suddenly the number of math problems mathletes had to solve increased by 60%! to keep on track the mathletes try to go faster but only increase their speed by 25% By what percent must the number of mathletes on the team increase so they can solve all the problems on time?
9514 1404 393
Answer:
28%
Step-by-step explanation:
If x represents the fractional increase in the number of mathletes, and if problem-solving speed is jointly proportional to their speed and their number, we want ...
(1 +25%)(1 +x) = (1 +60%)
1 +x = 1.60/1.25 = 1.28
x = 0.28 = 28%
The team size must increase by 28% to solve all of the problems on time.
Evaluate 2 |x-4| +6 when x=-3
Answer:
use math w.a.y works like a dream
Step-by-step explanation:
PLLLZZZ HELP and explain how you got it
How many terms are there in this equation? 5v + 8?
1. none
2. 1
3. 2
4. 3
Answer:
2
Step-by-step explanation:
what are the partial products for 14x35
please help me with this problem..
Answer:
8
Step-by-step explanation:
The 110 degree angle is oppoiste to the angle across it.
Using PLT-C the other angle on the bottom of it should be 70 degrees.
since the 70 degrees is on a straight angle the angle beside it should 110
14(8)-2 = 110
is this linear or non linear?
Answer:
Non-Linear
Step-by-step explanation:
it looks to be more of a "U" or "V" shape. :)
1. Natalie graphed a system of equations with
no solution. What must be true about the
equations of the lines?
a. They have the same slope.
b. They have different y-intercepts.
c. The lines are parallel.
d. All of the above.
Answer:
d.all of the above
Step-by-step explanation:
System of equations with no solution means that lines are parallel to each other,don have any common point.
Note that two lines are parallel if their slopes are equal and they have different y-intercepts.
So all the alternatives are true.
Solve for x: -3|2x + 6) = -12
O x = -9 and x = 3
O No solution
O x = -1 and x = -5
O x = 1 and x = 5
Answer:
x=-1 and x=-5
Step-by-step explanation:
what is 0.82 repeating as a simplified fraction
Answer: 0.82 and 82 repeats
the answer is 82/99
Step-by-step explanation: I got it from khan
The given repeating decimal number can be written in fraction as 82/99.
The given decimal is 0.828282.....
Take x=0.828282...... -------(i)
Multiply both the sides of the given equation by 100, we get
100x=82.8282........ -------(ii)
Subtract equation (i) from (ii), we get
100x-x=82.8282........ - 0.828282.....
99x=82
x=82/99
Therefore, the given repeating decimal number can be written in fraction as 82/99.
To learn more about the fraction visit:
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Josh has 40 minutes to complete a government exam. There are 15 multiple-choice questions worth 3 points each. There are also 5 short-answer questions worth 11 points each. It takes about 2 minutes for Josh to answer the multiple-choice questions m and about 8 minutes to complete the short-answer questions s. The system of inequalities that represents this problem is graphed below. Which ordered pair is not a vertex of the feasible region?
Answer: Josh don't have enough time :/
Step-by-step explanation:
Plz, Help me with this question.
i need help again lol
Answer:
i think 289 1/2 im not sure lol
Step-by-step explanation:
Answer:
[tex]337\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]12\frac{1}{2} = \frac{25}{2}[/tex] [tex]6\frac{3}{4} = \frac{27}{4}[/tex] V = L × W × HV = 25/2 × 4 × 27/425/2 × 4 × 27/4 = 675/2[tex]\frac{675}{2} = 337\frac{1}{2}[/tex]I hope this helps!
B is the midpoint of, AB = x² + 2x + 25 and BC = 40. What are the values of x?
Answer:
x=3, -5.
Step-by-step explanation:
x^2+2x+25=40
x^2+2x+25-40=0
x^2+2x-15=0
factor out the trinomial,
(x-3)(x+5)=0
zero property,
x-3=0, x+5=0,
x=0+3=3,
x=0-5=-5.
If (2x + 3y)^2 = 4 and xy = -5, what is the value of 4x^2 + 9y^2?
Step-by-step explanation:
Answer: 4 - 12(-5) = 64.
select all ratios equivalent to 8:14
6:7, 1:6, 12:21
Answer:
12:21
Step-by-step explanation:
i had a quiz like this
Answer: 12:21 = 8:14
Step-by-step explanation:
6:7 = 12:14
1:6 = 2:12 (closest to 14)
12:21 ÷ 3 = 4:7 x 2 = 8:14
Because of this, 12:21 is equivalent to 8:14
help me with these two.
Answer:
first one is D and the second one is B
Step-by-step explanation:
Have a great day! :)
Answer:
3. 73 4. -18
Step-by-step explanation:
3.
45 - (-28)
45 + 28
73
4.
-55 - (-37)
-55 + 37
- 18
If a car travels 81
miles in 1.2 hours,
how long would it take
to travel 150 miles at
the same rate
Answer:
2.22222 hours
Step-by-step explanation:
6x — 4 y = 9
9x — бу = 15
Answer:
0
Step-by-step explanation:
3x^9-3x^6 does it subtract
Answer:
no it doesn't because the variables are not the same
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 3 to 5. If there were 4136 total votes, how many yes votes were there?
Answer:
1551 Yes voters
Step-by-step explanation:
Yes : No
3 : 5
total = 4136
add up both no and yes :3+5 =8
8 will be the total ratio of voters
Yes
3/8 × 4136
= 0.375 × 4136
= 1551 Yes Votes
-3х + Зу = 6
A.no solution
B.one solution
C.two solutions
D.infinite solutions
I need to know what X=
Answer:
Lol I learned about this today in class, but I couldnt pay attention cuz I started crying about something
Step-by-step explanation:
There is a daily fee for renting a moving truck, plus a charge of $0.50 per mile driven. If driven 48 miles, it costs $64 to rent a truck. Write and solve a linear equation to find the daily fee.
Answer:
Step-by-step explanation:
Which values are within the range of the piecewise-defined function?
f(x) =
2 x + 2 x < - 3
X x = -3
- x - 2 X > -3
y = -6
y=-4
y=-3
y = 0
y = 1
y = 3
Answer:
-6, -4, -3, 0
Step-by-step explanation:
I just did this question and got it right.
-6, -4, -3, and 0 are the values which are within the range of the piecewise-defined function.
Correct options: a) y = -6, b) y = -4, c) y = -3, d) y = 0
Here, we have, to determine which values are within the range of the piecewise-defined function, we need to evaluate the function for each given value of y.
Given piecewise-defined function:
f(x) =
2x, x < -3
x, x = -3
-x - 2, x > -3
Let's evaluate the function for each value of y:
a) y = -6
For y = -6, we need to find x such that f(x) = -6.
-6 is in the range of the function if there exists an x such that f(x) = -6.
For x < -3: f(x) = 2x
2x = -6
x = -3
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = -6
x = 4
Since there is a value of x (-3) that satisfies f(x) = -6, option a) y = -6 is correct.
b) y = -4
For y = -4, we need to find x such that f(x) = -4.
-4 is in the range of the function if there exists an x such that f(x) = -4.
For x < -3: f(x) = 2x
2x = -4
x = -2
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = -4
x = 2
Since there is a value of x (-3) that satisfies f(x) = -4, option b) y = -4 is correct.
c) y = -3
For y = -3, we need to find x such that f(x) = -3.
-3 is in the range of the function if there exists an x such that f(x) = -3.
For x < -3: f(x) = 2x
2x = -3
x = -1.5
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = -3
x = 1
Since there is a value of x (-3) that satisfies f(x) = -3, option c) y = -3 is correct.
d) y = 0
For y = 0, we need to find x such that f(x) = 0.
0 is in the range of the function if there exists an x such that f(x) = 0.
For x < -3: f(x) = 2x
2x = 0
x = 0
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = 0
x = -2
Since there is a value of x (-3) that satisfies f(x) = 0, option d) y = 0 is correct.
e) y = 1
For y = 1, we need to find x such that f(x) = 1.
1 is in the range of the function if there exists an x such that f(x) = 1.
For x < -3: f(x) = 2x
2x = 1
x = 0.5
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = 1
x = -3
Since there is no value of x that satisfies f(x) = 1, option e) y = 1 is incorrect.
f) y = 3
For y = 3, we need to find x such that f(x) = 3.
3 is in the range of the function if there exists an x such that f(x) = 3.
For x < -3: f(x) = 2x
2x = 3
x = 1.5
For x = -3: f(x) = x
x = -3
For x > -3: f(x) = -x - 2
-x - 2 = 3
x = -5
Since there is no value of x that satisfies f(x) = 3, option f) y = 3 is incorrect.
Correct options: a) y = -6, b) y = -4, c) y = -3, d) y = 0
The correct values within the range of the piecewise-defined function are -6, -4, -3, and 0.
To learn more on function click:
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evaluate 2 |x-4| + 6 when X = -3
please help.
Answer:
20
Step-by-step explanation:
The answer can’t be a negative because of the absolute value. |-3-4| =-7
so you would consider that as 7.
2x7=14
14+6=20
Which of the following equations would have no solution?
3(-2x + 4)
- 6x
10x + 3 = 3 + 10x
-8 + 16x 16X - 8
4(2x - 3)
8x - 12
please someone soon
Answer:
-6 has no solution due to that it is already done
plz help. im so confesed
Answer:
130
Step-by-step explanation:
you will find x by subtracting 180-50=130
Answer:
130 degrees
the angle all together is 180 degrees so if you subtract 50 degrees from it you will get 130
please give brainliest
Help Me I will give you a BRAINIEST
Answer:
its 10.08
Step-by-step explanation:
Match each expression to its simplified form 4(-x+2)
Answer:
−4x+8
Step-by-step explanation:
=(4)(−x+2)
=(4)(−x)+(4)(2)
=−4x+8
Answer:
-4x + 8
Step-by-step explanation:
(4 . -x) + (4.2)
-4x + 8
