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3 years ago

Convert: 76.8°F = ________ °C

Mathematics

1 answer:

kirill [66]3 years ago

4 0

It’s 24.88889 Celsius.

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1. Sarah and Emily are each saving money. Sarah starts with $50 in her savings account and adds $10 per week. Emily starts with

Sunny_sXe [5.5K]

Answer:

1) sarah has $100 in her bank account after 5 weeks ans Emily has $95, so Sarah has more.

2)After 6 weeks they will both have $110

Step-by-step explanation:

7 0

3 years ago

Which would be an equivalent way to write y=2−3x?

Ipatiy [6.2K]

Some are
y-2=-3x
y+3x=2
3x=2-y

6 0

3 years ago

Read 2 more answers

Pls help quick 10 points

scZoUnD [109]

Answer:

6.86 to 2DP.

Step-by-step explanation:

7/12 = 4/DC

Cross multiply:

7DC = 4*12

DC = 48/7

= 6.857.

8 0

3 years ago

Read 2 more answers

The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past

galina1969 [7]

Complete Question

The complete question is shown on the uploaded image

Answer:

1 ) The correct option B

2) The correct option is C

3) The correct option is C

4) The correct option is C

Step-by-step explanation:

From the question we are told that

The proportion that own a cell phone is $p = 0.90$

The sample size is n = 15

Generally the appropriate distribution for X is mathematically represented as

$X \ is \ B( n , p )$

$X \ is \ B( 15 , 0.90 )$

Generally the number students that own a cell phone in a simple random sample of 15 students is mathematically represented as

$\mu = n * p$

$\mu = 15 * 0.90$

$\mu = 13.5$

Generally the standard deviation of the number of students who own a cell phone in a simple random sample of 15 students is mathematically represented as

$\sigma = \sqrt{ n * p * q }$

Where q is mathematically evaluated as

$q = 1- p$

$q = 1- 0.90$

$q = 0.10$

$\sigma = \sqrt{ 15 * 0.90 * 0.10 }$

$\sigma = 1.16$

Generally the probability that all students in a simple random sample of 15 students own a cell phone is mathematically represented as

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * p^{15} * q^{15 - 15}$

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * (0.90)^{15} * (0.10 )^{15 - 15}$

From the combination calculator is $\left 15} \atop {}} \right.C_{15} = 1$

$P(X = 15) = 1 * 0.205891 * 1$

$P(X = 15) = 0.206$

7 0

3 years ago

The ratio of blue to yellow is 4:5 and there are 15 yellow how many blue is there?

KATRIN_1 [288]

Answer: 12 blue marbles

Step-by-step explanation: Set up a proportion.

4/5 = x/15

Solve for x, the number of blue marbles. Cross multiply. You will get 60 = 5x

Divide by 5 on each side.

x = 12

There are 12 blue marbles.

7 0

3 years ago