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My name is Ann [436]
3 years ago
12

What are exactly two sums that are equivalent to 7(10a+3b)

Mathematics
1 answer:
lina2011 [118]3 years ago
7 0
7(9a+4b) and 7(8a+5b)
You might be interested in
3) Valerie works at a local amusement park. She earns $9.80 per hour. She 20 points
NemiM [27]
<h3>Answer:  Choice A</h3><h3>9.80h+10 = 88.40</h3>

===========================================================

Work Shown:

  • h = number of hours worked.
  • 9.80h = amount of money earned after working h number of hours (ignoring the meal bonus).
  • 9.80h+10 = total amount of money earned after adding on the meal bonus.
  • 9.80h+10 = 88.40 is the equation we use since the total 9.80h+10 is the same as the total she earned 88.40 dollars.

--------------------

Extra info (optional section)

If you want to solve for h, then you could follow these steps.

9.80h+10 = 88.40

9.80h = 88.40-10 ... subtract 10 from both sides

9.80h = 78.40

h = 78.40/9.80 .... divide both sides by 9.80

h = 8

Valerie worked 8 hours on Friday.

As a check,

9.80h + 10 = 88.40

9.80*8 + 10 = 88.40

78.40 + 10 = 88.40

88.40 = 88.40

The answer is confirmed.

3 0
3 years ago
Tami is building a wooden deck. The deck needs 25 pieces of wood and each piece of wood needs 4 screws. If Tami already has 20 s
Viktor [21]

Answer:

80 screws

Step-by-step explanation:

25(4)-20

100-20

80

8 0
3 years ago
Read 2 more answers
All the expression that are equivlent to 18m - 90
swat32

Hey there!

  • \bold{18m-90}
  • \bold{18(m-5)}
  • Check: \bold{18\times m} →\bold{18m}
  • \bold{18\times-5} →  \bold{-90}
  • \boxed{Answer:18(m-5)}

Good luck on your assignment and enjoy your day!

~\bold{LoveYourselfFirst:)}


6 0
4 years ago
A count went up from 450 to 600. What was the approximate percent increase?
Kaylis [27]

Answer:33.3%

Step-by-step explanation: it increases by 150 and 150 of the original 450 is 33.3%

8 0
4 years ago
-6c&lt; -12<br> what will the answear be
murzikaleks [220]

Answer:c>2

Step-by-step explanation:

-6c (divide) (-6) > -12 (divide) (-6)

c>-12 (divide) (-6)

c>12 (divide) 6

c> 2

8 0
3 years ago
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