Answer:
V =2860 in ^3
Step-by-step explanation:
The volume of a rectangular prism is given by
V = l*w*h where l is the length, w is the width and h is the height.
V = 20 * 11 * 13
V =2860 in ^3
Decreasing 3/4 times a number by 18 is equal to increasing 1/2 times the number by 5 give an equation and solution to the situation.
Please help me out on this problem thank you!!!!!!
Answer:
solved below.Explanation:
[tex]\sf \frac{3}{4} x-18 = \frac{1}{2} x +5[/tex]collect variables:
[tex]\sf \frac{3}{4} x - \frac{1}{2} x = + \ 5 + 18[/tex]simplify:
[tex]\sf \frac{1}{4} x = 23[/tex]final answer:
[tex]\sf x = 92[/tex]Evaluate the expression 6(x) when x equals 3.
Pls... I need help.
Answer:
18
Step-by-step explanation:
substitute x = 3 into the expression
6x = 6(3) = 6 × 3 = 18
Round 385,497 to the nearest thousand.
Answer:
385,000
Step-by-step explanation:
Answer the following
Answer:
14
sorry if i need any.
Step-by-step explanation:
9-8=1 + 13 = 14
Pls help me and thanks rounding
Answer:
Step-by-step explanation:
1399 rounds to 1400 so A is not the answer
1449 rounds to 1400 so B is not the answer
1589 rounds to 1600 so D is not the answer
The hundreds place is second from the left. Third from the left determines what happens to second from the left. 5 and over round up. Less than 5 just use the first 2 digits left and 2 zeros.
The answer is C
1457 rounds to 1500
1547 rounds to 1500
simplify 2 2/5 x 1 2/5
A. 8/25
B. 84/25
C. 2 4/25
D. 3 9/25
please hurry due in 11 min!!!
Answer:
84/25
Step-by-step explanation:
Add 2/10 +36/100 =
Write each sum as fraction with a denominator of 100 and as a decimal
Answer:
56/100 or 0.56
Step-by-step explanation:
you first need the dinominators to be the same so to figure that at you can do 100 divided by 10 which is 10. so to make the doniomators even you need to multipy the 2/10 by 10. so 2x10=20 and 10x10=100 so that makes the fraction 20/100. now you have 20/100 + 36/100 =? which makes it a lot easier. so now all you do is add ONLY THE NUMERATOR so you do 20+36 which is 56 and you keep the 100 and that 56/100.
To make it into a decimal, this one is easy because the denominater is 100 so you just take 56.0 and move the decimal two place values so its 0.56. :)
Finding Circumference The radius is cm. v cm OZ The circumference in terms of ais Using 3.14 for A, the approximate circumference of the circle is cm. d=2cm
Answer:7picm Circumference = pi x d Diameter = 7 C = pi x 7 C = 7pi cm.
Step-by-step explanation:
The circumference of the circle with diameter 2 cm is 6.28 cm.
What is a circle?A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.
Given that a circle has a diameter of 2 cm we need to find its circumference,
The circumference of a circle is given by, π × diameter
Therefore, the circumference of the circle with diameter 2 cm =
= π × diameter
= π × 2
= 3.14 × 2
= 6.28 cm
Hence, the circumference of the circle with diameter 2 cm is 6.28 cm
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What values of x make 3 - 4x > 17 true?
Answer: x < -3.5
Step-by-step explanation:
Subtract 3 from both sides and we get
-4x > 14
We divide -4 on both sides, but be careful because we have to flip the sign since it's a negative number.
x < -3.5
Write and solve a word problem that requires multiplying two mixed numbers.
Answer:
Jack ate two and a half pieces of a pie. Amy ate one and three fourth pieces of a pie. How much pie did they eat altogether?
Step-by-step explanation:
Jack ate 2 1/2 pie
Amy ate 1 3/4 pie
2 1/2 + 1 3/4 = 4 1/4
They ate four and one-fourth pieces of pie altogether.
What is the missing numbers in the synthetic division problem below?
Answer:
A. 9
Explanation:
2×4=8 and 8+1=9 so that's it.
4
3
С
2
1
In the similarity
transformation of AABC
to ADEF, AABC was dilated by
a scale factor of [?], reflected
across the [ ], and moved
through the translation [ ].
B.
A
-7
-6
-5
-4
-2
-1 0
1
2
3
+
E
D
-2
-3
F
A. 2
B. 1/2
C. 3
D. 1/3
Answer: A
Step-by-step explanation:
Since DE=4 and AB=2, we know the scale factor of the dilation was 4/2 = 2.
Which is a better deal? Three packs of gum for 5 dollars or 9 packs of gum for 14 dollars? HOW DO YOU KNOW?
Answer:
9 for 14 is slightly less expensive, but for convenience 3 for 5 is better
Step-by-step explanation:
5/3=1.(6)
14/9=1.(5)
Patrick collected 192 seashells at the beach.He made five necklaces with an equal number of shells on each necklace.He used the leftover sheets to decorate a magnet.How many shells are on the magnet
Answer:
I'm going to put the most shells possible on the necklaces this would be 38, 38x5=190, meaning that we have a remainder of 2.
2 shells would be on the magnet
Which measurements of two similar triangles are the same?
Step-by-step explanation:
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .
Answer:
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion. In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.
Step-by-step explanation:
please mark brainliest
3.
What is the value of the expression below when a = 3 and b = 5?
8a^2– 6b + 10
Answer: 52
Step-by-step explanation:
We can plug in the values for a and b.
= 8*3^2 - 6*5 + 10
= 72 - 30 + 10
= 42 + 10
= 52
Answer:
52
Step-by-step explanation:
Start by substituting the given values into the expression:
[tex]8a^2-6b+10\\8(3^2)-6(5)+10\\\text{Solve the expression}\\8(9)-30+10\\72-30+10\\42+10\\52[/tex]
Remember Order of Operations:
Parentheses
Exponents
Multiplication/Division (Whichever comes first)
Addition/Subtraction (Whichever comes first)
what is the Estimate 26% of 84.
Answer: 26% of 84 is 21.84
Step-by-step explanation:
0.26 * 84 = 21.84
Answer:
26%
of
84
=
21
Step-by-step explanation:
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What is the surface area?
32 cm
11 cm
15 cm
Answer:
(rectangular prism) Opposite sides are equal;
Area of bottom base:-
11 x 15 = 165
Above base, (165 x 2) = 330
Area of front:-
15 x 32 = 480
Area of back, (480 x 2) = 960
Area of left side:-
11 x 32 = 352
Area of right side, (352 x 2 ) = 704
Add the sums of all the areas;
330 + 960 + 704 = 1,994 square cm
Small batteries are sold in packs of 8. Mr. Winn bought 4 packs and Mrs. Winn bought 6 packs. Which expressions show how many batteries the Winn family purchased? Select all that apply.
a. 8(4) + 8(6)
b. 8(4) ⋅ 6
c. 6(4 + 8)
d. 8(4) + 6(4)
e. 8(4 + 6)
1. what is the y-intercept of this line?
2. what is the slope of this line?
3. what is the equation for this line?
Step-by-step explanation:
1. The y-intercept is the value for y when x = 0.
When x = 0, y equals 7.
Represented as:
(0, 7)
2. How to find the Slope?
Find 2 points on the graph then use the slope formula.
[tex] \frac{y2}{x2} - \frac{y1}{x1} = m[/tex]
m = slope
2 points:
(0, 7)
(2, 3)
Substitute the points into the formula:
[tex] \frac{3}{2} - \frac{7}{0} = m[/tex]
Subtract:
[tex] \frac{ - 4}{2} = m[/tex]
[tex] \frac{ - 4}{2} = m[/tex]Simplify:
[tex] \frac{ - 4 \div 2}{2 \div 2} = - \frac{2}{1} [/tex]
The slope is -2.
Forming an equation:
Use the slope-intercept format.
[tex]y = mx + b[/tex]
m = slope
b = y-intercept
Substitute 7 for b, and -2 for m.
[tex]y = - 2x + 7[/tex]
The Grand Prismatic Spring in Yellowstone discharges 8,400 gallons of water at a rate of 560 gallons a minute. Using m for minutes, write an equation that represents this situation.
The equation that represents this situation is 560m = 8400
Equation
An equation is an expression that shows the relationship between two or more variables and numbers.
Let m represent the number of minutes taken to discharge the water. Hence this can be represented by:
560m = 8400
The equation that represents this situation is 560m = 8400
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The sum of two numbers is 16. One number is 2 less than the other. Find the numbers
Answer:
9+7=16
Step-by-step explanation:
Only 12 people can ride a trolley at one time. This is 20% of the people waiting to ride. How many people are waiting to ride?
Answer:
2 people are waiting if you want a whole number
As an apprentice to a chef you are preparing a recipe that says to bake the dish for 3/4 of a hour how many minutes should you bake the dish?
3x - 2 + x + 8 = -(9x + 7
=
- 2(9x + 7 - x + 5)
1 (8x + 12)
4x + 6 =
2
4x + 6 = 4x + 6
4x + 6 = 4x - 6 = 4x + 6 - 4x - 6
0=0
Is this correct?
Answer:
no
Step-by-step explanation:
3x−2+x+8=−9x−7
4x+6=−9x−7
4x+6+9x=−7
13x+6=−7
13x=−13
x=−1
Solve this, please ...
Answer: x = 6
Step-by-step explanation:
The midsegment is half of the side it's parallel to.
Therefore 2*(3x-1) = 34
3x-1 = 17
3x = 18
x = 6
What is the exact volume of the cone
Answer:
V = [tex]\frac{400}{3}[/tex][tex]\pi[/tex]
Step-by-step explanation:
Volume of a cone is:
[tex]V = \pi r^{2} \frac{h}{3}[/tex]
Substitute values given:
[tex]V = \pi (5^{2} )(\frac{16}{3})[/tex]
[tex]V = \pi (25)(\frac{16}{3} )[/tex]
V = [tex]\pi \frac{400}{3}[/tex]
V = [tex]\frac{400}{3}[/tex][tex]\pi[/tex]
An open box with a square base is constructed so that it has a volume of 64in^3. The base needs to be made out of a material that costs twice as much as the sides. What are the dimensions of the box, what are the dimensions of the box x and y (x being the width and depth of the square dimensions, and y being the height of the box) which will minimize the cost of the box?
The volume of a box is the amount of space in the box
The dimensions that minimize the cost of the box is 4 in by 4 in by 4 in
How to determine the dimensions that minimize the costThe dimensions of the box are:
Width = x
Depth = y
So, the volume (V) is:
[tex]V = x^2y[/tex]
The volume is given as 64 cubic inches.
So, we have:
[tex]x^2y = 64[/tex]
Make y the subject
[tex]y = \frac{64}{x^2}[/tex]
The surface area of the box is calculated as:
[tex]A =x^2 + 4xy[/tex]
The cost is:
[tex]C = 2x^2 + 4xy[/tex] --- the base is twice as expensive as the sides
Substitute [tex]y = \frac{64}{x^2}[/tex]
[tex]C = 2x^2 + 4x * \frac{64}{x^2}[/tex]
[tex]C =2x^2 + \frac{256}{x}[/tex]
Differentiate
[tex]C' =4x - \frac{256}{x^2}[/tex]
Set to 0
[tex]4x - \frac{256}{x^2} = 0[/tex]
Multiply through by x^2
[tex]4x^3 - 256= 0[/tex]
Divide through by 4
[tex]x^3 - 64= 0[/tex]
Add 64 to both sides
[tex]x^3 = 64[/tex]
Take the cube roots of both sides
[tex]x = 4[/tex]
Recall that:
[tex]y = \frac{64}{x^2}[/tex]
So, we have:
[tex]y = \frac{64}{4^2}[/tex]
[tex]y = 4[/tex]
Hence, the dimensions that minimize the cost of the box is 4 in by 4 in by 4 in
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Ms. Ashley planned to stay at a hotel that charges $88 per night for a room and $20 per night in fees and taxes. She used this expression to calculate the total cost of staying in the hotel for n nights. 88n 20n
Step-by-step explanation:
Since 88 is for one night and 20 per night in fees and taxes.
Step 1 : Calculate for $88
[tex] \frac{88n}{88} \\ [/tex]make N the subject of formula
[tex]n = \frac{88}{88} \\ [/tex]
N= 1
Step 2: Calculate for $20
[tex] \frac{20n}{20} \\ [/tex]
make N the subject of formula
[tex]n = \frac{20}{20} [/tex]
N = 1
Can someone please help me with this the last two tutors got it wrong
Triangular prism: 2 bases and 5 faces
Pentagonal prism: 2 bases and 7 faces
Answer:
I hope this is right
Step-by-step explanation:
A triangular prism has two triangular bases and five faces.
A pentagonal prism has two pentagonal bases and seven faces.
I really hope this is right :)
