Answer:
(x,y)=(1/2,0)
Step-by-step explanation:
rewrite the expression
-2x+y=-1
1-4x+y=-1
(c) 80 people entered the marathon. 85% of
finished in under three hours. How many
people finished in under three hours?
Answer:
68 people
Step-by-step explanation:
Find how many finished in under 3 hours by multiplying 80 by 0.85
80(0.85)
= 68
So, 68 people finished in under 3 hours
I WILL GIVE YOU BRAINERLEST AND A LIKE
Olivia's father is going to build a new
deck in the backyard. He draws this
design for the deck.
What is the area of the deck
Answer:
A=15
Step-by-step explanation:
What's the circumference of a
circle with a diameter of 18 inches?
Use 3.14 for n.
C = [?] inches
Answer:
56.55 inches
Step-by-step explanation:
What is the mass of a box that weighs 1.4 kilograms? (1,000 grams = 1 kilogram)
A. 14,000 g
B. 140 g
C. 1.4 g
D. 1,400 g
Answer:
D
Step-by-step explanation:
Answer:
it is D im 99% sure
Step-by-step explanation:
dddddddd
=
O LINEAR The length of a rectangle is 6 cm longer than its width.
If the perimeter of the rectangle is 56 cm, find its length and width.
cm
Х
length: 0
width: Ich
?
cm
Answer:
I. L = 17 cm.
II. W = 11 cm.
Step-by-step explanation:
Let the length of the rectangle be L.
Let the width of the rectangle be W.
Given the following data;
Perimeter of rectangle = 56cm
Translating the word problem into an algebraic expression, we have;
L = W + 6 .....equation 1
The perimeter of a rectangle is given by the formula;
P = 2(L + W)
56 = 2(L + W) ......equation 2
Substituting eqn 1 into eqn 2, we have;
56 = 2(W + 6 + W)
56 = 2(6 + 2W)
Opening the bracket, we have;
56 = 12 + 4W
4W = 56 - 12
4W = 44
W = 44/4
W = 11 cm
Next, we would find the length of the rectangle;
From eqn 1;
L = W + 6
L = 11 + 6
L = 17 cm
HEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLP
Answer:
7.)[tex]\frac{1}{2}[/tex]
8.) [tex]\frac{1}{8}[/tex]
9.)[tex]\frac{1}{3}[/tex]
10.)[tex]\frac{1}{6}[/tex]×[tex]\frac{1}{2}[/tex]=[tex]\frac{1}{12}[/tex]
I should know, I finished this like, a month ago?
what is the mean of 4,5,8,3,4
Answer:
4.8
Step-by-step explanation:
4+5+8+3+4=24
24/5=4.8
I need a tutor please
Answer:
Ok I can help!
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
African elephants can eat up to 500 pounds of vegetation in one day. How many pounds of vegetation could an elephant eat in a week?
pls answer its due to tomorrow ;-;
Answer:
they would eat 3500 pounds of food in 1 week
Step-by-step explanation:
its simple math just multiply 500 by 7 and you would get 3500
10 Points Please help me
Subtract.Write your answer as a fraction or a whole or mixed number. 10 1/3-3 2/3=
Answer:
as a mixed fraction 6 2/3, improper fraction 20/3
here's the question
Answer:
60
Step-by-step explanation:
perimeter (p) = 8 + 17 + 15 = 40
semi-perimeter (s) = p/2 = 20
Area = square root of s(s-a)(s-b)(s-c) where a,b,c are the sides of the triange by Herons formula.
Therefore, area = 20(20-8)(20-15)(20-17) = square root of 3600 = 60
From an observation point A, a forest ranger sights a fire at a bearing of 215°50'. From a point b, 8 miles due west of A another ranger sights the fire at a bearing of 125°50'. Approximate to the nearest tenth of a mile, the distance of the fire from A.
Answer:
Step-by-steYou have two angles,
A=32°20'
B=57°40'
so, angle F at the fire, is 90°
d/5 = cosA = .845
d = 4.2 mi
If angle F had not been 90°, then using the law of sines,
d/sinA = 5/sinF
for this problem, sinF = 1p explanation:
Answer:
Step-by-step explanation:
Please help me! I really don't understand this.
Answer:
B
Step-by-step explanation:
x is less than -1 and the point is on -1.
the perimeter of a rectangle is 240 ft., If the length is 12 ft., then what is the width
Answer:
w=108
Step-by-step explanation:
Using the formula
P=2(l+w)
Solving for w
w=P /2﹣l = 240 /2﹣12 = 108
Answer:
width=20
Step-by-step explanation:
the area of a rectangle= length times width
12x=240
then you divide 12 by both sides, so the answer is 20
Solve each inequality. Then check each number that is a solution
I Don't know how to solve this. as nothing has helped so far.
Answer:
3, 6, 4, 5
Step-by-step explanation:
First of all we have to multiply 2 by 2x and -9 and we obtain
4x -18 ≤ 6
now we have to move -18 on the right side of the minor or equal and change its sign
4x ≤ 6 + 18
now we have to added up 6 and 18
4x ≤ 24
At least we have to divide the the two members by 4
x ≤ 6
We have to find the numbers ≤ 6
so the answer is : 3, 6, 4, 5
Answer:
click on 3,6,4,5 are less than or equal to 6
Step-by-step explanation:
2(2×3-9)= -6
2(2×6-9)= 6
2(2×4-9)= -2
2(2×5-9)= 2
2(2×7-9)= 10
31/50-13/25 im simplest form
Answer:
0.62 is simple already as a fraction!!
0.52 also simple as fraction
Step-by-step explanation:
GIVING OUT BRAINLIEST ANSWER !! PLS HELP ME OUT !! (last minute)
Answer:
iḿ pretty sure it´s A, 29.7 !!
Step-by-step explanation:
Abag contains 2 Snicker
bars, 8 Trix bars, and 5
Crunch bars. A candy bar
is chosen, replaced, then
another is chosen. What is
the probability of choosing a
Trix bar then a Crunch bar?
Answer: the probability will be 3 because 8-5=3 and there was 8 trix bars and 5 crunch bars and which means it will be 3
Step-by-step explanation:
Due in 10 min plz help
Answer:
9 cm
Step-by-step explanation:
Answer:
9cm
Step-by-step explanation:
how to find selling price when cost price and profit is given
so the selling price is pretty much the cost price + the profit
so its
selling price = cost price + profit
Find 110.9% of 133. Round to the nearest hundredth.
Answer:
147.50
Step-by-step explanation:
It is easy to set up the equation as a “butterfly”
x/133 = 110.9/100
cross multiply:
133(110.9)=100x
14749.7=100x ————-divide by 100 to get x alone
147.497 which would round to 147.50
Answer:
147.50
Step-by-step explanation:
BIG BRAIN AND MENTAL MATH
32 / (-4) . 3 - (-1)
Answer:
-32
Explanation:
32/ -4 = -8
3 - -1 = 3+1 = 4
-8x4 = -32
Is 12.8 greater than 12.815?
Answer:
No,
12.8 = 12.800
Obviously, 12.800 < 12.815.
[tex] \infty \infty [/tex]
Answer:
[tex]12.8 < 12.815 \: \\ with \: a \:range \: of \: 0.015[/tex]
Use the area of the rectangle to find the area of the triangle
An engineer traveled 150 mi by car and then an additional 630 mi by plane. The rate of the plane was three times the rate of the car. The total trip took 8 h. Find the rate of the car.
Answer:
Step-by-step explanation:
150 mile by car x mph
630 mile by plane 3x mph
Total travel time equal 8 hours
150 / x mile / (mile / hour) = hour
630 / 3x mile / (mile / hour) = hour
150/x + 630/3x = 8 hours
450/3x + 630/3x = 8 hours
450 + 630 = 8(3x) = 24x
1080 = 24x
45 = x the rate of the car is 45 mph
If K is the center of the circle, which line segment is the radius?
the line segment KN is the radius
Dana bought 144 pencils for $8.64.which equation could be used to determine the cost of each pencil,x?
A.144/8.64=x
B.x/144=8.64
C.8.64-x=144
D.144x=8.64
Answer:
144x=8.64
This way you can divide by 144 to find how much each individual pencil costs
20 PTS LOOK AT PIC FOR QUESTION WILL MARK BRAINILEST clc
Answer:
295 square feet
Step-by-step explanation:
Break the figure up into 3 rectangles, and then find the area of each rectangle and add all areas together.
15*3=45
19*10=190
15*4=60
45+190+60=295
Answer:26 *15*4*5*3=23400
Step-by-step explanation: Area is measured in square units such as square inches, square feet or square meters. To find the area of a rectangle, multiply the length by the width. The formula is: A = L * W where A is the area, L is the length, W is the width, and * means multiply.
Order the numbers from least to greatest. 35.0 135.9 35.0 35.061
Answer:
35.0 , 35.0 , 35.061 , 135.9
Step-by-step explanation:
