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Sedbober [7]
3 years ago
10

Mark practices his guitar 3/4 hours each day. How many hours does he practice in seven days?

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
3/4 *7
or
0.75*7
The answer is 5.25
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the double number line shows that in 3 seconds an ostrich can run 63 meters. how far can the ostrich run in 5 seconds
inna [77]

Answer: 105 meters

Step-by-step explanation:

Ostrich's running rate is 63 meters/3 seconds. This can be reduced to 21 meters/second (21 m/s).

(21 m/s)*(5 sec) = 105 meters

5 0
2 years ago
What is the inverse of the function f(x) = 2x – 10?
Nadusha1986 [10]

Answer:

f⁻¹(x) = (1/2)x +5

Step-by-step explanation:

In y = f(x), swap the variables, then solve for y. The expression you get is f⁻¹(x).

... y = 2x -10

... x = 2y -10 . . . . . . swapped variables

... x +10 = 2y . . . . . add 10

... (1/2)x + 5 = y . . . . divide by 2

... f⁻¹(x) = (1/2)x + 5 . . . . . . rewrite using function notation

6 0
3 years ago
A van travels at a constant speed of x km/hr over a distance of 45km/hr. If the van increases its speed by 4km/h, it will be abl
harkovskaia [24]
Speed = Distance/Time. Let speed be V, distance D and time T

a)Given: D₁ =45km, V₁=x km/h 
V₁=D₁/T
V₁=45/T OR T= 45/V₁

b) Given : D₂ =48 km and V₂ = V₁ + 4 km/h
V₂ = 48/T, but V₂ = V₁+4, then:

V₁+4 = 48/T OR  T=48/(V₁+4). Since Time is same, then we can write:
45/V₁ =48/(V₁+4), solve for V₁:
45V₁ + 180 = 48V₁

3V₁ =180 and V₁ = x = 60 km/h
8 0
2 years ago
Angle B=? <br> HELP HELP HELP
o-na [289]

Answer:

I'm bad at math

Soo sorry

8 0
2 years ago
I need help!! Please help me
Zinaida [17]

Answer:

y= 6

Step-by-step explanation:

A horizontal line means y = something  ( the x value will change, but y remains the same)

In this case, the y value is 6

y= 6

8 0
3 years ago
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