Answer:
-12 is rational & an interger
Step-by-step explanation:
negative number are intergers
rational number can be made into fractions:
hence -12/1 is a fraction its rational
I will mark brainlist and 5 stars. Help please :))
Answer:
the answer to that question is D
Answer:
its C
Step-by-step explanation:
A machine produces 264 bolts in 42 minutes. At the same rate, how many minutes would it take to produce 308 bolts?
minutes
Answer:
49.6 minutes to create 308 bolts
Step-by-step explanation:
hope this helps :)
8 minus a number by 3
Answer:
Im guessing 4
Step-by-step explanation:
or if the number is 2 the answer is 6
Explain how to determine if you have a direct variation or proportional relationship
given a graph
Answer:
straight line that passes through the origin
Step-by-step explanation:
Two variables are said to have a direct variation or proportional relationship if it can be represented by y = kx, where k is a constant.
Comparing this with the equation of a straight line y = mx + b, where m is the slope of the line and b is the y intercept (value of y when x = 0), We can tell if the say that the graph of a direct variation or proportional relationship is a straight line with no y intercept (b = 0, that is it passes through the origin).
Which equation can be used to solve for x in the following diagram?
Answer:
A
Step-by-step explanation:
the answer is option A as
6x + 12x = 90
so 6x + 12x + 90 = 90 + 90 + 180
Hello I hope you are doing well . i have a question lease could you answer it with the explication thanks:
thanks
Answer:
The equations are;
4(2x + 5) = 3(2x + 8)
x = 2
Perimeter of each shape is 36
Step-by-step explanation:
Mathematically;
The perimeter of a square is 4L
while the perimeter of an equilateral triangle is 3L
where L represents the lengths of the sides
Mathematically, from what we have in the question, since the perimeter are equal;
4(2x + 5) = 3(2x + 8)
8x + 20 = 6x + 24
8x-6x = 24-20
2x = 4
x = 4/2
x = 2
The side of the square will measure;
2(2) + 5 = 9
Its perimeter is 4(9) = 36
The side of the triangle will measure
2(2) + 8 = 12
Its perimeter will be 3(12) = 36
Donna is planning to take a trip to Spain that will cost $2,927. She has already saved $1,852. To earn the rest of the money, Donna will mow lawns for $25 per lawn. Which equation can be used to find x, the number of lawns Donna will need to mow in order to have enough money for her trip? F 1,852x + 25 = 2,927 G 25(x + 1,852) = 2,927 H x(1,852 + 25) = 2,927 J 25x + 1,852 = 2,927
Answer:
the answer would be the one with 25x+1,852=2,972
Step-by-step explanation:
please mark brainliest
Answer:
J
Step-by-step explanation:
Theres no explanation. I just did it in my head and none of the other answers made sense so its gotta be J :')
A jar contains 3 blue marbles, 7 red marbles, and 5 green marbles. you pick one without looking. whats the probability that the marble will not be red?
Probability of not picking up a red marble = 8/15
No of red marbles = 7
No of green marbles = 5
No of blue marbles = 3
Total sample space = 3+7+5 = 15 marbles
Probability of picking out blue marble = 3/15
Probability of picking out red marbles = 7/15
Probability of picking out green marbles = 5/15
Probability of not picking up a red marble = 1 - 7/15 = 8/15
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Under certain conditions the pressure of a gas varies directly with the temperature. When the pressure is 900 psi, the temperature is 350. What is the pressure when the temperature is 70?
Answer:
180psi
Step-by-step explanation:
Step one:
given data
P1= 900 psi
T1= 350°C
P2=?
T2=70°C
Required
The final pressure P2
Gay-Lussac's Law: The Pressure Temperature Law. This law states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. With an increase in temperature, the pressure will go up
Applying the expression
P1/T1= P2/T2
substitute:
900/350= P2/70
2.57=P2/70
cross multiply
P2= 2.57*70
P2=180psi
X/[] is a fraction if you add 1 to the numerator and subtract 1 from the denominator the fraction will become 4/5
The fraction is [tex]\frac{3}{5}[/tex]
Let's take the fraction as [tex]\frac{a}{b}[/tex]
According to the first statement,
If we add 1 to the numerator and subtract 1 from the denominator a fraction reduces to 1.
[tex]\frac{a + 1}{b - 1}[/tex] = 1
a + 1 = b -1
a + 2 = b
b = a + 2........(1)
According to the second statement
If we only add 1 to the denominators, it becomes 1/2.
[tex]\frac{a}{b+1}[/tex] = 1/2
2a = b + 1
b = 2z -1 .........(2)
Equating both the equation (1) and (2)
2a - 1 = a + 2
2a - a = 2 + 1
a = 3
Now substitute the value of a in equation (1)
b = 3 + 2
= 5
Therefore the fraction is [tex]\frac{a}{b}[/tex] = [tex]\frac{3}{5}[/tex]
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Please can someone help me with this maths question ♀️:
Solve 5x+2=20
Answer:
x = 18/5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define equation
5x + 2 = 20
Step 2: Solve for x
Subtract 2 on both sides: 5x = 18Divide 5 on both sides: x = 18/5Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 5(18/5) + 2 = 20Multiply: 18 + 2 = 20Add: 20 = 20Here we see that 20 does indeed equal 20.
∴ x = 18/5 is a solution to the equation.
What is the value of the following expressions?
Answer:
9 is the answer.
Step-by-step explanation:
( -89)/(-9)
When (-) I'd divided by (-) it changes into (+)
Soo, the answer is 9
Multiple Choice.
What is the solution to the square root of -75 to the nearest integer?
A 9
bB. 8
C.-8
D. -9
MAXIMUM POINTS
Answer:
I belive it is 'A' 9
Step-by-step explanation:
because the square root is 8.66025404 so that rounded to the nearest integer would be 9
I’ll mark you brainlist
Answer:
[tex]2^{21}[/tex]
Step-by-step explanation:
[tex](a^{m} )^{n}[/tex] = [tex]a^{mn}[/tex]
[tex](2^{7})^{3}[/tex] = [tex]2^{21}[/tex]
Answer: 128^3 or 2097152
Step-by-step explanation: maybe mark me brainliest? your choice! have a good day
PLEASE HELP MEE EEEEEE
Answer:
7x - 8y
Step-by-step explanation:
Lol is this delta math
Can anyone help me ill give brainliest
Answer:
Answer the first choice.
Step-by-step explanation:
Given
Points (-2,6) and (0,2)
y2 = 6
y1 = 2
x2 = - 2
x1 =0
m = (y2 - y1)/(x2 -x1)
Solution
m = (6 - 2)/(-2 - 0)
m = 4 / - 2 <<<< ===== Answer..
m = - 2
Remark
If you know what the formula to use is, it always helps to write down your givens. The solution is much easier.
5x-3>7 or -2x+4>6 inequality solution
Answer:
its 83
Step-by-step explanation:
A truck is 250 inches long. A car is 35% shorter than the truck. How long is the car
Answer:
87.5 inches long
Step-by-step explanation:
250 x 0.35 = 87.5
Answer:262.5
Step-by-step explanation:
all i did was just subtract 35% from 250 and it is 262.5in
hope this helps
You are converting the numbers shown below into scientific notation. Which of the options will be a number times 10−6
10
−
6
? Select all that apply.
A) 0.00578
A
)
0.00578
B) 0.00000445
B
)
0.00000445
C) 0.000002243
C
)
0.000002243
D) 0.000091
Answer:
a c and d
Step-by-step explanation:
Is 3/6 14/28 16/32 17/34 a proportional relationship
Answer:
Not proportional
Step-by-step explanation:
3/6=1/3
14/28=1/2
16/32=1/3
17/34
Find the area of the figure. Write the answer is radical form
[tex]Answer:\ S=96\sqrt[4]{x^9}[/tex]
Step-by-step explanation:
[tex]\displaystyle\\(4x)^\frac{3}{2}=\\\\ (2^2x)^\frac{3}{2} =\\\(2^2)^\frac{3}{2} x^\frac{3}{2} =\\\\2^\frac{2*3}{2} x^\frac{3}{2} \\\\2^3x^\frac{3}{2}=\\\\8x^\frac{3}{2}[/tex]
Thus,
[tex]S=8x^\frac{3}{2} *12x^\frac{3}{4}\\\\ S=8*12x^{\frac{3}{2} +\frac{3}{4}} \\\\S=96x^\frac{3*2+3}{4} \\\\S=96x^\frac{6+3}{4} \\\\S=96x^\frac{9}{4} \\\\S=96\sqrt[4]{x^9}[/tex]
313
Which of these is a unit of measure for the mass of a bag of apples?
А
kilogram
B
kilometer
с
cubic inches
D
square inches
Answer:
A
Step-by-step explanation:
I hope this is correct and have a great day
please help !! 20 point question!! simple math problem. WILL MARK BRAINLIEST
Answer:
1
Step-by-step explanation:
x^5 when x = -1 will be -1 because -1^5 = -1
-1 * -9 will equal 9
1/3^2 = 1/9
1/9*9 = 1
Answer:1
Step-by-step explanation:
help me pleaseeee asap
Answer:
5089.4cm³ (rounded to 1 d.p.)
Step-by-step explanation:
Volume of cylinder = [tex]\pi[/tex] × r² × h
Volume of cylinder = [tex]\pi[/tex] × 9² × 20
= 1620[tex]\pi[/tex]
= 5089.4cm³ (rounded to 1 d.p.)
Write a unit rate for the ratio.
45 miles on 3 gallons of gasoline
a 20 miles per gallon
b 15 miles per gallon
C 35 miles per gallon
d
45 miles per gallon
How do I solve |y-9| = 6?
25 POINTS!
Answer:
3
Step-by-step explanation:
3-9=-6 but absolute is 6
How many moles of mercury, Hg is in a sample of 505 grams?
Answer: 2.52Hg
Step-by-step explanation:
First and foremost, we should realize that:
1 moles Mercury = 200.59 gram
Therefore, the number of moles of mercury, Hg is in a sample of 505 grams would be calculated as:
= 505/200.59
= 2.52
Find the value of x plz.
The two latches make known the fact that this is an isosceles triangle. Here, x is the base angle. There are two base angles in isosceles triangles. Base angles have the same measure. This explains the reason for 2x in the equation below.
Here is the set up:
x + x + 32 = 180
2x + 32 = 180
2x = 180 - 32
2x = 148
x = 148/2
x = 74
The value of x is 74 degrees.
carlon plans to evaporate a number of gallons of water from 90 gallons of a 15% salt solution to make a 25% salt solution. which equation can he use to find x, the number of gallons that should be evaporated? original (gallons) removed (gallons) new (gallons) amount of salt 13.5 0 amount of solution 90 x startfraction 13.5 over 90 minus x endfraction
The value of X for carlon evaporate is 36.
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.
A linear equation is an algebraic equation of the form y=mx+b involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept. Occasionally, the above is called a "linear equation of two variables," where y and x are the variables.
Given that
Total amount of solution = 90
total amount of salt = 15 % of 90
= [tex]90 \times \frac{15}{100}[/tex]
= 13.5
Now removed X from the solution
Then, remaining solution is 90 - X
Percentage of salt in the remaining solution [tex]= \frac{salt}{remaining solution}[/tex]
Given that , % of salt in the remaining solution is equal to 25% then, Percentage of salt in the remaining solution
⇒ [tex]\frac{salt}{remaining solution}[/tex] = 25%
⇒ [tex]\frac{13.5}{90 - X} = \frac{25}{100}[/tex]
⇒1350 = 2250 - 25 x
⇒ 25 x = 2250 - 1350
⇒ 25 x = 900
⇒ x = [tex]\frac{900}{25}[/tex]
⇒ x =36
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max picks two different cards without replacement from a standard $52$-card deck. what is the probability that the cards are of different suits?
The probability that cards are from different suits is [tex]\frac{39}{51}[/tex]
Probability of an event E represented by P(E) can be defined as (The number of favorable outcomes )/(Total number of outcomes).
There are 4 suits hearts, diamonds, club and spade in a standard deck of 52 cards.
Each of them has 13 cards each .
So when we pick first card from a single suit
we can pick it in 13 ways , now 12 cards are left.
We can pick the 2nd card from the same suit in 12 different ways .
So to pick 2 cards from a single suit we have 13x12 ways.
to pick 2 card from 4 suits = 4x13x12=624 ways
Total ways of choosing 2 cards from the pack of 52 cards is 52 X 51 =2652
probability that the cards are of same suits=[tex]\frac{624}{2652} =\frac{12}{51}[/tex]
probability that the cards are of different suits=[tex]1-\frac{12}{51} =\frac{39}{51}[/tex]
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