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3 years ago

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The results of a survey indicate 70% of seventh-graders watch at least one movie during the weekend. Based on this survey of a g

roup of 50 seventh-graders, how many will watch at least one movie this weekend?

1 answer:

marusya05 [52]3 years ago

5 0

Answer:

35 students

Step-by-step explanation:

70% of 50 = 0.7×50 = 35

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A survey of 96 students on campus showed that 29 read the Campus Observer student newspaper that morning, 24 read the news via t

77julia77 [94]

Answer:

Step-by-step explanation:

Part 1

(a) How many read the Internet news or local paper but not both?

There are 25

students who read the Internet news or local paper but not both.

Part 2

(b) How many read the Internet news and the local paper but not the Campus Observer?

There are 3

students who read the Internet news and the local paper but not the Campus Observer.

Part 3

(c) How many read the Internet news or the Campus Observer or both?

There are 65

students who read the Internet news or the Campus Observer.

6 0

3 years ago

M+2/3=1/4m-1<br><br><br>what the formula used to find the value of m?

zimovet [89]

<u>Answer:</u>

The value of m is $\frac{-5+\sqrt{34}}{6} \text { or } \frac{-5-\sqrt{34}}{6}$ by using quadratic formula

<u>Solution:</u>

Given, expression is $m+\frac{2}{3}=\frac{1}{4 m}-1$

Now, we have to solve the above given expression.

$\text { Now, } \mathrm{m}+\frac{2}{3}=\frac{1}{4 m}-1$

By multiplying the equation with m, we get

$\begin{array}{l}{m^{2}+\frac{2}{3} m+m=\frac{1}{4}} \\\\ {m^{2}+m\left(\frac{2}{3}+1\right)=\frac{1}{4}} \\\\ {m^{2}+\frac{5}{3} m=\frac{1}{4}}\end{array}$

$\begin{array}{l}{12 m^{2}+20 m=3} \\ {12 m^{2}+20 m-3=0}\end{array}$

Now, let us use quadratic formula

$\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here in our problem, a = 12, b = 20, c = -3

$\begin{array}{l}{m=\frac{-20 \pm \sqrt{20^{2}-4 \times 12 \times(-3)}}{2 \times 12}} \\\\ {=\frac{-20 \pm \sqrt{400+144}}{24}} \\\\ {=\frac{-20 \pm \sqrt{544}}{24}} \\\\ {=\frac{-20 \pm 4 \sqrt{34}}{24}=\frac{-5 \pm \sqrt{34}}{6}} \\\\ {=\frac{-5+\sqrt{34}}{6} \text { or } \frac{-5-\sqrt{34}}{6}}\end{array}$

Hence the value of m is $\frac{-5+\sqrt{34}}{6} \text { or } \frac{-5-\sqrt{34}}{6}$ by using quadratic formula

7 0

3 years ago

What is the value of 2x if 5x-15=25??

kirill115 [55]

Answer:

16

Step-by-step explanation:

5x-15=25

x=40÷5

x=8

2x=2*8=16

6 0

3 years ago

What is Lowry’s purpose for including the scene with the pill?

notsponge [240]

What are the answers but I think it becauenhe woudny get pregnant

8 0

3 years ago

Just help with the question ignore everything below

timurjin [86]

Answer:$1.50 or a dollar and 50 cents

Step-by-step explanation:pls mark me brainliest

5 0

2 years ago

Read 2 more answers