Answer:
1.6 hours
Step-by-step explanation:
12.8 divided by 8 = 1.6
Need help with 22 and please gives explanation
Answer:
45 mi/h
Step-by-step explanation:
Here, we can find the total distance divided by the total time. To find the total time, we can set up 2 equations:
[tex]d = vt[/tex] (which is the formula that connects velocity, time and displacement).
Here, we have to split the trip into 2 displacements because the car changes speed. So, we have 40 mi = 40 (mi/h) * t1. And t2 = 1 hour. For the second distance: 20 mi = 60 (mi/h) * t2. And t2 = 1/3 hrs.
since total time = t1+t2, we get the total time is 4/3 hours. Then, we get:
80 = [tex]v_{avg}[/tex]*(4/3) where [tex]v_{avg}[/tex] is the average velocity of the trip. Finally, we get [tex]v_{avg}[/tex] = 45 mi/h
Determine the measure of ∠Z. images attached
Answer:
The answer is option DStep-by-step explanation:
Since it's a right angled triangle we can use trigonometric ratios to find the value of ∠Z
To find the value of ∠Z we use tan
We have
[tex] \tan(∠Z) = \frac{28}{25} \\ ∠Z = { \tan }^{ - 1} \frac{28}{25} \\ ∠Z = 48.239700...[/tex]
We have the final answer as
48.24°Hope this helps you
Answer:
the answer is B)41.76
Step-by-step explanation: I took the test
5- ܫ ܐx
.9
Use square roots
Mr. Leto plans to save money to buy a carpet. If he saves $50 each week for 30 weeks, he will have saved the exact amount of money needed to buy the carpet. If Mr. Leto instead saves $75 each week, how many weeks will it take him to save the same amount of money?
Answer:
Number of new weeks = 20 week
Step-by-step explanation:
Total money saves = $50 x 30
Total money saves = $1,500
Find:
Number of new week
Computation:
Total money saves = Number of money save per week x Number of new weeks
1,500 = 75 x Number of new weeks
Number of new weeks = 20 week
Please help me I got a bad grade and I need to redo them
Find the slope
Answer:
The first one has a slope of 4
The second one has a slope of 0.3 repeating
Step-by-step explanation:
You pick two points on the graph.
You find the x and y coordinates of each point.
You find the difference between the two x coordinates.
You find the difference between the two y coordinates.
Divide the difference in the y coordinates by the x coordinates.
If im wrong sorry owo im only in elementary school... <3
Answer:
4/6
Step-by-step explanation:
PLEASE HELP I DONT UNDERSTANDDDD I WILL MARK BRAINLY IF CORRECT
In a petri dish, a certain type of bacterium doubles in number every 20
minutes.
There were originally 8, or 23 bacteria in the dish. After 140 minutes, the
number of bacteria has doubled 7 times, multiplying by 27.
Now the population of bacteria is 23.27. Expressed as a power, how many
bacteria are in the petri dish after 140 minutes?
A. 410
Ο Ο
B. 27
O C. 210
O D. 221
Answer:
C. 2^10
Step-by-step explanation:
Law of indices
a^x + a^y = a^(x+y)
2^3 × 2^7
=2^(3+7)
=2^10
Paid the rent for the month,$650
Answer:
whats the question here
Step-by-step explanation:650 rent
Mr. Ortiz has 5/8 pound of oatmeal. He uses 4/5 of the oatmeal to bake muffins. How much oatmeal does Mr. Ortiz have left? Enter your answer in simplest form.
what is the value for y in the follower expression
When x= 14
Y=2x+5
Answer:9-8Step-by-step explanation:
can someone please help me! thanks
8x + 14y = 4
−6x − 7y = −10
Answer:X= 4, y= -2
If you're solving by addition/elimination
Answer:
(4,-2)
I hope this helps
Eric is trying to save $37 to buy a gift for his mother. Right now he has $5. He can save $10 a week from mowing lawns and $5 a week from his allowance. What is the least number of weeks that Eric will need to save to have enough money for the gift?
Answer:
3 weeks. 5+10=15
because in 2 weeks he will have 30 dollars plus the 5 dollars he already has is 35 dollars but, that is not enough he needs one more week.
Candace is a salesperson at the local boat store. She receives a 14% commission on every sale that she makes. How much commission does Candace
make on a boat that sells for $1,995?
Answer: 00000
Step-by-step explanation:
please help me
Claire is decorating a card for her friend. She has a square piece of paper with an area of 36 square inches. She wants to put ribbon around the edges of the paper. Find the amount of ribbon she needs to out around the edges of the paper
24 inches
16 inches
32 inches
40 inches
Answer:
yes indeed
Step-by-step explanation:
Amalie has been saving money buy an electric guitar. A local store has just
marked down the price of its guitars by 30%. Each guitar also comes with a
mail-in rebate for $5.
If the guitar used to cost $210, what will be Amalie's final price after
the markdown and rebate?
Complete each step to solve the problem and answer the question.
Answer:
80 percent
Step-by-step explanation:
1. If point (7.-2) is translated right 10 and down 4. What is the new coordinate for the point?
Answer:
The answer would be (17,-6). It's just add to the original coordinates.
Step-by-step explanation:
Find the missing angle measurements?
Answer:
angle 1=41°
Angle 2=85°
Angle 3=95°
Angle 4 =85°
Angle 5=36°
Angle 6=49°
Angle 7=106°
5x^2- 20 ÷ y - (8 + 13)
X=4 Y=5
Answer:
14
Step-by-step explanation:
Evaluate the expression for z = 3.
z2
Answer:
6
Step-by-step explanation:
z=3
z2= 3*2 = 6
Good luck
1. Mr. Samuels' bank account was in the red, at – $50. For two weeks, he worked at a few odd jobs and made $12, then $24, then $14. What will Mr. Samuels' bank account statement say after he deposits the money, he earned from working these odd jobs? Draw a number line and model the process that leads you to your ans
Answer:
0
please check the attached image for a number line
Step-by-step explanation:
Because Mr Samuels account is in the red, his account would be in the negative. Cash additions to the account would be an addition to the account. This would reduce the negative amounts in the account
-$50 + $12 + $24 + $14 = 0
In the equation t = 0.7n - 1.3, the dependent variable
Answer:
The dependent variable is n i think because the hwole problem depends on n
Step-by-step explanation:
Bart earns $6.30 per h. If his regular pay last week was $236.25, how many hours did he work?
Answer:
Bart worked 37.5 hours last week (37 1/2).
Step-by-step explanation: Divide total pay by rate per hour (in this case $6.30 per hour.)
$236.25 (the total) / $6.30 (money per hour) = 37.5 or 37 1/2
Which point is a solution to ys 4x + 5?
O A. (0,10
O B. (-6,4)
O C. (-4,0)
O D. (0-2)
expressions that are equivalent to 3(q+2).
A.5q
B.6q
C.3(2+q)
D.6q+3
Answer:
Option C
Step-by-step explanation:
Lets calculate 3(q + 2) first;
Distribute;
3(q + 2) = 3q + 6
Option C because 3(2 + q) = 6 + 3q
How many solutions does the equation x^2 = 9 have? How do you know?
Answer:
I'm pretty sure it's 2
Step-by-step explanation:
x^2=9
Step 1: Take the square root.
x=±√9
x=3 or x=−3
which number has a 9 that is 1/10 the value of the 9 in 296?
In a figure, such as a triangle or parallelogram, this is used to refer to the
length of one side.
Answer:
The hypotenuse is the side opposite the right angle, or defined as the longest side of a right-angled triangle,
Step-by-step explanation:
3x² + 22x + 35
Factor the trinomial
Help guys asp!!
Answer:
(x + 5)(3x + 7)
Step-by-step explanation:
Given
3x² + 22x + 35
Consider the factors of the product of the x² term and the constant which sum to give the coefficient of the x- term
product = 3 × 35 = 105 and sum = 22
The factors are + 15 and + 7
Use these factors to split the x- term
= 3x² + 15x + 7x + 35 ( factor the first/second and third/fourth terms )
= 3x(x + 5) + 7(x + 5) ← factor out (x + 5) from each term
= (x + 5)(3x + 7) ← in factored form
Find the inverse of function f. f(x)=9x+7
A. F-1(x)= -9x-7
B.F-1(x)= 1/9x-7/9
C.F-1(x)= 7x+9
D.F-1(x)= 7/9x-1/9
Answer:
B
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 9x + 7 ( subtract 7 from both sides )
y - 7 = 9x ( divide all terms by 9 )
[tex]\frac{1}{9}[/tex] y - [tex]\frac{7}{9}[/tex] = x
Change y back into terms of x with x = [tex]f^{-1}[/tex](x) , thus
[tex]f^{-1}[/tex] (x) = [tex]\frac{1}{9}[/tex] x - [tex]\frac{7}{9}[/tex] → B
4x - 3= 10
What number is x
4x -3 = 10
Add 3 to both sides:
4x = 13
Divide both sides by 4:
x = 13/4
Answer:
x=3.25
Step-by-step explanation:
4x-3=10
Add 3 to both sides.
4x=13
Divide each side by 4.
x= 3.25
Charlie and Kathy want to borrow $21254 to make some home improvements. Their bank will lend them the money for 9 years at an interest rate of 5.07%. How
much will they pay in interest?
Answer:
$ 9698 will be paid paid in interest. hope this helps.
Step-by-step explanation:
interest= prn/100
i= 21254x9x5.07/100
i= $ 9698.2