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3 years ago

10(2.19 – 2) + (7.59 + 18)

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

8 0

Answer:

27.49

Step-by-step explanation:

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Ursula has 1/2 cup of butter she uses 1/4 of it to make a batch of brownies how many batches can she make with 1/2 cup of butter

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3 years ago

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irga5000 [103]

Answer:

x = 20°

Step-by-step explanation:

Since BD = CD then Δ BCD is isosceles and its base angles are congruent, so

∠ CBD = ∠ BCD = 80° , then

∠ BDC = 180° - (80 + 80)° = 180° - 160° = 20°

∠ ADC = 180° - (80 + 60)° ← sum of angles in triangle

∠ ADC = 180° - 140° = 40° , then

∠ BDC + x = 40°

20° + x = 40° ( subtract 20° from both sides )

x = 20°

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3 years ago

What is the perimeter of 3/8 3/8 and 4/8

Yakvenalex [24]

If it is a triangle it is 1 1/4.
3/8+3/8+4/8= 10/8
Simplify to 1 2/8 and it can be simplified again to 1 1/4

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3 years ago

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Dmitry_Shevchenko [17]

Answer:

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2 years ago

If BD = 4, AD = x-6, and CD = x, what is the length of CD?

emmainna [20.7K]

Answer:

The length of CD is 8 units

Step-by-step explanation:

<u><em>The complete question in the attached figure</em></u>

we know that

According to the Right Triangle Altitude Theorem,

$(BD)^2 = (AD)(CD)$

substitute the given values

$(4)^2 = (x-6)(x)$

$16=x^2-6x\\x^2-6x-16=0$

solve the quadratic equation by graphing

The solution is x=8 or x=-6

see the attached figure N 2

Discard the negative length.

therefore

The length of CD is 8 units

8 0

3 years ago

10(2.19 – 2) + (7.59 + 18)​

10(2.19 – 2) + (7.59 + 18)