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marshall27 [118]
3 years ago
11

during the summer holidays your brother and extra money mowing lawns he mows six lines an hour and has 21 lawns to mow how long

will it take him

Mathematics
2 answers:
kiruha [24]3 years ago
7 0
It will take him 3 hours and 30 mins
8_murik_8 [283]3 years ago
4 0
3 1/2 hours because he has 3 6 lawns then 3 lawns left over
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Kids on the baby playground must be less then 5years old let y=the number of years old
Bad White [126]

Answer:

y<5   I DESERVE BRAINLIEST

Step-by-step explanation:

becasue baby on the playground must be less then 5years old

7 0
3 years ago
Which is greater 3yd or 30ft
Volgvan

Answer: 30 feet is greater

Step-by-step explanation:

3 yards is 9 feet (1 yard is 3 feet). 9 < 30. 30 feet is more than 9 feet, and 9 feet is equal to 3 yards so 30 feet is greater than 3 yards

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3 years ago
John has $1 in a savings account that earns 5% interest compounded annually
kiruha [24]

Answer:

16 cents

Step-by-step explanation:

A = P (1 + r)n

A = $1 (1 + 0.05)3

A = $1 x 1.16

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To find the compound interest only;

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Hence the compound interest John will earn in his savings account will be 16 cents.

3 0
4 years ago
Can y’all please help me answer these questions
mario62 [17]

Step-by-step explanation:

4.

⇒ V = \pi r^{2}h

⇒ V = \pi(10)^{2}(40)

⇒ V = 4000\pi

⇒ V = 12566.4cm^{3}

5.

⇒ V = \frac{1}{3}\pi r^{2}h

⇒ V = \frac{1}{3}\pi (8)^{2}(h)

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ a^{2} + b^{2} = c^{2}

⇒ (8)^{2} + h^{2} = 20^{2}

⇒ h = \sqrt{20^{2} - 8^{2}}

⇒ h = 4\sqrt{21}

Now substitute this into the volume formula.

⇒ V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})

⇒ V = \frac{256\sqrt{21} }{3}\pi

⇒ V = 1228.5mm^{3}

6.

⇒ V = l^{3}

⇒ V = (3.1)^{3}

⇒ V = 29.8inches^{3}

7.

⇒ V = \frac{1}{3}lwh

⇒ V = \frac{1}{3}(12)(4)(6)

⇒ V = 96inches^{3}

6 0
3 years ago
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Quadratic equations <br> 9 + 2x2 + 2 =0
TiliK225 [7]

Answer:i kinda don't understand but i guess you mean sqrt11/2?

Step-by-step explanation:2x^2+11=0 easy move

4 0
3 years ago
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