3 years ago

#Homework Help Please

Mathematics

2 answers:

Snezhnost [94]3 years ago

7 0

Answer:

can you take a picture of the options?

Step-by-step explanation:

ira [324]3 years ago

7 0

You gotta show the options bro

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Find the value of x if the measures of the interior angles of a pentagon are 5x®, 10X, 10X°, 10x°, and 10X°.

fomenos

Answer:

is 1 i think

Step-by-step explanation:

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3 years ago

How many solution are there to the equation below -46=3×+7

Archy [21]

Answer:

Only one

Step-by-step explanation:

46=3x+7 /-7

39=3x /:3

13=x

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3 years ago

If a 12-student class averaged 90 on a test, and a 20-student class averaged 80 on the test, then all 32 students averaged

Alexxx [7]

Let the marks of the students in class 1 be

$m_1, m_2, ....., m_1_2$

the average of these 12 marks is 90, so

$\frac{m_1+ m_2+ .....+ m_1_2}{12}=90$

which means

$m_1+ m_2+ .....+ m_1_2=90*12=1080$

similarly, let $n_1, n_2, ....., n_2_0$ be the marks of the students in the second class,

so $\frac{n_1+ n_2+ ..... n_2_0}{20}=80$

which means $n_1+ n_2+ ..... n_2_0=80*20=1600$

The 32 students averaged:

$\frac{(m_1+ m_2+ .....+ m_1_2)+(n_1+ n_2+ ..... n_2_0)}{12+20}= \frac{1080+1600}{32}= \frac{2680}{32}= 83.75$

5 0

4 years ago

Read 2 more answers

Find the volume of this.<br> Show work.

Yuri [45]

Answer: 471.24 (with 3.14 as pi)

Step-by-step explanation:

Volume of cylinder = pi*r^2*height

Radius = 10/2 = 5

Pi*25^2*6 = 471.24

6 0

3 years ago