0.7 is a rational number.
Explanation:Because it is a terminating decimal expansion.
Answer:
0.7 is a rational number- experssed as a fraction, it is equal to 7/10
2xy when x = 5 and y = -3
Answer:
the answer is -30
Step-by-step explanation:
2xy=2*5*-3
= -30
The value of the expression 2xy will be -30.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given expression is 2xy and x = 5 y = -3. To calculate the value put the value of x and y in the expression.
2xy=2 x 5 x -3
2xy= - 30
Therefore, the value of the expression 2xy will be -30.
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7¹² ÷ 7⁴ is equal to ___. A. 7³ B. 7⁸ C. 3 D. 1³
Answer:
B. 7⁸
Step-by-step explanation:
The four factors of 7 in the denominator cancel four of the twelve factors of 7 in the numerator, leaving 8. When a product consists of 8 factors of 7, we write it as ...
7⁸
Answer:
B
Step-by-step explanation:
7^12 / 7^4 = 7^8
[tex](\sqrt{2}-3i)(\sqrt{2}-5i)[/tex] plz simplify
Answer:
-5i
Step-by-step explanation:
How do you solve this problem? 7/10 x 1 1/3
Answer:
77/30
Step-by-step explanation:
7/10 x 11/3 = 7x11 = 77 and 10x3 = 30
the answer is 77/30
Solve with Foil, and show work (4x+3) (5x-4)
Answer:
[tex]20x^{2} + 12x -28[/tex]
Step-by-step explanation:
(4x+3) (5x-4)
= [tex]20x^{2} -16+15x-12[/tex]
(multiply 4x with (5x-4) and multiply 3 with (5x-4) )
= [tex]20x^{2} + 12x -28[/tex]
(rearrange the numbers and subtract 12 from -16)
Suppose that 14 inches of wire costs 70 cents. At the same rate, how many inches of wire can be bought for 35 cents?
Answer:
7
Step-by-step explanation:
35x2=70 14/2=7
1. Which of the following is an equation for the
inverse of the function f(x)
3x + 1 ?
Answer:
f^-1(x)=x/3-1/3
Step-by-step explanation:
If mZDEF = (7x + 4)", mZDEG = (5x + 1)', and mZGEF = 23", find each
measure.
E
F
D
Angle DEF -
What is x?
Answer:
Yoy answer is x=10
Step-by-step explanation:
We already know what ∠GEF is 23°
so you would have to create an equation like this [tex]23+(5x+1)=7x+4[/tex]
you add 23+1=24 and get [tex]5x+24=7x+4[/tex] subtract 5x on both sides
[tex]24=2x+4[/tex] subtract 4 on both sides
[tex]20=2x[/tex] divide 2 x=10
∠DEF=7(10)=70+4=74
∠DEG=5(10)=50+1=51
To check 51+23=74
Steven wants to buy a $590 bicycle. Steven has no money saved, but will be able to deposit $50 into a savings account when he receives his paycheck each Friday. However, before Steven can buy the bike, he must give his sister $60 that he owes her. For how many weeks will Steven need to deposit money into his savings account before he can pay back his sister and buy the bike?
Answer:
13 weeks
Step-by-step explanation:
Add 590 and 60 together and then divide by 50 and you'll get 13
An investor purchased a house 8 years ago for $48,000 This year it was appraised at $73,500 Complete parts (a) through (d) below. (a) A linear equation V=mt+b,0
Answer:
b = $48000, m = $3187.5 / year
Step-by-step explanation:
The equation of a linear function is given as y = mx + b, where m is the rate of change, b is the value of y when x = 0, y = dependent variable and x = dependent variable.
Given that V = mt + b:
b = initial price of the house at 0 years = $48000
V = mt + 48000, At 8 years the house is appraised at $73,500
73500 = 8m + 48000
8m = 73500 - 48000
8m = 25500
m = 3187.5
What is the value of n in the equation
A truck can be rented from company A for $130 a day plus $0.20 per mile. Company B charges $50 a day plus $0.60 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for company A and company B
Answer:
200 miles
Step-by-step explanation:
Company A
Daily charge = $130Per mile = $0.20x miles per day = 130 + 0.2xCompany B
Daily charge = $50Per mile = $0.60x miles per day = 50 + 0.6xAssume x miles that makes same amount for both options, then:
130 + 0.2x = 50 + 0.6x0.6x - 0.2x = 130 - 500.4x = 80x = 80/0.4x = 200 milesa1= -26. d= 200
a(n)= ?
Answer:
a(n) = -26+(200n-200)
Step-by-step explanation:
The formula for arithmetic series is "Tn=a+(n-1)d
Then,the elements in the formula are substituted with numbers.i.e Tn= -26+(n-1)200.
therefore,Tn= -26+(200n-200)...
Nb: This answer is Subjected to review, thanks.
Please help! I dont understand this, I will give 15 points!
Answer:
Step-by-step explanation:
common denominator is the multiplication of the two denominator or the least common multiple of the two
common denominator 24 10 12
13/24 +7/12 ☑ ☑
7/6+(-5/12) ☑ ☑
-3/4+(-2/3) ☑ ☑
5-7/10 ☑ ☑
1/8 - 5/3 ☑ ☑
3/2 - 4/5 ☑ ☑
Read the headline below and complete the instruction that follows. “Sloppy Play Sends Tigers to Final Loss” Determine which word indicates bias. Sloppy Tigers Final Loss
Answer:
Sloppy
_________
Answer:
sloppy
Step-by-step explanation:
it basically give a description that not everyone would think about it. if i described texas A&M as Trash not all people think that therefore making the statement an opinion and bias.
2. Lenny is making pasta for dinner. The recipe calls for 3 cups of sauce to serve 15
people. If Lenny serves 60 people, how many cups of sauce does he need?
What is the solution set for −4x+10≥5x+55?
Answer:
Step-by-step explanation:
-4x + 10 ≥ 5x + 55
-9x + 10 ≥ 55
-9x ≥ 45
x ≤ -5
A basketball player averages 12.5 points per game. There are 24 games in a season. At this rate, how many points would the player score in an entire season?
Answer:
300
Step-by-step explanation:
hope this helps
Find the distance between the points (0,2)and (-5,-9)The answer must be a whole number or a fully simplified radical expression do not round up
Answer:
The answer is
[tex]\sqrt{146} \: \: \: units[/tex]Step-by-step explanation:
The distance between two points can be found by using the formula
[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(0,2)and (-5,-9)
The distance is
[tex]d = \sqrt{( {0 + 5})^{2} + ({2 + 9})^{2} } \\ = \sqrt{ {5}^{2} + {11}^{2} } \\ = \sqrt{25 + 121} \\ = \sqrt{146} [/tex]
We have the final answer as
[tex] \sqrt{146} \: \: \: units[/tex]
Hope this helps you
Answer:
ok. i have solved. u can have a look .
Jason paid $9 for 20 erasers. If the price of each
eraser was decreased by $0.15, how many
erasers could he have bought for the same
amount of money at the new price?
erasers
I need help with this geometryyyy workkk
Answer:
Perpendicular
Step-by-step explanation:
For this problem, it is important to note two things. One line is completely vertical, and the other line is completely horizontal.
The line y=9 is completely horizontal at the y-value at 9. The line x = 2 is completely vertical at the x-value at 2.
Hence, these two lines would be perpendicular.
Cheers.
Answer:
Perpendicular.
Step-by-step explanation:
Since it makes a huge cross +, which we want it to be, we need the lines to intercept and it makes a right angle. That means it is perpendicular.
Sal, John and Desmond have formed a partnership. The total investment was $750,000.
Sal owns 40% and John owns 25% of the partnership. How much did Desmond invest?
Plz answer this as well. Thankyou.
Answer:
21
Step-by-step explanation:
(-5-2)(-3)
= (-7)(-3)
=21
Jackson was selling cups of lemonade. On Saturday, he sold a total of 14 cups. On Sunday he sold cups at a steady rate of 3 cups per hour. Set up and solve an equation to find how many hours, h, it took Jackson to sell 47 cups (including those from Saturday).
Answer:
(47-14) h ÷ 3 =11
Step-by-step explanation:
47-14=33
33 divided by 3 is 11
Jackson takes 11 hours to sell 47 cups.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
Let's say the number of hours that Jackson sold his cups on Sunday.
Now,
Saturday cups + Sunday cups = Total cups.
14 + 3x = 47
3x = 33
x = 11
Hence "Jackson takes 11 hours to sell 47 cups".
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i need a step by step explanation of how to solve this
Answer: x = 6
Step-by-step explanation:
Subtract 8 on both sides. The new equation should be -2x = -3x + 6.Now, add 3x on both sides. It should give you x = 6.The area, A, of a square with a side of length x is given by A = x^2? Use this relationship to verify that doubling the length of the side of a square floor increases the area of
the floor by a factor of 2^2
Answer:
Hi
Step-by-step explanation:
Please help !!!!!!Asap!!
about what is 4/5+8/9
Answer:
1.688 the 8 will keep repeating
Step-by-step explanation:
Answer:
76/45 or 1.69 (rounded)
Step-by-step explanation:
First, you want to find the LCM (Lowest Common Multiple) of the two fractions.
Here, the LCM would be 45 (5*9).
So the fraction would become:
[tex]\frac{4*9}{45} + \frac{8*5}{45} \\\\\frac{36+40}{45} \\\\\frac{76}{45}[/tex]
If n represents a number then write an expression for two less than one fourth of n
Answer: [tex]\frac{1}{4}n-2[/tex]
This is the same as [tex]\frac{n}{4} - 2[/tex] and it is also equivalent to [tex]0.25n-2[/tex]
=====================================================
Explanation:
n is some placeholder for a number
one fourth of that number is [tex]\frac{1}{4}n[/tex] which is the same as [tex]\frac{n}{4}[/tex] or [tex]0.25n[/tex] since 1/4 = 0.25
From here, we subtract off 2 to get [tex]\frac{1}{4}n-2[/tex] as one possible final answer.
Jane has bought 10 pounds of dog food. She feeds her dog 2/5 pounds for each meal. For how many meals will the food last? Write your answer in simplest form.
Answer:
25 meals
Step-by-step explanation:
All you have to do is divide 10 ÷ 2/5 and you'll get 25 :)