Answer:
2100
Step-by-step explanation:
71 ->70
28 ->30
70 * 30 = 2100
A variable needs to be eliminated to solve the system of equations below. Choose the
correct first step.
- 4x – 2y = 18
4x – 4y = -36
O Subtract to eliminate x.
O Subtract to eliminate y.
O Add to eliminate x.
O Add to eliminate y.
Step-by-step explanation:
-4x - 2y = 18
+ (4x - 4y = -36)
=> -6y = -18, y = 3
As we added the equations together, we have eliminated x and found y.
Hence the correct answer is "Add to eliminate x".
25 - so
Is the following number rational or irrational?
Answer:
25 is a rational number
Step-by-step explanation:
This is because, a rational number needs to be in p/q form, where q ≠ 0
This is possible for 25, 25 in p/q form =
25/1
If my answer helped, kindly makr me as the brainliest!!
Thank You!!
can some one help with this
Answer:
156 masks
Step-by-step explanation:
Factor the following expression 2x^2 - 11x+12
Answer:
(2x-3)(x-4)
Step-by-step explanation:
HELP ASAP NEEDS TO BE DONE TODAY.
Which expression is equivalent to 27 + 45?
A. 8(3+6)
B. 8(19+ 37
C. 9(3+5)
D. 9(18 + 36)
Answer:
A
Step-by-step explanation:
if you did 6+3=9
8x(9)=72
"27+45=72"
Answer:
C
Step-by-step explanation:
27 + 45 = 72
9(3 + 5)
9 x 3 = 27
9 x 5 = 45
27 + 45
Please answer this as soon as possible!! ASAP Simplify to a single power of 2: 2^7/2^5
Answer:
i got 4
Step-by-step explanation:
Answer:
2²
Step-by-step explanation:
[tex]\frac{a^{m}}{a^{n}}=a^{m-n} , m>n\\\\\\\frac{2^{7}}{2^{5}}=2^{7-5}=2^{2}[/tex]
How many ways are there to
adjust two quantities so that they are in a
given proportional relationship?
Answer:
2 or 3
Step-by-step explanation:
List 4 equivalent to 3/7
Step-by-step explanation:
[tex]\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{2}{2}=\dfrac{6}{14}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{3}{3}=\dfrac{9}{21}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{4}{4}=\dfrac{12}{28}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{5}{5}=\dfrac{15}{35}\\\vdots\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{10}{10}=\dfrac{30}{70}\\\vdots\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{100}{100}=\dfrac{700}{300}\\\vdots[/tex]
How do you convert r=8 cos(θ) into cartesian form?
HELP I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!!! THIS IS TIME PLZ HELP!!!
(look at the screenshot)
Ruby is visiting San Francisco. From her hotel she walks 2 blocks east and 4 blocks north to a coffee shop. Then she walks 6 blocks west and 5 blocks north to a museum. Where is the museum in relation to her hotel? SHOW YOUR WORK!!!
The museum is __ blocks(s) __ (east or west) and __ block(s) (north or south) of her hotel.
Answer:
2 blocks west and 5 steps north
Step-by-step explanation:
NEED HELP DESPERATE. A recipe requires 1 cup of milk for every 4 cups of flour. Choose a linear equation that describes the proportional relationship.
A.
B.
C.
D.
Answer:
A
Step-by-step explanation:
It goes up by 4 for each cup of flour and over 1 for every cup of milk. Please Brainliest
HELP! 10 Point for helping!
Anwer now!
FAST!
Answer:
(8,3)
Step-by-step explanation:
ana runs a merchandiser store. she wants to buy 500 notebooks for her store. she will get 300 notebooks for $2500. the next 200 notebooks are for $4 per notebook. if the total cost for notebook is $3300 and 12%discount is given then the total cost for notebooks is
Answer:
5000
Step-by-step explanation:
i worked the problem out and got 100%
Would 7x = 28 represent any geometric proof?
Answer: yes because the x could be 4 then 7 times 4 is 28 which would make this math sentence true
Step-by-step explanation:
Answer: Yes
Step-by-step explanation:
kaley read 12 1/4 pages in 1/3 hours. How many can she read in 1 hour?
Answer:
15 1/4 pages im thinking please correct me if im wrong
Step-by-step explanation:
Sally has three tiles each tile has a number on it sally puts the three tiles down to make a number each number is made with all three tiles how many different numbers can sally make
Answer:
6
Step-by-step explanation:
123
132
213
231
312
321
which totals to 6 overall combinations
A scuba diver is swimming 15 feet below the water’s surface.
The diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth?
Answer: -11.8 = 11.8 feet below the water's surface
Step-by-step explanation:
-15 + (0.5)(4) + 3(0.4)
-15 + 2 + 1.2
-11.8
Need help ASAP I’m trying to understand
Step-by-step explanation:
5a+4a=180
a=20
5a=X
X=5×20
=100°
Answer:
100 degrees
Step-by-step explanation:
The opposite angle will always be the same. since the opposite is 5a, then x = 5a. x is 5a, and 9a is 180 degrees so x=180(5/9), which is equal to 100 degrees.
five and six eights + four and 4 fiths please answer ill give 10 points
Answer:
29/5
Step-by-step explanation:
Answer:
10 11/20
Step-by-step explanation:
ten and eleven twentieths
The graph of relation v is shown. Which of the following graphs represents the relation and its inverse?
Step-by-step explanation:
The relation and its inverse (if it exists) must be symmetrical about the line y = x.
Hence the answer is the 2nd from the top.
Answer:
Second option
Step-by-step explanation:
one quarter of a number is 6.
work out one-third of the number.
tyyy
Answer:
8
Step-by-step explanation:
6 / 1/4 = 24, So to find 1/3 we do 24 / 3 which is 8
:D
Answer:
8
Step-by-step explanation:
An industrial engineer must estimate the cost of building a storage tank. The tank requires 208 sq ft of material at $9.29 per square foot. It also requires 4.5 hours of labor at $26.40 per hour plus 1.6 hours of labor at $19.60 per hour. Find the total cost of the tank.
Answer:
The total cost of making the tank equals $2,082.48
Step-by-step explanation:
Giving the following information:
The tank requires 208 sq ft of material at $9.29 per square foot.
It also requires 4.5 hours of labor at $26.40 per hour plus 1.6 hours of labor at $19.60 per hour.
To calculate the total cost, we need to multiply the unitary variable cost by the total amounts:
Direct material= 9.29*208= $1,932.32
Direct labor= 4.5*26.4 + 1.6*19.6= $150.16
The total cost of making the tank equals $2,082.48
Withby tuns 3/4miles in 1/6 hours at that rate how far can she run in one hour?
Answer:
4.5 miles ibelieve
Step-by-step explanation:
3/4 × 6/6 is 4.5 miles
21. Given that f(x)= x^3– x² + 5x and g(x)= x^3 +5x^2 –2 determine
(g-f)(x)
Answer:
(g - f)(x) = 6x² - 5x - 2
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
f(x) = x³ - x² + 5x
g(x) = x³ + 5x² - 2
(g - f)(x) is g(x) - f(x)
Step 2: Evaluate
Substitute: (g - f)(x) = x³ + 5x² - 2 - (x³ - x² + 5x)Distribute -1: (g - f)(x) = x³ + 5x² - 2 - x³ + x² - 5xCombine like terms: (g - f)(x) = 6x² - 5x - 2Write the word sentence as an equation. Then solve.
The product of 15 and a number x is −75.
Equation:
Solution: x=
Answer:
Equation: 15x= -75
x= -5
Step-by-step explanation:
15x= -75
Divide both sides by 15 to isolate the variable x
-75÷15= -5
Check
15× -5= -75
Hope this helps!
look at the picture that's the problem I need help with
Answer:
I think its A
Step-by-step explanation:
Write 8/5 as a mixed number.
Answer: 1 3/5
Step-by-step explanation:
5/5 = 1
There is a remainder of 3/5.
Combine these two pieces to get the whole, 1 3/5.
The slope of the line represented by y = 5x is
Answer:
The slope of the line represented by y = 5x is 5
Step-by-step explanation:
The form of the linear function is y = m x + b, where
m is the slope of the line that represents the equationb is the y-intercept (the value of y at x = 0)To find the slope of a line from its equation compare the equation with the form of the linear function, then find the coefficient of x which is the slope of the line
∵ The equation of the line is y = 5x
→ Compare it with the form of the equation above
∵ The coefficient of x = 5
∴ m = 5
∴ The slope of the line represented by y = 5x is 5
Find all real numbers x that satisfy the equation (x-4)(x-8) = 12.
Answer:
x=10
Step-by-step explanation:
(10-4)(10-8) = 12
(6)(2) =12
12 = 12
The required real number that satisfies the given expression is x=10, x= 2.
Given that,
To determined the real numbers x that satisfy the equation (x - 4)(x - 8) = 12
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
(x - 4)(x - 8) = 12
x²-12x+32=12
x²-12x+20=0
(x - 10)(x -2) = 0
Thus, the required real number that satisfies the given expression is x=10, x= 2.
Learn more about simplification here:
https://brainly.com/question/12501526
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hola me gusta la matematicas
Answer:
that is spanish for "hello, i like mathimatics"
Step-by-step explanation:
it is
Answer: Do you want a translation? If you do, it says, "Hello, I like Mathematics."
Step-by-step explanation: I know spanish.