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3 years ago

Which is the correct answer?

Mathematics

1 answer:

Olegator [25]3 years ago

7 0

D1 = r*t = 6mi/h * (12/60)h = 1.2 Miles

<span>d2 = d1 + 1.2 mi. </span>
<span>9t = 6t 1.2. Solve for t in hours.</span>

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I need help pleasee

AlexFokin [52]

Answer:

2x+3=-13

x=5

Step-by-step explanation:

it says 2 times a number which would be the 2x, and it says the sum of that and 3 which would be 2x+3 and it says is 13. 2x+3=13

now solving it

2x+3=13

subtract 3 from both sides

2x=10

and divide 2 from both sides

x=5

5 0

3 years ago

Read 2 more answers

An airplane is flying from Redville to leek.The airplane flies 50 miles East and then 180 miles South .how far is leek from Redv

r-ruslan [8.4K]

Answer:

230

Step-by-step explanation:

7 0

3 years ago

What is the answer for 17x> -7

Alex17521 [72]

Answer:

x > -7/17

Step-by-step explanation:

You first divide -7 by 17 to isolate the variable, (x).

And thats it!

8 0

4 years ago

Put the following portions in order from least to greatest 30% 1/5 75% 5/6

sertanlavr [38]

Answer:

1/5,30%,75%,5/6

Step-by-step explanation:

first turn all of them in to decimals:

1/5=0.20

30%=0.30

75%=0.75

5/6=0.83

then put the decimals in order from least to greatest

done!

8 0

3 years ago

A quadratic equation ax^2+bx+c=0 has -11 and 4 as solutions. Find the values of b and c if the value of a is 1 (hint, use zero f

Alina [70]

Answer:

b = 7, c = -44

Step-by-step explanation:

If the quadratic equation has the solutions -11 and 4, the two factors are:

$(x+11)(x-4)=0$

Since when we use the zero factor property we get

x+11=0 ⇒ x= -11

x-4=0 ⇒ x=4

Thus, we have used the zero factor property in reverse to find the factorization of the quadratic equation.

Now we develop the multiplications between parenthesis:

$(x+11)(x-4)=0\\x^2-4x+11x-44=0\\x^2+7x-44=0$

So b is the number that accompanies the x: b = 7

and c is the independent number: c = -44

3 0

3 years ago