Answer:
Araaaaaaaaaaa araaaaaaaaa
1. Calculate the speed
for a car that went a distance of 125 miles in
2 hours time? Provide the speed in kilometer per hour.
Answer:
62.5 miles per hour
Step-by-step explanation:
Given data
distance= 125m
time= 2 hours
We know that
speed= distance/time
Subsitute
Speed= 125/2
speed= 62.5 miles per hour
Linda wants to buy a pair of shoes for $40 and
sees socks on sale for $5 each. If she has $60 to
spend, how many pairs of socks can she buy?
Answer:
4 pirs of socks
Step-by-step explanation:
Carrie records the weights, in ounces, of 8 mice for a science project in the list below. What is the median weight of the mice?
0.71, 0.66, 0.63, 0.73,
0.70, 0.68, 0.66, 0.66
A. 0.63 oz
B. 0.66 oz
C. 0.67 oz
D. 0.73 oz
Answer:
c = 0.67 oz
Step-by-step explanation:
the answer is c
The median weight of the mice is approximately 0.52 oz.
What is a median?A median is a statistical measure of central tendency that represents the middle value of a data set when it is arranged in numerical order.
To find the median, you need to list the values of the data set in numerical order and then identify the middle value.
We have,
To find the median weight of the mice, we need to arrange the weights in ascending order and then determine the middle value.
0.63, 0.66, 0.66, 0.66, 0.68, 0.70, 0.71, 0.73
Since there are 8 mice in total, the median will be the average of the two middle values when the data set has an even number of values.
In this case, the two middle values are 0.68 and 0.70.
Median = (0.68 + 0.70) / 2 = 0.68 + 0.35 = 0.68 + 0.35 = 1.03/2 = 0.515
Rounded to the nearest hundredth, the median weight of the mice is approximately 0.52 oz.
Therefore,
The median weight of the mice is approximately 0.52 oz.
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Consider the diagram and angle measures shown below What is the value of m angle 3 ?
Answer:
The answer is below
Step-by-step explanation:
m∠lon = m∠2 (vertical opposite angles are equal)
m∠lon = m∠1 (corresponding angles are equal).
Therefore; m∠2 = m∠1 (substitution property)
3x + 25 = 7x + 5
Subtracting 5 and 3x from both sides of the equation:
3x + 25 - 5 - 3x = 7x + 5 - 5 - 3x
4x = 20
dividing through by 4:
4x / 4 = 20 / 4
x = 5
Given that:
m∠3 = -2x + 70
substituting x = 5:
m∠3 = -2(5) + 70 = 60
m∠3 = 60°
Therefore:
m∠4 + m∠2 + m∠3 = 180° (substitution)
(155 - 3x) + (7x + 5) + (-2x + 70) = 180
(-3x + 7x - 2x) + (155 + 5 + 70) = 180
2x + 230 = 180
2x = -50
x = -25
Therefore; m∠3 = -2x + 70 = -2(-25) + 70 = 50 + 70
m∠3 = 120°
The sun of 2 numbers is 39 and their difference is 5. What is the larger number? Please also explain HOW TO get that answer!!!! PLSSS ♀️
If p + q has a value that is exactly 1/3 less than p, what is the value of q
Answer:
- ⅓
Step-by-step explanation:
p + q = p - ⅓
q = (p - p) - ⅓
q = - ⅓
Nine cereal bars are shared equally by 4 students. How many does each student receive?
Answer:
Each student gets 2.25 pieces
of granola bar.
Step-by-step explanation:
i pretty much divided 9 by 4 and got 2 with a Remainder of 1 aka R.1 , depends if they want the second one though
If Africa's plane traveled at a constant speed of 365 miles per hour for 8 hours, how far did the
plane travel?
(5 Points)
Enter your answer
Submit
Answer:
2920 miles
Step-by-step explanation:
365 times 8 = 2920
You are responsible for buying a week's supply of food for the dogs and cats at a local shelter, Pawsitively Pets. The cost of food for each dog is twice as much as for a cat. You need to feed 16 cats and 10 dogs. Your budget is $720. How much can you spend on each dog for food? How much can you spend on each cat for food? how would you set up this problem in a system of equations
Answer: Dog=$40 per a dog and $20 per a cat
Step-by-step explanation:
Let the dog be x and cat be y
x=2y
10x=20y
20y+16y=32y
720/32=20
2x20=40
x=40
y=20
X^3 = 64
Solve it pls
Answer:
x=4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
Correct
Multiply: (3x - 5)(-x + 4)
Applying the distributive property, the expression becomes (3x)(-x) + (3x)(4) + (-5)(-x) + (-5)(4).
What is the simplified product in standard form?
Answer:
-3x²+17x-20
Step-by-step explanation:
When you apply the distributive property (which you did correctly), you simply multiply each number or variable in which you have to distribute it to (which again you wrote correctly) and then you add them all together.
(3x)(-x)=-3x²
+
(3x)(4)=12x
+
(-5)(-x)=5x
+
(-5)(4)=-20
Add those and you will get your answer. Hope this helped :)
Answer:
What is the simplified product in standard form?
✔ –3 x2 + ✔ 17 x + ✔ –20
Step-by-step explanation:
-3, 17, -20
Plss help me ASAP pls
Help me please and ty <3
Answer:
X=128
Step-by-step explanation:
Those are vertical angles, meaning they equal each other. So:
X=128
A Canadian football field is 110 yd long and an American football field is 100 yd
long. How many feet longer is the Canadian Fleld?
Answer:
30 feet
Step-by-step explanation:
110-100=10 yards=30 feet
Step-by-step explanation:
30 feet 100-100=10 ×3 =30
As an estimation we are told 5 miles is 8 km. Convert 10 miles to km.
Answer:
16
The simplest way to do it is:
5 x 2 = 10
8 x 2 = 16
Ally the turtle was born with 1 square on her shell, as in the first picture below. When she was 1 year old, 8
new squares appeared around the old squares, as in the second picture below. Each year, a new group of
squares appeared around the old squares.
How many new squares appeared on Ally's shell each year? Extend the pattern and fill in the blanks in the
chart below.
Answer:
2=16 3=24 spot on her shell
Step-by-step explanation:
The number of squares appeared on Ally's shell at the age of 2 is 64 and the age of 3 is 512.
What is a Square ?"A square is a two-dimensional plane figure with four equal sides and all the four angles are equal to 90 degrees. The properties of rectangle are somewhat similar to a square, but the difference between the two is, a rectangle has only its opposite sides equal. Therefore, a rectangle is called a square only if all its four sides are of equal length."
Given,
When the turtle was 1 year old the number of squares = 8
When the turtle was 2 year old the number of squares = 8 * 8 = 64
When the turtle was 3 year old the number of squares = 64 * 8 = 512
Hence, square at age 1 = 8, squares at age 2 = 64, squares at age 3 = 512.
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If you add Natalie's age and Fred's age, the result is 40. If you add Fred's age to 4 timesNatalie's age, the result is 76. Write and solve a system of equations to find how old Fred and Natalie are.
Answer:
Natalie is 12 years and Fred is 28 years
Step-by-step explanation:
lets assume Natalie's age is X and Fred's age is Y
From the first sentence: X+Y = 40
From the second sentence: Y + 4X = 76
lets rearrange the equations
X+Y =40 ....... equation 1
4X+Y=76........ equation 2
To solve both equations, we will have to look for a way to eliminate one of the unknown to leave us with one unknown. since there are two +Y in both equations, we can subtract both equations to eliminate Y. Please note that whatever you do to one of the unknown in this equations applies to all other numbers & alphabets
So: 1. X - 4X = -3X
2. Y - Y = 0
3. 40 -76 = -36
writing the equation as one will be -3X = -36
X = 12
Put X = 12 into any of the equation
By putting X as 12 into equation 1 : 12 + Y = 40
Y = 40 -12 =28
Recall that Natalie is X and Fred is Y
Therefore Natalie is 12 years and Fred is 28 years
be
To crosscheck put in the gotten answers into the equations
X+Y =40 ....... 12 + 28 = 40
4X+Y=76........ 4(12) + 28 = 76
Given the rule "Divide by 4, then add 2." Complete the following table.
Input Output
0
2
4
6
8
10
The table is completed below.
Input 0 2 4 6 8 10
Output 2 3/2 3 5/2 4 7/2
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
Let 'y' be the output and 'x' be the input.
Given the rule "Divide by 4, then add 2." Complete the following table. Then the function is given as,
y = (x / 4) + 2
At x = 0, then we have
y = (0 / 4) + 2 = 2
At x = 2, then we have
y = (2 / 4) + 2 = 3/2
At x = 4, then we have
y = (4 / 4) + 2 = 3
At x = 0, then we have
y = (0 / 4) + 2 = 2
At x = 0, then we have
y = (0 / 4) + 2 = 2
At x = 6, then we have
y = (6 / 4) + 2 = 5/2
At x = 8, then we have
y = (8 / 4) + 2 = 4
At x = 10, then we have
y = (10 / 4) + 2 = 7/2
More about the function link is given below.
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How do I graph the following features:
Slope = 1/4
Y-intercept = 3
Answer:
Ok so the information you gave is :-
Slope = 1/4
Y-intercept = 3
So first you will graph the y-intercept. So the y-intercept is 3 or (0, 3). Then you will plot the slope which is 1/4. If you know that slope = rise/run. So you will go 1 unit up and 4 units to the right. Hope this helps, thank you and if you need help then I am here.
While shopping, Dawn finds a backpack that she likes on the sale rack. Its original price is $60,
but everything on the rack comes with a 30% discount. Dawn also has a coupon for 15% off of
her total purchase.
Dawn says, "Thirty percent and fifteen percent make forty-five percent and 45% of $60 is $33,
so it will cost $33."
Is Dawn correct? Explain why or why not. Be sure to support your reasoning with a
mathematical model.
No. Because 33 $ is the money deducted from the 60 $. Dawn bought everything for less than 60 $.
So, if Dawn purchases everything on the rack with a 30% discount and 15% coupon the total will indeed make 45%.
We have to take 100% - 45%= 55% to know the reduction number. Let's proceed to the calculations now.
100%= 60 $
1%=60/100
55%= 60/100 × 55 = 33 $
Now NOTE; 33 $ is the money reduced from the 60 $. So, logically, 33 $ isn't the amount which Dawn purchased the whole rack.
To find the amount at which she purchased everything, we need to do,
60 $ - 33 $ = 27 $
- 2.8f +0.9f – 11-9=
Answer?
Answer:
-1.9f-20
Step-by-step explanation:
-1.9f-20
lmk if its right!
How do I solve x/10 +4 = 10
Answer:
14 and simplify to 4
Step-by-step explanation:
Add 1010 to both sides.
x=4+10
x=4+10
2 Simplify 4+104+10 to 1414.
x=14
x=14
x−10=4
1 Let x=14x=14.
14-10=4
14−10=4
2 Simplify 14-1014−10 to 44.
4=4
4=4
Answer:
x=60
Solve for x by simplying both sides of the equation,then isolate the variable.Im not sure if this help but i tried.
Find the value of x.
Answer:
x = 25
Step-by-step explanation:
it's an isosceles triangle so base angles are the same
3x - 30 = 45
Add 30 on both sides
3x = 75
divide both sides by 3
x = 25
why does cross multiplication work / why cross multiplication works
need asap! thank you :)
Cross multiply only when you need to determine if one fraction is greater than another, or if you are trying to find a missing numerator or denominator in equivalent fractions.
Fill in the blanks below so the answer is x = 3
X +
= 10
Help please I’m in a test rn btw
Answer:
3 and 1
Step-by-step explanation:
To make this equation true you have to fill in the blank spots so x is 3
So I simply multiplied 3 times x which is 3x+ blank is 10
if I want x to be 3 then I fill in the blank for 1
now I do additive inverse to get the x by itself
subtract 1 on both sides
the equation is now 3x=9
Divide 3 in each sides and x=3
Answer:
1x + 7 = 10
-4x + 22 = 10
Step-by-step explanation:
Equations
We are given the following expression:
__x + __ = 10
Where the spaces must be filled with any value that makes x=3 the solution to the equation.
Let's call a and b the variables to fill up the spaces:
ax + b = 10
For x=3, the following equation must stand:
3a + b = 10
Any combination of a and b that makes true the above equation will solve the problem. Let's solve for b:
b = 10 - 3a
Make a=1, thus b = 10 - 3 = 7
So the equation:
1x + 7 = 10
Has the solution x=3
For a = -4, b = 10+12 = 22
Another combination is:
-4x + 22 = 10
During a game, Dennis lost 50 points in the first round and then lost 75 more points in the second round. Write an addition expression for the
change in Dennis's score after two rounds, and then find the change.
Enter the correct answers in the boxes.
Help
Answer:
-125
Step-by-step explanation:
add 50 and 75 =125 make in negative
The additional expression for the change in Dennis's score after two rounds is (-50) + (-75) and the value of change is -125.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
It is given that:
During a game, Dennis lost 50 points in the first round and then lost 75 more points in the second round.
Let x be the change in the points:
The points are 50 and 65
The expression can be written as:
= (-50) + (-75)
= -125
The negative sign needs to write before the numbers because Dennis lost 50 points and 75 points in the game.
Thus, the additional expression for the change in Dennis's score after two rounds is (-50) + (-75) and the value of change is -125.
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What is the answer to 4(7.2 - x) x = 4
Answer:12.8
Step-by-step explanation:
4(7.2-4)
4(3.2)
12.8
Answer: If you evaluate i guess 12.8
Step-by-step explanation:
In basketball, each shot made is worth 1, 2, or 3 points. Miles scored a total of 27 points in his most recent game. He made three 1-point shots
and four 3-point shots.
How many 2-point shots did he make?
Answer:6
Step-by-step explanation:
Subtract the three 1 point shots
Subtract the four 3 point shots
You are left with 12, and you split that in 2 because they're 2 point shots.
Help me please?!?!??!?!!
Answer:
It's D.
Step-by-step explanation:
Because, it equals to the equation written.
What the heck does this mean? -(-) =
Answer:
+
Step-by-step explanation:
++ = +
+- = -
-+ = -
-- = +
Example:
-1 x -1 = 1
1 x -1 = -1