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rodikova [14]
3 years ago
8

The sum of two number is 19, and their difference is 1. Let x be the larger number and y be the smaller number. Write the first

equation
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0
X= 10 y= 9 the difference between the two numbers is one and they equal 19
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Joselyn is a manager at a sign-painting company. She has two painters, Allen and Brianne. Allen can complete a large project in
guajiro [1.7K]

Answer:

8.47 Hours

Step-by-step explanation:

Allen can take 16 hours, while 

Brianne can take 18 hours;

Therefore, in 1 hour Allen will complete a fraction of 1/16, while

in 1 hour Brianne will complete a fraction of 1/18

When working together, in 1 hour they will complete a fraction of (1/18+1/16)

=  17/144,

Therefore; to complete the whole project working together, they will take;

144/17 = 8.47 hours


7 0
3 years ago
A)- 5x-9<br> b)- 6x+20<br> c)- 6x^2-23x+20<br> d)- 6x^2-14-9
likoan [24]
Multiply:  (3x-4)(2x-5)

This comes out to 6x^2 - 15x - 8x + 20

Combine the x terms and you'll be done.


6 0
3 years ago
Lee scored 91 points on a math testOn the next test, she scored 13 fewer pointsOn the third test, she scored 92What is the diffe
max2010maxim [7]

Answer:

14 points

Step-by-step explanation:

The second test Lee did was 13 points fewer than the first test, which was 91 points, so the second test's score is 91 - 13 = 78 points.

The third test had the score of 92, so this is the highest score, and the lowest score is the second one: 78 points.

The difference between Lee's highest and lowest scores is:

92 - 78 = 14 points

4 0
3 years ago
Professor Goodheart has two exams, exam 1 and exam 2. The exam 1 weights 40% and the exam 2 weights 60% of the final grades. Put
garri49 [273]

Answer:

Imperfect substitutes

explanation:

The choices above are not perfect substitutes, meaning they can not be perfectly or directly replace the other. Imperfect substitutes are close substitutes but not perfect substitutes. Unlike perfect substitutes, imperfect substitutes satisfies same utility but has different characteristics and therefore not entirely substitutable. For example, while one may want to have the 40 marks too, he'd rather have 60 marks even if the criteria for a 60 mark score was increasingly hard.

8 0
3 years ago
Joline is solving the equation 0 = x2 – 5x – 4 using the quadratic formula. Which value is the negative real number solution to
daser333 [38]
A = 1
b = -5
c = -4
x1 = 5.70
x2 = -0.70

<span>Therefore, the negative real number is -0.70.</span>
7 0
3 years ago
Read 2 more answers
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