2 years ago

Which expressions are equivalent to

Mathematics

1 answer:

Paladinen [302]2 years ago

8 0

Answer: 30/40+16/40 and 15/20+8/20 pls mark brainliest

Step-by-step explanation:

You know that 3/4+2/5=23/20.

Now select the other expressions equal to that. They are: 30/40+16/40 and 15/20+8/20

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A change purse contains an equal number of pennies, nickels, and dimes. The total value of the coins is 208

Aliun [14]

Answer:

x= 14

Step-by-step explanation:

x + 5x +10x = 224 CENTS

solving for x

16x = 224

x = 14, the number of each coin there is

5 0

3 years ago

30 \div \frac{1}{3} 30÷ 3 1

ioda

Answer:

Step-by-step explanation:

$30 \div \frac{1}{3} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:30=\frac{30}{1}\\=\frac{30}{1}\div \frac{1}{3}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}\\=\frac{30}{1}\times \frac{3}{1}\\\\\mathrm{Apply\:rule}\:\frac{a}{1}=a\\=30\times \:3\\\\=90$

7 0

2 years ago

Read 2 more answers

What is the volume of the cone? Use π ≈ 3.14. 12.56 cubic units 18.84 cubic units 20.93 cubic units 25.12 cubic units

HACTEHA [7]

Answer:

volume of cone = 12.56 cubic units

Step-by-step explanation:

Volume of cone = 1/3 π r² h

r = 2

h = 3

then

V= 1/3 3.14 * (2) ² 3

= 12.56 cubic units

4 0

2 years ago

Work out the volume of this hemisphere with diameter 9.6 cm

weqwewe [10]

Answer:

Please refer to the attachment

7 0

2 years ago

Question 7

CaHeK987 [17]

Answer:

6.6

Step-by-step explanation:

The way to do this is to find the tax as a decimal. Worry about the 100 later.

54 * x = 3.56

Divide by 54

x = 3.56/54

x = .06593

Now use the 100

0.06592 * 100 = 6.593

But you want it rounded to the 1/10

So you should get 6.6 %

6 0

3 years ago