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barxatty [35]
4 years ago
15

In your classroom, a dry erase board is 8 feet long and 4 feet wide. You teacher makes individual dry erase boards for you to us

e at your desk that are 11.5 inches long and 9.5 inches wide. Are the boards similar?
Mathematics
1 answer:
hoa [83]4 years ago
5 0

Answer:

No

Step-by-step explanation:

The ratio of length to width in the first is 2 : 1 while the ratio of the second is 23 : 19

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Given 2 circles: One with a diameter of 20 cm and another with a 50 cm, find the difference between the 2 areas. Hint: area= pi
Lelu [443]

Answer:

1648.5

Step-by-step explanation:

20cm radius - 10

50cm radius- 25

area = 3.14×10²

3.14×100

=314

area= 3.14× 25²

3.14×625

= 1962.5

1962.5

- 314

_________

1648.5

6 0
3 years ago
A sports club needs to raise at least $500 by selling chocolate bars for $2.50 each. Sebastian wants to know how many chocolate
mario62 [17]

Answer:

The inequality should be written as $2.50 times c is greater than or equal to c.

Step-by-step explanation:

First, identify what you know:

1) Each chocolate bar is $2.50

2) Sebastian needs to raise at least $500

So, Sebastian needs to sell at least enough chocolate bars to hit $500. The inequality cannot be written as less than or equal to, because he can't sell less than the number of chocolate bars needed to make $500.

Automatically, I can calculate the minimum number of bars he'll need to sell.

500/2.50 = 200 chocolate bars minimum

c must equal greater than or equal to $500, for Sebastian to raise enough money! So, basically Sebastian has to sell 200 bars OR more.

Hope this helps! :)

4 0
3 years ago
Read 2 more answers
Which congruence criteria can be used directly from the information about triangles HIJ and MNO to prove IJ¯¯¯¯¯¯≅MN¯¯¯¯¯¯¯¯¯¯ b
skelet666 [1.2K]

Answer: \overline{IJ}\cong \overline{MN}

Step-by-step explanation:

Given: In triangle HIJ and triangle MNO we have

\overline{HI}\cong \overline{NO}, \angle{I}\cong \angle{N} ,\angle{H}\cong \angle{O}

here, HI and NN are the included side between  ∠I & ∠H and ∠N and ∠O.

So , by ASA congruence rule,

ΔHIJ ≅ ΔMNO

So by CPCTC  (corresponding parts of the congruent triangles are congruent)

\overline{IJ}\cong \overline{MN}

7 0
3 years ago
Person A buys 12 granola bars and 7 cups of yogurt for $15.50. Person B buys 6 granola bars and 11 cups of yogurt for $11.50. Fi
nlexa [21]

By trial and error, I got it first correctly. The granola bars cost $1 each and the yogurt is $.50 per cup. By plugging this in to each equation, you'll see that 12 granola bars equals $12, and 7 cups of yogurt equals $3.50, for a total of $15.50. The second account would produce $6 + $5.50, which equals $11.50.

3 0
3 years ago
PLZ HELP I HAVE A MATH TEST FINAL AND THIS IS GOING TO BE ON THE TEST 0.3(6z+7.2)=0.5(8z+4)-0.94
SOVA2 [1]

Answer:

oh god let me try help

Step-by-step explanation:

hm, I seemed to have gotten 7.42 my deepest apologies if it's incorrect!! :(

7 0
3 years ago
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