3 years ago

PLEASEEEE answer!!!! NEED THIS TO GRADUATE

Mathematics

1 answer:

KengaRu [80]3 years ago

8 0

Answer:

number of students with blue eyes and blond hair= 42

Number of students with grey eyes and brown hair= 5

Difference of number of kids with grey eyes and brown hair and the number of students with green eyes and black hair =6

Difference of the number of students with green eyes and blond hair and the number of students with grey eyes= 14

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4x+11y=7 4x+3y=-1 what are the steps

andreev551 [17]

Answer:

x = -1, y = 1

Step-by-step explanation:

Given that:

$\begin{bmatrix}4x+11y=7\\ 4x+3y=-1\end{bmatrix}$

Isolate x for 4x + 11y = 7 which ⇒ $x=\frac{7-11y}{4}$

Substitute $x=\frac{7-11y}{4}$ into the equation: which is:

$\begin{bmatrix}4\cdot \frac{7-11y}{4}+3y=-1\end{bmatrix}$

Drop Down to:

$\begin{bmatrix}7-8y=-1\end{bmatrix}$

Isolate y for 7-8y = -1: y = 1

Thus, $x=\frac{7-11y}{4}$

Substitute y = 1

Hence,

$x=\frac{7-11\cdot \:1}{4}=-1$

Solution ⇒ x = -1 and y = 1

~learn with lenvy~

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$T(-6,2)=(-6-1,2+1)=(-7,3)$

Therefore A'=( -7,3).

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What is the scintific notation of 4,497,000,000

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Answer:

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