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alex41 [277]
2 years ago
11

Pls help if you can Thx!

Mathematics
2 answers:
k0ka [10]2 years ago
8 0

Answer:

The Answer Is E!

Step-by-step explanation:

To solve this equation., you have to try every solution and the only one that perfectly completes both statements is answer E.

We subtract the $1.15 from $2.10 if this is the price of one taco, leaving the price of a small cup of coffees price     ($2.10-$1.15=$0.95 for a small cup of coffee

To check it fits both statements, we multiply the price of one coffee  by 3 ()$0.95×3=$2.85 for three small coffees\

Next, we multiply $1.15 (one taco) by 2 to fill in the expression  ($1.15×2=$2.30)

Finally, we add both the prices of the 3 coffees and two tacos which adds up to a perfect $5.15, justifying the answer

N76 [4]2 years ago
6 0

GIVEN:

Cost of a taco and a cup of tea = $2.10

  • x + y = 2.10 ...(1)

Cost of 2 tacos and 3 cup of tea = $5.15

  • 2x + 3y = 5.15 ...(2)

ANSWER:

On solving eq(1), we get

  • x = 2.10 – y

Substitute the value of x in eq(2), we get

  • 2(2.10 – y) + 3y = 5.15
  • 4.20 – 2y + 3y = 5.15
  • y = 5.15 – 4.20
  • y = 0.95

So, x = 2.10 – 0.95

  • x = 1.15

Hence, Cost of a taco is $1.15

So, <u>Correct choice</u> - [E] $1.15

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Step-by-step explanation:

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3 years ago
F(x) = 4x² – 17x+3
Svet_ta [14]

Answer:

discriminant: 241

2 real roots

Step-by-step explanation:

The discriminant is the part of the quadratic equation that is under the sqare root

x=(-b±√(b²-4ac))/2a

discriminant: b²-4ac

We also know that a quadratic equation is in the form ax²+bx+c = 0, so we can plug in the values we know from our equation to find the discriminant.

a=4

b=-17

c=3

(-17)^2-4(4)(3)

We also know that if the discriminant

is positive we have 2 real roots

is 0 we have 1 real root aka a repeated real solution

is negative we have no real roots

8 0
3 years ago
Katrina drove 250 miles in 4 hours. How many miles did she drive in 1 hour? HELP ME FAST PLS ILL LOVE U FOREVER &lt;3
tatuchka [14]

Answer:

62.5 miles per hour

Step-by-step explanation:

All you have to do is divide 250 miles by 4 hours, to get the unit rate of miles per hour. I hope this helps :)

3 0
3 years ago
PLZ HELP! VERY URGENT!<br> A line passes through (6,3), (8,4), and (n,-2). Find the value of n.
Phantasy [73]

We have a line passing through 3 points. We can use the first
two points to find the equation of the line.
(6,3), (8,4)

slope m = (4-3)/(8-6) = 1/2

We can use the point slope form y-y1 = m(x-x1) or
the slope intercept form y = mx + b
to find the equation of the line.

Let's take the point (6,3) and use y = mx + b to find b
y = 3, x = 6, m = 1/2

3 = (1/2)(6) + b
3 = 3 + b
0 = b

The equation of our line is y = (1/2)x

We have a line of equation y = (1/2)x going through point (n,-2)

Plugging in we have: -2 = (1/2)n
2(-2) = n
-4 = n

Your answer is n = -4

NOTE: looking at the 3 points as given initially: (6,3), (8,4), (n,-2)
We can see that 3 = (1/2)6 and 4 = (1/2)8 so -2 = (1/2)n makes sense

Hope this helps you :)
5 0
4 years ago
Read 2 more answers
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