Answer:
$5
Step-by-step explanation:
which expression is equivalent to -2(5x - 0.75)
Answer:
5(5x - 0.34
Step-by-step explanation:
Answer:
The correct answer is −10x+1.5
Step-by-step explanation:
−2(5x−0.75)
=(−2)(5x+−0.75)
=(−2)(5x)+(−2)(−0.75)
=−10x+1.5
The speed limit on a highway is 80 miles per hour. How many miles per minute is this?
Answer:
0.75
Step-by-step explanation:
Americans who are 65 years of age or older make up 13.1% of the total population. If there are 32.6 million Americans in this age group, find the total U.S. population.
Solve x2 – 12x + 26 = 0 by completing the square.
Answer:
6±√10
Step-by-step explanation:
x^2-12x+26=0
x= ± √10 +6
6±√10
The solutions of the given quadratic equation [tex]x^2 - 12x + 26 = 0[/tex] are;
x = 6 + √10 and x = 6 - √10.
To solve the quadratic equation [tex]x^2 - 12x + 26 = 0[/tex]
using completing the square method, follow the steps below.
Move the constant term to the right side of the equation
[tex]x^2 - 12x = -26[/tex]
To find the value that completes the square, divide the coefficient of x by 2 and square it.
[tex](-12/2)^2 = 36[/tex]
Add and subtract the value obtained in step 2 to the left side of the equation
[tex]x^2 - 12x + 36 - 36 = -26[/tex]
Simplify the left side of the equation by factoring the perfect square trinomial
[tex](x - 6)^2 - 36 = -26[/tex]
Add 36 to both sides of the equation to isolate the perfect square trinomial
[tex](x - 6)^2 = 10[/tex]
To Take the square root of both sides of the equation
x - 6 = ±√10
Solve for x
x = 6 ± √10
So, the solutions of the given quadratic equation [tex]x^2 - 12x + 26 = 0[/tex] are x = 6 + √10 and x = 6 - √10.
Learn more about equations here;
https://brainly.com/question/25180086
#SPJ2
Please help! I mark brainlist.
Answer: A. -3/4x - 3
BRAINLIEST
Estadio Azteca, a stadium in Mexico City, has a capacity of 1.04 × 105 people. One day,
spectators filled Estadio Azteca in 25 minutes.
1. What division expression represents the average number of people per minute?
The average number of people who entered the stadium per minute was 4,160
we know that
To find out the average number of people who entered the stadium per minute, divide the total number of people by the time required to fill the stadium
Let
x ----> the total number of people
y ----> the time required to fill the stadium
we have
1.04*10 5/25 = 4,160 people/mintute
so
therefore
The average number of people who entered the stadium per minute was 4,160
I hope this helped! Plz, comment in the paragraphs soon!
Together, teammates Pedro and Ricky got 2687 base hits last season. Pedro had 281 more hits than Ricky. How many hits did each player have? help quick
Answer:
Let x be the number of hits Ricky has. Then x+277 is the number of hits Pedro has. Adding Ricky's and Pedro's hits give you 2685 hits. Therefore, x+(x+227)=2685 2x+227=2685 2x=2408 x=1204 x+277 1481 Therefore, Ricky has 1204 hits and Pedro has 1481 hits.
Step-by-step explanation:
10 BRAINLY POINTS EASY MATH Simplify fraction numerator 8 over denominator negative 4 end fraction divided by fraction numerator negative 3 over denominator 9 end fraction
A.
6
B.
-6
C.
12
D.
-12
Answer:
A. 6
[tex] \frac{8}{ - 4} \div \frac{ - 3}{9} = 6[/tex]
Explanation:
[tex] = \frac{8}{ - 4} \div \frac{ - 3}{9} [/tex]
[tex] = \frac{2}{ - 1} \div \frac{ - 1}{3} [/tex]
[tex] = \frac{2}{ - 1} \times \frac{3}{ - 1} [/tex]
[tex] = \frac{2 \times 3}{ - 1 \times - 1} [/tex]
[tex] = \frac{6}{1} [/tex]
[tex] = 6[/tex]
how do we find the place value of 3a + b given that a=4, b=3, and c=-2
Answer:
3a+b
3(4)+3
12+3
15
Step-by-step explanation:
You substitute the variables with the given numbers. I think this is correct.
PLSSS HELPPP WITH THIS QUESTION I WILL GIVE 12 POINTS AND THE BRAINLIEST
Answer:
22%
Step-by-step explanation:
theres 2 green marbles and 9 marbles in total
2/9=0.2222222
Find the equation of the line that is perpendicular to the given line and passes through the given point. Enter your answer in slope-intercept form (y = mx + b) with the values of m and b given as decimals, rounded to the nearest hundredth if necessary.
y = 2x ; (5, −5)
The equation is y = .
Hope this works, let me know if you didn't understand it
Answer:
the y is y=mx+b
Step-by-step explanation:
if this helps say also have a brillint day
IF YOU ACTUALLY HELP ILL GIE BRAINLIEST!!
Answer:
im pretty sure its b
Step-by-step explanation:
Answer:
it is c
Step-by-step explanation:
because it has +4 with f(x)
Use the substitution method to solve the system of equations.
3x + 4y = 10
y = x-1
A. (2,3)
B. (2,1)
C. (3,2)
D. (1,2)
Answer:
B
Step-by-step explanation:
3x + 4(x-1) = 10
3x+4x-4=10
7x-4=10
+4 +4
7x=14
/7 /7
x=2
y=(2)-1
y=1
iris has 120 songs on her playlist each week she downloads 4 new songs. write an expression to show the total number of songs on iris's playlist after W weeks.
Answer:
S(w)=120+4w
Step-by-step explanation:
The function has a base constant of 120 songs. Then for each week, 4 songs are added. On week 1, w=1, and thus it is 120+1(4). On week 2, w=2, and thus it is 120+2(4).
A car travels 180 miles in 3 hours and 45 minutes. How many miles does it travel per hour?
Answer:
48 miles per hour
Step-by-step explanation:
first I would convert everything to hours It makes it easier. That means that 3 hours and 45 mins becomes 3 3/4 hours So now you have 180/3.75 = the rate. To find the answer, simply divide that, and you get 48. 48 miles per hour
Answer:
ASK
DISTANCE DISTANCE FORMULA DISTANCE WORD PROBLEMS DISTANCE, RATE, TIME SPEED DISTANCE TIME DISTANCE WORD PROBLEM
Michaela B. asked • 09/02/15
A car travels 180 miles in t hours at a speed of r mph. If the car travels half as fast but three times as long, how far does it travel?
Use the fact that distance equals speed times time.
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2 Answers By Expert Tutors
By:
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Michael J. answered • 09/02/15
TUTOR 5 (5)
Effective High School STEM Tutor & CUNY Math Peer Leader
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d = vt
where:
v = speed
d = distance
t = time
Based on the formula, each quantity is directionally proportional to each other. Since we don't have enough numbers to work with, we will utilize our concept skills.
If the car travels half the speed, then the car is slowing down and covers a short distance in a certain amount of time than it did originally. So we divide the default distance by 2.
180 / 2 = 90
The new distance so far is 90 miles.
But now it takes the car 3 times as long to get to its destination. The longer it takes, the more distance you will cover. Multiply the current distance by 3.
90 * 3 = 270
The car travels 270 miles.
Which of the following does NOT satisfy the commutative property?
Multiplication with 3x3 matrices
O Multiplication with integers
O Multiplication with complex numbers of the form a + bi
O Multiplication with real numbers
9514 1404 393
Answer:
A. Multiplication with 3×3 matrices
Step-by-step explanation:
Multiplication with real or complex numbers is commutative. Matrix multiplication is not commutative, in general.
Help 9th grade math please please please
Answer:
A.) This system has no solutions.
Step-by-step explanation:
y = 1/2x + 4
-1/2x + y = -5
-1/2x + (1/2x + 4) = -5
4 = -5
The system has no solutions, if we graph it, we get that it has the same slope with two different y-intercepts, these two are parallel. These two points will never meet at a point.
Answer:
use the relationship between coefficients of a pair of linear equations for no solutions i.e. a1/a2 equal to b1/b2 not equal to c1/c2 .
Here, a is coefficient of x and b is coefficient of y and c is constant term in both equation but make sure that you put the values of a1,a2,b1,b2,c1 and c2 after converting both equation in the form ax+by+c=0 with proper sign and here y=1/2(x) +4 is equation 1 and other is equation 2
The volume of one of the Great Lakes is 3.5 × 103 cubic kilometers. If there are 6.3 × 107 fish in the lake, what is the average number of fish per cubic kilometer?
A.
2.205 × 1011
B.
1.8 × 104
C.
1.8 × 1010
D.
2.205 × 104
Answer:
b
Step-by-step explanation:
Your cell phone provider charges a monthly fee of $30. You are also charged $0.07 per minute
for each minute. Last month, Mr. Gonzales' bill was $59.40. Let m represent the total number
of minutes Mr. Gonzales used last month. Use the verbal model below to write an equation.
Answer:
0.07m + 30 = 59.40
Mr Gonzalez used 420 minutes last month
Step-by-step explanation:
To represent how much money Mr. Gonzales was charged for using minutes, use the term 0.07m.
Then, add 30 to this to represent the monthly fee:
0.07m + 30
Lastly, set this equal to 59.40 because that was his total bill for the month:
0.07m + 30 = 59.40
So, the equation for the situation is 0.07m + 30 = 59.40
Solve for m in the equation:
0.07m + 30 = 59.40
0.07m = 29.40
m = 420
So, Mr Gonzalez used 420 minutes last month.
Answer:59.40
Step-by-step explanation:
Solve the absolute value equation.
4 − |x| = 1 25 POINTS
What is the slope of the line?
Answer:
In technical terms, the slope of the line is the change in y over the change in x. But I just like to think of it as rise over run. To find the slope of the line, pick two points on the line.
Jamel wants to buy a PS 5. He found it for $500
with a 30% discount on Black Friday. How much
would he pay before taxes ?..
Answer:
150
Step-by-step explanation:
its 150 without taxes
Answer:
350
Step-by-step explanation:
Assumung that the $500 is before taxes, Jamel would have to pay $350.
$500 = price before discount
30% = discount
This means that Jamel would be paying 70% of the orginal price, because 30% of it is already taken off.
0.7*500=350
Answer: $350
All employees of the Crafton Company are paid $0.375 for each wrench set they pack. How much would Kenny Pace earn if he packed 1,740 wrench sets in one week of work
Answer:
$652.50
Step-by-step explanation:
1740*0.375=652.5
Using PT in the Coordinate System
llus
Find the distance between the two points.
(-1,3)
(4,2)
✓ [?]
Enter the number that
goes beneath the
radical symbol.
Answer:
The distance between the two points is [tex]\sqrt{26}[/tex]
Step-by-step explanation:
The formula of the distance between two points (x1, y1) and (x2, y2) is
d = [tex]\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}[/tex]
∵ The points are (-1, 3) and (4, 2)
∴ x1 = -1 and x2 = 4
∴ y1 = 3 and y2 = 2
→ Substitute them in the formula of the distance above
∵ d = [tex]\sqrt{(4--1)^{2}+(2-3)^{2}}[/tex]
∴ d = [tex]\sqrt{(4+1)^{2}+(-1)^{2}}[/tex]
∴ d = [tex]\sqrt{(5)^{2}+1}[/tex]
∴ d = [tex]\sqrt{25+1}[/tex]
∴ d = [tex]\sqrt{26}[/tex]
∴ The distance between the two points is [tex]\sqrt{26}[/tex]
using the graph below find f(2)
Answer:
f(2)=1
f(2) means that 2 is being plugged in for x so look for the y value when x is 2
in this case y is 1 when x is 2
Step-by-step explanation:
A shoe store uses a 50% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $59?
Answer:
ummm
Step-by-step explanation:
Answer:
29.50
Step-by-step explanation:
Which of the table in the image below represents a function?
Table 1
Input: 4, 3, 2
Output: 3, 2, 1
Table 2
Input: 1, 2, 3
Output: 3, 5, 7
Table 3
Input: 0, 1, 1
Output: 0, 4, 5
Table 4
Input: 4, 4, 4
Output: 1, 2, 3
Answer:
A
Step-by-step explanation:
Joseph buys carrots for his horse every weekend. He paid $4.69 for 7 carrots at a farm stand last weekend. This weekend, Joseph paid $5.76 for 12 carrots at the supermarket. Which location offers the better deal?
Answer:
The super market offers the best deal
Step-by-step explanation:
Answer:
Its the super market ~your friendy neighborhood austrailain~
Step-by-step explanation:
Skittles come in many different colors in my bag of 40 Skittles I had 12 green ones what percent of the bag was Green?
Answer:
4.8
Step-by-step explanation:
The distance between two towns on a map is 6cm. The actual distance between two towns is 48 km. What is the scale on the map?
A) 1 cm : 6 km
B) 1 cm : 7 km
C) 1 cm : 8 km
D) 1 cm : 9 km
Step-by-step explanation:
6cm : 48km
=> 1cm : 48km * (1/6) = 1cm : 8km. (C)
Answer:
8 km
Step-by-step explanation: