Noah solved three math problems. The first problem took him 1 minute. The second problem took him 30% longer than the first problem, and the third problem took him 50% longer than the second problem. How long did it take Noah to solve all three problems?
How much money do you need to deposit monthly into a college fund for
your new baby in order to have $150.000 by the time they are 18 years
old if you earn 6% annual interest?
Answer:
im guessing its supposed to be 150,000 so it would be $1,656.25 per month
Step-by-step explanation:
The average mark scored by 29 students in a science test was 56%. John was sick, so he sat the test late and scored 71%. Including John's score, what was the new mean mark?
Answer:B
Step-by-step explanation:
What is the answer to 30% of 50?
Answer:
15
Step-by-step explanation:
Use the x method or cris cross
Solve for z.
6z+ 3 - 4z = 9
Answer:
z = 3
Step-by-step explanation:
-3(x-14) + 9x = 6x + 42
Answer:
All real numbers are solutions.
Step-by-step explanation:
Let's solve your equation step-by-step.
−3(x−14)+9x=6x+42
Step 1: Simplify both sides of the equation.
−3(x−14)+9x=6x+42
(−3)(x)+(−3)(−14)+9x=6x+42(Distribute)
−3x+42+9x=6x+42
(−3x+9x)+(42)=6x+42(Combine Like Terms)
6x+42=6x+42
6x+42=6x+42
Step 2: Subtract 6x from both sides.
6x+42−6x=6x+42−6x
42=42
Step 3: Subtract 42 from both sides.
42−42=42−42
0=0
Answer:
all real numbers
Step-by-step explanation:
-3 (x - 14) + 9x = 6x + 42
-3 (x - 14) + 9x - 6x = 6x - 6x + 42
-3 (x - 14) + 3x = 42
-3 (x) - 3 (-14) + 3x = 42
-3x + 42 + 3x = 42
3x - 3x + 42 = 42
42 = 42
Solve the system of linear equations below, using substitution method.
8x + 9y = 36
3x + 4y = 16
0 (0,4)
хо (57.6.-47.2)
0 (4.4137, 2.9396)
O (5.6842,-0.2632)
5
Solve the system of linear equations below, using substitution method.
8x + 9y = 36
3x + 4y = 16
your answer is in attachment....
Determine the simple interest when: principal: $890, interest rate: 4.25%, time: 2 year
explaination ::
principle (p) = $890
rate (r) = 4.25%
time (t) = 2 years
simple interest = (p × r × t)÷100 = (890 × 4.25 × 2)÷100 = $75.65MARK ME AS BRAINLISTPLZ FOLLOW ME1:13 scale model bobble head of you, how tall would it be in centimeters if you are 170.18 cm?
Answer:
13,1cm
Step-by-step explanation:
1 : 13
1 : 170,18cm
170,18cm divided 13 : 170,18cm
13,090cm : 170,18cm
or
13,1cm : 170,18cm
bobble head is
13,1cm
cmiiw!
Please help. I suck at geometry
Answer:
Complementary angle is 90 degree and supplementary angle is 180 degree
2. Mr. C'Quence just wrote a 35-problem test for his math class. He wants some of the problems to be
worth two points each while the rest will be worth three points each. If the test must be worth a total of
100 points, set up a system of equations to determine how many of each type of problem Mr. C'Quence
should have on his test?
Define the variables:
Write the system (but do not solve):
I
What is the value of 15x - 20x?
A. -35x
B. -5x
C. 5x
D. 35x
Answer:
Step-by-step explanation:
15x - 20x = -5x
answer is B
Answer:
Its b
Step-by-step explanation:
Let W represent the number of attempted experiments to get one experiment that is not successful.
The random variable W has a geometric distribution with mean 4 and standard deviation 3.5. Which of the following is the best interpretation of the standard deviation?
A single value randomly selected from the distribution of W will vary 4 by 3.5 attempted experiments. (collegboard)
Answer:
Values of W typically vary from 4 by about 3.5 attempted experiments, on average.
Step-by-step explanation:
Two numbers have a sum of 7. When the smaller number is subtracted from twice the larger number, the result is 20. Which is the following is the larger number.
11
9
15
12
Which is it?
Answer:
9
Step-by-step explanation:
according to the condition it is possible to make up a system of two equations (if to suppose 'l' - the larger number and the 's' - is the smaller one):
1. 'two numbers have a sum of 7' means s+l=7;
2. 'When the smaller number is subtracted from twice the larger number, the result is 20' means 2*l-s=20.
3. the system of two equations is:
[tex]\left \{ {{s+l=7} \atop {2l-s=20}} \right. \ => \left \{ {{s=-2} \atop {l=9}} \right.[/tex]
4. the larger number is 9.
The larger number would be as follows:
[tex]9[/tex]
What are numbers?Let the two numbers (larger and smaller) be [tex]= x ; y[/tex] respectively.
[tex]x + y = 7[/tex]
So, [tex]y = 7 - x[/tex]
Given that,
The Smaller number subtracted from twice large number gives 20. Thus,
[tex]2x - y = 20[/tex]
Putting the value of [tex]y, 2x - (7 - x) = 20[/tex]
[tex]2x - 7 + x = 20[/tex]
[tex]3x - 7 = 20[/tex]
[tex]3x = 27[/tex]
[tex]x = 27 / 3[/tex]
∵ [tex]x = 9[/tex] [The larger Number]
The smaller number [tex]'y' = 7 - 9 = -2[/tex]
To learn more about 'variables' solving,' refer here:
brainly.com/question/137440
What is angle D equal??
If a Customer places an order for $47.36 and it’s late, then how much would the customer be refunded if the refund is 20% on the total
The amount of the money refunded to the customer will be $9.472.
The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that a Customer places an order for $47.36 and it’s late. The refund is 20% of the amount.
The refunded amount will be calculated by multiplying the total amount by the percentage of the refund,
Refund = $47.36 x 0.2
Refund = ( $9.472 )
Therefore, the refunded amount will be $9.472.
To know more about percentages follow
https://brainly.com/question/24304697
#SPJ2
Children 4 years old or younger can ride the train for free. Write an inequality that expresses who can ride the train for free.
x<=4
x is less than or equal to four
children less than or equal to four can ride the train for free
One of the legs of a right triangle measures 6 cm and its hypotenuse measures 11 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer: 12.53 cm
Step-by-step explanation:
Answer:
Step-by-step explanation:
[tex]h^2=x^2+y^2\\ \\ x^2=h^2-y^2\\ \\ x=\sqrt{h^2-y^2}\\ \\ x=\sqrt{121-36}\\ \\ x=\sqrt{85}[/tex]
Y = 0.4x^2 + 2x + 2.5 Help!
Answer:
Step-by-step explanation:
Are you trying to find the x-intercepts?
Pythagorean Theorem:
x = [-2 ±√(2^2-4(0.4)(2.5)]/[2(0.4)] = -2.5
The table shows Mitch’s record for the last thirty par-3 holes he has played.
Based on this record, what is the probability that Mitch will score a 2 or 3 on the next par-3 hole?
a. 7/9
b. 3/5
c. 3/10
d. 9/50
Answer: THE ANSWER IS D
Step-by-step explanation:
help! answer options included
Answer:
Y = [-6 6 6 -6]
Step-by-step explanation:
From the given matrices
If X - 2Y = Z
b - 2c = a ... 1
a -2d = c ...2
4+2a = 16.... 3
a + 2b = b .... 4
From3 ;
2a = 16-4
2a = 12
a = 6
From 4;
a + 2b - b = 0
a+b = 0
a = -b
6 = -b
b = -6
From1;
b - 2c = a
-6 - 2c = 6
-2c = 12
c = -6
also
a - 2d = c
6-2d = -6
-2d = -6-6
-2d = -12
d = 6
Hence the matrices Y = [-6 6 6 -6]
-u/5=-27 help pls due today
Answer:
u = 135
hoped i helped u
Step-by-step explanation:
Pls Answer The following Question Given
Answer:
11/15 > 4/7.
Step-by-step explanation:
11/15 = 0.7333.....
4/7 = 0.5714....
Obviously from this, we can conclude that 11/15 is greater than 4/7.
So, the answer is 11/15 > 4/7.
Answer:
a)>
hope it's helpful ❤❤❤
THANK YOU.
what is the measurement of
Answer:
B = 24 degrees
Step-by-step explanation:
It should have 180 total
180 - 61 = 119
hELp mEEEEEEE pLssssssss
Answer:
its #3
Step-by-step explanation:
hope this helps
it's 3
Step-by-step explanation:
Hope it is correct
Can someone help me with this geometry question?
13.73cm^2
You can apply the same apoproach from the other question. It's the area of the square minus the area of the circle. So,
Area of the square is 8x8=64
Area of the circle is (pi)*(radius=4)^2=50.27
64-50.27=13.73cm^2
Hey Can someone help me please
Which graph shows y = 2x - 1/2?
Answer:
Third down
Step-by-step explanation:
2x = slope
-1/2 = y-intercept
-8m – 6(1 - 4m) = -102
Answer:
Step-by-step explanation:
Here you go mate
Step 1
-8m – 6(1 - 4m) = -102 Question
Step 2
-8m – 6(1 - 4m) = -102 Remove parenthesis
16m-6=-102
Step 3
16m-6=-102 add 6 to sides
16m=-96
Step 4
16m=-96 Divide sides by 16
Answer
m=-6
Hope this helped
Answer:
Step-by-step explanation:
I can help
Step 1
-8m – 6(1 - 4m) = -102 Simplify
Step 2
-8m – 6(1 - 4m) = -102 Add 6 to the sides
16m=−96
Step 3
16m=−96 Divide the sides by 16
Answer
m=-6
Hope this helps
2. A spy uses a telescope to track a rocket launched vertically from a launch pad 6 km away. The rocket travels upwards at a velocity of 21.6 km per minute. Find the rate of change of the distance between the spy and the rocket when the rocket is 8 km in the air. Answer: 17.28 km/mim
NEED HELP ASAP
Answer:
The rate of change in distance between the spy and the rocket is 10.8 km/min,
or about 180 m/sec.
Step-by-step explanation:
At "Time=0" the rocket is 6km from the spy.
The rocket travels vertically 8km in about 0.37 minutes, calculated by 8km÷21.6km/min.
At that point, the rocket is 10 km from the spy., calculated by 6²+8²=10²
The difference is 4 kiilometers over 0.37minutes, about 22.2 seconds
Divide Distance by Time to get Rate:
4km/0.37min = 10.8 km/min
That is about 180 meters per second.