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2 years ago

15

Brenna needed 8 gallons of gas last week. This week, Brenna ended up needing 50% less. How much gas is that? Please answer quick

ly.

1 answer:

algol [13]2 years ago

6 0

Answer:

4

Step-by-step explanation:

You might be interested in

Jake is solving x^2-6x+5=0 by completing the square his steps are shown below step 1. x^2-6x=-5 step 2. x^-6x+9=-5+9 step 3. (x-

damaskus [11]

Answer:

Jake's error in step 3

Step-by-step explanation:

we have

$x^{2} -6x+5=0$

Complete the square

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} -6x=-5$

step 2

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} -6x+9=-5+9$

$x^{2} -6x+9=4$

step 3

Rewrite as perfect squares

$(x-3)^{2}=4$

Jake's error in step 3

He placed 6 instead of 3 in the left side

step 4

take square root both sides

$\sqrt{(x-3)^2} =\sqrt{4}$

step 5

$(x-3)=\pm2$

step 6

$x=3\pm2$

step 7

x=5 and x=1

7 0

3 years ago

5(-42/-7) + (-15) - (-3)

siniylev [52]

Answer:

2058

Step-by-step explanation:

8 0

2 years ago

Factor completely.

antiseptic1488 [7]

Answer:

B

Step-by-step explanation:

Given

y² - 12y + 32

Consider the factors of the constant term (+ 32) which sum to give the coefficient of the y- term (- 12)

The factors are - 4 and - 8, since

- 4 × - 8 = 32 and - 4 - 8 = - 12, thus

y² - 12y + 32 = (y - 4)(y - 8) → B

6 0

3 years ago

Read 2 more answers

16. A triangle has side lengths of 6, 8, and 10. Is it a right triangle? Explain. (2 points)

timurjin [86]

Answer:

Yes, because when the side lengths of a triangle are in the ratio 3: 4: 5, then it is a right triangle. These sides are 6: 8: 10, then the triangle is a right one.

Step-by-step explanation:

7 0

2 years ago

1/8 + c = 4/5 <br><br>what is c

ASHA 777 [7]

Answer:

27/40

Step-by-step explanation:

7 0

3 years ago