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alexira [117]
3 years ago
11

Please answer correctly !!!! Will mark brainliest !!!!!

Mathematics
1 answer:
7nadin3 [17]3 years ago
8 0
Hi there!

f(x) = − 4x/5 − 8/5

Hope this helps !
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The sum of two numbers is 90. The larger number is 14 more than 3 times the smaller number. Find the numbers
e-lub [12.9K]

Answer:

The numbers are 19 and 71.

Step-by-step explanation:

Let x and y represent the two numbers.  Then x + y = 90.  

Also, if we assume that the larger number is y, then y = 3x + 14.

We must solve this system of linear equations.  Since we already have the result of solution for y  (y = 3x + 14), let's use the substitution method to find the solution:

x + y = 90 becomes x + 3x + 14 = 90, or:

4x = 76.  Thus, x = 76/4, or 19.       If x = 19, then y = 3(19) + 14, or y = 71.

The numbers are 19 and 71.

Note that these add up to 90, as they must, and that 71 is 14 more than 3 times 19.

7 0
3 years ago
21% of the students at a High are in Maths group, 15 % are in science group, and 6 % are in both. If a student is selected rando
mihalych1998 [28]

Answer:

6%

Step-by-step explanation:

The probability of picking a maths student = 21% = 21/100

The probability of picking a science student = 15% = 15/100 = 3/20

The probability of picking in both = 6/100 = 3/50

The probability that the student is in maths or science = 21/100 - 15/100 = 6/100 = 6%.

4 0
3 years ago
Write each mixed number as m/n in simplest form where m/n are integers 7 7/9
Svetach [21]
70/9

7 is equivalent 63/9, and then you add 63 and 7 to get 70/9
6 0
4 years ago
One-third of the candidates for a job were 25 years old or younger. Two-sevenths of the candidates were at least 50 years old. I
Elza [17]

Answer:

1/3 * 84 = 28 were under 25

2/7 * 84 = 24 were at least 50

28 + 24 = 52

84-52 = 32 were between 25 and 50

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP SUPER EASY GRAPHING PROBLEM WILL MARK BRAINLIEST
Sever21 [200]
X is 3 and the y is 6
6 0
3 years ago
Read 2 more answers
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