2 years ago

Twice a first number decreased by a second number is 22. The first number increased by four times the second number is - 7.

Mathematics

1 answer:

AnnZ [28]2 years ago

8 0

Answer:

Step-by-step explanation:

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X 8. 13 Solve for enter the number only)

leva [86]

The answer I got was 7

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2 years ago

Mount St. Helen’s is 2549.652 meter above sea level. What is Donald he height in feet ( 1 foot=.3048 meters)

galben [10]

Answer: 8365 meters.

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

1. You have the following information given in the exercise:

- Mount St. Helen’s is 2549.652 meter above sea level.

- 1 foot=0.3048 meters

2. Let's call x the height in feet, therefore, you have:

$x=\frac{(1ft)(2549.652m)}{0.3048m}\\x=8365m$

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2 years ago

What is the surface area of the box? use your answer to problem 2 to write an equation

sammy [17]

Answer:

S=2lw+2lh+2wh

Step-by-step explanation:

If we consider the structure of a box with length l, width w, and height h, we may note that it is formed from six rectangular faces. The bottom and top faces are rectangles with sides of length l and w. Two of the side faces have side lengths l and h. And the remaining two side faces have side lengths w and h.

As the area of a rectangle is the product of its side lengths, we can put this together to get the surface area S of the box as

S=2lw+2lh+2wh

8 0

3 years ago

What is 5 to the 9th power over 5 to the 3rd power?

ELEN [110]

Answer:

15,625

Step-by-step explanation:

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2 years ago

Read 2 more answers

Solve the equation on the interval [0,21). 5 cos x - V3 = 3 co cos x

WARRIOR [948]

Answer:

x=π/6, 11π/6

Step-by-step explanation:

5 0

2 years ago