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dimulka [17.4K]
3 years ago
7

Which of these systems of equations has an infinite

Mathematics
1 answer:
zepelin [54]3 years ago
3 0

Answer:

B) -6c + 11d = 20

-5c + 8d = 22

Brainliest plz?

Hope this helps!

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If the simple interest on $7,000 for 7 years is $2,450, then what is the interest rate?
-BARSIC- [3]

Answer:

5% see above for how I got that

5 0
3 years ago
2. Which statement is not true in the equation
Oduvanchick [21]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
3xy - ² + 4x for x = -2, y = - and = 6?
Kitty [74]

Answer:

See below

Step-by-step explanation:

Not sure what you are asking....do you want to know what y is when x = -2   and the equation = 6 ?

3 xy^2 + 4x = 6         or is that    3 xy^(-2) + 4x = 6

Could use some serious editing of your question if you are able ....

7 0
2 years ago
I’ll give the Brainliest to who answers these questions with reasonable explanations.
miss Akunina [59]

Answer:

\mathrm{1.\:D.\:8.4\%}\\\mathrm{2.\:C.\: \$96.60}\\\mathrm{3.\:D.\: \$227.85}\\\mathrm{4.\:B.\:\$490}

Step-by-step explanation:

1. The car's initial price was $273. Since the sale price is $250, the car is on a 273-250=\$23 discount. The percent of discount is the discount price over the initial price:

\frac{23}{273}\approx \fbox{$8.4\%$}.

2. Since the weight racks were initially priced $46, then marked up 210%, their mark-up is:

46\cdot2.1=\fbox{$\$96.60$}

*Worth noting that this is the mark-up (as the question is asking), not the total price after the mark-up.

3. The TV's initial price is $325.50. If it's on sale for 30%, it's final price will be 100\%-30\%=70\% of the initial price:

\$325.50\cdot 0.7=\fbox{$\$227.85$}

4. The final retail price will be the initial price + the mark-up:

280+280(0.75)=\fbox{$\$490$}.

5 0
3 years ago
Read 2 more answers
Please help due soon :)
pickupchik [31]
I’m pretty sure the answer is b because the triangles are congruent
3 0
3 years ago
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