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lara31 [8.8K]
2 years ago
13

Ion get this bro someone help I got school in a hour

Mathematics
1 answer:
worty [1.4K]2 years ago
6 0

Answer:

of Example 6

5 and 14

Step-by-step explanation:

IN EXAMPLE 6

Opposite angles are equal so you equate the first one like this

3x + 20 = 10x - 15

15 + 20 = 7x

35/7 = x

x = 5

In next question b

It is a straight line thus it's 180°

so 4n + 22 +8n -10 = 180

12n + 12 = 180

12n = 180 - 12

n =168÷ 12

n = 14

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Given m=10 and n =9 the ratio of n to m is 10/9 true or false
Marrrta [24]
False, it says n to m not m to n N to m would be 9/10
5 0
3 years ago
A battery manufacturer randomly tests 500 batteries and finds that 3 are defective.
ale4655 [162]
To find this answer, we must first find the percentage of batteries that are defective. We can do this by dividing 3 by 500.

3 / 500 = 0.006

So our percentage of defective batteries is 0.6%.

Now, to find out how many defective batteries would be in a batch of 12000, we just need to multiply the constant (percentage of defective batteries) by the amount in the new batch.

12000 * 0.006 = 72

In a shipment of 12,000 batteries, 72 will be defective, so the correct answer choice would be B.
Hope that helped =)
5 0
3 years ago
Gina opened a bank account with $40. She plans to add $20 per week to the account and not make any withdrawals. After how many w
ZanzabumX [31]

Answer:

After 33 weeks.

Step-by-step explanation:

Let w be number of weeks.

We have been given that Gina opened a bank account with $40. She plans to add $20 per week to the account and not make any withdrawals. So the balance after w weeks will be 20w+40.

To figure out number of weeks Gina will have exactly $700 in her account, we will equate the balance after w weeks to 700.

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Let us subtract 40 from both sides of equation.

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Upon Dividing both sides of our equation by 20 we will get,

\frac{20w}{20}=\frac{660}{20}

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Therefore, after 33 weeks Gina will have exactly $700 in her account, excluding interest.

6 0
3 years ago
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Nana76 [90]

Answer:

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3 0
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gladu [14]

Answer:

The answer(s) would be WY/WZ, or WYZ (If this is multiple choice)

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5 0
3 years ago
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