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3 years ago

Can you solve these problems?Worth-10 points

Mathematics

1 answer:

inn [45]3 years ago

3 0

12, 72, 81, 36, 50, 12, answers for bottom row.

45, 20, 42, 36, 30, 9 answers for top row.

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How can you solve this problem? Please help!!

polet [3.4K]

A. 13 hours
b. 0.52 hours

7 0

3 years ago

Angle $eab$ is a right angle, and $be = 9$ units. what is the number of square units in the sum of the areas of the two squares

Alla [95]

Let the measure of side AB be x, then, the measue of side AE is given by

$AE=\sqrt{9^2-x^2}$ .

Now, ABCD is a square of size x, thus the area of square ABCD is given by

$Area=x^2$

Also, AEFG is a square of size $\sqrt{9^2-x^2}$ , thus, the area of square AEFG is given by

$Area=\left(\sqrt{9^2-x^2}\right)^2=9^2-x^2=81-x^2$

<span>The sum of the areas of the two squares ABCD and AEFG is given by

$x^2+81-x^2=81$

Therefore, </span>the number of square units in the sum of the areas of the two squares <span>ABCD and AEFG is 81 square units.</span>

8 0

2 years ago

A music store is having a sale where you can buy 2 new-release CDs for $15. How much will 7 CDs cost? Use at least 2 ways to sho

Pavlova-9 [17]

Answer: $52.50

Step-by-step explanation:

1 way : 15 divided by 2 then multipy your answer by 7

2nd way : 15x7. Once you get that answer divide it by 2 to get $52.50

7 0

2 years ago

Read 2 more answers

1. A Square shaped wooden plate has a diagonal length of 30cm. Can you find the Perimeter of plate ?

DerKrebs [107]

Answer:

84.85cm

Step-by-step explanation:

Let the sides of the square be x

The perimeter of the square = 4x

Get x using the pythagoras theorem

x^2 + x^2 = 30^2

2x^2 = 900

x^2 = 450

x = 21.21cm

Perimeter of the plate = 4(21.21)

Perimeter of the plate = 84.85cm

6 0

2 years ago

7 pounds for $10.43; 10 pounds for a dollars

olya-2409 [2.1K]

Answer:

7pounds=$10.43

10 pounds=? solution 10.43×10÷7=14.9 the equals sign means cross multiply.

8 0

2 years ago