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2 years ago

Solve a/-1.2 = -0.4. a=?

Mathematics

1 answer:

adell [148]2 years ago

6 0

Answer:

a = 0.48

Step-by-step explanation:

Multiply all terms by the same value to eliminate fraction denominators

then simplify

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Find two numbers whose ratio is 3:7 and whose sum is 150

mr Goodwill [35]

$3x-first\ number\\7x-second\ number\\\\3x+7x=150\\10x=150\ \ \ \ \ |:10\\x=15\\\\3\cdot15=45\\7\cdot15=105\\\\Searched\ number\ are\ 45\ and\ 105$

6 0

3 years ago

At 3:30 in the afternoon in mid-September the Kimball Tower casts a shadow about 290 feet long when the sun's rays come down at

ioda

Answer:

203 feet.

Step-by-step explanation:

Please find the attachment.

Let h represent the height of the building.

We have been given that at 3:30 in the afternoon in mid-September the Kimball Tower casts a shadow about 290 feet long when the sun's rays come down at an angle about 35 degrees above the horizontal.

We know that tangent relates opposite side of a right triangle to its adjacent side.

$\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}$

Upon substituting our given values in above formula, we will get:

$\text{tan}(35^{\circ})=\frac{h}{290}$

$290*\text{tan}(35^{\circ})=\frac{h}{290}*290$

$290*0.70020753821=h$

$h=290*0.70020753821$

$h=203.0601860809$

$h\approx 203$

Therefore, the building is approximately 203 feet high.

3 0

3 years ago

Solve using long division (x² – 3x - 40) + (x+5)

wolverine [178]

The chosen topic is not meant for use with this type of problem.

However, if you simplify it, your answer is:

x^2 − 2x − 35

4 0

2 years ago

Read 2 more answers

PLEASE HELP DUE NOW!!! WILL MARK BRAINLIEST!!!

Ulleksa [173]

Answer: -10, 10

Step-by-step explanation:

first lets add the two equations. add the x's, add the y's, add the constants on the right.

we get

0x - 1y = -10

so then divide --10 by -1 because we do the opposite operations to both sides

and we get y = 10

now substitute y = 10 into the first equation

-10x - 9(10) = 10

and then we get -10x - 90 = 10

now add 90 to both sides

-10x = 100

divide 100 by -10

x = -10

y = 10

checks out

EPIC. STAY EPIC AND AWESOME FRIEND.

3 0

2 years ago

23 (12v + 5) 95 Need help!

IgorC [24]

doo

doooo doooooooo

Step-by-step explanation:

7 0

3 years ago