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Furkat [3]
3 years ago
10

A block of stone measures 15cm times 15cm times 20 cm .what is the total surface area of the stone hint has six sides

Mathematics
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

The answer is 4,500

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Find the measure of an angle whose complement is five times its measure.
ch4aika [34]

Answer:

The measure of the unknown angle is 15°.

Step-by-step explanation:

Represent this angle by A.  Then the complement of A is 90° - A.

"Angle whose complement is five times its measure" would be expressed as

90° - A = 5A

Solve this for A by adding A to both sides:

90° = 6A.  Then A = 90°/6, or 15°

4 0
2 years ago
Veronica has been saving dimes and quarters. She has 94 coins in all and the total value is $19.30. How many dimes and how many
Stolb23 [73]

Answer:

Step-by-step explanation:

d + q = 94.....d = 94 - q

0.10d + 0.25q = 19.30

0.10(94 - q) + 0.25q = 19.30

9.4 - 0.10q + 0.25q = 19.30

-0.10q + 0.25q = 19.30 - 9.40

0.15q = 9.90

q = 9.90/0.15

q = 66 <===== there are 66 quarters

d + q = 94

d + 66 = 94

d = 94 - 66

d = 28 <==== there are 28 dimes

3 0
3 years ago
What’s 20 over 14 as a percentage
sergey [27]

Answer: 14 / 20 = 70%

Step-by-step explanation:

8 0
3 years ago
If b = 7 and A = 80 degrees,<br> find c.
bixtya [17]

Answer:

Step-by-step explanation:

7/sin10=c

c=40.31

6 0
3 years ago
What is 5p+2q-3p-3q
aivan3 [116]
2p-1q is the answer 
5p+2q-3p-3q
isolate the variables:
5p-3p+2q-3q
simplify:
2p-1q
that is the answer! 
hope I helped! :)
8 0
3 years ago
Read 2 more answers
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