Answer:
-10-10x=100
-10x=100+10
-10x=110
x=-11
Step-by-step explanation:
Answer:
-2(5+5x)=100
-10-10x=100
-10x=110
x=-11
Step-by-step explanation:
:)
Find the value of k so that the binomial (x – 3) is a factor of the function f(x) = 3x + 2x + kr - 3.
A. 32
B. -32
C. 13
D. -13
E. -22
Bill wanted to try out different water craft he went 62 mikes downstream in a motor boat and 27 mikes down stream on a jest ski his speed on the jet ski was 10 mph faster than the motor boat bill spent a total of 4 hours on the water what was his speed in the motor boat
Answer:
The speed on motorboat is 20 mph
Step-by-step explanation:
here, we want to find the speed on the motorboat
if he has a speed of x mph on the motor boat, his speed on the ski will be (x + 10) mph
The total hours is 4 hours
Mathematically; speed = distance/time
Time on ski is 27/x+ 10
Time on motor boat is 62/x
The addition of both is 4
Thus;
27/(x + 10) + 62/x = 4
27(x) + 62(x + 10) = 4(x)(x + 10)
27x + 62x + 620 = 4(x^2 + 10x)
89x + 620 = 4x^2 + 40x
4x^2 -49x-620 = 0
using the quadratic formula;
{-b ± √(b^2-4ac)}/2a
where a = 4, b = -49 and c = -620
= 49 ± √(-49)^2-4(4)(-620)/8
So we have
49+ 111/8 or 49-111/8
Speed cannot be negative
(49 + 111)/8
= 20 mph
please help look at the picture to see the question.
Answer: oo I did this in one quiz i thnk is c I put thaha
Step-by-step explanation:
ad, fj hjfgwfjnsj fbesfhbfhwbhfwe f ehw fhw efweh f weh
Answer:
I just want the points please
Step-by-step explanation:
the answer is 10029481
3. Consider the figure below, What is the sum of m
Answer:
you do not have enough information to determine
please help! i need this done now<3
Answer:
25
Step-by-step explanation:
The table shows the width and length of different pictures that Shakira has enlarged for the school yearbook:
Enlarged Picture
2 5
4 10
6 15
Based on the table, what is the length of a picture that has a width of 18 inches?
A:36
B:38
C:45
D:90
I really need help pls and thx
Answer:
If the left column is the width then the length is 45
If the right column is width then the length is 7.2
Step-by-step explanation:
ratios
The ratio of cherry candies to grape candies in a bag is 3:5. After your friend eats half of the grape flavored candies and only one cherry flavored candy, the ratio of cherry to grape candies is 7:6. How many candies are left in the bag?
Answer:
65
Step-by-step explanation:
The computation of the number of candies left in the bag is as follows:
Let us assume the cherry candies be c ;
And, grape candies be g
Now the ratio between them is 3:5
And, in the case when half of the candies are eaten and one cherry is also eaten so the ratio is
(c - 1) ÷ (g ÷ 2) = 7 ÷ 6
After subsitution
It would be
(3 ÷ 5g - 1) ÷ (g ÷ 2) = 7 ÷ 6
Now after solving it,
g = 60
And, the c = 35
As the candies are half so it would be 30 now
So, the number of candies together is
= 35 + 30
= 65
What is the length of segment V? Help please asap
Answer:
11
Step-by-step explanation:
8+6=14
14-3=11
What is the Square root of 38 to the nearest hundredth? with long division solution
Answer:
6.164
Step-by-step explanation:
find the values of x in [0,360) which satisfy 2cot^2x=-3cscx
Answer:
The values of x is -30 degrees and undefined
None of these values fall within the given range
Thus, no value within the given range is the solution to the equation
Step-by-step explanation:
Here, we want to find the value of x that works for the equation in the selected range
2cot^2x = -3csc x
Mathematically, from trigonometry;
cot^2x = csc^2x - 1
Substitute this above
2(csc^2x - 1)= -3csc x
let csc x = b
2(b^2-1) = -3b
2b^2 - 2 + 3b = 0
2b^2 + 3b - 2 = 0
2b^2 + 4b - b - 2 = 0
2b(b+ 2) - 1( b + 2) = 0
(2b-1)(b + 2) = 0
2b = 1
b = -2
b = 1/2 = 0.5
or b = -2
Recall;
csc x = b
x = csc^-1 b
x = csc^-1 0.5
x = undefined
Secondly;
b = -2
x = csc^-1 (-2)
x = -30 degrees
As we can see , between the points
0 ≤ x < 360
None of our answers fall in these range
Describe two ways the Earth moves.
Answer:
On it's Axis and it moves around the sun
Step-by-step explanation:
PLEASE HELP ASAP BRAINLIEST WILL BE GIVEN.
Item 3
Jessica and Raphael are saving money for concert tickets. Each friend starts with an amount and also saves a specific amount each week.
Jessica came up with the following equation to show the total, y, she has saved at the end of each week, x.
y = 10x + 20
Raphael created a table to show the total he has saved at the end of each week.
Weeks 0 1 2 3 4 5 6 7 8
Amount saved 40 46 52 58 64 70 76 82 88
After saving for a certain number of weeks, Jessica and Raphael will have each saved the same amount of money. How much money will they have each saved then?
Compare the rate at which each friend saves money.
Select the correct answer from the drop-down menu to complete the statement.
The rate at which Jessica is adding to her savings each week is $
1,4,6,8,or 10
more than the rate at which Raphael is adding to his savings each week.
Answer:
part 1: Jessica saved 100, Raphael saved 88
part 2: The rate at which Jessica is adding to her savings each week is $4 more than the rate at which Raphael is adding to his savings each week.
Step-by-step explanation:
First figure out how much money Jessica saved at the end of week 8, compared to Raphael.
Use x =8
y = 10*8 + 20 = 100
For Raphael it is shown in the table as 88.
Next figure out the rate Raphael saves. We can find the slope usng (y2-y1) / (x2-x1).
Using the table lets use (0,40) and (1,46)
46-40 / 1-0 = 6/1 = 6
So Raphael saves $6 each week. This is $4 less than what Jessica saves each week since the slope for her equation is 10 or $10 each week.
please give thanks :)
and brainliest, much appreciated
Answer:
Step-by-step explanation:
10 each weekkkkkkkkkk
Can you please help me!? Explain and show work, please!
Answer:
no solution
Step-by-step explanation:
someone please help
Answer:
6
Step-by-step explanation:
solve the inequality
2(4x-3)>-3(3x)+5x
Use (2, 16) and (4,32) to find the constant of proportionality.
The unit rate (constant of proportionality) is
miles
hour
(Simplify your answer
Answer:
8 miles per hour
Step-by-step explanation:
First find the slope. The slope is the unit rate/constant of proportionality.
To find slope use the points given and formula y2-y1 / x2-x1
(32-16) / (4-2)
= 16 / 2
= 8
Thus the unit rate is 8 miles per hour.
please give thanks, hit the heart button! :)
When solving 7.6 ÷ 10, how is the decimal point moved?
1 place to the right
1 place to the left
2 places to the right
2 places to the left
Answer:
1 place to the left
Step-by-step explanation:
im pretty sure
Find the perimeter of the triangle
Answer:
60 ft
Step-by-step explanation:
(x+13) = (3x-1) = (6x-22) since the triangle is equaililateral
(x+13) = (3x-1) (we only need to chose 2)
-2x=-14
x=7
after this, we just need to plug in the number for x
3(7)-1= 20--->since the triangle has 3 congruent sides, they all have the distance, so 20x3=60
60FT
C'mon any washingtonians???
Answer the questions based on the interview of Warren Michio Tsuneishi.
The most difficult thing for Tsuneishi about living in the internment camp was the
_________
Moving to internment camps for many Asian American families meant
_________
The spirit of the internment camp compared to the German concentration camp at Dachau was different, but the camp was similar in
_________
Answer:
1. Loss of freedom
2. Economic loss
3. Layout
Step-by-step explanation:
Answers are numbered for each one
Answer:
1. Loss of freedom
2. Economic loss
3. Layout
Step-by-step explanation:
I just took the quiz
Find m∠1. Then classify the triangle by its angles.
Answer:
52 degrees
right triangle
Step-by-step explanation:
Answer:
42°
Step-by-step explanation:
The given triangle is a right triangle since the sum of interior angles in a triangle is equal to 180° and two of the angles' measurements are known then the third angle must be 42°
Which is the best estimate of 28x0.64
Answer:
the full answer is 17.92, so that would round up to 18
Step-by-step explanation:
:)
How many solutions does the following equation have?
5x + 4 = 3(2x - 5) - (x + 5)
One. Many. None
what is 31 billion in scientific notation?
explain clearly <3 :D
Answer:
3.1*10^10
Step-by-step explanation:
31 billion would be written like that because... there are 9 0's left, and that goes up to 10 because i turned 31 to 3.1 not 31, so that value after a decimal point adds 1
the order of the surd 7√8
Hello,
[tex]7 \sqrt{8} = \sqrt{7.7.8} = \sqrt{392} [/tex]
Býe býe.
factor 64x² + 114x + 81
um idk how to do these and I'm not gonna learn please help. also I'm gonna have a lot more like this so if you can go through my questions and answer them if you know how... that would be great :)
3(1−9a)+22a=2(2a−9)−15
i need a step by step explanation please
Answer:a=4
Step-by-step explanation:
Expand the brackets. Collect like terms. Get the same values on each side so it’s easier to isolate a. Divide 9 from 9a so that u get a by itself and this gives u the answer if 36/9 or 4.
Answer:
a = 4
Step-by-step explanation:
first distrubute the 3 and then 2 in the equations to whatever is inside the parantheses:
3 ( 1-9a) + 22a = 2(2a-9) -15
3 - 27a + 22a = 4a - 18 - 15
then combine the terms:
3 - 5a = 4a -33
then isolate the variables and constants to one side, for example move the 5a to the right side of the equation and move the 33 to the left side of the equaiton and then simplfy
36 = 9a
divide both sides by 9
a = 4
Hurry answer please
A) The distance between -5 and 0 is a Positive 5 because it takes 5 positive spots to go from -5 to 0.
B) The Absolute Value of -5 is 5. (Absolute Value means the distance from that number from zero) Is takes 5 spots to get to -5.
I hope this helps, and Happy Holidays! :)
Answer:
1) 5 units
2) 5
Step-by-step explanation:
absolute value is basiclly the opposite for example 4 would be -4 and -7 would be 7
also if it has lines like this: |2| it stays as it is so |3| is still 3 and |-5| is still 5
hope this helps :)
1.
How many different three - scoop bowls of ice cream are there?
There is 24 total flavors to choose from
Answer:
i think 126 different bowls
correct me if im wrong
1. A small college requires its students to take at least one Mathematics course and at least one Science course. A survey of 140 of its students shows that:
60 completed their Mathematics requirement, 45 completed their Science requirement and 20 completed both Mathematics and Science requirements. Use a Venn diagram to find the number of students who had completed:
a. exactly one of the two requirements;
b. at least one of the requirements;
c. neither requirement.
Answer:
65
85
Step-by-step explanation:
Exactly one of the two requirement
Maths only = 45 - 20 = 25
Science only = 60 - 20 = 40
Exactly one = (25 + 40) = 65
B.) Atleast one :
(25 + 40 + 20) = 85
C) Neither :
140 - 85 = 55