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Anon25
1 month ago
7

Vineet solved a system of equations by substitution. In his work, he substituted an expression for one of the variables and solv

ed for the value of the other. This resulted in the equation 7 = 9. What can Vineet conclude? The solution to the system is (7, 9). The system of equations does not have a solution. The work must be incorrect because it is not possible to get this equation. The system of equations has infinitely many solutions.
Mathematics
2 answers:
PIT_PIT [12.4K]1 month ago
10 0
Vineet can deduce that:
B ) there is no solution for the system of equations.
tester [12.3K]1 month ago
8 0
Vineet addressed a system of equations using substitution. In his calculations, he replaced one variable with an expression and determined the other variable's value. This led to the equation 7 = 9. What conclusion can Vineet draw? A) The system's solution is (7, 9). B) There is no solution to the system of equations. C) His calculations are incorrect since the outcome cannot yield this equation. D) The equations of the system provide infinitely many solutions.
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243.875 to nearest tenth, hundredth, ten, and hundred
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When rounding 243.875: to the nearest tenth, it becomes 243.9; to the nearest hundredth, it is 243.88; to the nearest ten, it rounds down to 240; and to the nearest hundred, it rounds down to 200. The general rule in rounding states that if the decimal is less than 5, the number remains the same; if it is 5 or more, you round up.
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Gabe charges $30 to mow a lawn. Nate
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2 months ago
How could Brent use a rectangle to model the factors of \large x^2-7x+6?
PIT_PIT [12445]
Brent could represent a rectangle with the dimensions of x - 1 and x - 6, then demonstrate that the area equals the combination of x^2, -x, -6x, and 6.
5 0
1 month ago
As a part-time contractor, you want to test a new cement mixture for a project. You need 2 34 wheelbarrows of sand to make 8 whe
zzz [12365]

Answer: He will require 10.07 cubic feet of sand for the wheelbarrows.

Step-by-step explanation:

Given that

the ratio of wheelbarrows filled with sand to those filled with concrete is expressed as

2\dfrac{3}{4}:8\\\\=\dfrac{11}{4}:8\\\\=11:32

The volume of concrete in wheelbarrows is 248 cubic feet.

Then the volume of sand in wheelbarrows can be found as

(\dfrac{11}{32})^3=\dfrac{x}{248}\\\\\dfrac{1331\times 248}{32^3}=x\\\\10.07=x

Therefore, he will require 10.07 cubic feet of sand for the wheelbarrows.

7 0
2 months ago
Read 2 more answers
What is a3 in an arithmetic sequence in which a10=41 and a15=61
zzz [12365]
\bf \begin{array}{llll}
term&value\\
-----&-----\\
a_{10}&41\\
a_{11}&41+d\\
a_{12}&(41+d)+d\\
&41+2d\\
a_{13}&(41+2d)+d\\
&41+3d\\
a_{14}&(41+3d)+d\\
&41+4d\\
a_{15}&(41+4d)+d\\
&41+5d=61
\end{array}
\\\\\\
41+5d=61\implies 5d=20\implies d=\cfrac{20}{5}\implies \boxed{d=4}\\\\
-------------------------------\\\\

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
d=4\\
n=10\\
a_{10}=41
\end{cases}
\\\\\\
41=a_1+(10-1)4\implies 41=a_1+36\implies \boxed{5=a_1}

therefore

\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
d=4\\
n=3\\
a_{1}=5
\end{cases}
\\\\\\
a_3=a_1+(3-1)4\implies a_3=5+(3-1)4

and you are probably aware of the amount.
8 0
1 month ago
Read 2 more answers
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