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3 years ago

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Mathematics

2 answers:

eduard3 years ago

4 0

If you add the angles of a triangle, your sum should always be 180°

70° + 80° + x° = 180°
150° + x = 180°

subtract 150 from both sides of the equation.....
150° + x = 180°
-150 -150

x = 30

your answer is 30°

never [62]3 years ago

3 0

Hey There!

80+70 is 150

180
-150
is 30 so 30 must be your answer

Hope This Helps!!!

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7) Number of Calendars Cost 6 $114 8 $144 10 $160 15 $180 20 $300 A gift store is ordering calendars to resell. The table shows

laila [671]

Answer:

The best value is $\$ 180$ for $15$ calendars.

Step-by-step explanation:

Lets find out the unit cost of each calendars with different prices given here.

The price of $6$ calendars is $\$ 114$ .

Unit cost of these calendars $= \frac{114}{6} = \$ 19$

The price of $8$ calendars is $\$ 144$ .

Unit cost of these calendars $= \frac{144}{8} = \$ 18$ .

The price of $10$ calendars is $\$ 160$ .

Unit cost of these calendars $= \frac{160}{10} = \$ 16$ .

The price of $15$ calendars is $\$ 180$ .

Unit cost of these calendars $= \frac{180}{15} = \$ 12$ .

The price of $20$ calendars is $\$300$ .

Unit cost of these calendars $= \frac{300}{20} = \$ 15$ .

So the best value from customer point of view is the lowest unit cost.

And the lowest cost is being offered for $15$ calendars $\ @\ 12\$$ per calendar.

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Sally had 57 apples if she gave 48 to charity how many apples does she have left

marin [14]

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Step-by-step explanation:

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3 years ago

The scale used on a map is 1:250,000 the distance measures 8.5 centimetres what is the actual distance ?

LUCKY_DIMON [66]

8.5 × 250, 000 =

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Airida [17]

Answer:

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Step-by-step explanation:

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Write the expression in WORDS!<br><br> 5x + 3

Svet_ta [14]

The expression 5x+3 would be three more than five times a number! More than in this case would be addition - so if you get the same problem with subtraction you just change more to less!
Basically what it's tell you is that if x stood for 2 in this case 5*2 = 10 since it's 3 MORE than 5 times a number (x is in place of a number), you're adding 3 to 10 and that gives you 13!
I hope I simplified it a little more and you understand!
Good luck, rockstar! c: I hope this helped!

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3 years ago