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suter [353]
2 years ago
13

PLEASE HELP ASSP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111

Mathematics
2 answers:
PilotLPTM [1.2K]2 years ago
6 0
Expand the brackets
5t+15=-3.5
move values to the other side
5t=11.5
t=2.3
natka813 [3]2 years ago
4 0

Answer:

2.3

Step-by-step explanation:

Your beginning equation is 5 (t + 3) = -3.5. You start by dividing by 5. This leaves you with t + 3 = 0.7. If you add 3 you get 2.3

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Of the 50 students in the cafeteria, 7 have red hair. Suppose there are 750 students in the school. Write a proportion that coul
gulaghasi [49]

Given:

Of the 50 students in the cafeteria, 7 have red hair.

Total number of students = 750

To find:

The proportion that could be used to predict the number of students who have red hair.

Solution:

Let x represent the number of students who have red hair.

The ratio of student having red hair to the total number of students are

Ratio_1=\dfrac{7}{50}

Ratio_2=\dfrac{x}{750}

The number of students having red hair is proportional to the total number of students. So, the above ratios are equal.

\dfrac{x}{750}=\dfrac{7}{50}

Multiply both sides by 750.

\dfrac{x}{750}\times 750=\dfrac{7}{50}\times 750

x=7\times 15

x=105

Therefore, the required equation is \dfrac{x}{750}=\dfrac{7}{50} and the number of students who have red hair is 105.

7 0
3 years ago
Need help asap will give brainly
iris [78.8K]

Answer:

<em><u>x = 60 </u></em>

Step-by-step explanation:

<em>So, ever triangle, no matter what shape or size, is always going to equal 180 degrees. You start off by trying to find angle L which is 71. The way you find this is you subratch 109 from 180 which ultimately gives you 71.</em>

180 - 109 = 71

<em>After that you have to add what you already have (49 degrees) with what you just found (71 degrees)</em>

49 + 71 = 120

<em>Now that you have 120, you have to again subtract 180 by 120 to get your answer, 60 degrees. And that's it. </em>

180 - 120 = 60

8 0
2 years ago
Carey has 30 CDs and wants to take pick out 5 to put into her CD player. How many different combinations of CDs can she pick out
Solnce55 [7]
The correct answer is C(30,5)
<span>
That's because you have to know factorials and apply the formulas to find out that:
30! / [5!(30 - 5!)]
30! / (5! * 25!), which means that there are </span>142506 combinations, or C(30,5)


3 0
3 years ago
Read 2 more answers
In the diagram below, what is the approximate length of the minor arc DE?
likoan [24]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Please answer as soon as possible!!
harkovskaia [24]

Answer:

2.29

Step-by-step explanation:

First determine the square root of 17.8

√17.8 = 4.22

second, determine the value of 1.3^{2.5} = 1.93

subtract 1.93 from 4.22

4.22 - 1.93 = 2.29

6 0
3 years ago
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