Answer:
c
Step-by-step explanation:
What is the sum of 4 + (-6)?
Answer:
-2
Step-by-step explanation:
solve for r
negative 13 equals r over 9 plus eight
Answer:
r = - 189
Step-by-step explanation:
Given
- 13 = [tex]\frac{r}{9}[/tex] + 8 ( subtract 8 from both sides )
- 21 = [tex]\frac{r}{9}[/tex] ( multiply both sides by 9 )
- 189 = r
Answer: r= -189
Step-by-step explanation:
there is a number such that four times the number plus 3 is equal to 19. Find the number
The unknown number will be 4 for the given expression.
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 that there is a number such that four times the number plus 3 is equal to 19.
The number will be calculated by writing the mathematical expression below assuming the unknown number is x.
4x + 3 = 19
4x = 19 - 3
4x = 16
x = 16 / 4
x = 4
Therefore, the unknown number will be 4 for the given expression.
To know more about an expression follow
https://brainly.com/question/723406
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F A taxicab company charges $2.80 plus $0.40 per mile. Carmen paid a fare of $8.80. Enter and solve an equation to find the number of miles she traveled. Use m as your variable.
Answer:
15 miles
Step-by-step explanation:
8.80-2.80=6
6/0.40=15 miles
m = miles traveled.
$2.80 + $0.40m = $8.80
Subtract $2.80 from both sides.
$0.40m = $6.00
Divide both sides by $0.40
m = 15
Carmen traveled a total of 15 miles.
what is -5 + -66 +(92) =
Answer:
21
Step-by-step explanation:
i did it on a calculator
hope this helps
Answer:
21
Step-by-step explanation:
Can i be brainliest
Write 4.06 x 10^-4 in standard form
Answer:
0.000406x
Step-by-step explanation:
Lynn is making custom bricks. She combines 39 pounds of water and 48 pounds of brick dust in a mixing bucket. She spills 13 pounds of the mixture while stirring the contents. The mixture is then poured into small dirt holes to make bricks. Each brick requires 7 pounds of mixture, and the leftover mixture is washed out of the mixing bucket.
What is the greatest number of bricks Lynn can make?
___ bricks
How many pounds of mixture will be washed out of the bucket if Lynn makes the greatest number of bricks?
___ pounds
Answer:
A. 10 bricks
B. 4 pounds
Step-by-step explanation:
Water = 39 pounds
brick dust = 48 pounds
Total mixture = water + brick dust
= 39 + 48
= 87 pounds
She spills 13 pounds of the mixture while stirring
Remaining mixture = Total mixture - Spillage
= 87 pounds - 13 pounds
= 74 pounds
The mixture is then poured into small dirt holes to make bricks. Each brick requires 7 pounds of mixture
Number of bricks made = Remaining mixture / pounds per brick
= 74 pounds / 7 pounds
= 10 bricks remaining 4 pounds of the mixture
A. What is the greatest number of bricks Lynn can make?
10 bricks
B. How many pounds of mixture will be washed out of the bucket if Lynn makes the greatest number of bricks?
4 pounds
x+y=3
y=x-5
what is the solution to the system of equations?
Answer:(4,-1)
Step-by-step explanation:
Answer:
1,4
Step-by-step explanation:
A square has an area of 121 in^2 what is the length of the sides
Answer:
11in
Step-by-step explanation:
[tex]\sqrt[]{121} =11[/tex] Then you add the units.
find the value of m!!!
Answer:
[tex]m=158[/tex]
Step-by-step explanation:
Angles on a straight line add up to 180 degrees.
Hence,
[tex](m-29)+51=180[/tex]
Remove brackets:
[tex]m-29+51=180[/tex]
[tex]m+22=180[/tex]
Subtract 22 from both sides:
[tex]m+22-22=180-22[/tex]
[tex]m=158[/tex]
Answer:
[tex]\displaystyle 158 = m[/tex]
Step-by-step explanation:
Both angles form a linear pair, making them supplementary angles. This means you set both expressions equivalent to one hundred eighty degrees:
[tex]\displaystyle 180° = 51° + [m - 29]° \hookrightarrow 180° = [m + 22]° \\ \\ \boxed{158 = m}[/tex]
I am joyous to assist you at any time.
Find f(−3) for f(x) = −2x + 5
Answer:
Step-by-step explanation:
f(-3) = -2(-3) + 5 = 6 + 5 =11
How far from the line 3x+2y=5 is the point of intersection of x+y=5 and x–y=3?
Answer:
(9sqrt13)/13
Step-by-step explanation:
A farmer performs an experiment to find the amount of fertilizer needed to increase crop yields. She uses different
amounts of fertilizer, measured in pounds per acre (Ib/acre). She then records the yields, in bushels per acre (bu/acre).
Her results are shown in the table and graphed on the scatter plot.
Which equation best models the farmer’s data?
•A, y = 0.37x + 31
•B, y = 32(1.006)^x
•C, y = -0.009x^2 + 2.13x - 43
•D, y = -0.009x^2 + 2.13x + 43
Answer:
C.
Step-by-step explanation:
Determine the intercepts HELP PLEASE EMERGENCY
The telephone company offers two billing plans for local calls. Plan 1 charges $38 per month for unlimited calls and Plan 2 charges $18 per month plus $0.04 per call.
The question is incomplete:
The telephone company offers two billing plans for local calls. Plan 1 charges $38 per month for unlimited calls and Plan 2 charges $18 per month plus $0.04 per call.
Use an inequality to find the number of monthly calls for which plan 1 is more economical than plan 2.
Answer:
Plan 1 is more economical than plan 2 when you make more than 500 monthly calls.
Step-by-step explanation:
Plan 1 costs $38 per month for unlimited calls and plan 2 costs $18 per month plus $0.04 per call which is: 18+0.04x and you can infer that plan 1 would be cheaper when you have to pay more than $38 using plan 2 and you can express it with the inequality:
18+0.04x>38, where x is the amount of monthly calls
Now, you can solve for x:
0.04x>20
x>20/0.04
x>500
According to this, plan 1 is more economical than plan 2 when you make more than 500 monthly calls.
when two or more plane shapes from another shape the shape formed is called
Answer:
burgr
Step-by-step explanation:
burger buns
Echo123 don't delete this
write a p if the sum is positive and a n if the sum is negative
1. (+6) + (-5) =
2. (+6) + (-9 =
3. (-6) + (-4) =
4. (+6) + (-2) =
what is each sum
1. (-7) + (+1) + (+2) =
2. (-2) + (-4) + (+3) =
3. (+5) + (+3) + (-1) + (-4) =
4. (-4) + (+3) + (-2) + (-6) =
Answer:
[see below]
Step-by-step explanation:
For Part 1:(+6) + (-5) = 6 - 5 = 1 (P)
(+6) + (-9) = 6 - 9 = -3 (N)
(-6) + (-4) = -6 - 4 = -10 (N)
(+6) + (-2) = 6 - 2 = 4 (P)
Part 2:(-7) + (+1) + (+2) = -7 + 1 + 2 = -4
(-2) + (-4) + (+3) = -2 - 4 + 3 = -3
(+5) + (+3) + (-1) + (-4) = 5 + 3 - 1 - 4 = 3
(-4) + (+3) + (-2) + (-6) = -4 + 3 -2 - 6 = -9
Hope this helps.
Which property of real numbers is shown below?
-6 + 6 = 0
Answer:
equality
Step-by-step explanation:
Find the slope of the line passing through the points
(8, 2) and (10,2)
Answer:
Step-by-step explanation:
(2-2)/(10-8)= 0/2 = 0 is the slope
y - 2 = 0(x - 8)
y - 2 = 0
y = 2
need help immedaitly
Answer:
A=10053.1
Step-by-step explanation:
can someone help me with factoring by grouping
please show step by step
problem: x^2+3x-10
Factor : x^2+3x-10
Answer = (x - 2)(x + 5)
Explanation:
Y = x^2 + 3x - 10.
Find 2 numbers knowing sum (3) and product (-10).
Factor pairs of (-10) -> (-1, 10)(-2, 5). This sum is 3 = b. The 2 numbers are: -2 and 5.
y = (x - 2)(x + 5).
Solve for fff.
-f+2+4f=8-3f−f+2+4f=8−3fminus, f, plus, 2, plus, 4, f, equals, 8, minus, 3, f
f =
Answer:
f=1
Step-by-step explanation:
is it true or false that you can compare irrational numbers using rational approximation?
Answer:
The same is true for comparing irrational and rational numbers. By finding a rational approximation of the irrational numbers, we can compare values such as and . For these numbers we may have to go to a three decimal places for our approximation and the use of a calculator would make sense.
Step-by-step explanation:
hope this helps!!!!!!!
A teacher has 96 pencils to give to her students. If they came in boxes of 6, how many boxes of pencils does she have?
Answer: She had 16 boxes of pencils.
Step-by-step explanation: Divide 96 by 6 to get 16.
Answer:
16
Step-by-step explanation:
96\6=16
Students collected $441 for a donation camp. Each student have as many dollars as there were students. How many students are there
Answer:
There are 21 students.
Step-by-step explanation:
If there are 21 students, and each of them had $21 then this would equal a total of $441 because 21 multiplied by 21 equals 441.
Hope this helps,
Trey
Find three consecutive odd integers where the sum of the two largest is seven less than three times the smallest.
Answer:
13, 15, 17Step-by-step explanation:
x - an integer then 2x + 1 is an odd number (the smallest one)
consecutive odd numbers increase by 2
so the next odd number (the middle number) is:
2x + 1 + 2 = 2x + 3
and the third (the largest) consecutive is:
2x + 3 + 2 = 2x + 5
the sum of the the two largest numbers is:
2x + 3 + 2x + 5
3 times the smallest number is:
3(2x + 1)
the sum of the two largest is seven less than three times the smallest, so:
2x + 3 + 2x + 5 = 3(2x + 1) - 7
4x + 8 = 6x + 3 - 7
-6x -6x
-2x + 8 = -4
-8 -8
-2x = -12
÷(-2) ÷(-2)
x = 6
2x+1 = 2•6+1 = 13
2x+3 = 2•6+3 = 15
2x+5 = 2•6+5 = 17
Check:
2x+3+2x+5 = 15+3+15+5 = 38
38+7 = 45
45÷3 = 15
Kylee is going to make a pizza. The base of the pizza cost $4, pepperonis cost $0.13 cents each and she adds 8
mushrooms at $0.10 each. She spends a total of $6.10 on the pizza. Write an equation to model the number of
pepperonis she put on the pizza.
Answer:
Step-by-step explanation:
Base=4
Mushroom =0.10×8=0.80
0.80+4=4.80
6.10-4.80=1.30
1 pepperoni =0.13
?=1.30
1.30×1÷0.13=10
She bought 10 pepperonis
what is the product of (3d -5)(2d + 9)
What is the midpoint of (-9,5) and (21,-7)
Answer:
(6,13)
Step-by-step explanation:
use midpoint formula
(-9 + 21) ÷2 , (5+21) ÷2
12 ÷2 , 26 ÷ 2
6, 13
so the midpoint is at coordinates (6,13)
Answer:
(6,-1)
Step-by-step explanation:
The midpoint formula (x+x)/2 , (y+y)/2
-9+21/2 , 5+(-7)/2
which will equal 6,-1
A circular plot of diameter 28m is surrounded by a path of uniform width. If the area of the path is 346.5^2, find the width of the path.
Answer:
the width of the path is 2.81 m
Step-by-step explanation:
given:
A circular plot of diameter 28m is surrounded by a path of uniform width
If the area of the path is 346.5^2
find:
the width of the path.
---------------------------------
dia of circle = 28m
let Si = side of inner square path = 28 m
let So = outer side of square path = ?
1st step
is to get the total area
At = area of path + area of inner square
At = 346.5 + (28 x 28)
At = 1130 m²
2nd step
get the outer side of square path So
At = So²
1130 = So²
So = √1130
So = 33.62 m
lastly solve the width of path:
Width (w) = (So - Si)/2
w = (33.62 m - 28 m) / 2
w = 2.81 m
therefore,
the width of the path is 2.81 m
