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zvonat [6]
3 years ago
11

How many solutions does the following equation have?

Mathematics
2 answers:
Masteriza [31]3 years ago
8 0

Answer:

One solution

Step-by-step explanation:

Hi,

3(x + 5) = -4x + 8

3x + 15 = -4x + 8

7x + 15 = 8

7x = -7

x = -1

One solution :)

Alexxandr [17]3 years ago
4 0

Answer:

exactly one solution

Step-by-step explanation:

3x+15=_4x+8

7x=8 -15

x=_7/7

x=-1

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HELP HELP PLEASE THIS IS DUE TONIGHT
tatiyna

Answer:

slope: (positive) 2

y-intercept: -4

Step-by-step explanation:

slope is rise over run, rise is 2 up every 1 over, so slope is (2-0)/1

y-intercept is where the function intercepts or crosses the y-axis, that is at -4

5 0
3 years ago
Read 2 more answers
Need help ASAP ASAP
vovangra [49]

Answer:

X = 70, y = 21

Step-by-step explanation:

53 + 6y + 1 = 6y + 54

6y + 54 = 180

180 - 54 = 126

6y = 126

126 ÷ 6 = 21

Y = 21

21 × 6 + 1 = 127

127 = 2x - 13

127 + 13 = 140

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X = 70

Opposite angles are congruent and consecutive angles are supplementary.

Hope that helped and have a great day!

3 0
3 years ago
A 12-foot ladder rests against a brick wall at angle of 60°. Which expression gives the value of x, the height on the brick wall
Ede4ka [16]

the diagonal of the triangle representa the lenght of the ladder  and is 12 foot

as the Sen alpha = CO/H, OF THIS FORMULA , CO IS THE HICK OPPOSITE AND REPRESENT THE  HEIGHT

CO = Sen alpha*H = Sin (60°)* 12 = 10,39 FOOT

8 0
3 years ago
2 litres of lemonade costs £2.60. Find the cost of 6 litres of lemonade
Elena L [17]

Answer:

£7.80

Step-by-step explanation:

Since you multiply 2 by 3 to get 6, we are going to multiply 2.6 by 3

2.6 x 3 = 7.8

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7 0
3 years ago
The sum of two numbers is 25. Their difference is 9. What are the two numbers?
Lynna [10]
Using x and y as the numbers

x+y=25 -------#1
x-y=9  -------#2

Using addition of #1 and #2
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Using the value of x and plugging said value into #1 or #2, we can find y
x=17

x+y=25
17+y=25
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OR

x-y=9
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The numbers are 8 and 17
5 0
4 years ago
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