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Neko [114]
3 years ago
14

O Perímetro de triângulo isósceles mede 24cm. Qual é a medida de comprimento dos lados congruentes sabendo-se que o lado não con

gruente mede 7cm de comprimento?
Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

La longitud de los lados congruentes =

B = 8.5cm

C = 8.5 cm

Step-by-step explanation:

El perímetro del triángulo isósceles mide 24 cm.

El lado no congruente mide 7 cm de largo.

Lados congruentes significa lados que son iguales o iguales entre sí.

El perímetro de un triángulo es =

Lado A + Lado B + Lado C

Por lo tanto,

24 = 7 cm + B + C

24 - 7 = B + C

17 cm = B + C

Los dos lados son congruentes,

B = C

Por lo tanto, 17 cm / 2

= 8.5 cm

La longitud de los lados congruentes =

B = 8.5 cm

C = 8.5 cm

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field biologist collects 220 butterflies and moths. He collects 4 butterflies for every moth. How many butterflies and how many
ki77a [65]

Answer:

The number of butterflies he collects = 176

The number of moth he collects = 44

Step-by-step explanation:

This question has to do with ratio.

We are told in the question that:He collects 4 butterflies for every moth.

Hence, the ratio of

Butterflies : Moth

4 : 1

Sum of the proportion = 4 + 1 = 5

We are also told he has a total of 220 butterflies and moths.

Hence:

The number of butterflies he collects is calculated as

4/5 × 220 = 176 butterflies

The number of moth that he collects =

1/5 × 220 = 44 moth

3 0
3 years ago
Read 2 more answers
Question 21
horsena [70]

Answer:

<em>A(x) = 6x² + 26x </em>

Step-by-step explanation:

A(x) = 4x ( x + 10 ) - 2x ( 8 ) + \frac{2x(x)}{2} + \frac{2x(x+2)}{2}

A(x) = 4x² + x² + x² + 40x - 16x + 2x

<em>A(x) = 6x² + 26x</em>

7 0
3 years ago
What is the solution to this equation x/5=15<br> a.x=75<br> b.x=20<br> c.x=3<br> d.x=10
Darina [25.2K]

\dfrac{x}{5}=15\ \ \ \ |\cdot5\\\\\not5\cdot\dfrac{x}{\not5}=5\cdot15\\\\x=75

Answer: a. x = 75

8 0
3 years ago
What is 1 1/9 plus 3 5/8
Daniel [21]
I think the answer should be 4.7 but rounded up would be 5
6 0
3 years ago
Read 2 more answers
Alexa and Brent are each working on a 30-question assignment. Alexa completed 20% of the questions. Brent completed 30% of the q
Mandarinka [93]
So 20% of 30 is 6
30% * 30 is 9
Alexa completed 6 of 30 questions 
Brent completed 9 of 30 questions

Brent completed 3 more questions than Alexa

Hope this helps :)
6 0
4 years ago
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