2 years ago

Lori has 12 1/2 pounds of flour. She needs 1 3/4

Mathematics

1 answer:

12345 [234]2 years ago

4 0

She can make 7 1/7 batches of cookies :)

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A small airplane can fly 12 miles in 3 minutes. At this rate, how far can the airplane fly in 1 hour?

Sidana [21]

Answer:

The airplane can fly up to 240 miles in a hour

Step-by-step explanation:

Cross multiply

(12)(60)=3x

720=3x

Divide 3 on both sides

x=240

7 0

3 years ago

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An equilateral triangle has a perimeter of 48 cm. What is the area?

KiRa [710]

Answer:

$A=64\sqrt{3}\ cm^2$

Step-by-step explanation:

we know that

An equilateral triangle has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

Find the area

The formula of area applying the law of sines is equal to

$A=\frac{1}{2}b^2sin(60^o)$

substitute the value of b

$A=\frac{1}{2}(16)^2sin(60^o)$

$sin(60^o)=\frac{\sqrt{3}}{2}$

$A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})$

$A=64\sqrt{3}\ cm^2$

6 0

3 years ago

Help Me plssssssss and Thxs

Vanyuwa [196]

Answer:

1. 7/10

2.1/10

3.6/10 (Simplifly is 3/5)

4. 1/10

Step-by-step explanation:

5 0

2 years ago

If f(x) = 130x - 2], find f(3)

Brilliant_brown [7]

Answer:

Step-by-step explanation:

only due .I am not very sure

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2 years ago

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URGENT NEED ANSWERS •_•

Anna11 [10]

9. 130 = x + 137
answer x = -7

10. 9x-3 = 4 + 8x
9x = 7 + 8x
answer x = 7

4 0

3 years ago