Prove that if 5(m - 1) = -25, then m = -4.
Answer:
The equation is true
Step-by-step explanation:
First, input -4 instead of m in the equation:
5(-4 - 1) = -25
Then, distribute:
-20 - 5 = -25
Finally, simplify:
-25 = -25
This equation is true, and that's how you prove it.
Hope this helps!
Answer:
M= -4
Step-by-step explanation:
1. Distribute the 5 into the parentheses
5m-5=-25
2. Now add 5 on both sides
5m=-20
3. Now divide 5 by -20
m=-4
Find the value of x for the following situation: the line containing (8,7) and (7,-6) is perpendicular to the line containing (2,4) and (x,3)
Answer:
x=14
Step-by-step explanation:
Answer: x=14
Step-by-step explanation:
Residents who live in the city receive power from the city’s power plant. If the city is a square, approximately how wide is the city if the area is 200 square miles?
Lowest common multiple of 6 , 7 and 8
Answer:
The LCM is 168
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
Answer:
Lowest common multiple is 168
Which of these sums is greater than 1? please help 20 pts if u get it A. 12+23 B. 13+18 C. 14+25 D. 15+110
Answer:
They are all greater than 1.
Step-by-step explanation:
12+23=35
13+18=31
14+25=39
15+110=125
The sum of Option D is greater than 100 .
What is the meaning of Sum ?Sum is the output of the mathematical operation , "Addition" .
It is given to find the sum of which numbers exceed 100
A. 12 + 23 = 35
B. 13+18 = 31
C. 14+25 = 39
D. 15+110 = 125
The sum of Option D is greater than 100 .
Therefore , Option D is the answer.
The correct question is
Which of these sums is greater than 100?
please help 20 pts if u get it A. 12+23 B. 13+18 C. 14+25 D. 15+110
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5
The actual distance between the library and train station is 500 ft. Explain how you
could find the distance between them in centimeters on the map.
Answer:
15,420 cm
Step-by-step explanation:
Given the actual distance between the library and train station to be 500 ft, to find the distance between them in centimeters, we ill convert 500 ft to cm as shown;
Given the conversion:
1 ft = 30.48cm
500ft = x cm
Cross multiply
x cm * 1ft= 30.48 cm * 500ft
x cm = 30.48 cm * 500ft/1ft
x cm = 15,240 cm
Hence the distance between them in centimeters on the map is 15,420 cm
X+y=__ when x=2 and y=3 (substitute and give the answer)
Answer:
5
Step-by-step explanation:
plug in the numbers
2 + 3 = 5
Solve the equation
-2(2x - 4) = 4x
Write it step by step. I really need help
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−2(2x−4)=4x
(−2)(2x)+(−2)(−4)=4x(Distribute)
−4x+8=4x
Step 2: Subtract 4x from both sides.
−4x+8−4x=4x−4x
−8x+8=0
Step 3: Subtract 8 from both sides.
−8x+8−8=0−8
−8x=−8
Step 4: Divide both sides by -8.
find the zero of the function h(x) = 4x+2
Answer:
[tex]x=-1/2=-0.5[/tex]
Step-by-step explanation:
So we have the function:
[tex]h(x)=4x+2[/tex]
To find the zero(s) of a function, set the function equal to 0 and solve for x. So:
[tex]0=4x+2[/tex]
Subtract 2 from both sides:
[tex]-2=4x[/tex]
Divide both sides by 4:
[tex]x=-1/2=-0.5[/tex]
So, the zero of the function is -0.5.
This means that the graph (a line) crosses the x-axis at (-0.5, 0).
Three is less than the sum of a number 8 and 4
Answer:
3<x+12
Step-by-step explanation:
Which number has 7 in the tens place a 7 in the tenths place and a 1 in the thousands place
is the product of a positive number and a negative number a positive
Answer:
Hey there!
False. The product of a positive number and a negative number is always NEGATIVE.
Let me know if this helps :)
Answer:
FALSE
Step-by-step explanation:
When you multiply a negative number by a positive number then the product is always negative. When you multiply two negative numbers or two positive numbers then the product is always positive.
what are the steps to simplifying radical expressions?
Answer:
Step 1: Find the prime factorization of the number inside the radical.
Step 2: Determine the index of the radical. In this case, the index is two because it is a square root, which means we need two of a kind.
Step 3: Move each group of numbers or variables from inside the radical to outside the radical. In this case, the pair of 2’s and 3’s moved outside the radical.
Step 4: Simplify the expressions both inside and outside the radical by multiplying.
Step-by-step explanation:
Fredrick threw a ball from the top of a building. The height of the ball, in feet, after it is thrown is modeled by the function
h() = -1612 + 641 + 100, where i represents time, in seconds.
Answer:
5.2 secondsStep-by-step explanation:
GivenThe function h(t) = -16t^2 +64t + 100To find: Time the ball to reach the ground (h = 0)? Solutionh(t) = -16t^2 +64t + 100Need to find the value of t, when h(t) = 0
-16t^2 +64t + 100 = 04t^2 - 16t - 25 = 04t^2 - 2*2t*4 + 16 = 41(2t - 4)^2 = 412t - 4 = √412t - 4 = 6.42t = 10.4t = 5.2Answer is 5.2 seconds
Answer:
5.2
Step-by-step explanation:
Please help me!!!!!!!!
A driver needs to make a delivery to an office that is 30 km away. The driver has traveled for 45 minutes west down a straight road at 50 km/h.
Has the driver traveled far enough to reach the office? Support your response.
Answer:
The driver has made it far enough to reach the office
Step-by-step explanation:
1,1
9 t-shirts cost £49.05. How much do 13 t-shirts cost
A metal bar ten feet long weighs 128 pounds. What is the weight of a similar bar that is two feet four inches long?
Round to the nearest whole pound. (Use cross multiplication to solve the ratio).
Answer:
Seems like 29 pounds (29.44 not rounded)
Step-by-step explanation:
9x + 5 - 3x = 5x - 14
Answer: The answer is x = -19
Answer:
-19
Step-by-step explanation:
9x - 5x -3x = -14 -5
1x = -19
Can someone answer fast?
Which of the following rules describes the function graphed below?
I have no idea how to do this
Answer:
I would say c im not 100% sure sorry if i got it wrong
Step-by-step explanation:
Order the numbers below from least to greatest √5,3.7,1/2,-4,-9/4
Answer:
-4 , -9/4 , .5 , √5 , 3.7
Step-by-step explanation:
-9/4= -2.25
sqr 5= 2.23
1/2= .5
What is this 8=a+3+4
[tex]\bf Step-by-step~explanation:[/tex]
If we were to solve for a, we will need to isolate the variable.
[tex]\bf Step~1:[/tex]
Add the like terms on the right side of the equation together.
[tex]\bf 8=a+3+4\\8=a+7[/tex]
[tex]\bf Step~2:[/tex]
Subtract 7 from both sides to move 7 to the other side.
[tex]\bf 8(-7)=a+7(-7)\\1=a[/tex]
[tex]\bf Step~3:[/tex]
Rewrite the equation so that the variable is at the beginning. This is the format most teachers prefer.
[tex]\bf 1=a\\a=1[/tex]
[tex]\large\boxed{\bf Our~final~answer:~a=1}[/tex]
plzzzzzxz help mee!!!!!!?????
Answer:
175
Step-by-step explanation:
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Number of classes: 8 Data set: Finishing times (in seconds) of 20 male participants in a 5K race
Answer and Explanation:
Number of classes = 8
Highest value =2300
Lowest value = 1250
Class width= highest value – lowest value / number of classes
= 2300 – 1250/8
= 131.25 = 132
So, we can write class as 1250+132=1382
Class frequency
1250-1382 2
1382-1514 3
1514-1646 6
1646-1778 2
1778-1910 3
1910-2042 2
2042-2174 1
2174-2306 1
. A dog runs from one side of a park to the other 80.0 meters across and takes 16.0 seconds to cross the park. What is the speed of the dog?
Answer:5
Step-by-step explanation:I divided 80.0 by 16.0
The students at Woodward Elementary voted for a school mascot. The falcon won with 5/8 of the votes and the eagle came second with 1/3 of the remaining votes. If 536 students voted for a mascot, how many students voted for the eagle?
Answer:
178.67
Step-by-step explanation:
One third written as a fraction is 1/3. You can also write it as a decimal by simply dividing 1 by 3 which is 0.33.
If you multiply 0.33 with 536 you will see that you will end up with the same answer as above.
You may also find it useful to know that if you multiply 0.33 with 100 you get 33.33. Which means that our answer of 178.67 is 33.33 percent of 536.
What is 115.376 rounded to the nearest hundredths
Answer:115.38
Step-by-step explanation:
115.378
=115.38
The hundredth digit is seven
Point Q is on line segment PR.Given
PQ = 5 and QR = 8, determine the
length PR.
PR
Take a look below.
Answer is attached.
Answer:
13
Step-by-step explanation:
Step 1:
PQ + QR = PR
Step 2:
5 + 8 = PR
Answer:
PR = 13
Hope This Helps :)
a. About how far is it from Amarillo to Oklahoma City? Explain your reasoning. b. Driving at a constant speed of 70 miles per hour, will it be possible to make this trip in 3 hours? Explain how you know.
Answer:
They are 260 miles apart. No it would not be possible.
Step-by-step explanation:
If they are 260 miles apart and you drive at a constant speed on 70mph. You will have to 260/70 which = 3.7 or 4 so it would not be possible.
Amarillo and Oklahoma City are [tex]260[/tex] miles apart.
It is not possible to make this trip in [tex]3[/tex] hours.
By using any geographical tool, such as the local map or you can use internet too to find the distance between Amarillo and Oklahoma City.
Amarillo and Oklahoma City are [tex]260[/tex] miles apart.
[tex]Speed = \frac{Distance}{Time}[/tex]
[tex]Time = \frac{Distance}{Speed}[/tex]
[tex]Time = \frac{260}{70}[/tex]
Time [tex]= 3.714[/tex] hours
So, it is not possible to make this trip in [tex]3[/tex] hours.
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In a florist shop, the ratio of roses to tulips is 5 : 3. The shop has 72 tulips on Friday morning. If the florist uses up half of each type of flower to fill an order, will the ratio of roses to tulips in the shop change?
Answer: it’s 60 and 36
Step-by-step explanation:
The verticies of triangle XYZare X(-3, -6), Y(21,-6) and Z(21, 4). What is the perimeter of the triangle?
Answer:
-3,-6
Step-by-step explanation: