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2 years ago

Derek takes 6 minutes to construct one section of fence, how many sections can he construct in 90 minutes

Mathematics

2 answers:

Sindrei [870]2 years ago

4 0

Answer:

15 sections

Step-by-step explanation:

90/6=15

Misha Larkins [42]2 years ago

4 0

Answer:

15 sections

Step-by-step explanation:

just divide 90 by 6

u could imagine it as a proportion

$\frac{6 \: hours}{1 \: section} = \frac{90 \: hours}{x \: sections}$

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Sadie has mangos and watermelons in a ratio of 91:11. How many mangos does she have if she has 66 watermelons?

snow_lady [41]

Answer:

546 manogoes

Step-by-step explanation:

Sadie has mangos and watermelons in a ratio of 91:11.

We need to find the number of mangoes if she has 66 watermelons.

It means that,

11x = 66

x = 6

So,

Mangoes = 91x

= 91(6)

= 546

Hence, there are 546 mangoes.

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3 years ago

Why do some utility companies allow customers to pay an average fee each month?

Rus_ich [418]

Because to pay for other employees and for there taxes and others

Be sure to thank me :)

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3 years ago

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7/12+1/3 show your work and how you got your answer and you do all that and don’t scam me I will give branlist

Yanka [14]

Answer: 11/12

Step-by-step explanation:

7/12 and 1/3 don’t have the same denominator, so you can’t just add them right away. You have to give them the same bottom number. 1/3 = 4/12, so you can do it like this:

7/12 + 4/12 = 11/12

11/12 is in simplest form, so that should be correct! Hope this helps! :)

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2 years ago

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An architect wants to draw a rectangle with a diagonal of 13 centimeters. The length of the rectangle is to be 3 centimeters mor

butalik [34]

Answer:

The rectangle is 3.2 cm by 12.6 cm

Step-by-step explanation:

See attached image for a diagram.

Choose w to represent the width because the length is described by referring to the width: it's 3 more than (add 3) triple (multiplied by 3) the width.

Length = 3w + 3

The diagonal forms two right triangles, each with leg = w, other leg = 3w + 3, hypotenuse = 13.

The Pythagorean Theorem says $(\text{leg})^2+(\text{leg})^2=(\text{hypotenuse})^2$ so

$w^2+(3w+3)^2=13^2\\\\w^2+9w^2+18w+9=169\\\\10w^2+18w-160=0\\\\5w^2+9w-80=0\\$

Now solve using the Quadratic Formula with $a=5,\,b=9,\,c=-80$ .

$w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\w=\frac{-9\pm\sqrt{81+1600}}{10}\\\\w=\frac{-9\pm\sqrt{1681}}{10}\\\\w=\frac{-9\pm41}{10}\\\\w=-5\text{ or }w=3.2$

The negative root makes no sense as a distance, so the width of the rectangle is 3.2 cm. The length is 3(3.2) + 3 = 12.6 cm.

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2 years ago

Hannah has 24 stickers. This is 6 less than twice the number of (n) molly has.

lianna [129]

Are you trying to set up the equation?
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2 years ago

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