Answer:
70 mins
Step-by-step explanation:
Lets first convert the 4.5 hours to minutes. We know that there's 60 mins in an hour, so we can just multiply 4.5 by 60 to get 270 minutes. Now we know the total time spent at the mall.
Then, we can add the times given in the question.
130 mins + 70 mins + walking mins = 270 mins
To solve, simply collect like terms:
200 mins + walking mins = 270 mins
walking mins = 270 mins - 200 mins
walking mins = 70 mins
Write the linear equation in slope-intercept form and simplify.
-10x – 17y = 14
Answer:
y=1.7x-1.2
Step-by-step explanation:
-10x-17y=14
Subtract 10x to both sides
-17y=-10x+14
Divide by -17 on both sides
y=1.7x-1.2
Solve to find X. 3 ≥ -3x
Answer:
-1 ≤ x
Step-by-step explanation:
You just need to divide -3 on both sides.
-1 ≤ x
Note that since you are dividing by a negative number, the sign flips.
-1 ≤ x
Step-by-step explanation:
First start with the equation:
3 ≥ -3x
divide by -3 to get x positive and singular:
-1 ≥ x
and since we divided by a negative we need to flip the sign:
-1 ≤ x would be your answer
hope this helped :)
Kerry knit 16 winter hats to give as presents to her family. She wants to package the hats in gift boxes. She wants to put 5 hats in each box. How many gift boxes does Kerry need to buy? How many total boxes will Kerry fill? Explain how you know.
Answer:
she needs to buy 4 boxes since she can't buy a part of a box. assuming total boxes means completely filled boxes, then she fills 3
Step-by-step explanation:
Three randomly chosen California students were asked how many times they drove to Mexico last year. Their replies were 4, 5, 6. The geometric mean is:
Answer:
4.93
Step-by-step explanation:
Given 3 numbers a, b and c, the formula for calculating their geometric mean is expressed as:
GM = ∛a*b*c
Given the numbers 4, 5 and 6
geometric mean = ∛4 * 5 * 6
geometric mean = ∛20*6
geometric mean = ∛120
geometric mean = 4.93
Hence the geometric mean is 4.93
Help pls I have no idea lol
Answer:
a=7b=9c=4
Step-by-step explanation:
The intensity of the sound, I watts/m², received from a loudspeaker is
inversely proportional to the square of the distance, d metres, from the
loudspeaker.
When d = 2,1 = 30
Work out the value of I when d = 10
PLEASE HELP
Answer:
The value of I for d = 10 will be 1.2 watts/m^3
Step-by-step explanation:
Let I be the intensity of sound and d be the distance
According to given statement, "The intensity of the sound, I watts/m², received from a loudspeaker is inversely proportional to the square of the distance, d meters, from the loudspeaker. "
[tex]I \propto \frac{1}{d^2}[/tex]
Removing the proportionality symbol
[tex]I = \frac{k}{d^2}[/tex]
Putting d = 2 and I = 30
[tex]30 = \frac{k}{(2)^2}\\30 = \frac{k}{4}\\k = 30*4\\k = 120[/tex]
Putting the value of k in the equation
[tex]I = \frac{120}{d^2}[/tex]
Putting d = 10
[tex]I = \frac{120}{(10)^2}\\I = \frac{120}{100}\\I = 1.2[/tex]
Hence,
The value of I for d = 10 will be 1.2 watts/m^3
BRAINLIST TO WHOEVER CAN HELP ME
Demonstrate that the commutative property of addition is valid by solving for the sum of 5/6 and 8/9.
Is 8/18 closer to 0 1/2 or 1
Answer:
Closer to 1\2
Step-by-step explanation:
half of 18 is 9 and if you add 1 to 8 you get 9 so 8\18 is closer to 1\2
Hope it helps!
Mia is making pickles. She uses 3/4 cup of salt when she has 9 pounds of cucumbers. How much salt will Mia use when she has 3 pounds of cucumbers?
Answer:
1/4 cup of salt. .........
What is 10% of 10$ plz
Answer:
1 dollar
Step-by-step explanation:
Answer:
1 dollar
Step-by-step explanation:
Hope this helps!
Can somebody help me on this ?
Answer:
drag the protactor so that the the bottom, middle line is centered in point B, and the bottom edge is flat against line BC
the angle will be whatever number AB lines up with on the outer ring (the big numbers)
Step-by-step explanation:
PLEASE ANSWER ASAP!
2(h -3.5) = -11
what is h?
Answer: -2
Step-by-step explanation:
2(h -3.5) = -11 Distributive property
2h - 7 = -11. Add 7 to both sides
2h = -4. Divide both sides by 2
h = -2
Answer: The answer is -2 :)
Step-by-step explanation: 2(h -3.5) = -11 distributive propert
2h-7=-11 Add -7 to both side
+7 =+7
2h=-4 Divide 2 to both side
2 = 2
h=-2
What are the x-intercepts of f(x) = x(x + 1)(x - 4)(x+8)??
Answer:
f(x)= 3x^2+5x
Step-by-step explanation:
f(x)= x(x+1)(x-4)(x+8)
f(x) = x^2 + x + x^2 - 4x + x^2 + 8x
f(x) 3x^2 + 5x
please help. im pretty stumped
Answer:
-
you write the answer here
Step-by-step explanation:
and explain here
Passes through (-4,-5) Slope = -314
Please Helppppp!!!!!!!!!!!!
Answer:
[tex]y=-314x-1261[/tex]
Step-by-step explanation:
When we are writing an equation we have to put it in slope-intercept-form [tex]y=mx+b[/tex]. We already know the slope it's -314, we replace m with the slope. Now we have to find b which is the y-intercept. So what we have to do is plug in the ordered pair into the equation. -4 for x and -5 for y.
[tex]y=mx+b\\-5=-314(-4)+b[/tex]
Now we solve
[tex]-5=-314(-4)+b\\-5= 1256+b\\b=-1261[/tex]
So now that we know everything we need we plug in and....
[tex]y=mx+b\\y=-314x-1261[/tex]
we've got our equation!
Answer:
The line slants upward, so the slope is positive.
A bag contains 15 blue marbles, 5 red marbles, and 11 green marbles. How many blue marbles must be removed from the 31 marbles in the bag so that the probability of randomly drawing a blue marble is 1/3?
1. 7
2. 12
3. 6
4. 9
5. 11
Answer:
7
Step-by-step explanation:
Plz help me it says show work to I’m confused
Answer:
1 = 7x=42 (divide both sides by 7)
7x/7 =42/7
x=6
2.=9y=81 (divide both sides by 9)
9y/9y= 81/9
y=9
3.= –40=8a (divide both sides by 8)
–40/8= 8a/8
a=5
4.=y divided 11=12
y=11 multiplied by 12
y= 132
5.= –15y=135( divide both sides by –15)
–15y/–15=135/–15
y= –9
6.= 17p=51(divide both sides by 17)
17p/17=51/17
p=3
7.= –65= –13w (divide both sides by 13)
–65/–13=–13w/–13
w=5
8.=y/–2=4
(cross multiply)
y/–2=4/1
4 multiplied by –2= –8
therefore:y= –8
Step-by-step explanation:
I HOPE THIS HELPED :)
Answer:
a) 7x=42
Step-by-step explanation
use the co-efficient of the unknown to divide both sides
7x=42
7x/7=42/7
x=6
9y=81
9y/9=81/9
y=9
-40=8a
is the same thing as
-8a=40
-8a/-8=40/-8
a=-5
y+11=12
y=12-11
y=1
-15y=135
-15y/-15=135/-15
y=9
17p=51
17p/17=51/17
p=3
-65=-13w
13w=65
13w/13=65/13
w=5
y/-2= 4
cross multiply y=-8
please i need help:/
Find the slope of the two points (-7, 8) and (4, -3).
Answer:
y = (15/24)x + 6
Step-by-step explanation:
How many one and a half L bottles does it take to fill a 16 L jug
Answer:
hmmm. i woud answer this question but i do not know how many ounces the bottles have? is this a real question or a joke,because i coud maybe help if you could be more specific.
Step-by-step explanation:
What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?
Answer:
1/33
Step-by-step explanation:
I'm assuming the 3 in 2x3 is an exponent (so hopefully that's what it is...)
When you plug in x and y, the denominator is
2(2)^3 + 3.4(5)
2x2^3= 2^4 which is 16 and 3.4x5= 17
16+17=33
Answer:
The real answer is C
Step-by-step explanation:
I took the test and I got it right pls mark brainliest.
Also hope this help.
Solve the inequality
Answer:
x ≥ -64
Step-by-step explanation:
"3/4ths of a number is greater than or equal to -48"
3/4 of a number ≥ -48
Let's say the number is x.
(3/4)x ≥ -48
Multiply both sides by 4.
3x ≥ -192
Divide both sides by 3.
x ≥ -64
This equation has one solution.
5(x - 1) + 3x = 7(x + 1)
VA
What is the solution?
Hello? STOP RIGHT THERE.... Please help me with this.
Answer: THE ANSWER IS 2 :)
Step-by-step explanation:
3(q+2) Do distributive property
3q=6 Divide 3q to both side
3q = 3q
q= 2 This is the answer
8 x (2 exponent 4 - 3) + 8 =
Answer:
130
Step-by-step explanation:
do ( ) first
²4=4×4=16
16-3=14
14×8=112
112+8=130
Which of the following expressions represents five less than three times the number M
Answer:
Which of the following expressions represents five less than three times the number M
where are option ?
Answer:
3M-5
Step-by-step explanation:
You subtract the 5 from 3M and you have to make it 3 times M so you have the 3M.
4 2/3 = 5-1/3
help please
I ran it through a calculator and the answer it gave was "Yes"
Step-by-step explanation:
Steph needs to help her parents put a fence around their pool. They want the fence to be square and want each side to measure 6 meters. They already have 10 meters of fencing. How many more meters of fencing should they buy?
Answer:
14 more meters
Step-by-step explanation:
6 times square (4) = 24
24-10 = 14
Oder these number from least to greatest -3, 5,-1, 0, 7
Answer:
-3,-1,0,5,7
Step-by-step explanation:
Answer:
-3,-1,0,5,7
Step-by-step explanation:
Expand and simplify: 3(m + 2) + 4( 6 + m)
Answer:
Step-by-step explanation:
Multiply through the 3 of the first bracket to get 3m +12. Then multiply out the second bracket by -2 to get -8m -2.
Write it out in a line: 3m + 12 - 8m -2
Simplify: -5m +10
Divide by -5 again to simplify further: m - 2
Answer:
=7m+30
Step-by-step explanation:
Distribute:
=(3)(m)+(3)(2)+(4)(6)+(4)(m)
=3m+6+24+4m
Combine Like Terms:
=3m+6+24+4m
=(3m+4m)+(6+24)
=7m+30