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Phantasy [73]
3 years ago
6

Help with MATHEMATICS hw ASAp

Mathematics
1 answer:
Otrada [13]3 years ago
7 0
#5. $5.50 + 0.89r would be less than 26.00.

#19. 10x + 4 = 30 would be correct.

#20. would be C.

Hope this helps.


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Use the graph to find the unit rate for renting a kayak.​
Firlakuza [10]

Answer:

Unit rate: $15 per hour

ordered pair: (1 ,15)

Step-by-step explanation:

30 ÷ 2 = 15

45 ÷ 3 = 15  

--------------------------------------------------------------------------------------------------------  

they both have 15, which means the graph is proportional and the unit rate is $15 per hour

7 0
2 years ago
Jacob leaves his summer cottage and drives home. After
krok68 [10]

Answer:

A linear relationship can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (a, b) and (c, d) then the slope can be written as:

a = (a - c)/(b - d)

Here y will represent the distance between Jacob and his house, and the variable x represents the time that he has ben driving.

In this case, we know that after driving for 5 hours, he is 112km from home.

Then we can write this point as (5h, 112km)

We also know that after 7 hours he is 15km from home.

Then we can write this point as (7h, 15km)

Then the slope of this function will be:

a = (15km - 112km)/(7h - 5h) = -48.5 km/h

Then the equation is:

y = -(48.5 km/h)*x + b

To find the value of b, we can replace the values of one of the points, for example in the point (7h, 15km)

This means that we need to replace x by 12h, and y by 15km, then we get:

15km = -( 48.5 km/h)*7h + b

15km + ( 48.5 km/h)*7h = b = 354.5 km

then the equation will be:

y = (-48.5 km/h)*x + 354.5 km

Now we want to answer: How long had Jacob been driving when he was 209 km from  home?

Then we need to only replace y by 209km, and solve for x:

209km = (-48.5 km/h)*x + 354.5 km

209km - 354.5 km = (-48.5 km/h)*x

-145.5km =  (-48.5 km/h)*x

-145.5km/( -48.5 km/h) = x = 3h

So he is 209km away from his home after driving for 3 hours.

6 0
3 years ago
Find the value x2 when x = 5
Bumek [7]

Answer:

The value of x is 25

Step-by-step explanation:

x² when x = 5

So,

(5)² = 5 × 5 = 25

Thus, The value of x is 25

<u>-TheUnknownScientist</u><u> 72</u>

5 0
2 years ago
Read 2 more answers
What is a solution set
umka21 [38]
<span>the set of all the solutions of an equation or condition.



</span>
7 0
3 years ago
PLS HELP! ASAP!
Oduvanchick [21]

Answer:

i only know (d)

was -i s now

1.8 m - 0.6 m

1.2 m - 0.4 m

2.4 m - 0.8 m

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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