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3 years ago

It cost Tristan $5.60 to send 112 text messages. How much would it cost to send 87

Mathematics

2 answers:

Serggg [28]3 years ago

8 0

Answer: $4.35

Step-by-step explanation:

Stolb23 [73]3 years ago

6 0

it’s approximately $0.05 per text message

so .05 * 87 is

$4.35

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Use the quadratic formula to solve the equation x^2-7x-6=0

olganol [36]

Answer:

$\frac{7\pm\sqrt{73}} {2}$

Explanation:

We have been given with the quadratic equation $x^2-7x-6=0$

We have general formula to find the roots of a quadratic equation first we find the discriminant with formula

$D=b^{2}-4ac$

and after that to find the variable suppose x we have the formula

$x=\frac{-b\pm\sqrt{D}} {2a}$

And general quadratic equation is

$ax^2+bx+c=0$

On comparing the given quadratic equation with genral quadratic equation we will have values

a=1, b=-7 and c=-6

After substituting these values in the formula we will get

$D=(-7)^2-4(1)(-6)={73}$

After substituting in the formula to find x we will get

$\frac{-(-7)\pm\sqrt{73}} {2}= \frac{7\pm\sqrt{73}} {2}$

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3 years ago

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An ice cream factory makes 170 quarts of ice cream in 2 hours how many quarts could be made in 36 hours what was that rate per d

Katyanochek1 [597]

170 quarts/2 hours = 85 quarts/hour

85 quarts/hour * 36 hours = 3060 quarts

85 quarts/hour * 24 hours = 2040 quarts

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3 years ago

Estimate each product.solve to check your estimate.40×6

Fed [463]

Well 40 times 6 is 240 which means that you don't have to round.

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3 years ago

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HELPS PLS ryad borrowed $1450 and made 18 payment of $95.25 how much did he pay in interest?

BaLLatris [955]

First calculate total payments
18×95.25=1,714.5

After that to find the interest you just subtract the amount borrowed from the total payments
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Hope it helps!

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3 years ago

What is the best approximation of 6% tax on a $102 purchase? A) $6 B) $12 C) $18 D) $24

larisa [96]

Here, On Approximation, Just consider $102 as $100

Then, 6% of 100 would be: $6

In short, Your Answer would be: Option A

Hope this helps!

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3 years ago