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3 years ago

In 24 days Elmo will celebrate his birthday he will be 12 years old how many weeks until his birthday????

Mathematics

2 answers:

koban [17]3 years ago

7 0

3 weeks and 3 days is the answer. This is bc 21/7 is 3. And the left over is 3

Colt1911 [192]3 years ago

6 0

1 week = 7 days.
24 days= 3 $\frac{3}{7}$

Work: 7 x 3 = 21.
24 - 21 = 3

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3 years ago

the volume v of a tank varies directly with its height h a tank 12 ft High holds 300 cubic feet write an equation relating v &am

Liula [17]

v varies directly with height means

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3 years ago

(4x + 4)(ax – 1) – x2 +4

Oksana_A [137]

Answer:

b=-3

Step-by-step explanation:

If the expression simplifies to bx that means the $x^{2}$ terms and the constant terms must be cancel out.

Simplify it first.

$(4x+4)(ax-1)-x^{2} +4\\=(4ax^{2} -4x+4ax-4)-x^{2} +4\\=4ax^{2} -x^{2} -4x+4ax-4+4\\=4ax^{2} -x^{2} -4x+4ax$

We know –4 + 4 will cancel out. If we simplify this expression to only an x term, then the $x^{2}$ terms should be cancelled. Therefore, we say that 4ax^2 – x^2 = 0.

$4ax^{2} -x^{2} =0\\x^{2} (4a-1)=0\\4a-1=0\\4a=1\\a=\frac{1}{4}$

If we put a = ¼, then we can find the value of b:

$=4(\frac{1}{4} )x^{2} -x^{2} -4x+4(\frac{1}{4} )x\\=x^{2} -x^{2} -4x+x\\ (cancel out x^{2} terms)\\$

$=-3x$

$bx=-3x\\$ if the expression is equivalent to bx

Therefore, b = –3.

8 0

3 years ago

For the equation, y=-x+4 tell whether its graph passes through the first quadrant. Explain how you know. Please help asap!

marysya [2.9K]

Yes it does because when you graph it the next point would be (1,0).

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3 years ago

Write 10 12/5 as an equivalent improper fraction

romanna [79]

10 $\frac{12}{5}$ = $\frac{(10 X 5 ) + 12}{5}$
= $\frac{62}{5}$

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4 years ago