Answer:
48+x=75
Step-by-step explanation:
Subtract 48 from both sides. 75-48 is equal to 27. x=27
Answer:
x [tex]\geq[/tex] 27
Sally has to complete at least 27 more hours
Step-by-step explanation:
Let x represent the number of hours she will complete next
Since students need at least 75 hours, use a greater than or equal to sign.
The total number of hours that Sally will complete can be represented by
x + 48, since she has already done 48 hours.
Use the greater than or equal to sign, and put 75 on the other side:
x + 48 [tex]\geq[/tex] 75
Next, solve the inequality:
x + 48 [tex]\geq[/tex] 75
x [tex]\geq[/tex] 27
So, Sally has to complete at least 27 more hours.
Evaluate the expression -8x + 5 - 2x - 4 + 5x when x = 2 before and after simplifying.
Answer:
Step-by-step explanation:
all we have to do is plug in 2 for x into the equation:
-8(2) + 5 -2(2) -4 + 5(2)
-16 + 5 -4 -4 + 10
-11 -8 + 10
-19 + 10
the answer is
-9
to simplify the equation we’ll combine like terms
-8x + 5 -2x -4 + 5x
-10x + 1 + 5x
-5x + 1
now we’ll plug in 2 for x
-5(2) + 1
-10 + 1
the answer is still
-9
Answer:
-9
Step-by-step explanation:
number of integers between -2 and 2
Answer:
3 integers
Step-by-step explanation:
-1, 0, 1 lie between the integers - 2 and 2
The diagram shows a sector of a circle radius 11 cm.
Show that the perimeter of the sector
is greater than 47.5 cm.
135°
11 cm
Answer:
Perimeter of sector is 47.93 cm which is greater than 47.5 cm
Step-by-step explanation:
Mathematically, the perimeter of a sector is length of the arc plus 2 radii
The length of the arc is;
theta/360 * 2 * pi * r
where theta is the angle subtended by the arc at the center of the circle
Thus, we have
135/360 * 2 * 22/7 * 11 = 25.93
Add 2 radii = 25.93 + 2(11) = 47.93 cm
This is greater than what we are asked to calculate and thus we have shown what we are asked to show
Answer:
47.9cm>47.5cm
Step-by-step explanation:
135(angle) /360 x 2 pi r (to give arc of the sector)
135/360 x 2 x 3.142 x 11 = 25.92cm
add 11 + 11 (radius)
25.92 + 22= 47.9cm
How many turning points are in the graph of the polynomial function?
Answer:
there are uncountable turning points in polynomial funcatiin
1. What is the measure of angle 4?
2. What is the measure of angle 1?
3. What is the measure of angles 3?
4. What is measure of angle 6?
5. What is the relationship between angles 4 and 5?
Answer:
bla bla bal bala bla bla bla bla hahahahhahahahhhehehhehehehheheh joke png
Larry invests $7,000 in an account that earns 6% interest compounded continuously. How much will Larry
have in 7 years?
Answer:
9940
Step-by-step explanation:
its easy please give brainlist
Answer:
~10525.41 after 7 years
Step-by-step explanation:
y=a(1+r)^x
That's the equation for exponential growth
a= the starting amount
r= the rate at which it is growing
x=years
with that information
a=7000
r=6% or 0.06
so y=7000(1+0.06)^x -> y=7000(1.06)^x
x=7
y=7000(1.06)^7
y~10525.41
i suck at math. help me. i would app it.
Answer:
x= 2
Step-by-step explanation:
y = 7 means it is parallel to the x axis . so the perpendicular line is to be parallel yo the y axis. .
so the equation is to be like x = c
but it is passing (2,13)
so the equation is
x= 2
Complete the real-world situation that could be modeled by the equation 150 − 8x = 170 − 12x. Xavier has $150 in his lunch account. He spends $ for lunch each day. Zack has $ in his lunch account. He spends $ each day. After how many days will the boys have the same amount of money in their accounts?
Answer:
5 days
Step-by-step explanation:
The question above is modeled by the equation :
150 − 8x = 170 − 12x.
After how many days will both have ye same amount :
Number of days = x
Collect like terms
-8x + 12x = 170 - 150
4x = 20
x = 20/4
x = 5 days
The boys will have the same amount in their account after 5 days.
Help rn please!!! Urgent
Answer:
try 3 i need 20 more letters
Answer:
f(x) = 2x^2 + 12x +10
Step by step solution:
x = 1 x = 5 y = 10
f(x) = a(x+1)(x+5)
f(0) = a(1)(5) = 10
5a = 10
Divide by 5
a = 2
f(x)= 2(x+1)(x+5)
f(x) = 2(x^2 +6x +5)
f(x) = 2x^2 + 12x +10
brainliest much appreciated!
john set a record when he caught a salmon that weighed 97 1/2pounds. james caught a salmon that weighed 74 7/16pounds. How much less than the record was this?
Answer:
23.0625 or 23 13/200
Step-by-step explanation:
97 1/2 - 74 7/16 = 23.065 or 23 13/200
Fun fact: The heaviest salmon caught is actually 97 pounds!
If you found this helpful, please give me brainliest. Thanks!
Find the mean absolute deviation of the set: 10,5,7,14,19,32,25
Answer: I believe it would be 8.
Step-by-step explanation:
Imani and Todd were trying to solve the equation: x^2+6x+5=8x 2 +6x+5=8x, squared, plus, 6, x, plus, 5, equals, 8 Imani said, "I can factor the left-hand side into (x+1)(x+5)(x+1)(x+5)left parenthesis, x, plus, 1, right parenthesis, left parenthesis, x, plus, 5, right parenthesis, so I'll solve using the zero product property." Todd said, "I can solve by completing the square. If I add 444 to each side, I can rewrite the equation as (x+3)^2=12(x+3) 2 =12left parenthesis, x, plus, 3, right parenthesis, squared, equals, 12." Whose solution strategy would work? Choose 1 answer: Choose 1 answer:
Answer:
Todd's
Step-by-step explanation:
Given the expression x^2+6x+5=8, we are to determine which whether Imani or Todd method will work
Imani method might not work because he hasn't written the equation in standard form before factorizing. He should have equated the expression to zero first before factorizing and finding the zeros of the expression. The equation should have been written in the form ax²+bx+c = 0 first.
For Todd, his method will work because he used the completing the square method. The value at the right hand may not necessarily be zero before applying the rule. The idea is to make the quadratic equation complete and a perfect square.
This is achieved by adding the half of coefficient of x to both sides of the expression before simplifying.
From the expression x²+6x+5 = 8 we can see that adding 4 to both sides will make the quadratic equation on the left a perfect square.
x²+6x+5= 8
x²+6x+5+4= 8 +4
x²+6x+9 = 12
x²+3x+3x+9 = 12
x(x+3)+3(x+3) = 12
(x+3)(x+3) = 12
(x+3)² = 12
We can see that the expression at the left hand is now a perfect square. Hence Todd solution strategy will work
Answer:
only todd i got it from khan
Step-by-step explanation:
Y>x-3, y<-x+3? I need a graph:(
Answer:
Then make one
Step-by-step explanation:
Can somebody explain how to do this
Answer:
The answer is 46.
Step-by-step explanation:
First, you will have to add up both functions in order to find the new expression for (g + f)(a) :
g(a) + f(a) = (g + f)(a)
(g + f)(a) = 3a + 3 + 2a - 2
(g + f)(a) = 5a + 1
Next, you have to substitute a = 9 into the function :
(g + f)(9) = 5(9) + 1
(g + f)(9) = 46
Find the value of x in the triangle below.
x = ?
Answer:
x=8
Step-by-step explanation:
hope i helped!!!
Answer:
61°
Step-by-step explanation:
180-58=122
122÷2=61
O A. y = {x+1
O B. y=-2x-1
O C. y=-2x+ 1
O D. y = 2x-1
solve the following equation
3x + 5 / 2 X + 7 = 5
pls pls pls need ans. for this question
Answer:
-30/7 = x
Step-by-step explanation:
im guessing u mean (3x+5)/(2x+7) = 5
3x+5 = 5(2x+7)
3x+5=10x+35
-7x=30
x= -30/7
The floor of a room is 12m long and 7.5m broad i) Find the area of the floor ii) Find the cost of carpeting the floor at rs 80 per sq.m
(Unitary method)
A=90m^2
Cost=RS.7200
I hope that helps
Answer:
this is the formula that you want
HELP ME PLS!!!!!!!!!!!!!!!!!!!!
Answer:
1) Yes because the slope, 10x, is constant
2) Yes for every 1 hour of baby sitting $10 dollars is earned.
Consider Brainliest!
a) x ^ 2 + 2x???????????
Step-by-step explanation:
x² + 2x
x(x + 2)
OR
x² + 2x = 0
x(x + 2) = 0
x = 0 or x + 2 = 0
x = 0 or x = - 2
HELP ME PLZZ I NEED HELP WITH THIS!!
Step-by-step explanation:
7/5(1/7)(-10)
=(1/5)(-10)
=-2
Can someone help me?
Answer:
B. Yes, 3.5
Step-by-step explanation:
Proportional Variables
Two variables x,y are proportional if one of them can be calculated as the other variable time a fixed constant:
y = k.x
Or, equivalently:
k = y/x
k is called the constant of proportionality.
The table gives three points: (13,45.5) (14,49) (15,52.5)
To find out if the values correspond to a proportional relationship, we find the value of k for each pair:
k = 45.5 / 13 = 3.5
k = 49 / 14 = 3.5
k = 52.5 / 15 = 3.5
Since the value of k is the same for all the points, we conclude the table shows a direct proportional relationship and the constant of proportionality is 3.5
Please help me I need help
Answer:
Option c) [tex]0.25[/tex]
Step-by-step explanation:
[tex]p(red \cap truck) = p(red) \times p(truck)[/tex] ([tex]truck[/tex] is referring to pickup truck)
[tex]0.06=p(red) \times 0.24[/tex] (given that the probability of a red pickup truck is 0.06 and the probability of a pickup truck is 0.24)
[tex]p(red)=0.06\div0.24[/tex]
[tex]p(red)=0.25[/tex]
∴ The probability that a vehicle is red is [tex]0.25[/tex].
Hope this helps :)
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
Answer:
4 btw lovinggg the M !!!!!
Step-by-step explanation:
Answer:
Undefined
Step-by-step explanation:
To find slope, you need the difference of y over the difference of x.
For example, let's use (-8,8) and (-8,3).
Difference of y: 8-3
Difference of x: -8-(-8) (Note that the order of the x values must be the same as the order of the corresponding y values of the coordinate)
(8-3)/(-8+8)
= 5/0
Now, we see that we have to divide by 0, except it's impossible to divide by 0, so the slope is left as undefined.
A school keeps track of the percentage of scholars who pack lunch versus buy lunch. On Monday, 80% of scholars packed lunch. On Tuesday, 70% of the scholars who packed lunch do so again, and 50% of those who bought lunch on Monday pack lunch on Tuesday. Assume all scholars either pack lunch or buy lunch. Find the percent change in the number of scholars who bought lunch from Monday to Tuesday, and indicate whether this was an increase or decrease.
Answer:
you can also get the most of the best Friend in suluiman .70.
This is a math question I’m not really familiar with. Harry receives 30% commission on the appliances he sells. If he sells a TV for $350, a refrigerator for $400 and a heater for $440, how much does Harry make in commission?
Answer:
the answer is 357
Step-by-step explanation:
350 + 440 + 400 = 1190
30% of 1190 = 357
May I have brainliest please? :)
)A class has 9 boys and 15 girls. What is the ratio in simplest form that compares number of boys to total number of students?
3:5
3:8
9:15
9:24
Answer:
3:5
Step-by-step explanation:
3, 6, 9.
5, 10, 15.
always see which numbers fit and which numbers dont
Answer:
9:24 is the ratio.
Step-by-step explanation:
the product of two rational numbers is -14/45. If one of the no. is -7/9 find the other no.
pls pls i want this ans. fast
Answer:
its 2/5
Step-by-step explanation:
-7/9 x 2/5 = -14/45
Answer:
14.45/7.9=1.82...this is your answer
"I am 3 times as old as Sue is," Frank said to Ann. "On the other hand, I am 15 years older than John while Sue is 1 year younger than John. How old am I?"
If J represents John's age, then which of the following equations could be used to solve the problem?
J + 15 = 3J - 1
J + 15 = 3(J - 1)
Answer:
J + 15 = 3(J - 1)
Step-by-step explanation:
I am 99% sure this is the right answer.
PLZ HELP I DONT KNOW THE ANSWER
Answer:
15 feet off the ground
Step-by-step explanation:
Hope this helps!
Answer:18
Step-by-step explanation:
1.5 times 12 =18