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Law Incorporation [45]
2 years ago
5

I neeeddddd helpppppppp plllllzzzz

Mathematics
1 answer:
vesna_86 [32]2 years ago
6 0

Step-by-step explanation:

-3x + 7y = 5x + 2y (you subtract the 2y from both sides)

-3× + 5y = 5x (then add 3x to both sides)

5y = 8x (use x = - 5)

5y = 8x - 5 = -40 (both sides are divided by 5)

y = -8

answer is (-5, -8)

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scoundrel [369]

Answer:

b/6.4 = 8/5

Step-by-step explanation:

6 0
2 years ago
In 2006 there were 72 million dogs in u.s homes that number declined by 2 million in 2010 what was the percent decline in the nu
kolezko [41]
It decline 2 million dogs. 2 million over 72 million = 1/36, which is approximately 2.8 percent. 
5 0
2 years ago
Read 2 more answers
MathematicalUse Number Sense Duane and Mick are savingtheir money to build a tree house. Duane adds $5 to their piggybank every
Elina [12.6K]
Assuming they start saving at 0 dollars

45=total=duanesavings+micksavings
duanesavings=confusing, I will explain
mick savings =amount saves per week times number of weeks

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since they save at same time and at that week, when the weeks are equal (w=w), 45 it total

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divide by 4.5 both sides
w=10

10 weeks
8 0
3 years ago
Type the correct answer in each box. Spell all words correctly, and use numerals instead of words for numbers.
Natasha2012 [34]
<span>The missing angle measure in triangle ABC is 55°.

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The measure of angle ABC in triangle ABC is equal to the measure of </span><span>angle EFD in triangle DEF.

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5 0
2 years ago
A restaurant offers a choice of 4 salads, 9 main courses, and 4 desserts. How many possible 3-course meals are there
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Answer:

144

Step-by-step explanation:

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8 0
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