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lesya692 [45]
3 years ago
11

Evaluate 3a2 4b2 for a = 2 and b = 3.

Mathematics
1 answer:
olasank [31]3 years ago
5 0
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F leonard bought 2 packs of batteries for x amount of dollars, how many packs of batteries could he purchase for $5.00 at the sa
Lemur [1.5K]
1.
The rate at which Leonard bought was 2 packs per x dollars, 

that is his buying rate was (2 packs)/(x dollars)=2/x (p/$)

2.

with 1 $ Leonard buys 2/x packs
then
with 5 $ Leonard buys (2/x)*5 = 10/x packs.

Answer: 10/x packs
5 0
3 years ago
11. Jim travelled at a speed of 18km/h for 2 hours. What was the distance covered?​
Igoryamba

Answer:

d = 36 km

Step-by-step explanation:

Speed of Jim, v = 18 km/h

Time, t = 2 hours

We need to find the distance covered. We know that the speed of an object is equal to the distance covered by it divided by total time taken.

v=\dfrac{d}{t}\\\\d=v\times t\\\\d=18\ km/h\times 2\ h\\\\=36\ km

So, he will cover 36 km.

7 0
3 years ago
A rectangular garden has a width that is 10 feet shorter than the length. Write and simplify an expression to represent the area
morpeh [17]

Answer:

x²-10x=area

Step-by-step explanation:

Area= length×width

Length: x

Width: x-10

Area= x(x-10)= x²-10x

I hope this helps...

:)

6 0
3 years ago
Write the equation of the line with a slope of 1/4 that passes through the point (8, -3).
pantera1 [17]

Answer:

-7

Step-by-step explanation:

-8 = (-1/4)(4) + b

-8 = -1 + b

b = -7

8 0
3 years ago
What is the slope of a line given the points (4,-2) and (6, 5)?
Ksenya-84 [330]

Answer:

3 1/2

Step-by-step explanation:

5--2=7

6-4=2

7/2= 3 1/2

5 0
2 years ago
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