help maths equation class 8
Step-by-step explanation:
question 2
let the number be x
2 ( x + 5 ) = 5x - 14
2x + 10 = 5x - 14
2x - 5x = -14 - 10
-3x = -24
dividing both sides by -3
x = 8
to verify, 8 + 5 is 13 times 2 which 26..
so 5 times 8 is 40 minus 14 is 26
Solve for x in 12x + 4y = 16
Answer:
y = -3x+ 4
one equation two unknows can not solve uniquely
4y = -12x + 16
y = -3x+ 4
is the solution set
Step-by-step explanation:
Answer:
[tex]x = \frac{ 16 - 4y}{12}[/tex]
Step-by-step explanation:
12x + 4y = 16
12x + 4y - 4y = 16 - 4y
12x = 16 - 4y
[tex]\frac{12x}{12} = \frac{ 16 - 4y}{12}[/tex]
[tex]x = \frac{ 16 - 4y}{12}[/tex]
Can someone please answer this
Answer:
[tex] {7}^{3} (as \: a \: single \: power \: of \: 7)[/tex]Step-by-step explanation:
Given
[tex] {7}^{4} \div 7[/tex]
Since,
[tex] {a}^{x} \div {a}^{y} = {a}^{x - y} [/tex]
Hence,
[tex] = {7}^{4 - 3} [/tex]
[tex] = {7}^{3} (ans)(as \: a \: single \: power \: of \: 7)[/tex]
Aml needs to divide these base ten blocks into 4 equal groups, 11 Describe a model that would show how many are in each group. The model will contain ten and ones in each group. pls help im crying
Answer:
The model will contain 19 ten and 4Step-by-step explanation:
11 ÷ 4 = 2 + 2 = 4
1 + 4 + 4 = 9
19 ÷ 4 = 4
Help what’s X? Need answer asap
Answer:
x = 10
Step-by-step explanation:
The secant- secant angle 3x is half the difference of the intercepted arcs, that is
3x = [tex]\frac{1}{2}[/tex] (4x + 50 - 30 )
3x = [tex]\frac{1}{2}[/tex] (4x + 20) = 2x + 10 ( subtract 2x from both sides )
x = 10
the product of two rational numbers is -16/9. If one of the numbers is -4/3 find the other
Answer:
4/3
Step-by-step explanation:
-(16/9) = (p/q) (-4/3)
(-16/9)*(-3/4) = (p/q)
4/3 = p/q
Answer:
Step-by-step explanation:
Let the number be x
[tex]x *\frac{-4}{3}=\frac{-16}{9}\\\\x=\frac{-16}{9}*\frac{3}{-4}\\\\x=\frac{4}{3}[/tex]
Given m|n, find the value of x.
+
>m
(7X+6)
(9X-24)
Answer:
[tex]Given,[/tex]
∠CBA=(7x+6)°
∠EBD=(9x-24)°
[tex]Now,[/tex]
∠CBA=∠EBD (vertically opposite angles)
[tex]7x+6=9x-24[/tex][tex]9x-7x=6+24[/tex][tex]2x=30[/tex][tex]x=30/2[/tex][tex]x=15[/tex]----------------------
hope it helps...
have a great day!!
What is the answer to this question
Which measurements could not represent the side lengths of a
right triangle?
a) 9cm, 12cm, 15cm
b) 12cm, 35cm, 37 am
c) 4cm, 8cm, 14cm
d) 5cm, 12cm, 13cm
Plz no links
Answer:
answer is option c
4+8 is less than 14
12<14
the sum of two sides of a triangle should be greater than the other side
Which data set has high consistency and low variability? Why?
Suhas puts 12 crayons in a box. Two of the crayons are orange. Suhas selects one crayon from the box without
looking. Find the probability that it is NOT orange.
Answer:
The probability that it isn't orange is 5/6
Step-by-step explanation:
There are twelve crayons and two are orange so there is ten that aren't orange. Probability being 10/12. We can now simplify to 5/6. There you go easy as.
Many regards, Abdelmumen Nakoa.
Can someone please help me with this, it’s urgent!!
Answer:
Step-by-step explanation:
angle 4 is congruent to angle 4 because they are alternate interior angles.
angle 5 is congruent to angle 3 because they are alternate interior angles.
angle 1+angle 2+angle 3 is equal to (=) angle 1+angle 2+angle 3
angle 1+angle 2+angle 3=180 degree(being sum of interior angles of a trianngle)
The volume of a spherical ball is 4500 cubic centimeters. Find the radius of the ball
The radius is_____
centimeters.
Answer:
[tex]r^{3}=4050[/tex]
r = ∛4050
Step-by-step explanation:
[tex]V=\frac{4}{3} \pi r^{3}[/tex]
[tex]5400=\frac{4}{3} \pi r^{3}[/tex]
[tex]r^{3}=3(\frac{5400}{4} )[/tex]
[tex]r^{3}=3(1350 )[/tex]
[tex]r^{3}=4050[/tex]
What is the median in the box plot?
Answer:
76
Step-by-step explanation:
The median line in the middle of the box is at 76 (the number line is by 2's)
==================================================
Explanation:
The median is the vertical line inside the boxplot. This vertical line is at 76.
The median does not have to be at the exact midpoint of the box, as it could be much closer to one of the edges. All that matters is the median is between Q1 and Q3
Q1 = left edge of the box
Q3 = right edge of the box
The min and max are the tips of the left and right whiskers respectively. This is when there are no outlier island points to either side.
how do i solve this?
Answer:
x= 15
Step-by-step explanation:
Help me please
Express the number 0.307 x 10-Pin
scientific notation.
the answer is in the picture
Geometry math show work thanks
Part (a)
The angles would stay the same. This is because similar figures keep the same shape, but the size will shrink or grow.
A real world application is to simply move your head closer to the page and the figure will appear to get larger. The angles themselves stay the same but the side lengths will get larger.
====================================================
Part (b)
While the angles stay the same under a dilation operation, the side lengths do not. As the instructions state: "The side lengths are 3 times longer" (paraphrased).
So we multiply each side length in the diagram by 3
DE = 3*JK = 3*4.5 = 13.5EF = 3*KL = 3*3 = 9FG = 3*LM = 3*2 = 6GD = 3*MJ = 3*2.5 = 7.5Refer to the diagram below. I've used the resize feature to enlarge the image to make figure DEFG
Can someone please help me out with my homework
ASAP I WILL GIVE OUT BRAINLY
Answer:x
=4
permiter=6
area=24
Step-by-step explanation:
Answer:
x = 8, area = 364 km^2, perimeter = 80 km
Step-by-step explanation:
to start, we have to recognize that opposite sides of a rectangle are congruent.
therefore ➪
2x + 10 = 4x - 6
2x + 16 = 4x
16 = 2x
x = 8
now just plug that in and you'll find ➪
length = 26km
width = 14km
area = l * w
area = 26 * 14
area = 364 km^2
perimeter = 2(l + w)
perimeter = 2(14+26)
perimeter = 80 km
Please, math is gonna be the death of me
Answer:
Step-by-step explanation:
A reindeer runs 20 1/2 miles in 3 hours. At that rate, how many miles does it run in 1 hour?
Answer:
e
Step-by-step explanation:
e
Pls, help on this one! Today, I have a test and I forgot to do this part!
Answer:
196608
Step-by-step explanation:
Using Substitution 4x-3y=-10 and x=1/4y-1
Answer:
Then the solution is (-1/4, 3)
Step-by-step explanation:
Start by eliminating the fractional coefficient 1/4: multiply all 3 terms in the second equation by 4. This results in equation (b), below:
4x - 3y = -10 (a)
4x = y -4 (b)
Substitute y - 4 for 4x in equation (a):
y - 4 - 3y = -10
Combining like terms, we get -2y = -10 + 4, or -2y = -6, or y = 3.
Since x = (1/4)y - 1, if y = 3, then x = (1/4)(3) - 1, or x = 3/4 - 1, or x = -1/4
Then the solution is (-1/4, 3)
Is this right? If not let me know and explain how if u can.
(No link <3)
Answer:
9/35
Step-by-step explanation:
There are a total of 15 bulbs to choose from randomly. First a new bulb is chosen. Chance is 9/15 because 9 out of 15 are new.
Then there are only 14 bulbs left. Then a used bulb is chosen. Chance is 6/14 since 6 out of remaining 14 are used.
Total chance for this to happen is 9/15 * 6/14 = 54/210 = 9/35.
HELP PLEASE !!!!!!!!
Answer:
1. spends $80
2. Each garlic bread costs the same
3. Orders a pizza for 25.50 and two garlic breads
Step-by-step explanation:
The price of an item has been reduced by $2.29. The new sale price is $47.25. What was the original price?
Answer:
49.54
Step-by-step explanation:
Take the new price and add the amount that it was reduced by to get the original amount
47.25+2.29
49.54
That was the original price
Write an expression (Simplified) for the perimeter of the given figure.
PLS ANSWER ASAP
Answer:
p = 6x + 10
Step-by-step explanation:
p = 2(l + w)
p = 2(6 + (3x - 1))
Simplify terms inside parenthesis
p = 2(3x + 5)
Distribute
p = 6x + 10
What is the volume of a cylinder with a radius of 10 meters and a height of 4 meters?
Answer:
The volume of the cylinder is about 1256.6 cubic meters.
Step-by-step explanation:
The volume of a cylinder is given by the formula:
[tex]\displaystyle V=\pi r^2h[/tex]
Where r is the radius and h is the height.
Our radius is 10 meters and our height is four meters. Substitute:
[tex]\displaystyle V=\pi(10)^2(4)[/tex]
Evaluate:
[tex]V=400\pi \text{ m}^3\approx 1256.6\text{ m}^3[/tex]
Thus, the volume of the cylinder is about 1256.6 cubic meters.
What is the domain of the function f(x)=-2x(x-1)(x-2)
Answer:
all real values
Step-by-step explanation:
there is no value for x, where the operations in f(x) would run into an undefined or outright invalid situation. whatever x we can think of, f(x) will calculate a valid y.
For every 7 girls on a softball team there are 6 boys. Is this a ratio or rate?
Answer:
ratio
Step-by-step explanation:
i just know
Answer:
A Ratio
Step-by-step explanation:
its a ratio
your welcome ☺
Jerry's Fizzy Cola: 4.1 through 4.3, inclusive
Answer:
D
Step-by-step explanation:
Frizzy cola is 4.1 through 4.3 inclusive
This means that the pH Range of frizzy cola is between 4.1 to 4.3(including 4.3)
If the pH value is represented as h :
The the lower bound will be 4. 1
Upper bound will be 4.3
This means :
4.1 less than or equal to h and h is less than or equal to 4.3
4.1 ≤ h ≤ 4.3
Since, 7 is neutral, values below 7 are acidic while above 7 are alkaline ;
The range is below 7, hence, frizzy cola is acidic.
4.1 ≤ h ≤ 4.3 ; acidic