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lilavasa [31]
3 years ago
15

Simplify.

Mathematics
1 answer:
igomit [66]3 years ago
7 0
-4x^2-5x-15+x^2= -3x^2-5x-15 is the answer
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1.)David is starting a collection of baseball cards. He currently has 16 cards in his collection. He hopes to buy 5 more each mo
Elena-2011 [213]
<span>MCAS Open-Response Questions & Answers. Mathematics – Middle School Level. Wachusett Regional School District. 1. Rev. April 2003 srm. Question #1 ..... If the grocer uses the same number of 5kg bags as. 2kg bags, how many bags did he use in all? Answer #16 x = total number of bags. 5(1/2x) + 2(1/2 x) = 252.</span><span>
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6 0
3 years ago
Larry buys a tent that is on sale for 25% off the original price. The original price is $80 more than the sale price. What is th
myrzilka [38]

Answer:

The original price of the tent = $320

Step-by-step explanation:

Let the original price be =$ x

Discount offered  = 25% of the orignal price = \frac{25}{100}\times x=0.25\times x =\$ 0.25x

Original price is $80 more than sale price

Discount = Original price - Sale price = $80

So, we have

0.25x=80

We need to solve for x to find original price

Dividing both sides by 0.25

\frac{0.25}{0.25}x=\frac{80}{0.25}\\x=\$320

∴ The original price of the tent = $320

3 0
3 years ago
A copy machine makes 24 copies per minute. How long does it take to make 90 copies?
quester [9]

that would be 3 minutes and 45 seconds (:

5 0
3 years ago
Can someone explain how this works and help me to find the answer?
pav-90 [236]
470 = 8.75(46 - c) + 11c
470 = 402.5 - 8.75c + 11c
67.5 = 2.25c
30 = c

If c = 30 and Soren worked 30 hours in the office, earning $11 per hour, he earns $330 from his office job. 46 - 30 = 16, which should be the remaining amount of hours Soren worked. 16 * 8.75 = 140. He earned $140 from his cashier job. $330 + $140 = $470.

The correct formula to solve this problem is A. 11c + 8.75(46 - c) = 470
8 0
3 years ago
4) Which pair of triangles is congruent by Angle - Angle- Side?
andrey2020 [161]

Answer:

1. Not equal

2. Equal but not connected

3. Equal

4. Equal

Step-by-step explanation: Sorry if not correct :(

3 0
3 years ago
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