All categories

3 years ago

Which of the following is a solution to the equation:

Mathematics

1 answer:

timama [110]3 years ago

5 0

Step-by-step explanation:

The answer is the third one where x=6 and y= -4

Explanation:

Replace x and y with 6 and -4, so it becomes

2(6) = -5(-4) - 8

Then solve. 2×6 is 12 and -5×(-4) is 20, since two negatives make a positive. Then bring down -8

12 = 20 - 8

12 = 12

You might be interested in

Car rental company charges 29 per day and $0.24 per mile. If a car was rented for 7 days and the total bill was $448.76, how far

Paraphin [41]

Answer:

The car drove for 1,024 miles.

Step-by-step explanation:

x=miles driven

y=days driven

448.76=29x+0.24y

448.76=29(7)+0.24y

448.76=203+0.24y

245.76=0.24y

y=1,024

7 0

3 years ago

Solve the system by substitution <br><br> 7x-6y=16 (1)<br> y=-5<br><br> Show step by step

Nostrana [21]

Answer:

7x - 6y = 16

y = (-5)

using substitution method

7x - 6(-5) = 16

7x +30 = 16

7x = 16 - 30

7x = 14

x = 14/7

x= 2

4 0

3 years ago

Elena surveyed her classmates to see how many like to make jewelry. When she asked 20 of her classmates, 50 percent said they li

nordsb [41]

10 students of Elena's classmates like to make jewellery.

<u>Step-by-step explanation:</u>

Let total no.of classmates who liked the jewellery = x

Here, in the given problem, given she asked her classmates '20'. So, it clearly shows that total number of students/classmates = 20. Also, in that, 50% said like to make jewellery. Now find 'x' as below,

$x = 50 \% \text { of } 20$

$x = \frac{50}{100} \times 20$

$x = 10$

Hence, the total number of classmates who liked to make Jewellery = 10

5 0

3 years ago

In ΔWXY, the measure of ∠Y=90°, XW = 85, WY = 77, and YX = 36. What is the value of the cosine of ∠W to the nearest hundredth?

tankabanditka [31]

Answer:

0.91

Step-by-step explanation:

6 0

3 years ago

If you shift the linear parent function, (X) = x down 6 units, what is the

jeka94

Answer:

Step-by-step explanation:

For a parent function y = f(x) and n > 0:

f(x) + n : move the graph n units up

f(x) - n : move the graph n units down

f(x + n) : move the graph n units to the left

f(x - n) : move the graph n units to the right

===================================================

We have

f(x) = x

Transformation: 6 units down

f(x) - 6 = x - 6

3 0

3 years ago