Answer:
3.75 or 3 3/4 miles an hour
Step-by-step explanation:
2 1/4 divided by 3 is 0.75 multiplied by 5 is 3.75 which in fraction form is 3 3/4
The product of a number and -8 decrease by 13 is less than or equal to 27
Answer:
less than
Step-by-step explanation:
Answer:
less than
Step-by-step explanation:
You have 42 coins valued at $6.00. Some of the coins some are quartersFind the number you have of each. Set up and solve a system of equations needed to solve the problem.
Complete Question
Mark has 42 coins consisting of dimes and quarters. the total value of his coins is $6. How many of each type of coin does he have?
Answer:
The number of dimes = d = 30 dimes
The number of quarters = q = 12 quarters
Step-by-step explanation:
Let us represent
The number of dimes = d
The number of quarters = q
A dime is worth 10 cents = 0.10d
A quarter is worth 25 cents = 0.25q
Mark has 42 coins consisting of dimes and quarters.
q + d = 42...... Equation 1
q = 42 - d
The total value of his coins is $6.
0.1d + 0.25q = 6
We substitute 42 - d for q
0.1d + 0.25(42 - d) = 6
0.1d + 10.5 - 0.25d = 6
10.5 - 6 = 0.25d - 0.1d
4.5 = 0.15d
d = 4.5/0.15
d = 30 dimes
Solving for q
q = 42 - d
q = 42 - 30
q = 12 dimes
Therefore,
The number of dimes = d = 30 dimes
The number of quarters = q = 12 quarters
Which coupon should Johnny use to save the most money on a rosebush originally priced at $40? 70% off on any item or 25% Off any rose bush
I need the right answer 20 brainly points
Mary is planning to provide online math and french language tutoring sessions. The math session will be 45 minutes long, and the french sessions will be 30 minutes long. She plans to work no more than 30 hours per week and does not want to provide more than 30 french sessions in any one week l. Let m represent the number of math sessions, and f represent the number of french sessions mary will offer during the week. Which system of inequalities represents the constraints of the given situation?
Answer:
3/4m + 1/2f ≤ 30f ≤ 30Step-by-step explanation:
Math session = 45 min = 3/4 hrFrench session = 30 min = 1/2 hrNumber of math sessions = m, total math hours = 3/4mNumber of French sessions = f, total French hours = 1/2fTotal hours constraint:
3/4m + 1/2f ≤ 30Number of session constraint:
f ≤ 30So the system is:
3/4m + 1/2f ≤ 30f ≤ 30Answer:
3/4m + 1/2f ≤ 30
f ≤ 30
Step-by-step explanation:
Simplify
‐19 ‐ 7( ‐17z + 13)
4n ‐ 3( ‐9n + 13)
Answer:
for the first one it's 119z−110
the second one is 31n−39
i'm not sure if you wanted both together
so here just incase
31n+119z−149
Step-by-step explanation:
Answer:
the first answer is 119z-110
the second on is 31n-39
Step-by-step explanation:
So this is Writing Expressions practice.
17 added to 15
An expression is: (answer)
Answer:
17+15=32.............
Solve the system of equations using elimination
2x + y = 5
-1x + y = 2
Answer:
(1, 3 )
Step-by-step explanation:
Given the 2 equations
2x + y = 5 → (1)
- x + y = 2 → (2)
Rearrange (1) expressing y in terms of x by subtracting 2x fro both sides
y = 5 - 2x → (3)
Substitute y = 5 - 2x into (2)
- x + 5 - 2x = 2
- 3x + 5 = 2 ( subtract 5 from both sides )
- 3x = - 3 ( divide both sides by - 3 )
x = 1
Substitute x = 1 into (3) for corresponding value of y
y = 5 - 2(1) = 5 - 2 = 3
solution is (1, 3 )
If you could help I would really appreciate it, but if not that’s fine. Thank you.
Evaluate d3a2−(c+b) if a=−2 , b=3 , c=−12 , and d=−4 . need help
Answer:
-7
Step-by-step explanation:
-247 is the value of expression d³a²−(c+b) for a=−2 , b=3 , c=−12 , and d=−4 .
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is d³a²−(c+b)
d cube times of a square minus c plus d
a,b, c and d are variables
plus and minus are operators.
Given values of a, b c and d are
a=−2 , b=3 , c=−12 , and d=−4 .
Substitute these values in expression
(-4)³(-2)²-(-12+3)
(-64)(4)-(-9)
(-64)(4)+9
Minus two hundred fifty six plus nine
-256+9
Two hundred forty seven
-247
Hence -247 is the value of expression d³a²−(c+b) for a=−2 , b=3 , c=−12 , and d=−4 .
To learn more on Expressions click:
https://brainly.com/question/14083225
#SPJ2
Randalstown rugby club play 20 matches and win 17 of there matches. What percentage of the matches did they win
Answer:
They won 85% of their matches
Step-by-step explanation:
Here, we want to calculate the percentage of wins
To do this, we apply the following formula;
number of wins/number of games * 100%
That would be;
17/20 * 100%
= 17 * 5 = 85%
Can someone help me asap on this question geometry
Answer:
3rd one
Step-by-step explanation:
what are the coordinates of point Q
(-4,2 1/2)
(-2 1/2,4)
(2 1/2,4)
(4,2 1/2)
5/12=3/2c+8/3 it is fractions btw
Answer: c = -3/2
Step-by-step explanation:
1. Subtract 8/3 from both sides —> you get 3/2c = -9/4
2. Divide both sides by 3/2 —> -9/4 x 2/3 = -3/2
What is 230 kilometers converted to meters per minute?
Your answer would be 230,000
will 1, 2, 5 form a right triangle
Step-by-step explanation:
in my opinion, yes it would.
PLS HELP ME WITH THE ANSWER
!!!
Answer: m is less than or equal to -7
Step-by-step explanation:
Step-by-step explanation:
[tex]-2m - 3 \leq 11[/tex]
[tex]-2m \leq 14[/tex] (adding 3 to both sides)
[tex]m\geq -7[/tex] (dividing by a negative switches the sign around)
Hope this helps!
8a - 1.6c when a = 12 and b = 3
Answer:
96-1.6c hope this helps
Step-by-step explanation:
Please help me i need help to solve this equation in the screen shot:)
Answer: x= 25
Step-by-step explanation:
Jesse has to save 60% of the total cost to go to a sports camp during the summer. The total cost was $500. What was the total amount Jesse saved? Make sure to explain how you got it.
Answer:
$300
Step-by-step explanation:
The total cost is $500 so you must find 60% of that. To find percentage divide 60% by 100 which turns it into .60, and then you multiply .60 by 500. This equals to 300. So, Jesse 60% of 500 is 300, and so Jesse had to save $300
Write the function in lowest terms: 36a^3 bc^2/ 24ab^4 c^2
(sorry for bad photo quality, i'm using the computer camera)
Answer: 3a^2/2b^3
Step-by-step explanation: I'm doing this term by term.
36/24 = 3/2a^3/a = a^2b/b^4 = 1/b^3c^2/c^2 = 1Final answer: 3a^2/2b^3
All number is numberator went to numerator. All numbers in denominator went to denominator.At galaxy car wash, they can clean 76 cars in 4 hours. At this rate how many cars can they clean in 14 hours?
Answer:
266 Cars
Step-by-step explanation:
They clean 19 cars an hour. Therefore, 19 x 14 = 266 Cars.
Which figure represents a reflection of figure 3?
can someone please help!!
Answer:
figure one:)
Step-by-step explanation:
Answer:
Step-by-step explanation:
5
chase measured a line for his are project. it is 200 mm long
how many cm is this line
please help me and please dont put a incorrect number just for points
Answer:
Step-by-step explanation:
You multiply by the reciprocal of 1/5 to make the equation 1/3*5/1 to get 5/3
if u dont know this *=multiplication
Find the product. Enter your answer in simplest form
Which has a greater slope (Rate of change)?
the graph
the equation
Answer:
The graph
Step-by-step explanation:
If you see, the graph goes up 40 for every 1 is goes over. The equation will go up 35 for every 1 it goes over. Thus, the graph has the greater slope.
What are the outputs of the following function?
{(-3, 2), (-4, 2), (8, 3), (7, 1)}
{1, 2, 3}
{3, 2, 1, 2}
{-3, -4, 2, 1, 7, 8, 3}
{1, 2, 3, -4, 7}
Answer:
Answer: {1, 2, 3}
Step-by-step explanation:
Functions
They are relations between input values and output values such that each input has one and only one output.
The function:
{(-3, 2), (-4, 2), (8, 3), (7, 1)}
Consists of four ordered pairs where the first component is the input value and the second value is the output value.
It can be identified that the output values are:
{2,3,1}
In any order, thus the first choice is correct.
Answer: {1, 2, 3}
Solve for f(-2).
f(x) = -3x + 3
f(-2) = [?]
Objects on Jupiter weigh 240% of their weight on Earth. If an object weighs 30.5 pounds on Earth, how many pounds would it weigh on Jupiter?
Answer:
732
Step-by-step explanation:
It is 732 because if we start off with 30.5 and then get our 240%, what will happen next is that we will move the decimal spot 2 places on the 240%. So 240% now becomes .240 and NOT a percent yet because we need to do one more thing. After we do this we can then do 30.5x.240 which leads to 7.32. But because this number is too small and it even wouldnt make sense in this question, now we move the decimal spot to the right, so before we did left but now we go right. And when we do this it will finally give out answer of 732 pounds.
When the expression 10^2021 − 2021 is evaluated, the result is a very large number.
You probably do not have enough time to perform the calculation. So, in an
effort to save you some time and paper, instead of evaluating the expression
10^2021 − 2021, determine the sum of the digits in the difference. How do I do this pls
Answer:
18,176
Step-by-step explanation:
Figure out an easier thing to do: 1000 - 2021 = 9,797.
Therefore, our answer will be like 9999999999999999999999997979. Out of all of these digits, there are only 2 that arent nines. We know the amount of digits since it's 10^2021 power. We will have one less since we are subtracting 2021. Therefore, 2020 digits in total. Now we know of those 2020 digits, 2 of them are 7, therefore 2018 of them are 9s. That means do 2018(9) + 2(7) = 14 + 18,162 = 18,176.