Answer:
5.60
Step-by-step explanation:
20% of 10 = 2 he gave 2 dollars to his sis
2 - 10 = 8 now lucas has 8 dollars
30% of 8 = 2.4 he gave 2.40 dollars to his bro
2.4 - 8 = 5.6
now he has 5 dollars and 60 cents
give me brainlest pls pls pls :>
Answer:
5.60
Step-by-step explanation:
a research lab is to begin experiments with a bacteria that doubles every 4 hours. the lab starts with 200 bacteria. a. how many bacteria will be present at the end of 12th hour? b. how many bacteria will be present at the end of one day? please answer this
Answer:
A) 1600 bacteria
B) 12800 bacteria
Step-by-step explanation:
We are told that the bacteria doubles every 4 hours.
Now, if the amount of bacteria is X, it means that for 4 hours, it becomes 2X and after 8 hours it becomes 2(2X)
For 12 hours, it becomes; 2 × (2(2X))
This means that for 12 hours, it becomes 2 × (2(2X)) = 8X
A) Since the lab starts with 200 bacteria, after 12 hours, it has;
N_12 = 8 × 200.
N_12 = 1600 bacteria
B) From above, we have seen that after t hours, where t is a multiple of 4, the number of bacteria is;
N_t = [2^(¼t - 1)] × (2X)
Where X is initial amount of bacteria.
Thus, after a day which is 24 hours, we have;
N_24 = 2^(¼(24) - 1) × 2X
N_24 = 2^(5) × 2X
Where X is 200, N_24 = 32 × 2(200) = 12800 bacteria
⚠️ IM DESPERATE ⚠️⚠️ please help me
Answer:
B (0, 1)
Step-by-step explanation:
(I’m not 100% sure about this)
Answer:
B. (0,1)Step-by-step explanation:
Use the slope-intercept form to find the slope and y-intercept.
The slope-intercept form is y = m x + b , where m is the slope and b is the y-intercept.
y = m x + b
Find the values of m and b using the form y = m x + b .
m = 1
b = 1
The slope of the line is the value of m , and the y-intercept is the value of b .
Slope: 1
y-intercept: 1
Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.
Choose 0 to substitute in for x to find the ordered pair.
Replace the variable x with 0 in the expression.
f ( 0 ) = ( 0 ) + 1
Simplify the result.
Add 0 and 1 .
f ( 0 ) = 1 The final answer is 1 . 1
The y value at x = 0 is 1 .
y = 1
Choose 1 to substitute in for x to find the ordered pair.
Replace the variable x with 1 in the expression.
f ( 1 ) = ( 1 ) + 1
Simplify the result.
Add 1 and 1 .
f ( 1 ) = 2
The final answer is 2 . 2
The y value at x = 1 is 2 .
y = 2
Create a table of the x and y values.
x : 0,1
y: 1 ,2
Graph the line using the slope and the y-intercept, or the points.
Slope: 1
y-intercept: 1
x : 0,1
y : 1 ,2
Alex chose a pair of jeans that sells for $19.50, but today all jeans are on sale for 10% off. How much will Alex save. Explain your answer.
Answer:
He saves $1.95. Instead of paying $19.50, He pays $17.55
Step-by-step explanation:
$19.50 ×10/100 = $1.95
That is the discount of the jeans. Taking
$19.50 - $1.95 = $17.55
A bakery sells 3642 pastries in 2010. The bakery sells 8422 pastries in 2015. Write a linear model that represents the number y of pastries that the bakery sells x years after 2010
Answer:
y = 936x + 3742
Step-by-step explanation:
If it is a linear model, then we should have a slope and y-intercept with the equation representing the model as;
y = mx + c
where m is the slope and c is the y-intercept
Thus, we have for the slope;
(8422-3742)/(2015-21010) = 4680/5 = 936
So the equation will be;
y = 936x + c
To get c , we can use the years after 2010 which is 2015 in this case
8422 = 936(5) + c
c = 8422- 4680
c = 3742
So the linear model is;
y = 936x + 3742
HELP ME ASAP PLZ !!!!!!!
Answer:
0.5 × 10^7
Step-by-step explanation:
1.6 divided by 3.2 =0.5
10 to the power or 14 minus 10 to the power of 7 = 10 to the power of 7
in division you must subtract the power number
Answer: C. 5.0 * 10^6
Step-by-step explanation:
1.6(10^14)
3.2(10^7)
=
(1.6)(100000000000000)
3.2(10^7)
=
160000000000000
3.2(10^7)
=
160000000000000
(3.2)(10000000)
=
160000000000000
32000000
=5000000 =
5*10^6
There is 3/4 of a box of cereal remaining. You eat 2/5 of the remaining cereal. What fraction of the box do you eat? Hint: What mathematical operation does the word “of” mean?
the answer must be a fraction
Answer:I think it’s 7/20
Step-by-step explanation:
What is the square root of 1,567?
Answer:
39.585
Step-by-step explanation:
Is this correct or wrong?
Answer:
It is correct :)
Step-by-step explanation:
I need help on this one
Answer:13.7
Step-by-step explanation:
The question is asking us to build an algebraic model of this question, to do this, we need to use the slope intercept form.
Let's first identify the known data. We know that a pizza with two toppings is 9.95. In addition, we know that a topping itself is 1.25. We need to find the y intercept first in order to solve this equation, therefore we need to find how much a pizza his without the two toppings. So, we do 1.25(2)=2.5 and subtract it from 9.95. 9.95-2.5= 7.45. Now, this is our y intercept, because this will always stay the same and this is where we always start off. The slope itself however will be 1.25x, because x is the amount of toppings. So, as of now, we have constructed our equation
y=1.25x+7.45
We are looking to see how much a pizza is with 5 toppings, so we plug 5 into x
y=1.25(5)+7.45= 13.7
3. Flyn is ordering t-shirts for all 8th graders at his school: T-shirts R-Us charges
$6.25 per shirt with a one-time embroidery fee of $19. T-shirts Galore charges
$4 75 per shirt with a one-time embroidery fee of $43. Which inequality can be
used to find x, the minimum number of shirts that can be ordered so that the total
charge at T-shirts R-Us is less than the total charge at T-shirts Galore?
A. 6.25 + 19x < 4.75 + 43x
B. 6.25x + 19 < 4.75 + 43x
C. 6.25 + 19x < 4.75x + 43
D. 6.25x + 19 < 4.75x + 43
Answer:
the answer is a
Step-by-step explanation:
Simplify 123 over 3
Answer:
The answer is 41
Step-by-step explanation:
Answer: 123/3 simplified is 41 or 41/1
Step-by-step explanation:
Sketch a 9 red counters and 4 yellow counters.How many zero pairs can you make?How many counters do you have after you remove the zero pairs? What do they represent
Answer:
36.75 and 1/6 ( 6 accounts equally distributed )
Step-by-step explanation:
Number of Red counters to be sketched = 9
Number of Yellow counters = 4
The number of Zero pairs that can be made = 36.75
When you remove the Zero pairs the number of counters you would have = 6 accounts ie. 1/6
is 10.6 greater than 10.600
Answer:
no its the same value
Step-by-step explanation:
The back to back stem plot below shows the heights (in centimeters) of the players on the University of
Maryland women's basketball and field hockey teams.
Basketball
team
Field hockey
team
15
7 7 7 7 7
5
16
0 0 3 3 3 3 3 3 5 5 5 8 8 8 8
5 2 0
17
0 0 2 2 8
8 8 3
18
3 3 1 1
19
3
20
Key : 178 = 178 cm
Answer:
Im bored wanna talk?
Step-by-step explanation:
The momentum of an object, p, is determined by its mass, m, and its velocity, v. The formula for this relationship is shown.
P=mv
Which equation shows the formula correctly solved for v?
A. V=m/p
B. V=p/ m
C. V= p-m
D. V=pm
Answer:
b
Step-by-step explanation:
I know it's simple but I really cant think right now what is 2/5 multiplied by -5/4
Answer: -1/2
Step-by-step explanation:
:)
Determine if the figures below are congruent? Explain why or why not. I need it for a test please answer fast!
Answer:
Yes they should be congruent ones just at a different angle.
Step-by-step explanation:
what do racecar drivers like to do
They like to flip over and set their car on fire
In general, racecar drivers like to engage in activities related to speed, adrenaline, and competition both on and off the race track.
Racecar drivers have a passion for speed and competition, which extends beyond their time on the track. When not racing, many of them enjoy activities that provide an adrenaline rush, such as go-karting, motocross, or other extreme sports. Staying physically fit is crucial for their performance, so they often participate in rigorous training, including cardio workouts, strength training, and reflex drills.
Additionally, they may spend time honing their racing skills through simulators or practice sessions on race circuits. Away from the track, some drivers may have interests in classic cars, car collecting, or automobile engineering. Their lifestyle revolves around the excitement of racing and everything associated with it, both professionally and recreationally.
To know more about racecar drivers , click here.
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------------The given question is incomplete, the complete question is:
"What do race car drivers like to do in general?"-----------------
are these two photos the same? or is there a difference?
Answer:
Yes on one picture it says -40 and on the other one it says -4 so there is a differemce.
Step-by-step explanation:
Felicia has grown five pumpkins. The first is 25.34 pounds. The second
weighs 10.23 pounds less than the first. Both the third and fourth pumpkin
are 13.2 pounds. If the combined weight of the pumpkins is 71.87 pounds,
how much does the fifth pumpkin weigh?
Answer:
5.02
Step-by-step explanation:
Neil's bank offered him a 4.95% interest rate for his mortgage. If he
purchases 3 points, what will his new rate be?
O A. 0.375%
O B. 4.575%
C. 1.75%
O D. 4.375%
Neil's new interest rate after purchasing 3 points would be 7. 95%. The closest option is B. 4.575%.
How to calculate the interest rate?To calculate the new interest rate after purchasing points, we need to know the cost of one point and the number of points purchased.
One point typically costs 1% of the mortgage amount, so three points would cost 3% of the mortgage amount. The cost of the points is usually paid upfront at closing.
Assuming Neil's mortgage amount is $100,000, the cost of 3 points would be:
3% x $100,000 = $3,000
To calculate the new interest rate, we need to add the cost of the points to the original interest rate and then recalculate it as a percentage:
New rate = Original rate + (Cost of points / Mortgage amount)
New rate = 4.95% + ($3,000 / $100,000)
New rate = 4.95% + 3%
New rate = 7.95%
So, Neil's new interest rate after purchasing 3 points would be 7. 95%. The closest option is B. 4.575%.
To know more about interest rates follow
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y=6(x-7)(x+2) standard form
Answer:
y=6x^2-30x-84
Step-by-step explanation:
What method of characterization does the following character description use?
Oh! But he was a tight-fisted hand at the grindstone, Scrooge! a squeezing, wrenching, grasping, scraping, clutching, covetous, old sinner! Hard and sharp as flint, from which no steel had ever struck out generous fire; secret, and self-contained, and solitary as an oyster. The cold within him froze his old features, nipped his pointed nose, shrivelled his cheek, stiffened his gait; made his eyes red, his thin lips blue; and spoke out shrewdly in his grating voice. A frosty rime was on his head, and on his eyebrows, and his wiry chin. He carried his own low temperature always about with him; he iced his office in the dog-days; and didn’t thaw it one degree at Christmas. from:
Answer:
The author is intending the character to be mean, old, and snobby. He also hates Christmas
Step-by-step explanation:
He does this by comparing the character to other objects.
Find m and b in the following equations.
What do m and b represent?
a.
y= 2x +1
b. y=zx-4
Answer:
Step-
by-step explanation:
What is the slope of this line?
−3
3/4
4
−3/4
Number graph ranging from negative 5 to 5 on both the x and y axis. A line passes through the point begin ordered pair 0 comma 2 end ordered pair and the point begin ordered pair 4 comma negative 1 end ordered pair
A right triangle has leg lengths of 3.4 cm and 6.7 cm. Which answer below shows the length of the triangle’s hypotenuse rounded to the nearest tenth?
A. 8.5 cm
B. 7.5 cm
C. 5.5 cm
D. none of the above
Answer:
D
Step-by-step explanation:
The hypotenuse squared is equal to the sum of the legs squared in a right triangle.
∴ c² = a² + b² (Pythagorean’s Theorem)
c² = 3.4² + 6.7² (substitute the given values for a & b)
c² = 11.56 + 44.89 (square both right hand terms)
c² = 56.45 (add the right hand side values)
c = √56.45 (square root of both sides)
c ≈ 7.5 to the nearest tenth QED
guys i need helppppppp
please
helppp
Answer:
11
Step-by-step explanation:
6-1+6= 11
I hope this helps.Answer:
A
Step-by-step explanation:
It is A because all you have to do is plug it in
So, 6-1=5
and 5+6 is 11
So this is your answer Hope this helps.
If the vertex form of a
quadratic equation is y = (x -
7)^2-4, what are the zeros and
the coordinate of the y-
intercept? *
Answer: x = {5, 9} ; (0,45)
Brainliest!!! Answer quick
Answer: 1mi/5280
Step-by-step explanation: I dunno how to explain this. Its really easy. Always have the converting unit on the denominator
A local fun park charges an admission fee plus a fee for each Go-Kart ride. Admission plus five
go-kart rides is $16.25. Admission plus three rides is $12.25. What is the charge for each Go-
Kart ride?
HELPPPPPPP PLEASE
The admission price is $6 and the rides are $2 each.