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Fudgin [204]
2 years ago
10

a car uses 9.5 L petrol per 100km a) determine the rate in km/L b) how far can the car travel with 47,5L petrol c) how many litr

es of petrol do they need to travel 350 km​
Mathematics
1 answer:
Lana71 [14]2 years ago
6 0

Step-by-step explanation:

a) determine the rate in km/L

==> 9.5 L/100km = 10.526316 km/L

b) how far can the car travel with 475L petrol

==> 0.210526315789473km/l

c) how many litres of petrol do they need to travel 350 km

==>Liters per km (l/km)2.86×10-3

Liters per 10 km (l/10 km)0.03

Liters per 100 km (l/100km)0.29

Kilometer per liter (km/l)350

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Write an equation for: melissa has 6 times as many quarters as Michelle. Together they have 896 quarters. How many quarters, q,
butalik [34]
Okay, so in this equation we will use the following variables:

a: for the number of quarters Michelle has
b: for the number of quarters Melissa has
q: for total number of quarters

So first, we will write out the statement "Melissa has 6 times as many quarters as Michelle" in the form of an equation:

6 times the number of quarters Michelle has is equal to the number of quarters Melissa has, or:
6(a)=b

So, we now know that Melissa has  6 times as many quarters as Michelle. 

So, if the have 896 quarters total, then you can write the problem as the number of quarters Michelle has added to the number of quarters Melissa has. This can be expressed as:

a+b=q

Since we know that Melissa has 6 times the quarters as Michelle, 6a is equivalent to b:

(6×a)=b

Since we know the total number of quarters is 896, we can rewrite it as this:

a+(6×a)= 896

Now that we know this, we can solve the problem with the following steps:

6a+a=7a

7a=896

896÷7= 128

a= 128

So, now that we know that know that Michelle has 128 quarters, we can find out how many Melissa has:

128×6= 768

Melissa has 768 quarters.

Now we check our work:

128+ (6×128)= 768

If everything is correct the following should be true:

a=128

and 

b=768

So, Michelle has 128 quarters.












6 0
3 years ago
If the rate of change of the graph of a linear equation is 4 and the y-intercept is (0, 8), what is the linear equation that rep
serg [7]

Answer:

y = 4x + 8

Step-by-step explanation:

The linear equation can be written in the form y = mx + b. "y" and "x" stay as they are. The "m" is the slope or rate of change. The b is the y-intercept.

Hope it helps!!!

(May I have brainliest if it's correct please?)

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3 years ago
Which answered describe the shape below ?
Vitek1552 [10]

Answer:

B. Trapezoid

Step-by-step explanation:

Trapezoid  is a quadrilateral with only one pair of parallel sides, so it's "B".

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3 years ago
Please help me on this one
lara31 [8.8K]

Answer:8600

Step-by-step explanation:

477

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Find the quotient.<br> -245 - 35<br> a. -7<br> b. - 5<br> C. 5<br> d 7
DanielleElmas [232]

a. -7 is your answer dear.

Step-by-step explanation:

Ur complete Question is like -245/35 = -7

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