3 years ago

3x + y =11 and 6x + 3y = 24 solved by elimination

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

4 0

Y=2 x=3 double check is at bottom but cut off

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Daniel is three years older than twice his brother's age. Daniel is 17. Fill in the box with the expression that represents the

masha68 [24]

Daniel's age is X
Daniel's brother age is Y

X = 3 + ( 2Y )

Y = ( X - 3 ) / 2

In case of Daniel is 17

then his brother's age is = ( 17 - 3 ) / 2 = 7 years

4 0

3 years ago

In January, a dealership sold 164 vehicles. In February, the same dealership sold 23.8% fewer vehicles than they sold in January

sattari [20]

23.8% of 164 is 39.032 so minus that off of 164 and you would've sold 124.968 cars and im guessing you should round so the dealership would've sold 125 cars.

7 0

2 years ago

Im new to this, and feeling hopeless '-'

Ede4ka [16]

$\left[\begin{array}{ccc}22&18\end{array}\right]\times\left[\begin{array}{cccc}5&18&32&40\\25&40&38&12\end{array}\right]\\\\=\left[\begin{array}{cccc}22\cdot5+18\cdot25&22\cdot18+18\cdot40&22\cdot32+18\cdot38&22\cdot40+18\cdot12\end{array}\right]\\\\=\left[\begin{array}{cccc}560&1116&1388&1096\end{array}\right]$

second question:

January: 32 · 22 + 38 · 18 = 704 + 684 = 1388

December: 18 · 22 + 40 · 18 = 396 + 720 = 1116

1388 - 1116 = 272

Answer: $272.

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2 years ago

If f(x) = x2 + 1 and g(x) = x – 4, which value is equivalent to (f circle g) (10)?

mariarad [96]

Answer:

Step-by-step explanation:lol

7 0

2 years ago

Every piece of chicken costs $1.00.

abruzzese [7]

Answer:

Step-by-step explanation:

because if each piece of chicken is 1 dollar she would just have to multiply 1×5

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2 years ago