Answers
Answer:
Um
Step-by-step explanation:
Related Questions
On a drive from your home to town, you
wish to average 60 mph. The distance from
your home to town is 78 miles. However,
at 39 miles (half way), you find you have
averaged only 45 mph.
What average speed must you maintain in
the remaining distance in order to have an
overall average speed of 60 mph?
Answer in units of mph.
Answers
Answer:
Your average speed must be 90 mph in the remaining distance in order to have overall average speed of 60 mph
Step-by-step explanation:
The rule of distance is d = v × t, where
v is the average speedt is the time∵ You wish to average 60 mph on a drive from your home to town
∵ The distance from your home to town is 78 miles
→ Find the time of your journey using the rule above
∴ 78 = 60 × t
→ Divide both sides by 60
∴ [tex]\frac{78}{60}[/tex] = t
∴ t = [tex]\frac{13}{10}[/tex] hours
∵ You have averaged only 45 mph in the first 39 miles (half way)
∴ v1 = 45 mph
∴ d1 = 39 miles
→ Find the time of this part
∴ 39 = 45 × t1
→ Divide both sides by 45
∴ [tex]\frac{39}{45}[/tex] = t1
∴ t1 = [tex]\frac{13}{15}[/tex] hour
→ Subtract the time of the first part from the time of the journey to
find the time for the second part
∵ t2 = t - t1
∴ t2 = [tex]\frac{13}{10}[/tex] - [tex]\frac{13}{15}[/tex]
∴ t2 = [tex]\frac{13}{30}[/tex] hour
→ Now let us find the average speed of the second part of his journey
∵ d2 = 39 miles ⇒ (78 - 39)
∵ t2 = [tex]\frac{13}{30}[/tex] hour
∴ 39 = v2 × [tex]\frac{13}{30}[/tex]
→ Divide both sides by [tex]\frac{13}{30}[/tex]
∴ 39 ÷ [tex]\frac{13}{30}[/tex] = v2
∴ 90 = v2
∴ v2 = 90 mph
∴ Your average speed must be 90 mph in the remaining distance in
order to have overall average speed of 60 mph
What is wrong with the picture? Show work.
Answers
Answer:
The mistake is in the angles
Either both should be 69° or 70°Hope this helps you Stay happy and safe Do mark as brainliest ✌️Solve for S
P=4s
Please answer!!!!
Answers
Answer:
b
Step-by-step explanation:
divide both sides of the equation by 4 to leave s by itself
What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?
Answers
The distance horizontally is 15 units because 7-(-8) = 15
The distance vertically is 8 units because 8-0 = 0
Pythagorean theorem
a2 + b2 = c2
(225) + (64) = (289)
Square root 289 = 17 is the distance
What value of p makes this equation true?
3/4 p- 1/4p + 3 = -2
Answers
Answer:
-10
Step-by-step explanation:
p/2=-5
p=-10
Answer:
-10
Step-by-step explanation:
3/4p-1/4p+3=-2
1/2p+3=-2
1/2p=-5
-10
Find mo 8 5 m n o
Mo=
Answers
Answer:
MO is 13 units
Step-by-step explanation:
If point lies on a segment, then this point divides the segment into two parts, the sum of their lengths equals the length of the segment
∵ Point N ∈ segment MO
→ That means point N divide segments MO to two parts MN and NO
∴ Point N divides segment MO into two parts MN and NO
→ That mans the length of segment MO equals to the sum of
lengths of MN and NO
∴ MO = MN + NO
∵ MN = 8 units
∵ NO = 5 units
∴ MO = 8 + 5
∴ MO = 13 units
!!!TIME LIMIT PLZ HURRY!!!Which describes the relationship between <1 and <2?
Answers
Answer:
adjacent
Step-by-step explanation:
this just means they are next to each other, like they share a ray
Answer:
they are adjacent
Step-by-step explanation:
Adjacent means they are next to each other; and both these angles are right beside each other
Harry drove 5 hours on the freeway. then decreased his speed by 20 miles per hour and drove for 3 more hours on a country road. if his total trip was 396 miles, than what was his speed on the freeway?
Answers
Answer:
What are the options
Step-by-step explanation:
PLS NEED HELP! need the answer WITH the work please!
Answers
People living in a society where one person rules by force have which type of government?
Answers
Answer:
An autocracy is a government structure in which the ultimate political authority is concentrated in one person's hands.
Hope this helps please give me brainliest!
God bless!
An autocracy.
An autocracy is a system of government in which a supreme political power is concentrated in the hands of one person.
A jewelry store is having a 45% off sale for all necklaces. During this sale, what is the cost of a necklace that regularly costs $59.98?
Answers
Answer:
32.99
Step-by-step explanation:
59.98(45%)=26.99
59.98-26.99=32.99
Answer:
$32.99, the discount took off $26.99.
Step-by-step explanation:
Good luck!
a horizontal line , such as y=4, has a slope of what
Answers
Answer:
0
Step-by-step explanation:
A horizontal line has a slope of zero and a vertical line has an undefined slope
a chef has 5 5/8 pound beef filet. she slices the fillet into 8 ounce steaks A. how many pounds is each steak. write your answer as a fraction in simplest form. B. how many 8 ounce steaks can the chef create from the fillet? How many ounces of beef are left over
Answers
Answer:
1/2 pound
90 ounces
11
Remaining 2 ounces
Step-by-step explanation:
Beef filet = 5 5/8 pounds
Slices of fillet = 8 ounces
A. how many pounds is each steak. write your answer as a fraction in simplest form.
1 pound = 16 ounces
Pounds of each steak = ounces per steak / ounces per pound
= 8 ounces / 16 ounces
= 1/2 pound
B. how many 8 ounce steaks can the chef create from the fillet? How many ounces of beef are left over
Beef filet = 5 5/8 pounds
= 45 / 8 pounds
Convert to ounces
= 90 ounces
Number of 8 ounces the chef can create = 90 ounces / 8 ounces
= 11.25
= 11
Remaining 2 ounces of beef
Find the Slope And Y- Intercept .
Answers
Answer:
slope= 3/4
y intercept= 1/2
Step-by-step explanation:
First find the slope using the formula y2-y1/x2-x1.
the points given: (-6,-4) and (2,2)
so plug in the points into the formula and you'll have:
2-(-4)/2-(-6)=
2+4/2+6=
6/8=
3/4
to find the y intercept, use the formula y-y1=m(x-x1)
y+4=3/4(x+6)
y+4=3/4x+9/2
y=3/4x+1/2
How many lines of symmetry does this figure have?
Pls help
Answers
Answer:
4
Step-by-step explanation:
This figure has 4 lines of symmetry
The correct Standard Form of the equation y=3/2x+3
Answers
Answer:
3x-2y=-6
My mom listening to wap
Jonathan purchases 15 pounds of bananas for $.49 a pound. How much did Jonathan pay
for his bananas?
Answers
Answer:
$7.35
Step-by-step explanation:
To find the answer to this question, you would need to multiply 15 times .49 which would equal 7.35
A scuba diver swam 96 ft.
below the surface of the
lake. He then swims up 49
ft. What is his depth now?
Answers
Answer:
96-49=47
Step-by-step explanation:
he goes down then up so 47
Answer:
-47
Step-by-step explanation:
-96 + 49
-47
Shelley and her friend are working together on a group homework assignment. Shelley has
completed 2/12 of the problems and her friend has completed another 9/12 of them.
Together, what fraction of the problems have they completed so far?
Answers
Answer: The answer is 11/12 problems
Step-by-step explanation:
You add 2/12 + 9/12 which gives you a result of 11/12
Which statement is true regarding the graphed functions?
f(0) = g(0)
f(-2) = g(-2)
f(0) = g(-2)
f(-2)=g(0)
Answers
The temperature at 2:00 AM was -15° Fahrenheit. The temperature rose by 3 ° each hour. What was the temperature at 6:00AM?
Answers
Answer:
9 degrees farenehit
Step-by-step explanation:
=====================================================
Explanation:
x = number of hours since 2 AM
y = temperature in degrees Fahrenheit
The starting temperature is -15 degrees, so the y intercept is b = -15.
The temperature goes up 3 degrees each hour, so the slope is m = 3
The equation is y = 3x-15
Now plug in x = 4 since 6 AM is four hours after 2 AM.
We get the following
y = 3x-15
y = 3*4-15
y = 12-15
y = -3
The temperature at 6 AM is -3 degrees Fahrenheit.
-------------------------
Check:
Start at -15 and add 3 for each hour
It might help to make a number line.
2 AM = -15 degrees
3 AM = -12 degrees
4 AM = -9 degrees
5 AM = -6 degrees
6 AM = -3 degrees
This confirms the answer.
If the length of a rectangle is 3x+2 and the width is 2(x+4) what is the value of x
Explanation
Answers
Answer:
To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides.
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
3x+2=2(x+4)
3x+2=2x+8
3x=2x+6
X=6
Need HELP PLEASE! will mark brainliest and everything else!
THX
Answers
Answer:
0
Step-by-step explanation:
Order of operation:
P-parenthesis
E-exponents
M-multiplication
D-division
A-addition
S-subtraction
Follow this order of operation in order.
If there are parenthesis when solving an equation, do the parenthesis first, if there are exponents and multiplication, do exponents before you do multiplication.
14 + 5(-3) + 1
Multiply 5 * -3
14 + -15 + 1
Add 14 + (-15)
-1 + 1
Add -1 + 1
0
Hope this helps and pls do mark me brainliest:)
Answer:
0
I hope this helps!
Solve each proportion for x. Round to the nearest tenth.
117/45=x/95
Answers
Answer: x=247
Step-by-step explanation:
1. Set up the equation
117/45=x/95
2. Cross multiply
117(95) = 11115
45(x)= 45x
3. Set both equal to each other
11115=45x
4. Divide 45 on each side
11115/45 = 45x/45
5. Solve for x
x=247
Hope this helps :)
-Morgan
FIRST RIGHT GETS BRAINLIEST
Answers
Answer:
-4+-6=-10
Step-by-step explanation:
Solve for x and y in the equation.
xy=80 and log x - 2 log y =1
Answers
9514 1404 393
Answer:
(x, y) = (40, 2)
Step-by-step explanation:
Taking the antilog of the second equation, we have ...
x/y^2 = 10
x = 10y^2
Substituting this into the first equation gives ...
(10y^2)y = 80
y^3 = 8 . . . . . . . . divide by 10
y = 2 . . . . . . . . . . cube root
x = 10·2^2 = 40
The solution is (x, y) = (40, 2).
Hellpp Hellpp helpppp where did they get 0.8 from
Answers
Answer:
All they are doing is finding what a 20% drop would be. You do that by multiplying the value by .8 which gives you the total accounting for a 20% drop.
Step-by-step explanation:
The cost of making a phone is $152. A store sells the phone for $281.20 select all the the expressions that could be used to find the percentage of markup for the ohone
Answers
Answer:
[tex]\frac{100 * (281.20 - 152)}{152}[/tex][tex](\frac{281.20}{152}-1 ) * 100[/tex]Step-by-step explanation:
The above two expressions can be used to find the percentage of mark-up for the phone.
The first expression for instance will give;
[tex]= \frac{100 * (281.20 - 152)}{152}\\\\= \frac{12,920}{152}\\\\= 85[/tex]
= 85%
The second expression will give;
[tex]= (\frac{281.20}{152}-1 ) * 100\\\\= 0.85 * 100\\\\= 85[/tex]
= 85%
Both of them will show that an 85% mark-up has been added to the cost of the phone.
Mark reeds 42 pages of a book every 3/4 of an hour write an equation that models the relationship between Z, the number of hours mark reads, NY, the number of pages of the book He reads
Answers
Answer:
The equation that models the relationship between Z and N is N = 56 Z
Step-by-step explanation:
The form of the linear equation is y = m x + b, where
m is the rate ⇒ slopeb is the initial amount ⇒ y-intercept∵ Mark reads 42 pages of a book every [tex]\frac{3}{4}[/tex] of an hour
→ Find his rate per hour by dividing the number of pages by its time
∴ His rate of reading = 42 ÷ [tex]\frac{3}{4}[/tex] = 42 × [tex]\frac{4}{3}[/tex] = 56 pages per hour
∵ His rate = 56 pages/hour
∴ m = 56
∵ Z represents the number of hours Mark reads
→ That means replace x in the form of the equation above with Z
∵ N represents the number of pages of the book he reads
→ That means replace y in the form of the equation above with N
∴ N = 56 Z + b
∵ There is no initial amount of reading
∴ b = 0
∴ N = 56 Z
The equation that models the relationship between Z and N is N = 56 Z
What distance will a car traveling at a speed of 15 m/s cover in 300 s?
Answers
Distance formula: d = st
d = 15 * 300
d = 4,500m
So they will travel 4,500m! Have a nice day and mark brainliest if possible :)
[tex] \red { \green {\boxed {\boxed{Answer}}}}[/tex]
[tex]4500 \: m[/tex]
Step-by-step explanation:
[tex]d = s \times t[/tex]
[tex]s = 15[/tex]
[tex]t = 300[/tex]
[tex]d = 15 \times 300[/tex]
[tex]d = 4500[/tex]
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