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3 years ago

NEED HELP !!!!!Write an equation for the following proportional relationships. ( x/y ) a. 1/2.5 b . 6/18 C. 5/22.5 d. 4/17

Mathematics

1 answer:

lutik1710 [3]3 years ago

6 0

Answer:

x=21

Step-by-step explanation:

add 11 and 11

then you will get 21

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(PLEASE HELP QUICKLY) Melanie and her children went into a grocery store and she bought $14 worth of apples and bananas. Each ap

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Answer:

6 apples and 5 bananas

Step-by-step explanation:

x + y = 11

x = 11 - y

1.75x + 0.70y = 14

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19.25 - 1.75y + 0.7y = 14

5.25 = 1.05y

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3 years ago

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Which ratios are equivalent to 3 parts silver paint to 4 parts green paint?

mestny [16]

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2 years ago

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Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If BC=10BC=10 and DC=5,DC=5, what is the le

Helen [10]

Answer: $\overline{AC}=$ 12.5

Step-by-step explanation: The triangle ABC and its altitude $\overline{BD}$ is represented in the figure below.

<u>Altitude</u> is a segment of line that link a vertex and the opposite side, forming a right angle.

So, because of $\overline{BD}$ , now we have two similar triangles, which means that ratios of corresponding sides are equal:

$\frac{\overline{BD}}{\overline{BC}} =\frac{\overline{AD}}{\overline{BD}}$

$\overline{BD}^{2}=\overline{BC}.\overline{AD}$ (1)

This is always true for a right triangle and a altitude drawn to the hypotenuse.

Triangle BDC is also right triangle. So, we can use Pythagorean theorem to determine the missing side.

$\overline{BC}^{2}=\overline{CD}^{2}+\overline{BD}^{2}$

$\overline{BD}^{2}=\overline{BC}^{2}-\overline{CD}^{2}$ (2)

Substituting (2) into (1):

$\overline{BC}^{2}-\overline{CD}^{2}=\overline{BC}.\overline{AD}$

We want to find f, so:

$\overline{AD}=\frac{\overline{BC}^{2}-\overline{CD}^{2}}{\overline{BC}}$

$f=\frac{10^{2}-5^{2}}{10}$

f = 7.5

The length of $\overline{AC}$ is

$\overline{AC}=f+5$

$\overline{AC}=7.5+5$

$\overline{AC}=12.5$

The length of the hypotenuse of triangle ABC is 12.5 units.

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2 years ago

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Help! will give brainliest!!!

Scorpion4ik [409]

Answer

Step-by-step explanation:

There were actually gaps of triangles in between the slabs and the sphere.

This could cause a decrease inthe volumes. The 2d shape is a triangle but the 3d shape is the cone.

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2 years ago

Pls, help me!

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

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2 years ago

NEED HELP !!!!!Write an equation for the following proportional relationships. ( x/y ) a. 1/2.5 b . 6/18 C. 5/22.5 d. 4/17​

NEED HELP !!!!!Write an equation for the following proportional relationships. ( x/y ) a. 1/2.5 b . 6/18 C. 5/22.5 d. 4/17