:
y = -5x - 20
It is already in slope-intercept form, therefore the y-intercept is -20.
When y = 0, -5x - 20 = 0, x = -4.
Hence the x-intercept is -4.
Question 2:
2x + 4y = 16
When x = 0, 2(0) + 4y = 16, 4y = 16, y = 4.
The y-intercept is 4.
When y = 0, 2x + 4(0) = 16, 2x = 16, x = 8.
Hence the x-intercept is 8.
Question 3:
2y + 3x = 7
When x = 0, 2y + 3(0) = 7, 2y = 7, y = 3.5.
The y-intercept is 3.5.
When y = 0, 2(0) + 3x = 7, 3x = 7, x = 7/3.
Hence the x-intercept is 7/3.
Question 4:
It is ambiguous as the line marks on both of the axis are not labelled. However we assume each space is 1 unit.
Reading off the graph,
we have x-intercept is 3 and y-intercept is -3.
15 is the highest common factor of a pair of numbers. which of these is also common factor of this pair of numbers?
a/ 2
b/3
c/cant say untill numbers are known
d/ 30
Answer:
a)2 is the highest common factor of a pair of numbers
Step-by-step explanation:
guys i need help on math plz
Answer:
look at the picture for the answer
did i do this correct and i need help for the last question urgent
Answer:
Correct so far.
The median score must be between positions 32 and 33 on the table.
The median score is 72.
Step-by-step explanation:
Correct so far.
The median score must be between positions 32 and 33 on the table.
The median score is 72.
Can someone help me with this question please ASAP?
Answer:
x = 5.6 or you can write like this: x = 5 3/5
Step-by-step explanation:
Answer:
x=30
Step-by-step explanation:
Set the two angles equal to 180
(5x+1)+29=180
Solve for x algebraically
5x+1=180-29
5x+1=151
5x=151-1
5x=150
x=150/5
x=30
50 Points! Plz Answer quik
What are the 5 steps of writing an algorithm
Answer:
Step 1: Obtain a description of the problem.
Step 2: Analyze the problem.
Step 3: Develop a high-level algorithm.
Step 4: Refine the algorithm by adding more detail.
Step 5: Review the algorithm.
Answer:
Step 1: obtain description of problem
Step 2: Analyze the problem. ...
Step 3: Develop a high-level algorithm.
Step 4: Refine the algorithm by adding more detail. ...
Step 5: Review the algorithm
Step-by-step explanation:
Ikram invests £7000 in a savings account paying compound interest for 2 years.
In the first year, the rate of interest is x%.
At the end of the first year the value of Ikram's investment is £7273
In the second year, the rate of interest is x/3%
What is the value of Ikram's investment at the end of the 2 years?
Answer:
The answer is £7367.55
Step-by-step explanation:
Find the interest.
£7273 - £7000 = £273
Then, find the multiplier for the 1st year.
273/7000 = 0.039
Then, find the multiplier for the next year.
It says it is x/3, with x being the 1st year multiplier, so do 0.039/3 = 0.013
Afterwards, multiply the total money from the 1st year with the 2nd years multiplier.
£7273 x 1.013 = £7367.55
Hope this helps :)
Possible solutions to x>-5 can be -3, 0, 4,
8, and 12.
True
O
False
I NEED HELP
What is the slope of this line?
Answer:
1/2 is the slope
Step-by-step explanation:
How many solutions does the following equation have?
-2z + 10 + 7z = 16z +7
Choose 1 answer:
No solutions
B
Exactly one solution
Infinitely many solutions
Answer:
exactly one solution: 3/11 = z
Step-by-step explanation:
-2z + 10 +7z = 16z + 7
combine like terms
5z + 10 = 16z + 7
-7 -7
5z + 3 = 16z
-5z -5z
3 = 11z
/11 /11
3/11 = z
a bar of steel is 340cm long issa cuts two 55cm lengths of the bar he then cuts the rest of the bar into as many 40cm lengths as possible work out how many 40cm lengths of bar issa cuts
Answer:
the number of 40cm lengths cut is 5.75 pieces
Step-by-step explanation:
The number of 40cm lengths cut is shown below:
= (Length of steel bar - two lengths) ÷ (length)
= (340 cm - 55 cm - 55cm) ÷ (40 cm)
= 230 cm ÷ 40 cm
= 5.75 pieces
Hence, the number of 40cm lengths cut is 5.75 pieces
We simply applied the above formula so that the correct unit could come
Also the same is relevant
6x + 3y = 18
Graphic
Answer:
x and y are two
Step-by-step explanation:
six times two equals twelve and 3 times two equals six and six plus twelve equals 18
Answer: x=-1/2y3
Step-by-step explanation:
Step 1: Add -3y to both sides.
6x+3y+−3y=18+−3y
6x=−3y+18
Step 2: Divide both sides by 6.
6x/6=-3y+18/6
1+4(2x-3)-x math 2 question test is on canvas
I don’t have to explain there’s a picture xD
Answer:
the answer is x=108
25 markers in a bag: 5 red, 5 yellow, 5 blue, 5 green, 5 purple One marker is drawn out of the bag, then put back in. How many times would you expect a blue marker to be picked in 80 draws?
Answer: 16
Step-by-step explanation:
From the question, we are informed that there are 25 markers in a bag: 5 red, 5 yellow, 5 blue, 5 green, 5 purple and that one marker is drawn out of the bag, then put back in.
The probability of picking a blue marker will be: = 5/25 = 1/5
Therefore, the number of times that a blue marker will be expected to be picked in 80 draws would be:
= 1/5 × 80
= 16 times
Answer:
16
Step-by-step explanation:
Given z1 = 2 + sqrt 3i and z2 = 1 – sqrt 3i, what is the sum of z1 and z2?
Answer:
b
Step-by-step explanation:
took test
The sum of z₁ and z₂ is 3.
What are complex numbers?The sum of a real number and an imaginary number is called a complex number. A complex number is usually represented by z and has the form a + ib. Here, both a and b are real numbers. The real part, denoted by Re(z), is represented by the value "a," and the imaginary part, represented by "b," is represented by Im(z). Also known as an imaginary number, ib.
Given z₁ = 2 + √3i,
z₂ = 1 - √3i
to calculate the sum
z₁ + z₂ = 2 + √3i + 1 - √3i
sum of complex number is done by adding real part and imaginary part separately,
+ √3i and - √3i is canceled
z₁ + z₂ = 3 + 0i = 3
Hence the sum is 3.
Learn more about complex numbers;
https://brainly.com/question/20566728
#SPJ2
In the expression
7a + b - 12
what is the coefficient of a?
Which events are independent? Select three options.
Roll a number cube, and then roll the same number cube again.
Flip a coin, and then flip the coin a second time.
Remove a card from a deck, and then remove a second card.
Draw a card from a deck, replace it, and then draw a second card.
Take a marble out of a bag, and then take a second marble out of the bag.
Answer: The first, second, and fourth.
Step-by-step explanation:
1). When you roll a cube twice, the number you get on the first roll doesn’t impact the second. As a result, it’s independent.
2). When you flip a coin twice, what you get on the first flip doesn’t impact what you get on the second. As a result, it’s independent.
3). When you remove a card from a deck, then remove a second one WITHOUT replacing the first, the first card impacts the second draw. For example, when I draw the first card, my chances of drawing a two are 1/13. If I draw a two the first time, my chances of drawing a two the second time are 1/17 (3/51. The total is fifty-one since one card is missing). Since the first draw impacted the probability of the second, the events are NOT independent.
4). When you remove a card, replace it, then draw again, your chances of drawing the same card doesn’t change. For example, my odds of drawing a three are 1/13 (or 4/52). If I draw a three the first time, then put it back and draw again, my odds are still 1/13 because I put the card back in the deck. As a result, the event is independent.
5). If I take a marble from a bag, and then take a second marble, the first draw impacts the second. For example, if a bag has three blue marbles and three green marbles, my chances of getting a blue marble the first time are 1/2 (or 3/6). If I get a blue marble and choose again, WITHOUT replacing it, my chances of choosing another blue marble are 2/5 (since one marble is missing). Since the first draw impacting the probability of the second, the events are NOT independent.
Answer: A, B , D
Step-by-step explanation:
write the linear equation in slope intercept form.
4x+y=1
Answer: y=-4x+1
Step-by-step explanation:
The slope-intercept form of a line is y=mx+b. Therefore, y needs to be on one side of the equation, and the x term and constant need to be on the other. Rearrange the equation to make this true:
4x+y=1
(4x+y)-4x=1-4x
y=1-4x
y=-4x+1
Select all the common denominators for
1
4
and
7
10
.
A.
10
B.
20
C.
24
D.
32
E.
40
Answer:
B.20
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Answer:
B and E
Step-by-step explanation:
