All categories

2 years ago

Please help will give brianliest

Mathematics

2 answers:

kipiarov [429]2 years ago

8 0

1/4 hoped this helped you

Romashka-Z-Leto [24]2 years ago

4 0

Answer: 1/4

Work Shown:

$\frac{3}{2}+ b = \frac{7}{4}\\\\b = \frac{7}{4} - \frac{3}{2}\\\\b = \frac{7}{4} - \frac{6}{4}\\\\b = \frac{7-6}{4}\\\\b = \frac{1}{4}\\\\$

This is equivalent to 0.25 in decimal form.

You might be interested in

A university is conducting a survey to study the number of hours students sleep at night during exam week. A sample of 20 studen

Ronch [10]

1. To calculate the mean, we first total the number of hours: The 20 students' total number of study hours is 118.5 hours.
2. We divide by the number of samples to find the mean: The sample mean is 5.93.
3. Next, we find the SD: Calculate the standard deviation.
4. Then we divide SD by the number of samples to get the standard error: the standard error of the mean of the sample is 0.45.
5. Since for a 95% CI, the corresponding z-score is 1.96 ~ 2, we use the formula for CI: mean +/- z*SE, which is: The range in which 95% of the sample mean occurs is 5.93 + 2 × 0.45 = 6.83 hours and 5.93 − 2 × 0.45 = 5.03 hours.
6. Finally: The range in which 95% of the sample mean occurs is (5.03, 6.83).

4 0

3 years ago

What is the equation of the line that is perpendicular to the

lawyer [7]

What line? You are not giving a full question. No one would be able to help you. Sorry.

3 0

3 years ago

Can someone explain this tree diagram for me? I understand why it’s 0.7 and why it’s 0.3 but what I don’t understand why it’s 0.

borishaifa [10]

Answer:

66% have graduated within five years.

Step-by-step explanation:

It is given that 70% of freshmen went to public schools. Then the rest 30% i.e., $\frac{30}{100} = 0.3$ should have gone to other schools.

Now, the number the freshmen in public schools is considered as 100% or 1.

60% of the freshmen from public schools have graduated means out of the total freshmen from public schools, 60% of them have graduated. That is why it is denoted as 0.6 and those not graduated as 0.4.

Note that 60% of total students have graduated.

Let us assume there were 100 students initially. Then 70 students went to public school. Number of students graduated = 60%

$\implies \frac{60}{100} \times 70 = 42$

That is 42 students have passed from public school.

Now, the ones in other schools:

80% of them have graduated in other schools. That means out of total students 80% of them have graduated.

That means $\frac{80}{100} \times 30 = 24$

24 students from other schools have passed.

Therefore, totally 66 students have passed. i.e., 66 percent have passed.

5 0

4 years ago

A restaurant manager wants to purchase 200 sets of dishes. one design costs $15 per set, while another costs $55 per set. if

vivado [14]

Hello,

Let's solve this problem mathematically.

For first design...

$f = 200 \times 15 = 3000$

For second design...

$s = 200 \times 55 = 11000$

To use an entire budget for design she must order.

For first design

5800÷3000 = 1.93f

or
For second design

5800÷11000=0.52s

Hope this helps answer your question!
r3t40

5 0

3 years ago

Scan the n the questions loading 165464775250023655713488 63

snow_tiger [21]

Answer:

what man we can barley see

Step-by-step explanation:

5 0

2 years ago