Answer:
-40
Step-by-step explanation:
2x + 5y = 10
-4(2x + 5y) = -4 * 10
-4(2x + 5y) = -40
You need a piece of paper to measure 56.34 cm. If you tape two together that each measure 35.87, how much do you need to cut off
Answer:
you will need to cut off 15.4 cm
Step-by-step explanation:
35.87×2=71.74
71.74-56.34=15.4
What is 16+2 and 18-3 and 2*3?
Answer:
16+2=18
18-3=15
2*3=6
Step-by-step explanation:
a solid metal cone with radius of base 12 cm and height 24 cm is melted to form spherical solid balls of diameter 6 cm each. Find the number of the balls thus formed
Answer:
32 solid balls are formed.
Step-by-step explanation:
Let suppose that volume of the cone is equal to the total volume of balls, of which we derive the following formula:
[tex]\frac{1}{3}\cdot \pi\cdot R^{2}\cdot h = \frac{1}{6}\cdot \pi \cdot n \cdot D^{3}[/tex] (1)
Where:
[tex]R[/tex] - Radius of the base of cone, measured in centimeters.
[tex]h[/tex] - Height of cone, measured in centimeters.
[tex]D[/tex] - Diameter of sphere, measured in centimeters.
[tex]n[/tex] - Number of balls, no unit.
Then, we clear the number of balls:
[tex]2\cdot R^{2}\cdot h = n\cdot D^{3}[/tex]
[tex]n = \frac{2\cdot R^{2}\cdot h}{D^{3}}[/tex]
If we know that [tex]R = 12\,cm[/tex], [tex]h = 24\,cm[/tex] and [tex]D = 6\,cm[/tex], then the number of balls is:
[tex]n = \frac{2\cdot (12\,cm)^{2}\cdot (24\,cm)}{(6\,cm)^{3}}[/tex]
[tex]n = 32[/tex]
32 solid balls are formed.
Willa bought 5 tops that cost $72 after she applied a $20-off coupon. The tops all cost the same amount. Which equation can be used to find the cost in dollars of each top?
Answer:
14.40 dollars
Step-by-step explanation:
72 divided in 5
Help pls (pls dont write absolute nonsense on here pls i really need help)
What is the 11th term of the sequence: 7, 13, 19, 25, ....
pattern is adding 6
so the 11th would be 67
I have one word to say. MATH.
Una cámara de refrigeración industrial tiene una temperatura de 2°C disminuye su temperatura a razón de 4°C por minuto ¿cuantos minutos le toma llegar a -18°C?
Answer:
Tarda 5 minutos
Step-by-step explanation:
En un minuto baja a -2°C, en dos minutos baja a -6°C, en tres minutos baja a -10°C, en cuatro minutos baja a -14°C, en cinco minutos baja a -18°C
ESPERO TE AYUDE ;)
Matthew went to the store to buy some of the ingredients for Indian pudding for his mother. He bought cornmeal ($1.74), cinnamon ($2.10), milk ($2.95), and eggs ($1.52). How much did Matthew spend? How much change would Matthew receive if he gives the cashier a $20 bill?
Answer:
8.04 and he would have 11.96 left over
Step-by-step explanation:
You and your friend are standing back-to-back. Your friend runs 16 feet forward and then 12 feet right. At the same time, you run 12 feet forward and then 9 feet right. You stop and throw a baseball to your friend, who catches it. How far did you throw the baseball?
Answer:
9 1/3 feet (I think)
Step-by-step explanation:
I imagined it as a grid.
Your friend moves to point (16,12)
You move to point (-12,9)
Then you set up your equation and solve.
[tex]\frac{16 + 12}{12-9}[/tex]
[tex]\frac{28}{3}[/tex]
9 1/3
Hope this helps :)
Substitute the values of x and y into the expression -3x^2+ 2y^2 + 5xy - 2y + 5x^2 - 3y^2. Match that values to one of the numbers.
1. x = 0.5, y = -1/10
2. x = -1, y = -3
3. x = ¾ , y = ⅖
4. x = 0, y = 2.5
5. x = √2, y = √2
6. x = 2, y = -1
A. -11.25
B. 0.44
C. 14
D. -1
E. 9.17
Answer:
c
Step-by-step explanation:
try calculator and see which fits
Orders of operation Practice
(5^2+)x2-12
If tax
The ticket price of an item is $14.99.
is 4.5%, what is your total?
Answer: 15.66
Step-by-step explanation:
In parallelogram ABCD, AB = (2x + 15) and 4C = x. Find x.
O55
O60
O15
O45
Answer:
x = 55
Step-by-step explanation:
ABCD is a paralellogram, m∠ABC = 2x + 15, m∠BCD = x
m∠ABC + m∠BCD = 180° (same side interior angles)
2x + 15 + x = 180
3x + 15 = 180 -15
3x = 165
x = 55
A $830 iphone has a 20%
discount. The tax rate is 7.5%.
What is the final price of the
phone including tax?
Answer:
$614.2
Step-by-step explanation:
Um I just calculated it. I'm in Algebra 2 so it's light work
Answer 2,3,and 4
I really need help
thx
Answer:
where is the thing to answer
Answer:
Ok im going on your page to see the question
oli , Sam and Tim share £360 in the ratio 3:2:1 . what's sa
ms share
Answer:
it on web I had this question once
Step-by-step explanation:
put it in web and you be find
The amount that Sam get (the share of Sam) is £120
What is ratio of two quantities?Suppose that we've got two quantities with measurements as 'a' and 'b'
Then, their ratio(ratio of a to b) a:b or [tex]\dfrac{a}{b}[/tex]
We usually cancel out the common factors from both the numerator and the denominator of the fraction we obtained. Numerator is the upper quantity in the fraction and denominator is the lower quantity in the fraction).
Suppose that we've got a = 6, and b= 4, then:
[tex]a:b = 6:2 = \dfrac{6}{2} = \dfrac{2 \times 3}{2 \times 1} = \dfrac{3}{1} = 3\\or\\a : b = 3 : 1 = 3/1 = 3[/tex]
Remember that the ratio should always be taken of quantities with same unit of measurement. Also, ratio is a unitless(no units) quantity.
Same thing happens for 3 quantities and more such quantities.
So if its given that Oli, Sam, and Tim's share (total £360) are in the ratio 3:2:1, that means some common factor (lets call it 'x') must be cancelled off as 3+2+1 don't equate to 360.
So, we have:
Oli's share = 3xSam's share = 2xTim's share = 1x = xTheir total evaluates to 360 (in euros).
(we don't write symbols like of currency generally, and understand it from context. Also, sign of multiplication is often hidden if there are non numeric symbols and numbers being multiplied are written together)
Thus, we get:
[tex]3x + 2x + x = 360\\(3+2+1)x = 360\\6x = 360\\\\\text{Dividing both the sides by 6}\\\\\dfrac{6x}{6} = \dfrac{360}{6}\\\\x = 60[/tex]
Thus, we get:
Oli's share = 3x = 3×(60) = £180Sam's share = 2x = 2×(60) = £120Tim's share = 1x = x = £60Thus, the amount that Sam get (the share of Sam) is £120
Learn more about ratio here:
brainly.com/question/186659
4. You buy a video game and pay for it with a $50 bil. Write an expression that can be used to find out how much change you shoud receive.
Answer:
[tex]\boxed{\textsf {\textbf{The amount returned by the shopkeeper is \$ 50 - x .}}}[/tex]
Step-by-step explanation:
Given that I buy a video game and pay $ 50 to the shopkeeper . And we need to find the expression how much change should I receive .
So , let us take that the video game costs x . There can be two cases .
★ Case 1 :-
When the cost of the product is same as the amount given . When the cost of the video game is $50 then the shopkeeper will give us no change .
[tex]\boxed{\red{\sf Returned\ change = \$ 0 }}[/tex]
[tex]\rule{200}2[/tex]
★ Case 2 :-
When the cost of the video game is less than $50 then the shopkeeper will return us some change that is equal to the difference if the amount given to shopkeeper and the cost of the video game .
If the cost of the video game is x , then the amount given to us by the the shopkeeper will be ,
[tex]\boxed{\red{\sf Returned\ change = \$ 50 - x }}[/tex]
PLS HELP IM DESPERATE I GIVE 10 POINTS EACH PERSON
A double box-and-whisker plot represents the stock prices of Company A and Company B over a 30-day period. Both companies have a minimum price of $3 and a maximum price of $10. The median price for Company A is $6 and the median price for Company B is $9. Which company is more likely to have a symmetric box-and-whisker plot? Explain.
Answer:
company a
Step-by-step explanation:
It is probably company a because if you make a box and whisker plot in your head the median of 6 would be more in between 3 and 10 than 9. If the median were 9 it would probably be skewed. If 6 is near the middle the box and whisker plot would look more symmetric
pls tell me how to do it
Answer:
1) 35
2) 125
Step-by-step explanation:
1)
angle adc = x
x+ 90 + 20 = 180 (triangke sum property)\
x = 180 - 110 = 70
angle bdc = 70/ 2 = 35 ( the median cuts the angle into 2)
2) cbd = x = 125
x + c + bdc = 180
x + 35 + 20 = 180
x = 180 - 55 = 125
I hope im right!!!
What is 26% of $3,000
In the triangle XYZ, the measure of ∠XYZ is 104°, and the measure of ∠YZX is 19°. What is the measure of ∠ZXY?
Answer:
∠ZXY = 57°
Step-by-step explanation:
According to angle sum property of a triangle, sum of all the angles of the triangle is [tex]180[/tex]°.
In ΔXYZ,
∠XYZ + ∠YZX + ∠ZXY = 180°
Put ∠XYZ = 104°, ∠YZX = 19°
104° + 19° + ∠ZXY = 180°
123° + ∠ZXY = 180°
∠ZXY = 180° - 123°
∠ZXY = 57°
Therefore,
∠ZXY = 57°
Answer:
57
Step-by-step explanation:
I need help Please!!!!
Answer:
48 inches
Step-by-step explanation:
[8/3](18) =48
Look at the pic try to show ur work for those equations the best u can I’ll give you the brainly thing who ever does the best
what is a axe on a graph?
Answer:
Plural of Axis. Pronounced "ak-seez". Axes often means the "x" and "y" lines that cross at right angles to make a graph. See: Axis (graph) Cartesian Coordinates.
Step-by-step explanation:
11 pointsI just need help PLEASE HELP ME IF YOU DO ILL THANK YOU AND GIVE POINTS
Answer: 1/5
Step-by-step explanation:
So stats. The using the results im guessing there are 20 cards since we aren't told otherwise. since we drew diamond roughly 4 out of the 20 cards we have a 20% or 1/5 chance of drawing diamond randomly
Answer: 1/5
Step-by-step explanation:
Add all 8+3+5+4=20
4/20
simplify by 2
4/2= 2 20/2= 10 = 2/10
simplify by 2 again
2/2= 1 10/2=5
=1/5
The length of a rectangular prism is three times its width. The height is two times the length. If
its width is 2x^3 units, what is the volume of the prism?
Answer:
Step-by-step explanation:
Length = 3(2x^3) = 6x^3
Height = 2(6x^3) = 12x^3
Volume = (6x^3)(12x^3)(2x^3)=144x^9
I NEED HELP I ONLY HAVE 20 MINUTES
Answer:
hello I don't understand forgiveness helped me in my task
Step-by-step explanation:
You roll a 20-sided die and a 6-sided die. What is the probability that the sum of the dice is less than 5?
Answer:
8 in 26 i think.
Step-by-step explanation:
im pretty sure if it is supposed to be less than five then you need to add the number of digits and those are the odds. pretty sure.
5%
Did the quiz and got it right, explanation given:
Determine the size of the sample space. Look for how many of those outcomes result in the dice adding up to either a 4, 3, or 2. Then use the addition rule to get the probability.
The radius of a circular clock is 10.5 inches. Which measrement is closest to the circumference of the clock in inches
Answer:
65.9734457254 or 65.97
Step-by-step explanation:
c= pi x diameter
c= pi x (10.5 x 2)
c= pi x 21
= 65.9734457254
Answer:
66 in approx
Step-by-step explanation:
Given data
Radius= 10.5 inches
The circumference is given as
C= 2πr
Substitute
C=2*3.142*10.5
C=65.982
Hence the Circumference is 66 in approx