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MakcuM [25]
3 years ago
6

How do I solve this problem

Mathematics
1 answer:
Korvikt [17]3 years ago
3 0

Answer:

x=7

Step-by-step explanation:

13x-1 and the right angle are vertical angles, so they are equal

13x-1 = 90

Add 1 to each side

13x-1+1 =90+1

13x = 91

Divide by 13 on each side

13x/13 = 91/13

x = 7



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Tina will roll the cube, spin the spinner, and flip the coin one time each to form an outcome.
Maksim231197 [3]

Answer:

3

Step-by-step explanation:

A cube will have six sides, therefore the numbers would run from 1 to 6 on a cube. There are only 3 numbers after 3 up until 6. So it is 3.

3 0
3 years ago
Please help me with this on the picture
Salsk061 [2.6K]

<u>Answer:</u>

5, 7

<u>Step-by-step explanation:</u>

The mode of the numbers is 5, which means that 5 should be the most common card (highest frequency). Therefore the cards should have at least one more 5 among them.

Considering that 5 is one of the hidden cards and x is the other,

• Using the equation for the mean:

mean = \frac{sum \space\  \space\ of \space\  \space\ numbers}{number \space\  \space\ of \space\  \space\ numbers}

6 = \frac{4+5+ 9 + 5 + x}{5}

⇒ 30=23 + x

⇒ x = 7

This means 5 and 7 are the hidden cards.

3 0
2 years ago
The Li family is going hiking. The distance from their car can be found using the function d(t) = 3t + 1, where d is the miles a
Sauron [17]

Answer:

A

Step-by-step explanation:

d(t)=3t+1 but d(t)=7

distance*time=3*time+1

so d(t)=7 is the same as

d(t)=3(2)+1

meaning that you hiked for 2 hours.

5 0
3 years ago
Prove that given any three consecutive integers, one of them is divisible by 3. Hint: What are the possible remainders when we d
juin [17]

Answer:

it is proved that from the any three consecutive integers one of them is divisible by 3.

Step-by-step explanation:

Let the first integer = x

The second  consecutive integer = x + 1

The third consecutive integer = x + 2

Case 1. take x = 1

The value of first integer = 1

The value of second integer = 1 +1 = 2

The value of third integer = 1 + 2 = 3

Here the third integer is divisible by 3.

Case 2. take x = 2

The value of first integer = 2

The value of second integer = 2 +1 = 3

The value of third integer = 2 + 2 = 4

Here the second  integer is divisible by 3.

Case 3. take x = 3

The value of first integer = 3

The value of second integer = 3 +1 = 4

The value of third integer = 3 + 2 = 5

Here the first  integer is divisible by 3.

Thus it is proved that from the any three consecutive integers one of them is divisible by 3.

8 0
3 years ago
The cost of health insurance is $900 per month. The cost of an operation for a dramatic injury is $500,000. The chances of someo
lord [1]

Answer:

Yes, It is better to buy the insurance.

Step-by-step explanation:

Given Data:

Cost of Health Insurance for a month = 900$ per month

As 20 Years = 20*12 months = 240 months

Cost of Health Insurance for 20 years = 900 * 240

Cost of Health Insurance for 20 years = 216,000$

Insurance claim in case of having dramatic injury = Cost of Dramatic Injury = 500,000$

Insurance claim in case of having no dramatic injury = 0$

Chances of dramatic injury in 20 years = P(A) = 47.3%

Chances of not having dramatic injury in 20 years = P(B) = 100% - 47.3%

Chances of not having dramatic injury in 20 years = P(B) = 52.7%

Expected Insurance Claim for 20 years:

Expected Insurance Claim for 20 years = (Chances of having dramatic injury in 20 years * Insurance claim) + (Chances of not having dramatic injury * Insurance claim)

Expected Insurance Claim for 20 years = P(A) * 500,000$ + P(B) * 0$

Expected Insurance Claim for 20 years = 47.3% * 500,000 + 52.7% * 0

Expected Insurance Claim for 20 years = 236500 + 0

Expected Insurance Claim for 20 years = 236,500$

Expected Profit:

As expected insurance claim is 236,500$ is more than the cost of health insurance for 20 years and we are expected to have profit of 20,500$, thus we should take the health insurance.

3 0
3 years ago
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