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erastova [34]
3 years ago
13

Solve for b. 63 = 9b+ 54

Mathematics
2 answers:
kari74 [83]3 years ago
5 0

Answer:

b=1

Step-by-step explanation:

63-54=9b

(63-54)/9=b

tiny-mole [99]3 years ago
4 0

Answer:

1

Step-by-step explanation:

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A bus went halfway from a village to a city at a certain speed. Then it stopped in traffic for an hour. In order to catch up the
k0ka [10]
We have to assume that the speed before being stuck was sufficient to get to the destination on time had there been no delay. Call that speed "s" in km/h.

Since 200 km is "halfway", the total distance must be 400 km.

time = distance / speed
total time = (time for first half) + (delay) + (time for second half)

400/s = 200/s + 1 + 200/(s+10) . . . .times are in hours, distances in km
200/s = 1 + 200/(s+10) . . . . . . . . . . subtract 200/s
200(s+10) = s(s+10) +200s . . . . . . .multiply by s(s+10)
0 = s² +10s - 2000 . . . . . . . . . . . . . .subtract the left side
(s+50)(s-40) = 0
Solutions are s = -50, s = 40

The speed of the bus before the traffic holdup was 40 km/h.
4 0
3 years ago
Help please sorry I'm slow on answer questions like this I suck at math :/
Gala2k [10]
The answer is C (working shown)

4 0
3 years ago
a company manufactures rectangular cardboard boxes. each box is 20 inches long and 15 inches wide. the heights of the boxes rang
Bogdan [553]

The range of possible values for the volume of the boxes would be 1200 - 1800 cubic inches

The dimensions of the rectangular cardboard boxes are given as

Case I

Length = 20 inches

breadth = 15 inches

Height = 4 inches

Volume of the rectangular cardboard box in case I = Length x breadth x breadth

= 20 x 15 x 4

= 1200 cubic inches

Similarly,

Case II

Length = 20 inches

breadth = 15 inches

Height = 6 inches

Volume of the rectangular cardboard box in case I = Length x breadth x breadth

= 20 x 15 x 6

= 1800 cubic inches

To learn more about volume, here

brainly.com/question/1578538

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4 0
2 years ago
In 1970 the male incarceration rate in the U.S. was approximately 190 inmates per 100,000 population. In 2008 the rate was 960 i
vichka [17]

Answer:

40.53%

Step-by-step explanation:

Percentage Increase = \frac{New Value - Old Value}{Old Value}\times100

Here, New Value = 960÷100,000

Old Value = 190÷ 100,000

∴ Percentage Increase = \dfrac{\frac{960}{100,000} - \frac{190}{100 ,000} }{\frac{190}{100,000}}\times100

⇒ Percentage Increase = 40.53%

Thus, percent increase in the male incarceration rate during given period is 40.53%.

6 0
3 years ago
A car is traveling down a highway at a constant speed, described by the equation d=65t, where d represents the distance, in mile
aivan3 [116]

Answer:

A)65 is the speed of the equation, because distance/time*speed

B)He will travel 195 Miles in 3 hours, 65*3

C)It will take around 25 minutes to reach 26 miles, since they are going 65 mph at the moment.

3 0
3 years ago
Read 2 more answers
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