Answer: 3x - 23
Step-by-step explanation:
To solve the equation goes thus:
= 2(x-7)+x-9.
We have to open the bracket first
= 2x - 14 + x - 9
We then collect like terms
= 2x + x - 14 - 9
= 3x - 23
Therefore, the answer is 3x - 23
What is the slope of (3,7) and (6,12)
Answer:
slope=y2-y1/x2-x1
where y2= 12, y1=7, x2=6, x1=3
12-7/6-3
= 5/3
therefore slope=5/3
The two-way table below gives information on seniors and juniors at a high school and by which means they typically get to school.
you select one student from this group at random. If the student says he is a senior, what is the probability that he or she takes the bus to school.
A) 0.073
B) 0.160
C) 0.256
D) 0.455
Answer:
C
Step-by-step explanation:
64/250 is 25% which translates to .25
y'all I need help asap
Answer:
Let's solve for x.
4x+5y=7
Step 1: Add -5y to both sides.
4x+5y+−5y=7+−5y
4x=−5y+7
Step 2: Divide both sides by 4.
4x/4=−5y+7/4
x=−5/4 y+ 7/4
Answer: for the first one x=−5/4 y+ 7/4
3x−2y=−12
Step 1: Add 2y to both sides.
3x−2y+2y=−12+2y
3x=2y−12
Step 2: Divide both sides by 3.
3x/3=2y−12/3
x=2/3y−4
Answer:
x=2/3y−4
Step-by-step explanation:
A whole number whose square root is an integer
Answer:
These are also called "Perfect Squares", and if you're asking what I think you're asking, the first 20 perfect squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361 and 400.
Step-by-step explanation:
The possible integer square root are 0,1,2,3 and 4
Which table represents a function?
Х 2 4 2 4
f(x)
3 5
1)
7 9
х
-1 0 1
2)
f(x)
1 -1 0
х 3 5 7 9
f(x) 2. 4 2 4
3)
х 0 1 -1 0
f(x) 0 -1 0 1
WN
이이
olo
اتها
1
3
Answer:
3
Step-by-step explanation:
to be a function, there has to be exactly one x for every y. if there is more than one per y, it makes it not a function. so, if there is two of the same number in the x, it's not a function.
A function of Table C since all the input variables has a unique value in the codomain
Table of functionFor a table to be a function, all the input values must have a unique output.
Also, there must not be a repetition of values in the x-column of the table, hence it is not a function
From the given tables, you can see that the table that represents a function of Table C since all the input variables has a unique value in the codomain
Learn more on table on functions here: https://brainly.com/question/3632175
3/8 of pupil in year 9 say their favourite colour is red there are 136 pupil in year 9 how many students said red is their favourite colour
Answer:
51 students
Step-by-step explanation:
3/8 of the total fraction of students say their favourite colour is red. If there are 136 students in the class, the total number of students that like red is :
3/8 X 136 = 51
if u help me ur a very nice person :DDD
Answer:
D. -31 is less than -23
Step-by-step explanation:
If you could help me with any of these questions that would make me very happy : )
Answer:
Step-by-step explanation: The first one would be -40 X 30. The parentheses around -25 turns it into a positive. And 5 make you round up
For 2, the -18 turns into a positive 18 bc of the parentheses. So round up to 20. Round 38 up to 40. 20 x 40
For 3, the negative 16 turns positive, making the equation -21 x 9 x 16. Round them to -20, 10, and 20. The equation is -20 x 10 x 20. Hope this helps!
What would you multiply by to decrease a number by 22.5%
Step-by-step explanation:
do 100-22.5 and that should be the number
A person invests 9000 dollars in a bank. The
bank pays 6.5% interest compounded daily.
To the nearest tenth of a year, how long
must the person leave the money in the bank
until it reaches 31100 dollars?
Answer:
19 years approx
Step-by-step explanation:
Given dta
P= $9000
r= 6.5%
A= $31100
Calculate time, solve for t
t = ln(A/P) / r
substitute
t= ln(31100/9000)/0.06.5
t= ln(3.45)/0.06.5
t= 1.23/ 0.065
t= 18.92
Hence the time is 19 years approx
Which of the following would be a better buy than purchasing 4 mangoes for $16?
how to write a number increased by 11 is eaqual to twice the number decreased by 12
Answer: The number is 23
Step-by-step explanation:
Let x be the [number]
Rephrase the expression
a number increased by 11 is equal to twice the number decrease by 12
x+11=2x-12
Add 12 on both sides
x+11+12=2x-12+12
x+23=2x
Subtract x on both sides
x+23-x=2x-x
x=23
Hope this helps!! :)
Please let me know if you have any questions
1. Ashley invested $210 in a saving account with an 8%
interest rate. How much interest will she earn after 7
years?
What is the interest rate
Answer:
The intrest rate is 8% and after 7 years she will have made 149.90 in total intrest.
please help
will give brainliest
i cannot read it swry
I need help with this last problem please
Answer:
25
Step-by-step explanation:
12+13=25 so 25x5=125 and 125 divide 5=25
I'm on computer so examples will look weird so I will label them.
Answer:
Your answer will be 25.
Step-by-step explanation:
1. You will rewrite the division as a fraction
Ex: 5 × (12+13)
____________
5
2. Cancel the common factor which is 5 so you will cross out the 5's
3. Then you would divide the (12+13) by 1
4. Finally you would add the 12 and the 13 to get 15.
I hope this helps. : )
(7th grade math question)
Evan bought a pair of shoes for $120 there is a discount on the shoes for 10% off and the tax is 5%. What is the total price?
A) 105.46
B) 113.40
C) 108.00
D) 109.36
please answer soon
It's B I think. I might have done it wrong. But I pretty sure it's B
Answer:
It’s B
Step-by-step explanation:
Aline that includes the point (3. 10) has a slope of 4. What is its equation in slope intercept
Answer:
Y = 4x - 2
Step-by-step explanation:
Use the given slope and point to substitute into the point-slope formula
7. Find the missing length of the right triangle below. (Round to the nearest
tenth, if necessary)!*
26 cm
10 cm
b
please help me! ASAP explain for brainlist.
Step-by-step explanation:
Hello,
First, there are 8 possible outcomes for the game spinner.
Second, the spinner is on 5, meaning that the outcome is 5.
Try to work with this, and if you need more help, I’ll answer back if I can.
Answer:
okay see the correct answer is D
Step-by-step explanation:
first 0f all a sample space means the possible outcome for all possibilities. like just as shown in the spinner the 1 2 3 4 5 6 7 8, or it could be in a dice 1 2 3 4 5 6 like that
second of all the outcome shown is wh,at the possibility landed on like as shown its five since the arrow of the spinner is there, as for a dice for example it could have been 4 4 since dice are always 2
I SERIOUSLY AM SKIPPING MY MATH CLASS IM HELLA BORED BUT DO U UNDERSTAND MATE
Write an equation in point-slope form of the line that passes through the point (4, 7) and has a slope of −1
Answer:
y=-x+5
Step-by-step explanation:
For this question, we have to use point-slope form:
y-y1=m(x-x1)
y-1=-(x-4)
y-1=-x+4
y=-x+5
Let me know if this helps!
i think of a number multiply it by three and add four i get twenty two.
a) using the statement above, form an equation. use the letter ‘x’ for the unknown number
b) solve the equation
Answer:
6
Step-by-step explanation:
3x+4=22
22-4÷3=6
Construct 2 dilations of the figure using the scale factors 2 and 5.
Answer:
um i need you to elaborate? i dont see anything
Step-by-step explanation:
PLEASE ANSWER QUICK!!!
Bill started cooking at 10:45 AM and finished at 11:23 AM.
How long did it take him? Give your answer in minutes.
3 1/6 divided by -1/3
Answer:
-9 1/2
Step-by-step explanation:
If m<1 is 68° and m<3 is (3x - 7)º, what is x?
A. 25
B. 26 1/3
C. 49
D. 140
Answer:
C. 49.
Step-by-step explanation:
The measure of the angle below <1 = 68 degrees (vertical angles).
m < 3 = 72 + 68 External angle of a triangle theorem.
m < 3 = 140
3x - 7 = 140
3x = 147
x = 49.
Answer:
C
Step-by-step explanation:
The angle at the top of the triangle is vertical to ∠ 1 and congruent
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ 3 is an exterior angle of the triangle, then
3x - 7 = 72 + 68 = 140 ( add 7 to both sides )
3x = 147 ( divide both sides by 3 )
x = 49 → C
on monday two hundred thirty-four students went on a trip to the zoo. All five buses were filled and four students had to travel on cars. How many students were in each bus?
Answer: 46 students on each bus
Step-by-step explanation:
234-4=230
230/5=46
Solve for k:
17/3k - 2 = 4/3(4k + 2)
Answer:
k = 14
hope it's helpful ❤❤❤❤❤
THANK YOU.
Nora did her homework for 1 hr 5 min. She started on her homework at 11:35 a.M.What time did Nora finish doing her homework
Answer:
12:40
Step-by-step explanation:
helppppppppppppppppp
Answer:
30
Step-by-step explanation:
40-10=30 so N has to be 30
Your answers are N=30 and N-25=5
Hope this helps :)
1 thanks for me=1 thanks for you
5 stars=3 thanks for you
Brainliest for me=5 thanks for you
4t + 5 = -9
Solve for t
Answer:
t = -3.5
Step-by-step explanation:
4t + 5 = -9
4t = -14
t = -3.5
Answer:
t=1
Step-by-step explanation:
subtract 5 from both sides then simplify and divide