2(-20)+3[5/4(20)]+4(50)
Answers
-40 +3*25 +200 = 35 +200 = 235
![2(-20)+3[5/4(20)]+4(50)](https://i5t5.c14.e2-1.dev/c-qa-images/answers/attachments/Dqnk1vRn57CWruFGsCSAsXYGScpBYdgK.jpeg)
Related Questions
If postage costs $.54 the 1st ounce and $.22 for each additional ounce calculate the cost of mailing a 10 ounce envelope.
A. $5.40
B. $2.20
C. $5.08
D. $2.52
Answers
HELPPPPPP
Safety standards require a pool to add 3 chlorine tablets to every 2,000 gallons of water. Today, the lifeguards at Park Pool added 8 chlorine tablets to their pool's 10,000 gallons of water. How does Park Pool's chlorine compare to the safety standards?
Answers
They have less chlorine than the safety standards require.
Answer: With the help of Ratio we can compare Park Pool's chlorine to the safety standards.
Step-by-step explanation:
Since we have given that
Safety standards requires a pool to add 3 chlorine tablets to every 2,000 gallons of water.
Number of chlorine tablets = 3
Volume of water = 2000 gallons
So, Ratio will be
[tex]3:2000\\\\=1:\frac{2000}{3}\\\\=1:666.67[/tex]
Now, According to question, the lifeguards at Park Pool added 8 chlorine tablets to their pool's 10000 gallons of water.
So, Number of chlorine tablets = 8
Volume of water = 10000 gallons
So, Ratio will be
[tex]8:10000\\\\1:1250[/tex]
Hence, with the help of Ratio we can compare Park Pool's chlorine to the safety standards.
WILL GIVE 99 POINTS IF ANSWERED ASAP PLEASE
Answers
Answer:
Part A
1. Perimeter of the outside edges = 24 inches
2. One possibility is: length = 8 in. and width = 8 in.
second possibility is: length = 16 in. and width = 4 in.
3. Area of the wood portion = 11 [tex]inches^{2}[/tex]
4. New dimensions are:
Length = 17.5 ft.
Width = 12.5 ft.
Part B
Area of the picture = 24 [tex]inches^{2}[/tex]
Area of the frame = 35 [tex]inches^{2}[/tex]
Step-by-step explanation:
Part A
1. Perimeter of the outside edges = 2(length + width)
= 2(7 + 5)
= 2(12)
= 24 inches
2. If the area of the frame was 64 [tex]inches^{2}[/tex], then the two possible dimensions are:
8 × 8 and 16 × 4
i.e., one possibility is: length = 8 in. and width = 8 in.
second possibility is: length = 16 in. and width = 4 in.
3. Area of the wood portion = Area of the frame - Area of the picture
= (5 × 7) - (4 × 6)
= 35 - 24
= 11 [tex]inches^{2}[/tex]
4. The scale factor is:
1 in. = 2.5 ft.
So, its length = 7 in. = 7(2.5) = 17.5 ft.
width = 5in. = 5(2.5) = 12.5 ft.
Part B:
Length of the picture = 6in.
Width of the picture = 4 in.
Area of the picture = Length × Width
= 6 × 4
= 24 [tex]inches^{2}[/tex]
Length of the frame = 7in.
Width of the frame = 5 in.
Area of the frame = 7 × 5 = 35 [tex]inches^{2}[/tex]
Part A
1) Perimeter of the outside edges
24 inches
2) One possibility is:
length- 8 inches
and width - 8 inches
3) Area of the wood portion
= 11
4) New dimensions are:
Length - 17.5 feet
Width - 12.5 feet
Part B
Area of the picture
- 24
Area of the frame
- 35
Step-by-step explanation:
first part-
1) Perimeter of the outside edges = 2(length + width)
= 2(7 + 5)
= 2(12)
= 24 in
2) if the area of the frame was 64 then there are two possible dimensions
8 × 8 and 16 × 4
the first possibility
length = 8 inches
width = 8 inches
the second possibility
length = 16 inches
width = 4 inches
3) Area of the wood portion= Area of frame - Area of picture
= (5 × 7) - (4 × 6)
= 35 - 24
= 11
4)The scale factor
1 inches = 2.5 feet
length = 7 inches
= 7(2.5)
= 17.5 feet
width = 5 inches
= 5(2.5)
= 12.5 feet
Second part-
Length of picture
= 6 inches
Width of picture
= 4 inches
Area of the picture
(Length × Width)
= 6 × 4
= 24
Length of frame = 7 inches
Width of frame = 5 inches
Area of frame = 7 × 5 = 35
If this helped you please say thanks and mark brainliest
Which are equivalent ratios to 4:9?
Check all that are true.
9:28
20:45
12:27
4:24
8:18
Answers
Final answer:
The equivalent ratios to 4:9 are 20:45, 12:27, and 8:18 because they all simplify proportionally to 4:9.
Explanation:
To determine which of the given ratios are equivalent to 4:9, we need to have ratios that can be simplified to 4:9 or for which 4:9 can be scaled up proportionally. We check each given ratio by either simplifying it or finding a common multiplier that would lead us back to 4:9.
9:28 is not equivalent because it does not simplify to 4:9 or scale from 4:9.20:45 simplifies to 4:9 when both numbers are divided by 5.12:27 simplifies to 4:9 when both numbers are divided by 3.4:24 is not equivalent because it simplifies to 1:6, not 4:9.8:18 simplifies to 4:9 when both numbers are divided by 2.Therefore, 20:45, 12:27, and 8:18 are equivalent ratios to 4:9.
A model car has a windshield with dimensions 1/18 the size of a real car windshield. They rectangular windshield of the real car has an area of about 2318 square inches, with a width of 61 inches. What are the side lengths of the model car's windshield? Round to the nearest hundredth. Justify your answer
Answers
The first step here is to figure out the missing length of the real car. We know the area is 2318 square inches, and the width is 61 inches. Since the area of a rectangle is length x width, we can find the length by doing the opposite of multiplication which is division.
2318 ÷ 61 = 38
So the dimensions of the real car windshield is 61 and 38.
Now, we have to find what 1/18 of 61 is, and what 1/18 of 38 is. We can divide 61 and 38 by 18 to find these values.
The attached image shows that division process, and how we can take it a step further to find the area of the model car windshield.
Answer:
A. 2375 inches
Step-by-step explanation:
just did it lol
A hollow ball is made up of rubber that is 2 centimeters thick. The ball has a radius to the outside surface of 6 centimeters. What is the approximate volume of rubber used to make the ball? Use 3.14 for pi.
a. 33.5cm^3
b. 267.9cm^3
c. 636.4cm^3
d. 994.3cm^3
Answers
The volume of rubber used to make the hollow ball is approximately 636.4 cm^3, which is calculated by subtracting the inner space volume from the total volume of the ball.
To find the volume of rubber used to make a hollow ball, we need to calculate the volume of the entire ball and then subtract the volume of the inner empty space. The ball's external radius is 6 centimeters, and the rubber thickness is 2 centimeters, which makes the inner radius 4 centimeters (6cm - 2cm).
The formula to calculate the volume of a sphere is V = (4/3)
y. Using
for pi and plugging in the numbers, we get:
(6)
= 904.32 cmVolume of the inner space (inner radius of 4cm): V = (4/3) 3.14 (4)
= 268.08 cm
To find the volume of the rubber used, we subtract the smaller volume from the larger volume:
904.32 cm - 268.08 cm = 636.24 cm
Therefore, option c. 636.4cm is the approximate volume of rubber used to make the ball.
Jose creates a scale drawing of a character from one of his comic books using a scale factor of 40%. Caroline wants to use Jose’s scale drawing to create the original-size image of the comic book character. What scale factor will Caroline need to use to draw the original-size image?
Answers
250% is scale factor will Caroline need to use to draw the original-size image.
What is Scale Factor?A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size.
To adjust the size of a figure without altering its shape, a scale factor is a number or conversion factor that is utilised. It is employed to change the size of an object.
Given:
Scale Factor= 40%
As, Jacob use the scale factor= 40%
So, the new image size
= 100 x 40/100
= 40
let Caroline use x% scale factor
then, 40x/100= 100
x= 100 x 100 /40
x= 250%
Hence, 250% is scale factor will Caroline need to use to draw the original-size image.
Learn more about scale factor here:
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Sharon has a balance of $3,825 on her credit card. If the card has an annual rate of 20.99% how much is the finance charge for this month? $802.87 $219.96 $66.96 $20.99
Answers
1.7492/100 * 3825 = 66.91
66.91 is just a rounding error. <<<=== answer.
A rope is 72 feet long. What is the length of the rope in yards
Answers
Rewrite the following expression in standard form by finding common denominator and collecting like terms
Answers
The denominators of our fractions are 3, 6, and 9. 3 is already a prime, so we are going to let that one alone. 6 on the other hand is divisible by tow, so it can be decomposed into tow prime factors 2 and 3: [tex]6=(2)(3)[/tex].
9 is divisible by 3, so it can also be decomposed into tow prime factors 3 and 3: [tex]9=(3)(3)=3^{2} [/tex].
We have a common factor 3 in all our denominators, and among them the one raised to the highest power is [tex]3^{2} [/tex]. On the other hand we only have one non-common factor, 2. So, our common denominator will be:
[tex]common.denominator=(3^{2} )(2)=(9)(2)=18[/tex]
Now we know that the common denominator of our standard form fraction is 18, the only thing left is convert the denominators of each one of our fractions to 18 and simplify. To do that we are going to divide the common denominator by the denominator of each fraction, and then multiply the quotient by each one of the numerators:
[tex] \frac{2h}{3} - \frac{h}{9}+ \frac{h-4}{6} = \frac{(6)(2h)-(2)(h)+3(h-4)}{18} [/tex]
[tex] \frac{12h-2h+3h-12}{18} [/tex]
[tex] \frac{13h-12}{18} [/tex]
Answer: [tex] \frac{13h-12}{18} [/tex]
20 POINTS, PLZ HELP!
The circumference of a circular tabletop is 72 π inches. What is the area, in square inches, of the tabletop?
144π
5185 π
1296 π
36π
WILL MARK BRANLIEST 20 POINTS!
Answers
] The circumference=72π, this the radius will be found as follows:
C=2πr
therefore radius r will be:
2πr=72ππ
r=(72ππ)/(2π)
r=36
hence:
Area=πr²=π(36)²=1296π
when 4 is added to the difference between 5 times a number and 9 the result is greater than 10 * to 4 times the number what's the number
Answers
5x - 9 > x * 10000 I hope I'm reading the question correctly.
5x > 10000 x + 9
x > 10000/5 x + 9/5
x > 2000x + 1.8
0 > 1999x + 1.8
- 1.8 > 1999x
- 1.8 / 1999 > x
- 0.0009004 > x
Shauna bought a flat cardboard box
Answers
In the figure, lines a, b, and c are parallel and m∠4=156° . Drag and drop the correct angle measure for each angle.
Answers
well done:)
but please Brainliest mark me as the answer and thank me
and all the best
Answer:
[tex]m<1=156\°[/tex]
[tex]m<2=24\°[/tex]
[tex]m<3=24\°[/tex]
[tex]m<5=156\°[/tex]
Step-by-step explanation:
Part 1) If line a is parallel to line b
then
[tex]m<1=m<4[/tex] -----> by alternate exterior angles
so
we have
[tex]m<4=156\°[/tex]
therefore
[tex]m<1=156\°[/tex]
Part 2) we know that
[tex]m<1+m<2=180\°[/tex] -----> by supplementary angles
we have
[tex]m<1=156\°[/tex]
substitute
[tex]156\°+m<2=180\°[/tex]
[tex]m<2=180\°-156\°=24\°[/tex]
Part 3) If line a is parallel to line b
then
[tex]m<3=m<2[/tex] -----> by alternate interior angles
so
we have
[tex]m<2=24\°[/tex]
therefore
[tex]m<3=24\°[/tex]
Part 4) If line b is parallel to line c
then
[tex]m<5=m<4[/tex] -----> by corresponding angles
so
we have
[tex]m<4=156\°[/tex]
therefore
[tex]m<5=156\°[/tex]
Find the next three terms of the sequence.
–6, –24, –96, –384, . . .
Answers
You multiply by 4 each time
HOPE THIS HELP!
A grasshopper coved a distance of 5 yards in 9 equal hops. How many yards did the grasshopper travel on each hop.
Answers
So you would do 5 divided by 9, which is 0.555555555555556, rounded, it would be about 0.6 yards. Hope this helps.
To calculate how many yards the grasshopper traveled on each hop, we must divide the number of yards (5) by the number of hops (9):
5 ÷ 9 = 0.5556 (Repeating decimal)
Answer:
The grasshopper traveled about 0.6 yards on each hop.
a tyrannosaurus rex weighed about 1.4 tons more than one tenth the weight of a Patagotitan mayorum. About how much did the tyrannosaurus rex weigh?
A Patagonian mayorum was a tyrannosaur that weighed about 76 tons
Answers
You have two dinosaurs. Let's just label them as Dinasour A (the Tyrannosaurus Rex), and Dinosaur B (the Patagonian Mayorum)
Dinasoar A weighs in at 1.4 tons more than a TENTH of Dinasoar B's weight
We know that Dinosaur B weighs in at 76 tons.
A tenth means exactly what it sounds like, 10/100. If it helps, you can think of it in terms of money, where a single Dime is a TENTH of a Dollar, because it takes 10 total Dimes to make $1
So, to fine a tenth of anything, you have to divide it by 10!
76/10=7.6
7.6 is the tenth of the weight of Dino B. However, the question states that dino A weighs in at 1.4 tons MORE than a tenth, meaning addition.
So, 7.6+1.4=9
Dinosaur A, AKA the Tyrannosaurus Rex, weighs in at 9 Tons.
~Hope this helps!
The Tyrannosaurus rex weighed approximately 9 tons.
Explanation:To determine the weight of the Tyrannosaurus rex, we need to find one tenth the weight of Patagotitan mayorum, which is 76 tons. One tenth of 76 tons is 7.6 tons. We then add 1.4 tons to this, as the Tyrannosaurus rex weighs about 1.4 tons more than one tenth the weight of Patagotitan mayorum. Therefore, the weight of the Tyrannosaurus rex is approximately 9 tons.
What is the distance between points S and U?
Round to the nearest tenth of a unit.
3.3 units
6.4 units
8.1 units
12.0 units
Answers
sqrt(16 +49)
sqrt(65)
8.06
round to 8.1 units
The correct answer is C.
[tex] |SU| = 8.1units[/tex]
EXPLANATION
The given points are,
[tex]S(2,1) \: \: and \: \: U(6,8).[/tex]
We use the distance formula to determine the distance between the two points.
[tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} [/tex]
We substitute the points to obtain,
[tex] |SU| = \sqrt{(6- 2) ^{2} + (8 - 1) ^{2} } [/tex]
We simplify to obtain,
[tex] |SU| = \sqrt{(4) ^{2} + (7) ^{2} } [/tex]
We further simplify this to obtain,
[tex] |SU| = \sqrt{16 + 49} [/tex]
[tex] |SU| = \sqrt{65} [/tex]
This evaluates to,
[tex] |SU| = 8.062[/tex]
We round to the nearest tenth to get,
[tex] |SU| = 8.1units[/tex]
A right triangular prism is shown. Find (A) the total surface area and (B) the volume. You must show formulas and your work.
10m height
8m width
10.77m
Answers
We are going to use the rectangular prism of the image as a guide:
First of all, the AC segment is calculated using the Pythagoras' theorem:
[tex]AC= \sqrt{ AB^{2}+ BC^{2} } =\sqrt{ 10^{2}+ 8^{2} }=12,81 m[/tex]
(A) The surface area of a prism is the sum of the surface areas of each face.
For the 2 triangles ABC and DEF
[tex]A=2*(1/2*b*h)=2*(1/2*8m*10m)=80m[/tex]
For the ABEF Rectangle
[tex]A=w*l=10,77m*10m=107,7m^{2}[/tex]
For the ACDE Rectangle
[tex]A=w*l=10,77m*12,81m=137,96 m^{2}[/tex]
For the BCDF Rectangle
[tex]A=w*l=10,77m*8m=86,16 m^{2}[/tex]
To finish you need to sum up the areas of each face:
[tex]SA=2A_{ABC}+ A_{ABEF}+A_{ACDE}+A_{BCDF}= \\ 80 m^{2} +107,7m^{2} +137,96m^{2} +86,16m^{2} =411,82m^{2} [/tex]
(B) The volume of a prism is the product of the area of its base and the height of the prism. In this case, the base is a triangle so the formula and the calculations for the volume are as follows
[tex]V= \frac{1}{2} *w*h*l= \frac{1}{2}* 8m*10m*10,77m=430,8m^{3} [/tex]
Find the slope of a ski run that descends 15 feet for every horizontal change of 24 feet. *Make sure to look at the sign of the slope and include in your answer. Positive or negative? Please help me quick
Answers
slope means rises over run. and with the facts that we know, it gives us m=-15/24
Answer:
15/24 i think'
Step-by-step explanation:
What is the range of this dot plot? I'm stuck between the answers 8 and 9.
Answers
The range is the difference between these extremes.
.. 9 - 0 = 9
Picking a blue shirt from a drawer with 8 blue shirts and 2 white shirts.
Answers
You got ten shirts 8 are blue 2 are white.
So you have an 80% chance of grabbing blue and 20% of white.
And 8:2 ratio
The probability of picking a blue shirt from the drawer is 4/5 or 0.8
The probability of picking a blue shirt from a drawer with 8 blue shirts and 2 white shirts can be calculated as follows:
Probability of picking a blue shirt = Number of blue shirts / Total number of shirts
Probability of picking a blue shirt = 8 / (8 + 2)
Probability of picking a blue shirt = 8/10
Probability of picking a blue shirt = 4/5
Therefore, the probability of picking a blue shirt from the drawer is 4/5 or 0.8.
To learn more on probability click:
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How can you determine if a piece-wise relation is a function?
Answers
Imagine you are drawing lines parallel to the y axis, if any of your lines touches the graph twice, the graph does not represent a function. otherwise, it does.
Please help me with this compound interest.
Answers
6,300 x (1+0.06) ^3=
6300 x 1.191016 =
7503.40
The figure shows triangle ABC and a rotation of the triangle about the origin
a. How would you describe the rotation?
b. What are the coordinates of the image?
Answers
A' is (3,1), B' is (2,3) and C' is (-1, 4)
If 5 pounds of broccoli cost is $12 then how much will 7 pounds of broccoli cost?
Answers
7 pounds costs $16.4 I think
12 / 5 = 2.4
One pound of broccoli costs $2.40, SO. To find how much 7 pounds would cost we multiply 7 by 2.4.
7 x 2.4 = 16.8
So, 7 pounds of broccoli costs $16.80
Describe two ways that an exterior angle of a triangle is related to one or more of the interior angles
Answers
Evaluate m 0 - n 2 for m = 2 and n = -1.
-1
0
1
Answers
Answer:
the answer is -1
Step-by-step explanation:
Plies sambedy help problem 5.
Answers
23=30-g;6,7,8 what is the solution
Answers
30-7=23
7=g
Solve the equaton backwards to get the answer