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julia-pushkina [17]
3 years ago
9

Help...this is due in a few hours

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

21

Step-by-step explanation:

14+7=21.

You do this to allow you to get that outcome, because you know 7*7=49.

Therefore 21-14=7

7*-7=49

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Lilly rents a bike for $15 plus $2 per hour. What algeraic expression represents the situation?
nevsk [136]

Answer:

Solution

Step-by-step explanation:

If im wrong let me know okay!

If im wrong Im sorry Im only 15 and im working here to help

3 0
3 years ago
Read 2 more answers
The graph shows the cost of some taxi journeys<br><br> work out a formula for c in terms of n
Vitek1552 [10]

Answer:

c=\frac{3}{5}(n)+2.5

Step-by-step explanation:

see the attached figure to better understand the problem

Let

c -----> the cost of some taxi journeys

n ----> the number of miles

we know that

The graph is a line

The equation of a line in slope intercept form is

c=m(n)+b

where

m is the slope

b is the c-intercept (value of c when the value of n is equal to zero)

Observing the graph  we have the points

(0,2.5), (5,5.5)

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

m=\frac{c2-c1}{n2-n1}

substitute the values

m=\frac{5.5-2.5}{5-0}

m=\frac{3}{5}

we have

b=2.5 -----> because the point (0,2.5) is the c-intercept

substitute in the equation of slope-intercept form

c=\frac{3}{5}(n)+2.5

4 0
3 years ago
Please let me know if this is correct and if not what is the correct answer. Thanks
vlada-n [284]
There’s nothing on the picture
6 0
2 years ago
Read 2 more answers
Find an angle in each quadrant with a common reference angle with 77°, from 0°≤θ&lt;360°
mr Goodwill [35]

Answer:

Q1: 77°, Q2: 103°, Q3: 257°, Q4: 283°

Step-by-step explanation:

Note: Q1 = Quadrant 1

Q1: 77°

Q2: 180° - 77° = 103°

Q3: 180° + 77° = 257°

Q4: 360° - 77° = 283°

8 0
3 years ago
Read 2 more answers
I learned it before but now I forgot it. Please help!
JulijaS [17]
X should be 3,

because 8x means 8 times what number.

So 8x must be 3.

8 times 3 = 24. 24 +5 = 29.

Hope you Understand :) !
6 0
3 years ago
Read 2 more answers
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