3 years ago

The four-digit numeral 3AA1 is divisible by 9. What digit does A represent?

Mathematics

1 answer:

Andreas93 [3]3 years ago

6 0

Answer:

Step-by-step explanation:

Trial and error. Start with 1 and go to 9

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PLEASE HELP FAST answers: a.) 4 b.) 10 c.) 6 d.) 1

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Answer:

Step-by-step explanation:

There are 5 points. So there are 4 segments. The segments are the line between two points.

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3 years ago

99 pencils cost \$7.74$7.74dollar sign, 7, point, 74. Which equation would help determine the cost of 666 pencils? Choose 1 answ

balu736 [363]

Answer:

$\large \boxed{\text{A) } \dfrac{6}{x} = \dfrac{9}{\$7.74}}$

Step-by-step explanation:

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The ratios are

$\dfrac{9}{6} = \dfrac{\$7.74}{x}$

According to the alternendo property,

$\dfrac{9}{6} = \dfrac{\$7.74}{x} \Rightarrow \dfrac{9}{\$7.74} = \dfrac{6}{x}\\\\\text{The correct answer is $\large \boxed{\mathbf{ \dfrac{6}{x} = \dfrac{9}{\$7.74}}}$}$

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2 years ago

In a pet store the number of fish is 120 more than three times the number of reptiles. If the pet store has 210 fish, how many r

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Let r represent reptiles
210=3r-120
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110 reptiles

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3 years ago

An equation _____ has one solution. always sometimes never

alina1380 [7]

I think the correct answer from the choices listed above is the second option. An equation sometimes has one solution. A system of equation can have one solution when the equations intersect at one point. Equations can also have two or more number of solutions.

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3 years ago

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mixas84 [53]

Answer:

the length of an arc = 10π ft.

Step-by-step explanation:

The length of an arc with angle Θ and radius r will be equal r * Θ

note the angle must be in radian

Given: Θ = 180° = π and radius = r = 10 ft.

So, the length of the arc = π * 10 = 10π ft.

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3 years ago