Answer:
12
Step-by-step explanation:
4x3=12
how do i check my answer for y-16-3y=0
Answer:
what ever y equals plug it back into the problem and if get 0=0 then u got
Step-by-step explanation:
it
3y + 8 = ½ y + 28 Find y
[tex]\text{Hi there! :]}[/tex]
[tex]\large\boxed{y = 8}[/tex]
[tex]3y + 8 = 1/2y + 28\\\\\text{Subtract 8 from both sides:}\\\\3y + 8 - 8 = 1/2y + 28 - 8\\\\3y = 1/2y + 20\\\\\text{Subtract 1/2y from both sides:}\\\\3y - 1/2y = 1/2y - 1/2y+ 20\\ \\\text{Convert 3y to 6/2y to make subtracting easier:}\\5/2y = 20\\\\\text{Divide both sides by 5/2 (Multiply by reciprocal, or 2/5):}\\\\\\5/2y * 2/5 = 20 * 2/ 5\\\\y = 8[/tex]
MONEY FOR FUN
If you earn $50,000 a year
and spend 5 percent of
that on sports and enter-
tainment, how much do
you spend per year on
sports and entertainment?
Th
Answer:
$2,500
Step-by-step explanation:
1.) 5% would be switched to decimal form which is 0.05
To do this, start with 5.
Move the the decimal point two place values to the left.
2.) Now multiply 50,000 and 0.05
3.) This equals 2,500
how do i solve for equations that have 2 variables
Answer:
To solve for an equation with two variables, substitute a zero(0) into the other variable and find one variable.
Step-by-step explanation:
To solve for an equation with two variables, substitute a zero(0) into the other variable and find one variable.
Simple Example:
3x+3y=12
Substitute 0 as y,
3x+0=12
3x=12
12/3=4
x=4
Now substitute 4 into the main equation,
3(4)+3y=12
12+3y=12
-12 -12
3y=0
0/3=0
y=0
So the answer is
3(4)+3(0)=12
12=12
The diagram below shows
two similar
similar rectangles.
Find the perimeter of the
combined figure.
5 cm
13 cm
Answer:
Perimeter of 1st rectangle=20cm
Perimeter of 2nd rectangle=52cm
I have an assignment due today. I need help.
If you have time to help me and your serious about it comment on this and I’ll send the problems I need help with.
Thank you
Answer:
62 m/s = 138.7 mi/h
Step-by-step explanation:
62 m/s = 62 x (3600/1000) x (1/1.61)
= 138.7 mi/h
Best Regards!
Patrick left an $8 tip on a $50 restaurant bill. What percent tip is that?
8 + 3a + 7 - 2a simplifies to
8+3a-2a+7=0
8+a+7=0
a+15=0
a= (-15)
Hope it helped
Thank YouJulio is paid 1.4 times hiş normal hourly rate for each hour he works over 30 hours in a week. Last week he worked 35 hours and earned $436.60. Write and solve an equation to find Julio's normal hourly rate, r. Explain how you know that your answer is reasonable. *
Answer:
Julio is paid 1.4 times his normal hourly rate for every excess hour he works in a week.
last week he worked 35 hours and got 436.60 dollars.
We need to find an equation so we can be able to solve Julio’s earnings:
=> Let X be the value of Julio’s rate
=> 30 * X + 5 x 1.4x = 436.6
=> 30x + 7x = 436.6
=> 37x = 436.6
=> 37x / 37 = 436.6 / 37
=> x = 11.8
Thus the original rate of Julio is 11.8 dollars
=> 1.4 x 11.8 = 16.52 dollars, the rate of Julio with added rate
=> 30 x 11.8 + 5 x 16.52
=> 354 + 82.6
=> 436.6
Step-by-step explanation:
what is the domain of f(x)=9-x²
A(.fx)≥9
B.All real numbers
C.-3≤x≤3
D. x≤9
Answer:
B. all real numbers
Step-by-step explanation:
hope that helps
Answer:
B hope this helps :)
Step-by-step explanation:
hello If a map is drawn using a scale of 1cm/80mi and the two cities are 280 miles apart how far apart are the cities on the map?
Answer:
3.5 cm.Step-by-step explanation:
scale 1cm : 80mi.
280mi x 1 cm
80mi
= 3.5 cm.
Answer:
3.5 cm
Step-by-step explanation:
this question is really easy to solve once you understand it!
all i did was divide 280 by 80, because 1 cm = 80 m, 280/80 = 3.5 cm
Andrea wanted to know how much farther she ran on Tuesday than on Monday. Her work is below.
A student showing work for 4.705 minus 3.6 = 4.669. The decimal for 3.6 is between the 0 and 5 in 4.705.
What mistake did Andrea make when solving the problem?
She did not align the decimal points.
She did not rename correctly.
She added instead of subtracted.
She did not subtract 15 and 6 correctly.
Answer:
its A.
Step-by-step explanation:
I just answered it :)
Answer:
She did not align the decimal points.
Step-by-step explanation:
I need help ASAP please and thank you!!:)
Answer: The mean of the data will decrease.
The median of the data will not change.
The range of the data will decrease.
Answer:
Mean original, (14.3)
Median original, (14.5)
Range original, (25)
After removing 35
Mean: 13.1
Median: 14.5
Range: 7
Step-by-step explanation:
mean- add all numbers together and divide by the amount of numbers there.
median- the middle number.
range- the largest minus the smallest number.
show work
1) n - 8 = -3
2) -2m=-24
3) m/2=-7
4) 2/3y=20
(20 points for answers all)
Answer:
n = 5m = 12m= -14y =30Step-by-step explanation:
1.
[tex]n -8 =-3\\\\Collect\:like\:terms\\n = -3+8\\\\Simplify ; -3+8 = 5\\\\n =5[/tex]
2.
[tex]-2m=-24\\\\Divide\: both \:sides\:of\:the\:equation\:by\:-2\\\\\frac{-2m}{-2} = \frac{-24}{-2} \\\\Simplify ; -2m/-2 = m , -24/-2 = 12\\\\m =12[/tex]
3.
[tex]\frac{m}{2}=-7\\\\Cross\:Multiply\\\\m\times 1 = 2\times -7\\\\m = -14[/tex]
4.
[tex]\frac{2}{3}y=20\\ \\\frac{2}{3} y = \frac{20}{1} \\\\Cross\:Multiply\\\\2y\times 1 = 3\times 20\\\\2y = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2y}{2}=\frac{60}{2}\\\\Simplify\\y = 30[/tex]
I NEED HELP ASAPP PLEASE THIS IS DUE FOR SCHOOL PLEASE HELP ASAP and I don't have a calculator at home so I can't do this 2{3+10/2+62-(4+2)}
Answer:
128
Step-by-step explanation:
A rectangle has a length of 8.3cm and a permimeter of 22.4 cm. Enter the widty of the rectangle, in decimal form, in the box.
Answer:
the width is 2.9
Step-by-step explanation:the perimeter is found by L+W+L+W. Each L is going to be the same length and each width is going to be the same length since its a rectangle.
Double the length. 8.3+8.3= 16.6
Then subtract that from the perimeter. 22.4-16.6= 5.8
Then divide 5.8 as that is the total of the two missing sides. 5.8/2= 2.9
Then 2.9 is your answer. Hope that helps.
Solve the system of inequalities: a) .4x−1≤0
2.3x≥4.6
Answer:
(a) [tex]x \leq 2.5[/tex]
(b) [tex]x \geq 2[/tex]
Step-by-step explanation:
Solving (a):
[tex]0.4x - 1 \leq 0[/tex]
Add 1 to both sides
[tex]0.4x - 1 + 1\leq 0 + 1[/tex]
[tex]0.4x \leq 1[/tex]
Solve for x
[tex]x \leq 1/0.4[/tex]
[tex]x \leq 2.5[/tex]
Solving (b):
[tex]2.3x \geq 4.6[/tex]
Solve for x
[tex]x \geq 4.6/2.3[/tex]
[tex]x \geq 2[/tex]
help please my teacher won't help me .
the answer to #2
Answer:
b
Step-by-step explanation:
a is not correct because the domain includes negative numbers as well
c is not correct because the domain includes positive numbers as well
and
d is not correct because the range for this function includes ordered pairs from the quadrants I and III (not I and IV)
hope this helps :)
Multiply (−7)(2)(−2).
Answer:
28
Step-by-step explanation:
-7 × 2 = -14Plug -14: -14 × -2-14 × -2 = 28I hope this helps!
Answer:
28!
Step-by-step explanation:
Question is -4x + 14 = 54
Answer: x = -10
Step-by-step explanation:
find the value of [tex]\sqrt[3]{8}[/tex]
Answer:
∛8 = 2
Step-by-step explanation:
[tex]\sqrt[3]{8}[/tex]
=2
2*2*2 = 8
For f(x) = -3x - 5, find f(-11). Explain what f(11) really means for the problem ?? Need this in like the next 4 hours please!!!!
Answer:
for -11, 28. for 11, -38
Step-by-step explanation:
Typos in your question. can't tell if you need -11 or pos 11
-3(-11)-5 = 33-5= 28
-3(11)-5 = -33-5 = -38
Help me please. I need your help please.
Answer:
8/54 or 4/27
Step-by-step explanation:
(8/9)/6 =
8/9 ÷ 6 when divide turn the division sign into multiplication and flip the second fraction ( reciprocal))
8/9*1/6 = 8/54 if simplified =4/27
Answer:
4/27
Step-by-step explanation:
8/9 ÷ 6 = 4/27
Lindsey started a savings account with $260. After 4 weeks, she has $315 dollars. After
8 weeks, she had $370. What is the rate of change of money in her savings account per
week?
Answer:
$13.75
Step-by-step explanation:
0 weeks = 260
4 weeks = 315
8 weeks = 370
Every 4 weeks, the rate of change is $55 as can be seen by 315 - 260 = 55 and 370 - 315 = 55.
Per week, the rate of change is $13.75 This is because $55 ÷ 4 weeks = rate of change per week
55 ÷ 4 = 13.75
HELPPPPPPPPP MEEEEEEEEE! DUE IN 30 MIN!!! I REALLY NEED HELP WITH THIS PROBLEM!!!
Professor Slughorn has created and sold three different magical potions where if a person drinks them, he or she magically can fly, breathe underwater, or read minds. He sold ten more flying potions than mind-reading potions. The number of breathing underwater potions he counted was two more than three times the number of mind-reading potions. If he sold a total number of 102 potions, how many were for breathing underwater?
Answer:
56 underwater breathing potions.
Step-by-step explanation:
Written algebraicly, f=m+10 and b=3m+2, with f being flying potions, b being breathing underwater, and m being mind reading potions. We know that f+b+m=102, so replace f and b with the equations. You get m+10 + 3m+2 + m +102. Combine like terms to get 5m+12+102. Subtract 12 from both sides to get 5m=90, and divide both sides by 5 to get m=18. Now take b=3m+2 and replace m with 18. Now you have b=3(18)+2. 3 times 18 is 54, plus 2 is 56. :)
please solve this step by step I'll mark you as brainliest b(a-6)=
A is the midpoint of BC.
BA = 3x+8
AC=23.
solve for x
Since A is the midpoint of BC, we can assume BA and AC are equal to each other.
We also know that BC = BA + AC = 23 + 23 = 46
Jasmine was observing her farm from a hot air ballon when she accidently dropped her telescope. As always on earth the formula to find the distance has fallen , d, after t seconds, is the triangle D= 16t^2. How far has the telescope fallen after 1 second. First person to answer gets brainliest
Answer:
D=16m
Step-by-step explanation:
D=16t^2
D=16×1
D=16m
Solve for d:
df + 5d = h
Answer:
d=hf+5
Step-by-step explanation:
Step 1: Factor out variable d.
d(f+5)=h
Step 2: Divide both sides by f+5.
d(f+5)f+5=hf+5
d=hf+5
Need help answering question 4
Answer:
(-1,5)
Step-by-step explanation:
To find this, you have to add both "x" coordinates, then divide them by two.
Same thing goes for the "y" coordinates, add them, then divide them by two.
x-coordinates ---> 2+(-4)= -2
y-coordinates ---> 1+9= 10
-2÷2= -1
10÷2= 5
That gives you, (-1,5).