"Find the measures of two supplementary angles if their measures are 3:7
Since the ratio is 3:7 we can assume that the angles are equal to 3x and 7x?"
3x+7x=180° (180° since a line is equal to that)
then solve
10x=180
x=18
then substitute x=18 in 3x and 7x
3x=54°. 4x=126°
126° and 54°
Let the two angles be 3x and 7x.
Supplementary angles add up to 180 degrees.
Therefore:
3x + 7x = 180
10x = 180
x = 18
3x = 3 * 18 = 54
7x = 7 * 18 = 126
Answer:
The two angles are 54 degrees and 126 degrees.
oliver drove the first 90 miles of his journey in 1.5 hours and the remaining 120 miles in 3 hours. what was the total average speed
90 miles + 120 miles = 210 total miles
1.5 hours + 3 hours = 4.5 total hours.
Average speed = total distance / total time
Average speed = 210 miles / 4.5 hours = 46 2/3 miles per hour
The total average speed for Oliver is 42 miles per hour
Given the following data:
Distance A = 90 milesDistance B = 120 milesTime A = 1.5 hoursTime B = 3 hoursTo find the total average speed:
First of all, we would determine the total distance and total speed:
[tex]Total \; distance = Distance\;A + Distance\;B\\\\Total \; distance = 90+120\\\\Total \; distance = 210\;miles[/tex]
[tex]Total \; time = Time\;A + Time\;B\\\\Total \; distance = 1.5+3\\\\Total \; distance = 4.5\;hours[/tex]
Mathematically, the average speed is given by the formula:
[tex]Average\;speed = \frac{Total\;distance}{Total\;time}[/tex]
Substituting the parameters into the formula, we have;
[tex]Average\;speed = \frac{210}{4.5}[/tex]
Average speed = 42 miles per hour.
Read more: https://brainly.com/question/17742679
Don is 6 feet tall. At a given time of day, he measures his shadow to be 10 feet long.
At the same time, he measures the shadow length of a nearby tree to be 38 feet. How
tall is the tree?
Round your answer to the nearest whole foot.
Answer:
Ok, so with this problem, you would start with the equation 6/10=x/38.
Then, cross multiply:
38(6)=10x
After, you would:
38 x 6 = 228
Then:
228/10
Lastly:
x=22.8m which when rounded equals 23 ft.
Sasha goes on a cave tour with her family. She spots a mysterious crystal that is shaped like a cube. The crystal has edge lengths of 5 centimeters. What is the volume of the crystal?
Answer:
Sasha
Step-by-step explanation:
Sasha should figure out what the volume of the crystal is by herself.
Jared is behind on his math homework. He has 12 lessons of math to do before Monday. He
can answer two math problems each minute. If a typical lesson has 25 problems, how much
time should he expect to spend doing his math? Show all work and show your answer in
hour and minutog
Step-by-step explanation:
the numbers of the problems =
12 × 25 = 300
each minute he can answer 2 problems
therefore, the time that he expect to finish the problems =
300/2 × 1 minute = 150 minutes
= 2 hours and 30 minutes
2 questions he can solve 1 min
per question he need 1/2min or 0.5min
Now
Total problems
25(12)300Total time
300(0.5)150min2h 30minhelp this is hard for me, please..I give brainliest
also this is 20 points
Answer:
-14 Mexican pesos means you have a debt of $0.67 at today's exchange rates.
Step-by-step explanation:
= Homework: Lsn 30- Review For Midterm #1 QL 2. A wheel made 200 revolutions at 275 revolutions per minute. How many minutes did it rotate? 7 63 How many minutes did the wheel rotate? 7 191 (Type a whole number, proper fraction, or mixed number)
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Answer:
8/11 minutes
Step-by-step explanation:
To find the time, divide the quantity by the rate:
(200 rev)/(275 rev/min) = (200/275) min = 8/11 min
The wheel rotated for 8/11 minutes.
10 + 10+ 10 = 4x
What does x equal?
Answer:
x=7.5
Step-by-step explanation:
10+10+10=4x
30=4x
x=7.5
Answer:
x=7.5
Step-by-step explanation:
First you would simplify:
30=4x
Next isolate x:
30/4=x
again, simplify:
7.5=x or, 7 1/2=x
Whats x for both of these equations
Answer:
x = (-1)y = 3Step-by-step explanation:
y = -2x + 1
y = x + 4
2x + y = 1 _______(1)
-x + y = 4_______(2)
[tex] - x + y - (2x + y) = 4 - 1 \\ - x + y - 2x - y = 3 \\ - 3x = 3 \\ x = \frac{3}{ - 3} \\ x = - (1) \\ [/tex]
x = (-1),
[tex]2x + y = 1 \\ 2( - 1) + y = 1 \\ - 2 + y = 1 \\ y = 1 + 2 \\ y = 3 \\ [/tex]
What is the volume of a cylinder with a radius of 3 cm and a height of 5 cm?
28.26 cm
O
141.3 cm3
O
28.26 cm3
O 141.3 cm
Answer:
141.3 cm³
Step-by-step explanation:
V=πr2h=π·32·5≈141.37167cm³
Answer
Volume ≈ 141.37cm³
2
f(x) = -x2+x+6
-2
a
-1
4
0
b
1
6
2
с
a=
b =
C=
Find the value of this expression if x = 1 and
y=-7.
xy
-9
Answer:
the answer is 7/9............
given..
expression is x^2y/-9
value of x=1
value of y=-7
then.... putting value of x and y in the given equation...
we get .
={1^2*(-7)}/-9
={1*(-7)}/-9
=(-7)/-9
=7/9
Step-by-step explanation:
x²y/-9
1²(-7)/-9
-7/-9
7/9.
hope this helps you.
-7/10 + ? = -2 9/20 =
Answer:
-7/10 -13/10=-2
Step-by-step explanation:
?=x
-7/10+x=-2
x=-2+7/10
x=-20/10+7/10
x=-13/10
?=-13/10
So: -7/10-13/10=-2
The scale on a map is 2cm =70 miles. If the distance between two cities measure 5.8cm on the map what is the actual distance
Answer:
203cm
Step-by-step explanation:
I think that's the answer bc 70divided by 2=35
35x5.3 =203cm
Kiaya recorded the distance she rode her bike during four different workouts. She rode the same number of kilometers per hour during each workout.
Answer:
d
Step-by-step explanation:
Graph the line with slope -1/3 passing through the point (2, 1).
Answer:
Step-by-step explanation:
y = mx + b
y = -x/3 + b
1 = -2/3 + b
b = 5/3
y = -x/3 + 5/3
12) Triangle DEF is the image of triangle ABC
after a series of rigid motion transformations.
B
A
F
D
E
Which one of the following statements is true?
1) The measure of angle A is the same as the
measure of angle E.
2) Segment AC has the same length as
segment DF.
3) One transformation in the series must have
been a dilation.
4) Segment EF is congruent to segment AC.
Step-by-step explanation:
the correct answer is :
2) Segment AC has the same length as segment DF
The digits in 5512 are rearranged to form all possible 4-digit positive integers. Find the last three digits of the sum of all such positive integers.
Answer:
329Step-by-step explanation:
There are possible:
4*4 = 16 4-digit numbers and since 5 is repeated, the number becomes:4*3 = 12The numbers are:
125515251552215525152551512551525215525155125521The sum is:
43329The last 3 digits of the sum is 329
Question
Francie rode her bike for 2.5
hours at 12 miles per hour. How far did she ride?
Answer:
30 miles
Step-by-step explanation:
2.5 h
12 miles per hour
12x2.5=30
need help with What is F(x)=a*b^x please explain the steps
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Answer:
33(1,6)2f(x) = 3·2^xStep-by-step explanation:
The blanks you're to fill in explain the steps.
The y-intercept is the value of the function when x=0. It is where the graph crosses the y-axis.
f(0) = a·b^0 = a·1 = a
Reading the y-intercept from the graph, we see ...
The y-intercept is 3. The a-value of the function is 3.
__
The point when x=1 is ...
f(1) = a·b^1 = 3b
Reading the value from the graph, we find the point to be (1, 6). This means ...
3b = 6
b = 2 . . . . . . . divide both sides by 3
The point when x=1 is (1, 6). The b-value of the function is 2.
The equation of the function is f(x) = 3·2^x.
Michael bought 8 new Pokemon cards to add to his collection.
The next day his dog ate half of his collection. There are now only
40 cards left. How many cards did Michael start with?
Answer:
72
Step-by-step explanation:
I like to work backward with problems like these. I'll start out with 40. Then it says that his dog ate half of this number. Instead of dividing by 2, I'll have to multiply by two since I'm working backward.
So, now I have 80, the number of cards he had before his dog ate half of the collection. We also see that he bought 8 new Pokemon cards and added these two his collection. Instead of adding 8, I'll subtract 8 from 80, giving me 72. So, this is his original amount.
If I take this number and go back through the scenario, I can check my work.
72 + 8 = 80, 80/2 = 40
-79=7w+3(4w-1) help quick with steps
Answer:
-4=w
Step-by-step explanation:
-79=7w+12w-3
-79=19w-3
-79+3=19w-3+3
-76=19w
-76÷19=19w÷19
-4=w
Answer:
w = -4.
Step-by-step explanation:
-79 = 7w + 3(4w - 1)
7w + 12w - 3 = -79
19w = -76
w = -4.
which expression is equivalent to ([tex](x^{2} )^3[/tex]
[tex]x^{8}[/tex]
[tex]x^{6}[/tex]
[tex]x^{5}[/tex]
35 divided by 8693 long division or decimal form thank u
Answer:
0.004026228
Step-by-step explanation:
[tex]\frac{35}{8690} \\\\[/tex]
we would add zeros past the decimal point to the 35 to get
35.0000/8690
then 8690 goes into 35000 4 times and so on so forth until you get the answer 0.004026228
its easier to explain with the long division form where you can show the subtraction and carrying completely
9/2 divided by 2/9=_ the lesson is called dividing fractions
in an 16 ounce bag there are 24 pretzals. how many pretzals will be in a 5 ounce bag
Answer:
about 7 pretzels
7.5 pretzels
Step-by-step explanation:
24 pretzels / 16 ounces = x / 5 oz
solve for x:
x = 5 oz * (24 pretzels / 16 oz)
oz cancels
x = 7.5 pretzels
7.5 pretzels, or roughly 7 pretzels
Adam volunteers once a month to make meals for the elderly. He has 81 pieces of chicken, 27 pieces of corn, and 54 rolls.
Each plate must have exactly the same number of pieces of each food item and all the food must be used.
What is the greatest number of plates he can make?
Answer:
27 plates
Step-by-step explanation:
81 ÷3=27 chicken pieces
27 pieces of corn (one piece of corn per plate)
54÷2=27 two pieces of bread per plate
The total weight limit for a truck is 100,000 lb. The truck weighs 36,000 lb empty. What is the most that the truck's load can weigh?
Answer: 64,000} lbs
Step-by-step explanation: hope it helps ! <3!
Need helppppppppppppppppppppp
Answer: x = 45cm
Step-by-step explanation: 27/18 = 1.5
1.5 is your scale factor now do 30 x 1.5 and you will get 45
Please help i need help
Answer:
10x^3+16
Step-by-step explanation:
f(g(x)) means that for that for "x" number of tickets, he is making that amount.
Hope this helps