Please help me answer this
Answer:
[tex]D)\ 25\%[/tex]
Step-by-step explanation:
The following equation can be used to relate the speed time and distance of an object in motion,
[tex](Speed)*(Time)=(Distance)[/tex]
One can also rewrite this equation in terms of time:
[tex](Speed)=\frac{(Distance)}{(Time)}[/tex]
Let this equation represent the relation between Mr.Wang's initial speed and travel time. However, in this problem, Mr.Wang faced a decrease in his speed, more specifically, a (20%) decrease. Subtract (0.2) from (1) to find Mr.Wang's speed in relation to his original speed. Let (x) represent the increase in time that Mr. Wang had to incur in order to reach his destination. Model this situation,
[tex](Speed)*(Time)=(Distance)[/tex]
[tex]0.8(Speed)*x(Time)=(Distance)[/tex]
Now use inverse operations to solve for the coefficient (x):
[tex]0.8(Speed)*x(Time)=(Distance)[/tex]
[tex]x(Time)=\frac{(Distance)}{0.8(Speed)}[/tex]
Using the relation state above: ([tex](Speed)=\frac{(Distance)}{(Time)}[/tex]) one can state the following:
[tex]x(Time)=\frac{(Distance)}{0.8(Speed)}[/tex]
[tex]x(Time)=\frac{1}{0.8}(Time)[/tex]
Thus, (Time) can be omitted from this equation, as it appear on both sides as a factor, hence one can then solve for (x):
[tex]x(Time)=\frac{1}{0.8}(Time)[/tex]
[tex]x=\frac{1}{0.8}[/tex]
Divide (1) by (0.8):
[tex]x=\frac{1}{0.8}\\x=0.25[/tex]
Multiply the decimal by (100) to put it into the percent form:
[tex]x=0.25\\x=25\%[/tex]
Which one does not belong? Explain your reasoning
Answer:
43
Step-by-step explanation:
trust
Caleb reads that 408 students ride the bus to a midde school, The students repusent 60% of the total amount of students at the midde school,What is the total amount of students at the middle school
What is a dichotomous key?
a tool that allows scientists to measure how much glucose is produced by plants
a tool that allows for the identification of an organism based on a series of paired statements that are based on characteristics
a tool that is used to predict the types of offspring produced when two plants are crossed
a tool that is used to measure the height of a plant
help!!!!!!!!!!!!!!!!!!
Answer:
a = 8, B = - 2, c= - 21
Step-by-step explanation:
Just expand the brackets carefully
Select the correct answer
What are the zeros of the graphed function?
Answer:
○ C. [tex]\displaystyle 0, 2, and\:4[/tex]
Step-by-step explanation:
Wherever the graph intersects the x-axis is considered your zero [x-intercept], therefore you have your answer:
[tex]\displaystyle [0, 0], [2, 0], and\: [4, 0][/tex]
I am joyous to assist you at any time.
a total of $10,000 is invested in two funds, Fund A and Fund B. Fund A pays 5% annual interest and Fund B pays 7% annual interest. The combined annual interest is $630. How much of the $10,000 is invested in Fund A?
The amount of the 10000 invested in each Fund A is $5,300
First step is to calculate the amount invested in Fund B
Let x represent the amount invested at 7%
.07x+.05(10000-x)=630
Open the bracket
.07x+500-.05x=630
Collect like terms
.02x=630-500
.02x=130
x=130/.02
x=$6,500
Second step
Now let calculate How much of the $10,000 is invested in Fund A
Fund A amount invested=10000-6500
Fund A amount invested=$3500
Inconclusion The amount o of the 10000 invested in each Fund A is $5,300
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Question 101 3.1 What is the constant difference between the consecutive terms? < 612,18.24 e 7.14.21.28
Answer:
The constant between two consecutive terms is called the common difference. The common difference is the number added to any one term of an arithmetic sequence that generates the subsequent term.
What is 898995x10007766767
Answer: 8.9969323e+15
ive never liked algebra
Answer:
y+11
Step-by-step explanation:
y-3/3+12
=y-1+12
=y+11
andrew rides his bike at a speed of 28 km per hour. he rides for one amd one quarter hours at this speed without stopping. How far does he ride?
Answer:
Well.
Step-by-step explanation:
If its 28 km for hour. A quarter of 28 is 7 so then 28+7=35 km.
Answer: 35 Km
Step-by-step explanation:
28 Km in 60 minutos. How many Km. In 75 minutes (One and one quarter hour =75min)
28/x = 60/75 (cross multiplication)
The model below represents an equation. What value of x makes the equation true?
Answer:
4.5
Step-by-step explanation:
The model represents:
-2x+8=2x-10
Solve.
-2x+8=2x-10
+2x +10
8+10=2x+2x
18=4x
18/4=x
4.5=x
can you please help me with this
Answer:
so
Step-by-step explanation:
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Deana and Bernice are pen pals. The sum of
their ages is 48 years. Eight years from now
Deana will be three times Bernice's age. What
is Bernice's ages now?
Step-by-step explanation:
[tex]thank \: you[/tex]
A teacher has 104 pieces of candy if there are 13 students in the candies divided evenly how many pieces will each student get
Every student will get 8 candies.
What is division?Division is a process of splitting a specific amount into equal parts.
Given that, A teacher has 104 pieces of candy, which she equally divides to her 13 students.
Therefore, for calculating how many candies each of them is getting, we will divide total number of candies to the total number of students,
Therefore, 104/13 = 8
Hence, we get that every student will get 8 candies.
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Helllllpppppppp!!!!!
Answer: The correct answer is C
Step-by-step explanation:The graph is horizontally stretched by a factor of 1/5 because you are literally multiplying x by 1/5. So, your answer is C. Hope it makes sense. mark me brainlest
The algebraic expression for The quotient of 86 and x
Answer: 86 ÷ x or 86 / x
Step-by-step explanation:
A quotient is a number that results when one number is divided by another.
Therefore, in order to get the quotient, numbers or terms should process division which the final answer would be quotient.
In the process, [÷ ] or [/] the division signs shall be applied.
The quotient of 86 and x represents 86 divided by x, which the final result would be [tex]\boxed {86/x}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
I believe the answer you are looking for is simply just 86÷x or 86/x.
Write equation to touch all the stars
Answer:
y=-1/2x+3
Step-by-step explanation:
You're Y coordinate is going to equal the slope, or rise over run (aka rate of change.)
-1/2 is the rate of change, as the line goes up one, over negative two.
Then, add the Y-intercept, which is three, and you've got your equation!
Which expression is equal to 4(2+3)?
a2 + 12
b4 + 5
c8 + 12
d8 + 3
Answer:
I think the third one is right.
Step-by-step explanation:
Hope this helps
Answer:
c. 8 + 12
brainliest is appreciated
Step-by-step explanation:
4 (2 + 3)
using the distributive property multiple what's outside the bracket with what's inside
4× 2 + 4 × 3
8 + 12
f(x) = -x2
Find f(-6)
Solve each proportion
Answer:
[tex] \frac{11}{b - 1} = \frac{6}{b + 1} \\ 11(b + 1) = (b - 1).6 \\ 11b + 11 = 6b - 6 \\ 11b + 11 - 11 = 6b - 6 - 11 \\ 11b - 6b = 6b - 17 - 6b \\ 5b = - 17 \\ \frac{5b}{5} = \frac{ - 17}{5} \\ b = \frac{ - 17}{5} \\ b = - 3.4[/tex]
[tex]\boxed{\underline{\bf \: Answer}}[/tex]
[tex] \sf \frac{11}{b + 1} = \frac{6}{b + 1} \\ [/tex]
Multiply both sides of the equation by [tex]\left(b-1\right)\left(b+1\right)[/tex], the least common multiple of b-1,b+1.
[tex]\sf\left(b+1\right)\times 11=\left(b-1\right)\times 6 [/tex]
Use the distributive property to multiply b+1 by 11.
[tex]\sf11b+11=\left(b-1\right)\times 6 [/tex]
Subtract 6b from both sides.
[tex]\sf11b+11-6b=-6 [/tex]
Combine 11b and -6b to get 5b.
[tex]\sf5b+11=-6 [/tex]
Subtract 11 from both sides.
[tex]\sf5b=-6-11 [/tex]
Subtract 11 from -6 to get -17.
[tex]\sf5b=-17 [/tex]
Divide both sides by 5.
[tex]\sf \: b=\bf\frac{-17}{5} [/tex]
=> The correct answer is [tex]\bf \: b=\frac{-17}{5} [/tex] or [tex]\bf \: b= -3.4 [/tex] (✓).
__________
Hope it helps.
RainbowSalt2222
Can someone please explain how to find a cofunction with the same value as the given expression. Please explain step by step.
Ex. How would you find the cofunction of sin 7°
Answer:
Step-by-step explanation:
-the angles need to add to 90° because they have to e complementary
- the cofunctions come in pairs (sin and cos, tan and cot, sec and csc)
for sin 7°
we know that function sin is paired with cos , and that the angles needs to add to 90° so we have 7° + 83° =90°
sin 7° = cos 83°, cos 83° is a cofunction of sin 7°
Please no links because they dont work :).
Answer:
C
Step-by-step explanation:
10y-3(y+5)
=10y-3y-15
=7y-15
I think the answer is C.
Step-by-step explanation:
hope it will help you
According to the diagram above how long is the unknown piece
Answer:
17 mm
Step-by-step explanation:
11+? = 28
is the same as
28-?=11
The answer is 17mm.
Please mark me as brainliest if that helped. Thank you! ;)
HEELLP PLS-123 Write as a decimal number. 500
Answer:
0.246
hope this helps!
Answer:
It is 0.246
Step-by-step explanation:
123÷500=0.246
if (A=1,2,3) and (B=4,5), find A multiply by B and n(A multiply by B)
Answer:
A×B={(1,4)(1,5)(2,4)(2,5)(3,4)(3,5)}
n(A×B)=12
3. Lucy is a curator at the local art museum. She earns an annual salary of 2 $53,160. Calculate the amount of her paycheck if she is paid monthly. semimonthly, biweekly, or weekly.
Step-by-step explanation:
pleas check your answer in this photo please marks me as brainliests..please and follow me...What is the range of this equation? f(x) = x + 41 – 2
Help me plessss!!
Brainliest to the best answer
If you can with procedimento that i understand how to do that
Step-by-step explanation:
8(b ÷ 2) - (c + 4)
(Putting values of b = 1/2 and c = 1/4)
[tex] = 8( \frac{1}{2} \div 2) - ( \frac{1}{4} + 4)[/tex]
[tex] = 8( \frac{1}{2} \times \frac{1}{2} ) - ( \frac{1 + 16}{4} )[/tex]
[tex] = 8 \times \frac{1}{4} - \frac{17}{4} [/tex]
[tex] = 2 - \frac{17}{4} [/tex]
[tex] = \frac{8 - 17}{4} [/tex]
[tex] = - \frac{9}{4} (ans)[/tex]
Answer:
It is A). -9/4
Step-by-step explanation:
[tex]8(b \div 2) - (c + 4)[/tex]
when b is ½ and c is ¼ :
[tex] = 8( \frac{1}{2} \div 2) - ( \frac{1}{4} + 4) \\ \\ = 8( \frac{1}{4} ) - ( \frac{17}{4} )[/tex]
open brackets:
[tex] = \frac{8}{4} - \frac{17}{4} [/tex]
from LCM formular:
[tex] = \frac{8 - 17}{4} \\ \\ = \frac{ - 9}{4} [/tex]
Solve for f.
–9(–2f − 8) = –6f
f =
Answer:
f = - 3
Step-by-step explanation:
Given
- 9(- 2f - 8) = - 6f ← distribute left side
18f + 72 = - 6f ( add 6f to both sides )
24f + 72 = 0 ( subtract 72 from both sides )
24f = - 72 ( divide both sides by 24 )
f = - 3