All categories

4 years ago

I need help going through the steps of a problem please tell steps and not just answer

Mathematics

1 answer:

mezya [45]4 years ago

4 0

Answer:

x = 5/7

Step-by-step explanation:

4 (0.25 - 2) = x - 0.75 (16 - 8x)

1 - 8 = x - 12 + 6x

1 - 8 + 12 = x + 6x

5 = 7x

5/7 = x

You might be interested in

How do I solve this?

Sindrei [870]

Answer:

Set up the problem like a ratio by using fractions.

Step-by-step explanation:

For every 3oz it costs $10, and you're trying to find out the amount you can get for $15.

If you set up 3/10 = x/15, you can solve for x by multiplying 3 and 15 together, giving you 45. After that, you divide 45 by 10 and you will get the answer 4.5

5 0

3 years ago

A ball thrown in the air vertically from ground level with initial velocity 37 m/s has height h(t) = 37t − 4.9t2 m at time t (in

Nesterboy [21]

Answer:

46.57

Step-by-step explanation:

Given that:

h(t) = 37t - 4.9t²

When the ball reaches the ground, then the height is zero;

So, we equate h(t) to zero and solve for t

37t - 4.9t² = 0

t = 0, 7.55

Let the Initial time be a = t = 0

The time the ball reaches the ground be b = 7.55

So, the average height can now be calculated as:

Average height = $\frac{1}{b-a}\int\limits^b_a {h(t)} \, dt$

= $\frac{1}{7.55-0}\int\limits^{7.55}_0 (37t-4.9^2) dt$

= $\frac{1}{7.55-0}\ (\frac{37(7.55)^2}{2} - \frac {4.9(7.55)^3}{3})$

= $\frac{1}{7.55-0}\ (351.6104208)$

= 46.57091665

≅ 46.57 to (2 decimal places)

6 0

3 years ago

What’s the correct answer for this?

Pavlova-9 [17]

Answer: choice B

Step-by-step explanation:

Events A and B are independent if the equation P(B)=P(B|A) or P(A∩B) = P(A) · P(B) holds true.

in this example

p(A)=1/6 {5}

p(B)=1/2 {1,3,5}

P(B|A)=1

P(B)≠P(B|A)

=>A and B are dependent

8 0

4 years ago

EVELYN HAD 9 DOLLS, BUT SHE LOST 1/3RD OF THEM AT DAYCARE. HOW MANY TOTAL DOLLS WOULD EVELYN HAVE HAD IF SHE HAD NOT LOST THEM?

Elanso [62]

Answer:

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

Step-by-step explanation:

As given,

Total dolls Evelyn had = 9

Total dolls lost = $\frac{1}{3}$ × 9 = 3

So, Now

Evelyn had total dools after lost = 9 - 3 = 6

If she had not lost te dolls , then she had 3 dolls more

∴ we get

If she had not lost any dolls , Evelyn had total dolls = 6 + 3 = 9

So, The answer would be :

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

3 0

3 years ago

What does 6÷3/4 equal

alex41 [277]

Answer:

Step-by-step explanation:

When you divide by a fraction, you can also say that you are multiplying by the reciprocal.

So $6/\frac{3}{4}=6*\frac{4}{3}$

$6=\frac{6}{1}$

$\frac{6}{1}*\frac{4}{3}=\frac{24}{3}=8$

4 0

4 years ago

Read 2 more answers