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rusak2 [61]
3 years ago
9

Is (-4, 2) a solution of 4x + 5y < -7?

Mathematics
1 answer:
cupoosta [38]3 years ago
4 0

Answer:

No

Step-by-step explanation:

Substitute the coordinates of the point into the left side of the inequality, evaluate and compare.

4(- 4) + 5(2) = - 16 + 10 = - 6 > - 7

Thus (- 4, 2 ) is not a solution

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Three friends live in three different states. Monica lives in Rhode Island, Anthony lives in Ohio, and Thomas lives in Colorado.
steposvetlana [31]

Sales tax in Colorado is 2.85%, in Ohio is 5.50%, and in Rhode Island is 7%.

  • Colorado:
  • 3.50 = 100
  • 3.60 = X
  • 3.60 x 100 / 3.50 = X
  • 360 / 3.5 = X
  • 102.85 = X
  • 2.85% = Sales tax

  • Ohio:
  • Y = 1.055X
  • 10 x 1.055 = Y
  • 10.55 = Y
  • 10 = 100
  • 10.55 = X
  • 10.55 x 100 / 10 = X
  • 1055 / 10 = X
  • 105.5 = X
  • 5.5% = Sales tax

  • Rhode Island:
  • 10 = 100
  • 10.70 = X
  • 10.70 x 100 / 10 = X
  • 1070 / 100 = X
  • 107 = X
  • 7% = Sales tax

Therefore, sales tax in Colorado is 2.85%, in Ohio is 5.50%, and in Rhode Island is 7%.

Learn more about maths in brainly.com/question/25866144

5 0
3 years ago
The boys mixed 10 gallons of the 20% pure lemon juice and 10 gallons of the 70% pure lemon juice mix, because they wanted 20 gal
mars1129 [50]
The boys should use 140% of pure lemon juice mi to get <span>a final mixture of 20 gallons at 40% lemon juice:

if 20:70 the 40:70 - it is more like ration and proportion. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
</span>
6 0
3 years ago
A Florida factory produces reels at a rate of 800 per day,every day,in April they are forced to cut their production by 1/5 dues
makkiz [27]
There will be 53 fishing reels being produced in April
4 0
3 years ago
First to answer gets brainliest
Feliz [49]

Answer:

all you said was first to answer gets brainly so give it over

Step-by-step explanation:

4 0
3 years ago
Pls answer<br>-0.4x-10&gt;14​
joja [24]

Answer:

x < −60

Step-by-step explanation:

<em><u>Step 1: Add 10 to both sides.</u></em>

−0.4x−10+10>14+10

−0.4x>24

<em><u>Step 2: Divide both sides by -0.4.</u></em>

−0.4x / −0.4 > 24 / −0.4

x<−60

4 0
4 years ago
Read 2 more answers
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