Carlos is using the distributive property to evaluate the expression 14 (49) by using friendlier numbers. His work is shown below.
Carlos’s Work
14 (49)
Step 1
14 (40 + 9)
Step 2
14 (40) + 9
Step 3
560 + 9
Step 4
569
What was the first error that Carlos made?
Answer:
B
Step-by-step explanation:
Took the quiz ;)
Write an equation for a line with a slope of
3 and a y-intercept of (0, 2).
Answer:
Step-by-step explanation:
y - 2 = 3(x - 0)
y - 2 = 3x - 0
y = 3x + 2
What is the value of y in the equation 5x + 2y = 20, when x = 0.3?
2.5
2.8
9.25
10.75
Step-by-step explanation:
5×0.3+2y=20
5×0.3= 1.5
1.5+2y=20
1.5+2y÷2=20÷2
1.5y=10
y=0.15
Answer:
y= 9.25
Step-by-step explanation:
5x + 2y = 20
2y = 20 - 5(0.3)
2y = 20 - 1.5
y = 20/2 - 1.5/2
y = 10 - 0.75
y = 9.25
Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. Negative 3 (x + 1) + 3 x = negative 3 (x minus 1) + 3 Which method should Jeremy use? Determine whether the equation has the form a = a, and if it does, the equation has infinitely many solutions. Determine whether the equation has the form a = b, and if it does, the equation has no solution. Determine whether the equation has the form x = a, and if it does, the equation has one solution. Determine whether the equation has the form x = 0, and if it does, the equation has no solution.
Answer:
The correct option is (c).
Step-by-step explanation:
The equation to be solved is:
[tex]-3(x+1)+3x=-3(x-1)+3[/tex]
The expression consist of only one variable, i.e. x.
So, to compute the value of this variable the equation has to be reduced to the form:
x = a
Thus, the correct option is (c).
Solve the equation as follows:
[tex]-3(x+1)+3x=-3(x-1)+3[/tex]
[tex]-3x-3+3x=-3x+3+3\\-3=-3x+6\\3x=6+3\\3x=9\\x=3[/tex]
Answer:
C
Step-by-step explanation:
Solve for g.
Give an exact answer.
10(0.4 + 0.5g) = 4g
Please help!
I need the answer as fast as possible!!
Answer:
4/5=g
thats what i got
eeee
Answer: The real answer is -4 bro.
Write 6.51 repeating as a mixed number in simplest form
Answer:
651/100
Step-by-step explanation:
Answer:6 51/100
Step-by-step explanation:I dont really feel like explaining lol
Carly is 24 which is 4 times as much as 5 less than Lucy's
age. How old is Lucy?
Answer:
11
Step-by-step explanation: 24÷4=6 6+5=11
Which of the following is not something that you could do with a normal checking account?
a. Deposit cash into your account.
b. Demand in writing that money be paid to another person from your account.
Give permission to a merchant to demand money from your account.
d. Make purchases or get cash now, and pay back the bank in monthly payments.
C.
Please select the best answer from the choices provided
A
B
С
D
Answer: Make purchases or get cash now, and pay back the bank in monthly payments
This sounds like it's describing what a credit card would do. A credit card is basically a piece of plastic you use to get microloans that you pay back, and there's a revolving line of credit. You can overdraw your checking account (assuming you have overdraft protection) but it's not the same as a credit card and the product/service you are trying to buy likely won't work.
Answer:
Step-by-step explanation:
it’s D.
What is the solution set for -4x + 10 > 5x + 55?
Answer:
x < -5
Step-by-step explanation:
What is 35/4 as a decimal?
8.5
8.75
9.25
9.5
Answer:
8.75
Step-by-step explanation:
Answer: 8.75
Step-by-step explanation:
Simplify the expression where possible:
(3b^3)^4
Answer:
27b^12
Step-by-step explanation:
It took Charles 18 minutes to walk 10 1/2 blocks at this rate how many blocks can Jakob walk in one minute? answer as a fraction PLEASE HURRY
Answer:
2
Step-by-step explanation:
there are 2 sacks and 4 balls so 2 in each sack
m+(3n - 5) =
- ² ?
+ (3 - ?
- 5)
2
Answer:
4567899999
Step-by-step explanation:
rfghnmbgfdsrthnb cxdfghn cxdfghjnm cdfrtgyhjmn
A straight line passing via (2,5) and (26/3,0) where should it intersect the x axis and the y axis
Answer:
( 2 , 5 ) and ( 26 /3 , 0 )
Step-by-step explanation:
Find the equation using the two points.
Use y = m x + b to calculate the equation of the line, where m represents the slope and b represents the y-intercept. To calculate the equation of the line, use the y = m x + b format.
Slope is equal to the change in y over the change in x , or rise over run.
The change in x is equal to the difference in x-coordinates (also called run), and the change in y is equal to the difference in y-coordinates (also called rise).
[tex]m=\frac{y_{2-y_{1} } }{x_{2-y_{1} } }[/tex]
Substitute in the values of x and y into the equation to find the slope.
[tex]m=\frac{0-(5)}{\frac{2}{6} -(2)}[/tex]
Multiply the numerator and denominator of the complex fraction by 3 .
Finding the slope m .
[tex]m=-\frac{3}{4}[/tex]
Find the value of b using the formula for the equation of a line.
[tex]b=\frac{13}{2}[/tex]
Find the x-intercepts.
To find the x-intercept(s), substitute in 0 for y and solve for x .
[tex]0=-\frac{3}{4}x+\frac{13}{2}[/tex]
solve the equation
[tex]x=\frac{26}{3}[/tex]
x-intercept(s): [tex](\frac{26}{3},0)[/tex]
Find the y-intercepts.
To find the y-intercept(s), substitute in 0 for x and solve for y .
[tex]0=-\frac{3}{4}*0+\frac{13}{2}[/tex]
[tex]y=\frac{13}{2}[/tex]
y-intercept(s): [tex](0,\frac{13}{2})[/tex]
Identify the terms, coefficients, and constants in the expression $18x+7$ .
Solve the equation 4y – 5x = -8 for y.
Answer:
y = -2 + 1.25x
Step-by-step explanation:
4y - 5x = -8 equation
4y = -8 +5x add 5x to both sides
y = -2 + 1.25x divide all by 4
Figure AB'C' is a dilation of figure ABC. Vertex A is the center of dilation. Complete the statement. Write your answer in the blank. figure ABC ~ figure
Answer:
figure ABC ~ figure AB'C'
Step-by-step explanation:
Figures related by dilation are similar. If AB'C' is a dilation of ABC, it is also similar to ABC.
You work at a local coffee shop in the mornings. You are paid $10
per hour. Write an algebraic expression to define the amount of
money you will make for t hours of work
Answer:
10t
Step-by-step explanation:
Brainliest!! look at the picture below.
Answer:
Reflection across the y-axis
Step-by-step explanation:
If you rotate it, it will come up upside down, and if you translate it, it would not be in the same position. The only one that makes sense on there is the reflection but even that doesn't make sense. The reflection line would be on 1 not the on the y-axis.
Sorry to say but you'll have to get it wrong to see the explanation. Or just guess.
(I don't mean to sound rude!!!!)
find the distance of (-4,-1) and (3,3)
the distance is √65 or 8.062258
Answer: √65
Step-by-step explanation:------------------
B is the midpoint of segment AC; AB = 8x, and AC = 4x + 48. What is BC?
Answer:
BC = -4x - 48
Step-by-step explanation:
AC - AB = BC
4x + 48 - 8x = BC
4x - 8x + 48 = BC
-4x - 48 = BC
How to solve -c(11c + 4)
Answer:
-11[tex]c^{2}[/tex] - 4c
Step-by-step explanation:
You have to distribute the -c to both of the numbers in the parentheses, so the eleven would become negative, and c multiplied by c is c squared. The positive 4 becomes negative 4, and 4 times c is 4c. Hope that helps!
Answer:
-11c^2 -4c
Step-by-step explanation:
Use the distributive property
A large pizza with four toppings costs $20. What is the ratio of cost to toppings?
Answer:
the ratio is 5 to 1.
Step-by-step explanation:
Answer:
5$ per topping there you go
An indirect proof assumes:
1. the negative of the conclusion is true
2. the negative of the given information is true
3. the negative of the conclusion is false
4. none of the above
Answer: 2. the negative of the given information is true
a garden store sold 8 bags of mulch and 3 bags of fertilizer for $24. The next purchase was for 5 bags of mulch & 5 bags of fertilizer. The cost of that purchase was $25. Find the cost of a single bag of fertilizer
Answer:
Step-by-step explanation:
let cost of bag of mulch=x
cost of bag of fertilizer=y
8x+3y=24 ...(1)
5x+5y=25
divide by 5
x+y=5
multiply by 3
3x+3y=15 ...(2)
subtract (2) from (1)
5x=9
x=9/5=1.8
9+5y=25
5y=25-9=16
y=16/5=3.2
cost of one bag of fertilizer=$3.2
The cost of a single bag of fertilizer is $3.2 and that of a mulch is $1.8
What is a system of linear equations?A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Given that, a garden store sold 8 bags of mulch and 3 bags of fertilizer for $24. The next purchase was for 5 bags of mulch & 5 bags of. The cost of that purchase was $25.
This situation will set a system of linear equations,
Let the costs of one bag of fertilizer be f and cost of one bag of mulch be m,
Therefore, establishing the system of linear equations,
8m + 3f = 24....(i)
5m + 5f = 25
or,
m + f = 5
m = 5-f...(ii)
Put eq(ii) in eq(i)
8(5-f) + 3f = 24
40 - 8f + 3f = 24
5f = 16
f = 3.2
Put f = 3.2 in eq(ii)
m = 5-3.2
m = 1.8
Hence, the cost of a single bag of fertilizer is $3.2 and that of a mulch is $1.8
Learn more about system of linear equations, click;
https://brainly.com/question/19549073
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Multiply the following complex numbers:
(9-21)(7 +61)
Answer:
-816
Step-by-step explanation:
-12*68= -816 this is probably wrong but this is what i got
Answer:
-816
Step-by-step explanation:
you subtract 9-21 to get -12 then you take 7+61 which is 68 and then you multiply them to get -816
Evaluate ab-0.5b when a=1 and b=5
Answer:
2.5
Step-by-step explanation:
ab - 0.5b
(1)(5) - 0.5(5)
5 - 2.5
2.5
Best of Luck!
What are the coordinates of P if it was reflected over the y-axis?
Answer:
it would be (6,-3)
Step-by-step explanation:
Please help ASAP!!!! Need by 6:30 on 9/25/2020, but even a late answer would be really appreciated. WILL GIVE OUT BRAINLIEST
Write as a square of a binomial:
10xy +0.25x^2+100y^2
Answer:
(.5x+10y)²
or (1/2x+10y)²
Step-by-step explanation:
How many solutions does the equation 30x+5=22x-8 have?
One Solution
Infinitely Many Solutions
No Solution
Answer:
One solution
Step-by-step explanation:
x= −13 /8
Give brainliest plz
