Answer:
50Step-by-step explanation:
Speed is represented according to the equation;
Speed = Distance/Time
Given;
Distance d = 400km
Time t = 8 hours
From the formula
s = d/t
s = 400/8
s = 50
Substitute s = 50 back into the formula;
s = d/t
50 = d/t
d = 50t
This expression means that the speed is directly proportional to t where 50 is the constant of proportionality;
Hence the constant of proportionality for the relationship between distance in kilometers and number of hours is 50
Answer: Two constants of proportionality for this situation are 50 and 1/50. The relationship between these two values are that they are both reciprocals.
Step-by-step explanation:
can someone please help me
Answer:
a
Step-by-step explanation:
its the absolute value so x+7.5≤17 plug in a-d into x
The order pair (0 , 0) is a solution to the inequality y < x -2
False
or
True
Answer:
false
Step-by-step explanation:
I put it into a graphing calculator
Answer:
true
Step-by-step explanation:
0 < -2
I hope that helped :)
A pair of pants at Cool Topic originally cost $59. They are on sale for $32. The percent change, rounded to the nearest percent, in the cost of the pants is what and this is an percent increase or decrease
Answer:
Step-by-step explanation:
the answer is 46% I believe its percent increase
Answer:
46% increase
Step-by-step explanation:
A pair of pants at Cool Topic originally cost $59. They are on sale for $32. The percent change, rounded to the nearest percent, in the cost of the pants is what and this is an percent increase or decrease
7
[tex]7 - 9x - 15 + 12x[/tex]
- 9x - 15 + 12x
Answer:
the 6
Step-by-step explanation:
At the market, a pear costs b cents and an apple costs 7 cents
less than a pear. Randy buys 4 pears and an apple. How much
does Randy pay in terms of b?
Answer:
Randy has to pay [tex]\mathbf{5b-7}[/tex]
Step-by-step explanation:
Cost of pear = b
Cost of apple =b-7
Randy buys pears = 4
Apple = 1
We need to find cost in terms of b
So, the equation will be:
[tex]4b+1(b-7)\\4b+b-7\\5b-7[/tex]
So, Randy has to pay [tex]\mathbf{5b-7}[/tex]
Nancy bought 3 hard cover books at the book store if each hard cover book cost $5.10 and she paid with a twenty dollar bill how much change should she get back
Answer:
$4.70
Step-by-step explanation:
3*5.10= 15.30
20-15.30= 4.7
Answer:
she should get $4.70
Step-by-step explanation:
you need to take 5.10 and multiply by 3 to get $15.3 then do 20 minus 15.30
Identify the slope and y-intercept of the graph that represents each linear situation and interpret what
they mean. Then write an equation in slope-intercept form and use it to solve the problem.
A local club charges an initial membership fee as well as a monthly cost. The cost C in dollars is a linear
function of the number of months of membership.
Find the cost of the membership after 9 months.
Membership Cost
Time (months)
Cost ($)
0
$140
6
$452
12
$764
The cost of membership after 9 months is $[
Bottles of sparkling water usually cost $1.69. The grocer changed the price to 4 for $5. You bought one bottle last week for $1.69 and one bottle this week at the 4 for $5 price. Did you pay more or less for the bottle this week at 4 for $5? How much more or less?
Given :
Cost of single bottle, C = $1.69 .
Cost of 4 bottles, B = $5 .
You bought one bottle last week for $1.69 and one bottle this week at the 4 for $5 price.
To Find :
Did you pay more or less for the bottle this week at 4 for $5? How much more or less?
Solution :
Effective price per bottle if we purchase 4 is, E = 5/4 = $1.25 .
Regular price, R = $1.69 .
Change in price, C = $( 1.69 - 1.25 ) = $0.44 .
Therefore, we are paying $0.44 less than the actual price.
Hence, this is the required solution.
Answer:0.44
Step-by-step explanation:
you divide 5 by 4 and then multiply 1.25 by 4 after subtract 1.69 by 0.44
Solve the following equation for x.
logx + log(x + 2) = log(3x)
Answer:
x=1
Step-by-step explanation:
The value for x is 0 or 1.
What is Logarithm?The exponent or power to which a base must be raised to yield a given number. Expressed mathematically, x is the logarithm of n to the base b if [tex]b^x[/tex] = n
Given:
logx + log(x + 2) = log(3x)
Using the Property
log a+ log b= log(ab)
So, logx + log(x + 2) = log(3x)
log ( x(x+ 2)) = log( 3x)
Now, Comparing
x(x+2) = 3x
x² + 2x = 3x
x² = x
x²-x= 0
x(x-1)= 0
x=0 or 1.
Learn more about Logarithm here:
https://brainly.com/question/30085872
#SPJ2
There are five gymnasts on a gymnastics team. The median age of the team is 17 years. The ages, in years, of four of the gymnasts are 16, 19, 15, and 17. Which could NOT be the age, in years, of the fifth gymnast on the team? Group of answer choices
Answer:
20, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5... any age except for 18 be cause 18 is the age of the fifth gymnast.
Are negative fractions always to the right of zero?
Answer:
no because negatives are to the left and positives are to the right
Lincoln memorial geometrical shape
Answer:
hot and sticky
Step-by-step explanation:
hkjogfhh
If there are 2 dots with the same y-axis but different x-axis is that a function
Answer:
Yes
Step-by-step explanation:
Yes, it is a function. As long as a graph passes the vertical line test, it is a function. What would make it not a function is if an x-input had two different outputs (y-values).
Hope this helps!
The ratio of black bags to blue bags is 5 to 3. If there are a total of 40 bags,
then how many blue bags are there?
Answer:
24
Step-by-step explanation:
A store sells a package of 25 trading cards for $5.25. What is the cost of 1 trading
card?
Answer:
$0.21
Step-by-step explanation:
You have to divide 5.25 by 25 since you are trying to figure out the unit price. Once you do this you should get 0.21.
A family earns $1,800 a month. The family's expenses are at least $1,250. How much
money can the family save each month?
Write the inequality to find how much the family can save every month.
X
1,800
Find the solution.
X
Answer:$1800x≥$1,250
Step-by-step explanation:
Since the family saves $1800 per x amount of months, that needs to always be equal to or greater than the expenses to pay them off.
what is 3:1 =6:2 also is it Pls help me
Answer:
1:1
Step-by-step explanation:
3/1=6/2
6/6
1:1
....
The actual length of a soccer field is 300 feet. If the width of the field is 180 feet, then what should the width of the scale drawing be in inches?
Answer:
2160 inches
Step-by-step explanation:
The actual length of a soccer field is 300 feet. If the width of the field is 180 feet, then what should the width of the scale drawing be in inches?
1 foot = 12 inches
Width of the field = 180 feet
Hence:
1 foot = 12 inches
180 feet = x
x = 180 × 12 inches
x = 2160 inches
Width of the scale drawing in inches = 2160 inches
For problems d-g, find the measures of the angles marked
d, e, f, and g in this parallelogram.
HELP ASAP PLEASE WILL MARK BRAINIEST
Last year, a popular song was downloaded 8.71 X 10^7 times. Write the number of
times the song was downloaded in standard form.
Answer:
Actually it would be 87,100,000 in standard form.
Step-by-step explanation:
What is 63 x 49,329 + 60 - 9 x 61 equal?
Jk. Whats 2+2
Brain list if you answer the first one ALSO
Answer: 3107238 XD 2+2=22
Step-by-step explanation:
The nine chips shown below are placed in a bag and then mixed up. Madeline draws one chip from this bag. What is the probability that Madeline draws a chip with an even number? *
Complete question :
Image relating to the question can be found in the attachment below :
Answer:
4/9
Step-by-step explanation:
From the picture :
The nine chips are : 1, 2, 3, 4, 5, 6, 7, 8, 9
Even chips = 2, 4, 6, 8
Probability = number of required outcomes / (number of total possible outcomes)
Probability of drawing a chip with an even number :
P(even number) = number of even chips / total number of chips
P(even number) = 4 / 9
JMHS needs to earn $2500 for the field trip. If they
sold 325 bags of cookies, solve the equation to
determine how many brownies they sold.
Answer:4673
Step-by-step explanation:
I really need help with this ASAP
Answer:
6583.5 cm³
Step-by-step explanation:
[tex]\boxed{volume \: of \: hemisphere = \frac{2}{3}\pi {r}^{3} }[/tex]
[tex]\boxed{volume \: of \: cylinder = \pi {r}^{2} h}[/tex]
Thus, volume of half cylinder= ½πr²h
Since both has a radius of 10.5cm, substitute r= 10.5 into both formulas. The value of h is 24 since it is given that the height of the half cylinder is 24cm.
Volume of composite solid
[tex] = \frac{2}{3}( \frac{22}{7})(10.5^{3} ) + \frac{1}{2} ( \frac{22}{7} )( {10.5}^{2} )(24) \\ = 2425.5 + 4158 \\ = 6583.5 \: cm^{3} [/tex]
Find X if f(x)=18x+26 and f(x) = 2x+10
Answer:
x = -1
Step-by-step explanation:
Start out by making the equations equal to each other since we are trying to find x (if x is the same for both equations, which it is for this problem due to the equations shown above).
18x + 26 = 2x + 10
Now that the equation is set up to find x, we need to get x by itself. Now subtract 2x on all sides to get all the x variables on the same side. Apply the same logic for the normal numbers by subtracting 26 on all sides to get the normal numbers on one side. You should end up with the numbers shown below for this step:
18x + 26 = 2x + 10
-2x -26 -2x -26
16x = -16
For the final step, remember that we want x by itself, so we have to divide both sides by 16 to get x by itself. After dividing both sides, you should end up with x = -1.
16x = -16
16 16
x = -1
Hope this helps!
Find the missing number. Enter your answer.
40
x
?
160
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
its right
16
Sam's dad drove him to a soccer tournament.
They drove 240 miles in 4 hours.
About how far did they have to drive every hour?
Answer:
miles per hour.
Answer:
60 miles per hour
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
around 60 miles an hour.. you just divide 240 by 4
what is the absolute of -10.5
A- -10.5
B- 0
C- 10.5
Answer:
C- 10.5
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At the beginning of the month,Kimberly had $65.78. Since then,she has received three payments of $32.50 from her babysitting job. Kimberly did not spend any money,how much money does she have now?
Answer:
98.28
Step-by-step explanation: